This is the start of the stable review cycle for the 6.12.11 release. There are 122 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Thu, 23 Jan 2025 17:45:02 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.12.11-rc1... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.12.y and the diffstat can be found below.
thanks,
greg k-h
------------- Pseudo-Shortlog of commits:
Greg Kroah-Hartman gregkh@linuxfoundation.org Linux 6.12.11-rc1
Ryan Lee ryan.lee@canonical.com apparmor: allocate xmatch for nullpdb inside aa_alloc_null
Wayne Lin Wayne.Lin@amd.com drm/amd/display: Validate mdoe under MST LCT=1 case as well
Nicholas Susanto Nicholas.Susanto@amd.com Revert "drm/amd/display: Enable urgent latency adjustments for DCN35"
Leo Li sunpeng.li@amd.com drm/amd/display: Do not wait for PSR disable on vbl enable
Tom Chung chiahsuan.chung@amd.com drm/amd/display: Disable replay and psr while VRR is enabled
Tom Chung chiahsuan.chung@amd.com drm/amd/display: Fix PSR-SU not support but still call the amdgpu_dm_psr_enable
Christian König christian.koenig@amd.com drm/amdgpu: always sync the GFX pipe on ctx switch
Kenneth Feng kenneth.feng@amd.com drm/amdgpu: disable gfxoff with the compute workload on gfx12
Gui Chengming Jack.Gui@amd.com drm/amdgpu: fix fw attestation for MP0_14_0_{2/3}
Alex Deucher alexander.deucher@amd.com drm/amdgpu/smu13: update powersave optimizations
Ashutosh Dixit ashutosh.dixit@intel.com drm/xe/oa: Add missing VISACTL mux registers
Matthew Brost matthew.brost@intel.com drm/xe: Mark ComputeCS read mode as UC on iGPU
Ville Syrjälä ville.syrjala@linux.intel.com drm/i915/fb: Relax clear color alignment to 64 bytes
Xin Li (Intel) xin@zytor.com x86/fred: Fix the FRED RSP0 MSR out of sync with its per-CPU cache
Frederic Weisbecker frederic@kernel.org timers/migration: Enforce group initialization visibility to tree walkers
Frederic Weisbecker frederic@kernel.org timers/migration: Fix another race between hotplug and idle entry/exit
Koichiro Den koichiro.den@canonical.com hrtimers: Handle CPU state correctly on hotplug
Tomas Krcka krckatom@amazon.de irqchip/gic-v3-its: Don't enable interrupts in its_irq_set_vcpu_affinity()
Yogesh Lal quic_ylal@quicinc.com irqchip/gic-v3: Handle CPU_PM_ENTER_FAILED correctly
Joe Hattori joe@pf.is.s.u-tokyo.ac.jp irqchip: Plug a OF node reference leak in platform_irqchip_probe()
Steven Rostedt rostedt@goodmis.org tracing: gfp: Fix the GFP enum values shown for user space tracing tools
Donet Tom donettom@linux.ibm.com mm: vmscan : pgdemote vmstat is not getting updated when MGLRU is enabled.
Ryan Roberts ryan.roberts@arm.com mm: clear uffd-wp PTE/PMD state on mremap()
Leo Li sunpeng.li@amd.com drm/amd/display: Do not elevate mem_type change to full update
Ryan Roberts ryan.roberts@arm.com selftests/mm: set allocated memory to non-zero content in cow test
Guo Weikang guoweikang.kernel@gmail.com mm/kmemleak: fix percpu memory leak detection failure
Xiaolei Wang xiaolei.wang@windriver.com pmdomain: imx8mp-blk-ctrl: add missing loop break condition
Suren Baghdasaryan surenb@google.com tools: fix atomic_set() definition to set the value correctly
Sean Anderson sean.anderson@linux.dev gpio: xilinx: Convert gpio_lock to raw spinlock
Rik van Riel riel@surriel.com fs/proc: fix softlockup in __read_vmcore (part 2)
Marco Nelissen marco.nelissen@gmail.com filemap: avoid truncating 64-bit offset to 32 bits
Paul Fertser fercerpav@gmail.com net/ncsi: fix locking in Get MAC Address handling
Takashi Iwai tiwai@suse.de drm/nouveau/disp: Fix missing backlight control on Macbook 5,1
Dave Airlie airlied@redhat.com nouveau/fence: handle cross device fences properly
Stefano Garzarella sgarzare@redhat.com vsock: prevent null-ptr-deref in vsock_*[has_data|has_space]
Stefano Garzarella sgarzare@redhat.com vsock: reset socket state when de-assigning the transport
Stefano Garzarella sgarzare@redhat.com vsock/virtio: cancel close work in the destructor
Stefano Garzarella sgarzare@redhat.com vsock/virtio: discard packets if the transport changes
Stefano Garzarella sgarzare@redhat.com vsock/bpf: return early if transport is not assigned
Heiner Kallweit hkallweit1@gmail.com net: ethernet: xgbe: re-add aneg to supported features in PHY quirks
Paolo Abeni pabeni@redhat.com selftests: mptcp: avoid spurious errors on disconnect
Paolo Abeni pabeni@redhat.com mptcp: fix spurious wake-up on under memory pressure
Paolo Abeni pabeni@redhat.com mptcp: be sure to send ack when mptcp-level window re-opens
Tomi Valkeinen tomi.valkeinen+renesas@ideasonboard.com i2c: atr: Fix client detach
Kairui Song kasong@tencent.com zram: fix potential UAF of zram table
Luke D. Jones luke@ljones.dev ALSA: hda/realtek: fixup ASUS H7606W
Luke D. Jones luke@ljones.dev ALSA: hda/realtek: fixup ASUS GA605W
Stefan Binding sbinding@opensource.cirrus.com ALSA: hda/realtek: Add support for Ayaneo System using CS35L41 HDA
Juergen Gross jgross@suse.com x86/asm: Make serialize() always_inline
Peter Zijlstra peterz@infradead.org sched/fair: Fix update_cfs_group() vs DELAY_DEQUEUE
Peter Zijlstra peterz@infradead.org sched/fair: Fix EEVDF entity placement bug causing scheduling lag
Luis Chamberlain mcgrof@kernel.org nvmet: propagate npwg topology
Tejun Heo tj@kernel.org sched_ext: Fix dsq_local_on selftest
Hongguang Gao hongguang.gao@broadcom.com RDMA/bnxt_re: Fix to export port num to ib_query_qp
David Vernet void@manifault.com scx: Fix maximal BPF selftest prog
Ihor Solodrai ihor.solodrai@pm.me selftests/sched_ext: fix build after renames in sched_ext API
Oleg Nesterov oleg@redhat.com poll_wait: add mb() to fix theoretical race between waitqueue_active() and .poll()
Lizhi Xu lizhi.xu@windriver.com afs: Fix merge preference rule failure condition
Marco Nelissen marco.nelissen@gmail.com iomap: avoid avoid truncating 64-bit offset to 32 bits
Henry Huang henry.hj@antgroup.com sched_ext: keep running prev when prev->scx.slice != 0
Hans de Goede hdegoede@redhat.com ACPI: resource: acpi_dev_irq_override(): Check DMI match last
Srinivas Pandruvada srinivas.pandruvada@linux.intel.com platform/x86: ISST: Add Clearwater Forest to support list
Srinivas Pandruvada srinivas.pandruvada@linux.intel.com platform/x86/intel: power-domains: Add Clearwater Forest support
Jakub Kicinski kuba@kernel.org selftests: tc-testing: reduce rshift value
Koichiro Den koichiro.den@canonical.com gpio: sim: lock up configfs that an instantiated device depends on
Koichiro Den koichiro.den@canonical.com gpio: virtuser: lock up configfs that an instantiated device depends on
Manivannan Sadhasivam manivannan.sadhasivam@linaro.org scsi: ufs: core: Honor runtime/system PM levels if set by host controller drivers
Max Kellermann max.kellermann@ionos.com cachefiles: Parse the "secctx" immediately
David Howells dhowells@redhat.com netfs: Fix non-contiguous donation between completed reads
David Howells dhowells@redhat.com kheaders: Ignore silly-rename files
Zhang Kunbo zhangkunbo@huawei.com fs: fix missing declaration of init_files
Brahmajit Das brahmajit.xyz@gmail.com fs/qnx6: Fix building with GCC 15
Leo Stone leocstone@gmail.com hfs: Sanity check the root record
Lizhi Xu lizhi.xu@windriver.com mac802154: check local interfaces before deleting sdata list
Paulo Alcantara pc@manguebit.com smb: client: fix double free of TCP_Server_Info::hostname
David Lechner dlechner@baylibre.com hwmon: (ltc2991) Fix mixed signed/unsigned in DIV_ROUND_CLOSEST
Wolfram Sang wsa+renesas@sang-engineering.com i2c: testunit: on errors, repeat NACK until STOP
Wolfram Sang wsa+renesas@sang-engineering.com i2c: rcar: fix NACK handling when being a target
Wolfram Sang wsa+renesas@sang-engineering.com i2c: mux: demux-pinctrl: check initial mux selection, too
Pratyush Yadav pratyush@kernel.org Revert "mtd: spi-nor: core: replace dummy buswidth from addr to data"
David Lechner dlechner@baylibre.com hwmon: (tmp513) Fix division of negative numbers
Chenyuan Yang chenyuan0y@gmail.com platform/x86: lenovo-yoga-tab2-pro-1380-fastcharger: fix serdev race
Chenyuan Yang chenyuan0y@gmail.com platform/x86: dell-uart-backlight: fix serdev race
Joe Hattori joe@pf.is.s.u-tokyo.ac.jp i2c: core: fix reference leak in i2c_register_adapter()
MD Danish Anwar danishanwar@ti.com soc: ti: pruss: Fix pruss APIs
Claudiu Beznea claudiu.beznea.uj@bp.renesas.com reset: rzg2l-usbphy-ctrl: Assign proper of node to the allocated device
Maíra Canal mcanal@igalia.com drm/v3d: Ensure job pointer is set to NULL after job completion
Ian Forbes ian.forbes@broadcom.com drm/vmwgfx: Add new keep_resv BO param
Ian Forbes ian.forbes@broadcom.com drm/vmwgfx: Unreserve BO on error
Yu-Chun Lin eleanor15x@gmail.com drm/tests: helpers: Fix compiler warning
Jakub Kicinski kuba@kernel.org netdev: avoid CFI problems with sock priv helpers
Leon Romanovsky leon@kernel.org net/mlx5e: Always start IPsec sequence number from 1
Leon Romanovsky leon@kernel.org net/mlx5e: Rely on reqid in IPsec tunnel mode
Leon Romanovsky leon@kernel.org net/mlx5e: Fix inversion dependency warning while enabling IPsec tunnel
Mark Zhang markzhang@nvidia.com net/mlx5: Clear port select structure when fail to create
Chris Mi cmi@nvidia.com net/mlx5: SF, Fix add port error handling
Yishai Hadas yishaih@nvidia.com net/mlx5: Fix a lockdep warning as part of the write combining test
Patrisious Haddad phaddad@nvidia.com net/mlx5: Fix RDMA TX steering prio
Pavel Begunkov asml.silence@gmail.com net: make page_pool_ref_netmem work with net iovs
Kevin Groeneveld kgroeneveld@lenbrook.com net: fec: handle page_pool_dev_alloc_pages error
Sean Anderson sean.anderson@linux.dev net: xilinx: axienet: Fix IRQ coalescing packet count overflow
Dan Carpenter dan.carpenter@linaro.org nfp: bpf: prevent integer overflow in nfp_bpf_event_output()
Viresh Kumar viresh.kumar@linaro.org cpufreq: Move endif to the end of Kconfig file
Kuniyuki Iwashima kuniyu@amazon.com pfcp: Destroy device along with udp socket's netns dismantle.
Kuniyuki Iwashima kuniyu@amazon.com gtp: Destroy device along with udp socket's netns dismantle.
Kuniyuki Iwashima kuniyu@amazon.com gtp: Use for_each_netdev_rcu() in gtp_genl_dump_pdp().
Qu Wenruo wqu@suse.com btrfs: add the missing error handling inside get_canonical_dev_path
Rafael J. Wysocki rafael.j.wysocki@intel.com cpuidle: teo: Update documentation after previous changes
Karol Kolacinski karol.kolacinski@intel.com ice: Add correct PHY lane assignment
Sergey Temerkhanov sergey.temerkhanov@intel.com ice: Use ice_adapter for PTP shared data instead of auxdev
Sergey Temerkhanov sergey.temerkhanov@intel.com ice: Add ice_get_ctrl_ptp() wrapper to simplify the code
Sergey Temerkhanov sergey.temerkhanov@intel.com ice: Introduce ice_get_phy_model() wrapper
Karol Kolacinski karol.kolacinski@intel.com ice: Fix ETH56G FC-FEC Rx offset value
Karol Kolacinski karol.kolacinski@intel.com ice: Fix quad registers read on E825
Karol Kolacinski karol.kolacinski@intel.com ice: Fix E825 initialization
Artem Chernyshev artem.chernyshev@red-soft.ru pktgen: Avoid out-of-bounds access in get_imix_entries
Ilya Maximets i.maximets@ovn.org openvswitch: fix lockup on tx to unregistering netdev with carrier
Paul Barker paul.barker.ct@bp.renesas.com net: ravb: Fix max TX frame size for RZ/V2M
Jakub Kicinski kuba@kernel.org eth: bnxt: always recalculate features after XDP clearing, fix null-deref
Michal Luczaj mhal@rbox.co bpf: Fix bpf_sk_select_reuseport() memory leak
Sudheer Kumar Doredla s-doredla@ti.com net: ethernet: ti: cpsw_ale: Fix cpsw_ale_get_field()
Ard Biesheuvel ardb@kernel.org efi/zboot: Limit compression options to GZIP and ZSTD
-------------
Diffstat:
Makefile | 4 +- arch/x86/include/asm/special_insns.h | 2 +- arch/x86/kernel/fred.c | 8 +- drivers/acpi/resource.c | 6 +- drivers/block/zram/zram_drv.c | 1 + drivers/cpufreq/Kconfig | 4 +- drivers/cpuidle/governors/teo.c | 91 +++---- drivers/firmware/efi/Kconfig | 4 - drivers/firmware/efi/libstub/Makefile.zboot | 18 +- drivers/gpio/gpio-sim.c | 48 +++- drivers/gpio/gpio-virtuser.c | 49 +++- drivers/gpio/gpio-xilinx.c | 32 +-- drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 5 +- drivers/gpu/drm/amd/amdgpu/amdgpu_fw_attestation.c | 4 + drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 4 +- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 41 ++- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c | 25 +- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c | 4 +- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.h | 2 +- .../drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 2 +- .../amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 14 +- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c | 35 ++- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.h | 3 +- .../gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c | 4 +- .../gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c | 11 +- drivers/gpu/drm/i915/display/intel_fb.c | 2 +- drivers/gpu/drm/nouveau/nouveau_fence.c | 6 +- drivers/gpu/drm/nouveau/nvkm/engine/disp/mcp77.c | 1 + drivers/gpu/drm/tests/drm_kunit_helpers.c | 3 +- drivers/gpu/drm/v3d/v3d_irq.c | 4 + drivers/gpu/drm/vmwgfx/vmwgfx_bo.c | 3 +- drivers/gpu/drm/vmwgfx/vmwgfx_bo.h | 3 +- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 7 +- drivers/gpu/drm/vmwgfx/vmwgfx_gem.c | 1 + drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 20 +- drivers/gpu/drm/vmwgfx/vmwgfx_shader.c | 7 +- drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c | 5 +- drivers/gpu/drm/xe/xe_hw_engine.c | 2 +- drivers/gpu/drm/xe/xe_oa.c | 1 + drivers/hwmon/ltc2991.c | 2 +- drivers/hwmon/tmp513.c | 7 +- drivers/i2c/busses/i2c-rcar.c | 20 +- drivers/i2c/i2c-atr.c | 2 +- drivers/i2c/i2c-core-base.c | 1 + drivers/i2c/i2c-slave-testunit.c | 19 +- drivers/i2c/muxes/i2c-demux-pinctrl.c | 4 +- drivers/infiniband/hw/bnxt_re/ib_verbs.c | 1 + drivers/infiniband/hw/bnxt_re/ib_verbs.h | 4 + drivers/infiniband/hw/bnxt_re/qplib_fp.c | 1 + drivers/infiniband/hw/bnxt_re/qplib_fp.h | 1 + drivers/irqchip/irq-gic-v3-its.c | 2 +- drivers/irqchip/irq-gic-v3.c | 2 +- drivers/irqchip/irqchip.c | 4 +- drivers/mtd/spi-nor/core.c | 2 +- drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c | 19 +- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 25 +- drivers/net/ethernet/broadcom/bnxt/bnxt.h | 2 +- drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c | 7 - drivers/net/ethernet/freescale/fec_main.c | 19 +- drivers/net/ethernet/intel/ice/ice.h | 5 + drivers/net/ethernet/intel/ice/ice_adapter.c | 6 + drivers/net/ethernet/intel/ice/ice_adapter.h | 22 +- drivers/net/ethernet/intel/ice/ice_adminq_cmd.h | 1 + drivers/net/ethernet/intel/ice/ice_common.c | 51 ++++ drivers/net/ethernet/intel/ice/ice_common.h | 1 + drivers/net/ethernet/intel/ice/ice_main.c | 6 +- drivers/net/ethernet/intel/ice/ice_ptp.c | 165 +++++++----- drivers/net/ethernet/intel/ice/ice_ptp.h | 9 +- drivers/net/ethernet/intel/ice/ice_ptp_consts.h | 2 +- drivers/net/ethernet/intel/ice/ice_ptp_hw.c | 285 +++++++++++---------- drivers/net/ethernet/intel/ice/ice_ptp_hw.h | 5 + drivers/net/ethernet/intel/ice/ice_type.h | 2 - .../ethernet/mellanox/mlx5/core/en_accel/ipsec.c | 22 +- .../mellanox/mlx5/core/en_accel/ipsec_fs.c | 12 +- .../mellanox/mlx5/core/en_accel/ipsec_offload.c | 11 +- drivers/net/ethernet/mellanox/mlx5/core/fs_core.c | 1 + .../net/ethernet/mellanox/mlx5/core/lag/port_sel.c | 4 +- .../net/ethernet/mellanox/mlx5/core/sf/devlink.c | 1 + drivers/net/ethernet/mellanox/mlx5/core/wc.c | 24 +- drivers/net/ethernet/netronome/nfp/bpf/offload.c | 3 +- drivers/net/ethernet/renesas/ravb_main.c | 1 + drivers/net/ethernet/ti/cpsw_ale.c | 14 +- drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 6 + drivers/net/gtp.c | 26 +- drivers/net/pfcp.c | 15 +- drivers/nvme/target/io-cmd-bdev.c | 2 +- drivers/platform/x86/dell/dell-uart-backlight.c | 5 +- .../x86/intel/speed_select_if/isst_if_common.c | 1 + drivers/platform/x86/intel/tpmi_power_domains.c | 1 + .../x86/lenovo-yoga-tab2-pro-1380-fastcharger.c | 5 +- drivers/pmdomain/imx/imx8mp-blk-ctrl.c | 2 +- drivers/reset/reset-rzg2l-usbphy-ctrl.c | 1 + drivers/ufs/core/ufshcd.c | 9 +- fs/afs/addr_prefs.c | 6 +- fs/btrfs/volumes.c | 4 + fs/cachefiles/daemon.c | 14 +- fs/cachefiles/internal.h | 3 +- fs/cachefiles/security.c | 6 +- fs/file.c | 1 + fs/hfs/super.c | 4 +- fs/iomap/buffered-io.c | 2 +- fs/netfs/read_collect.c | 9 +- fs/proc/vmcore.c | 2 + fs/qnx6/inode.c | 11 +- fs/smb/client/connect.c | 3 +- include/linux/hrtimer.h | 1 + include/linux/poll.h | 10 +- include/linux/pruss_driver.h | 12 +- include/linux/userfaultfd_k.h | 12 + include/net/page_pool/helpers.h | 2 +- include/trace/events/mmflags.h | 63 +++++ kernel/cpu.c | 2 +- kernel/gen_kheaders.sh | 1 + kernel/sched/ext.c | 11 +- kernel/sched/fair.c | 151 ++--------- kernel/time/hrtimer.c | 11 +- kernel/time/timer_migration.c | 43 +++- mm/filemap.c | 2 +- mm/huge_memory.c | 12 + mm/hugetlb.c | 14 +- mm/kmemleak.c | 2 +- mm/mremap.c | 32 ++- mm/vmscan.c | 3 + net/core/filter.c | 30 ++- net/core/netdev-genl-gen.c | 14 +- net/core/pktgen.c | 6 +- net/mac802154/iface.c | 4 + net/mptcp/options.c | 6 +- net/mptcp/protocol.h | 9 +- net/ncsi/internal.h | 2 + net/ncsi/ncsi-manage.c | 16 +- net/ncsi/ncsi-rsp.c | 19 +- net/openvswitch/actions.c | 4 +- net/vmw_vsock/af_vsock.c | 18 ++ net/vmw_vsock/virtio_transport_common.c | 38 ++- net/vmw_vsock/vsock_bpf.c | 9 + security/apparmor/policy.c | 1 + sound/pci/hda/patch_realtek.c | 3 + tools/net/ynl/ynl-gen-c.py | 16 +- tools/testing/selftests/mm/cow.c | 8 +- tools/testing/selftests/net/mptcp/mptcp_connect.c | 43 +++- .../selftests/sched_ext/ddsp_bogus_dsq_fail.bpf.c | 2 +- .../selftests/sched_ext/ddsp_vtimelocal_fail.bpf.c | 4 +- .../testing/selftests/sched_ext/dsp_local_on.bpf.c | 7 +- tools/testing/selftests/sched_ext/dsp_local_on.c | 5 +- .../selftests/sched_ext/enq_select_cpu_fails.bpf.c | 2 +- tools/testing/selftests/sched_ext/exit.bpf.c | 4 +- tools/testing/selftests/sched_ext/maximal.bpf.c | 8 +- .../selftests/sched_ext/select_cpu_dfl.bpf.c | 2 +- .../sched_ext/select_cpu_dfl_nodispatch.bpf.c | 2 +- .../selftests/sched_ext/select_cpu_dispatch.bpf.c | 2 +- .../sched_ext/select_cpu_dispatch_bad_dsq.bpf.c | 2 +- .../sched_ext/select_cpu_dispatch_dbl_dsp.bpf.c | 4 +- .../selftests/sched_ext/select_cpu_vtime.bpf.c | 8 +- .../tc-testing/tc-tests/filters/flow.json | 4 +- tools/testing/shared/linux/maple_tree.h | 2 +- tools/testing/vma/linux/atomic.h | 2 +- 157 files changed, 1345 insertions(+), 766 deletions(-)
On 1/21/25 09:50, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 6.12.11 release. There are 122 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Thu, 23 Jan 2025 17:45:02 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.12.11-rc1... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.12.y and the diffstat can be found below.
thanks,
greg k-h
On ARCH_BRCMSTB using 32-bit and 64-bit ARM kernels, build tested on BMIPS_GENERIC:
Tested-by: Florian Fainelli florian.fainelli@broadcom.com
Am 21.01.2025 um 18:50 schrieb Greg Kroah-Hartman:
This is the start of the stable review cycle for the 6.12.11 release. There are 122 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Builds, boots and works on my 2-socket Ivy Bridge Xeon E5-2697 v2 server. No dmesg oddities or regressions found.
Tested-by: Peter Schneider pschneider1968@googlemail.com
Beste Grüße, Peter Schneider
Hi Greg,
On Tue, Jan 21, 2025 at 06:50:48PM +0100, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 6.12.11 release. There are 122 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Thu, 23 Jan 2025 17:45:02 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.12.11-rc1... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.12.y and the diffstat can be found below.
Built and lightly tested, when booting I'm noticing the following in dmesg:
[ +0.007932] ------------[ cut here ]------------ [ +0.000003] WARNING: CPU: 1 PID: 0 at kernel/sched/fair.c:5250 place_entity+0x127/0x130 [ +0.000006] Modules linked in: ahci(E) libahci(E) crc32_pclmul(E) xhci_hcd(E) libata(E) psmouse(E) crc32c_intel(E) > [ +0.000021] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Tainted: G E 6.12.11-rc1+ #1 [ +0.000004] Tainted: [E]=UNSIGNED_MODULE [ +0.000002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ +0.000002] RIP: 0010:place_entity+0x127/0x130 [ +0.000003] Code: 01 6b 28 c6 43 52 00 5b 5d 41 5c 41 5d 41 5e e9 2f 83 bc 00 b9 02 00 00 00 49 c1 ee 0a 49 39 ce 4> [ +0.000002] RSP: 0018:ffffbe1f400f8d08 EFLAGS: 00010046 [ +0.000003] RAX: 0000000000000000 RBX: ffff9ed7c0c0f200 RCX: 00000000000000c2 [ +0.000002] RDX: 0000000000000000 RSI: 000000000000001d RDI: 000000000078cfd5 [ +0.000002] RBP: 0000000029d40d60 R08: 00000000a8e83f00 R09: 0000000000000002 [ +0.000002] R10: 00000000006e3ab2 R11: ffff9ed7d4056690 R12: ffff9ed83bd360c0 [ +0.000002] R13: 0000000000000000 R14: 00000000000000c2 R15: 000000000016e360 [ +0.000003] FS: 0000000000000000(0000) GS:ffff9ed83bd00000(0000) knlGS:0000000000000000 [ +0.000002] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ +0.000002] CR2: 00007f9f5a7245d8 CR3: 0000000100bfc000 CR4: 0000000000350ef0 [ +0.000003] Call Trace: [ +0.000003] <IRQ> [ +0.000002] ? place_entity+0x127/0x130 [ +0.000002] ? __warn.cold+0x93/0xf6 [ +0.000004] ? place_entity+0x127/0x130 [ +0.000003] ? report_bug+0xff/0x140 [ +0.000005] ? handle_bug+0x58/0x90 [ +0.000002] ? exc_invalid_op+0x17/0x70 [ +0.000003] ? asm_exc_invalid_op+0x1a/0x20 [ +0.000006] ? place_entity+0x127/0x130 [ +0.000003] ? place_entity+0x99/0x130 [ +0.000004] reweight_entity+0x1af/0x1d0 [ +0.000003] enqueue_task_fair+0x30c/0x5e0 [ +0.000005] enqueue_task+0x35/0x150 [ +0.000004] activate_task+0x3a/0x60 [ +0.000003] sched_balance_rq+0x7c6/0xee0 [ +0.000008] sched_balance_domains+0x25b/0x350 [ +0.000005] handle_softirqs+0xcf/0x280 [ +0.000006] __irq_exit_rcu+0x8d/0xb0 [ +0.000003] sysvec_apic_timer_interrupt+0x71/0x90 [ +0.000003] </IRQ> [ +0.000002] <TASK> [ +0.000002] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ +0.000002] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ +0.000004] Code: 22 d7 e9 b4 01 01 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 0> [ +0.000002] RSP: 0018:ffffbe1f400bbed8 EFLAGS: 00000202 [ +0.000003] RAX: 0000000000000001 RBX: ffff9ed7c033e600 RCX: ffff9ed7c0647830 [ +0.000001] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00000000000017b4 [ +0.000002] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 [ +0.000002] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ +0.000001] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ +0.000006] default_idle+0x9/0x20 [ +0.000003] default_idle_call+0x29/0x100 [ +0.000002] do_idle+0x1fe/0x240 [ +0.000005] cpu_startup_entry+0x29/0x30 [ +0.000003] start_secondary+0x11e/0x140 [ +0.000004] common_startup_64+0x13e/0x141 [ +0.000007] </TASK> [ +0.000001] ---[ end trace 0000000000000000 ]---
Not yet bisected which change causes it.
Regards, Salvatore
Hi Greg,
On 21/01/2025 21:46, Salvatore Bonaccorso wrote:
Hi Greg,
On Tue, Jan 21, 2025 at 06:50:48PM +0100, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 6.12.11 release. There are 122 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Thu, 23 Jan 2025 17:45:02 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.12.11-rc1... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.12.y and the diffstat can be found below.
Built and lightly tested, when booting I'm noticing the following in dmesg:
[ +0.007932] ------------[ cut here ]------------ [ +0.000003] WARNING: CPU: 1 PID: 0 at kernel/sched/fair.c:5250 place_entity+0x127/0x130 [ +0.000006] Modules linked in: ahci(E) libahci(E) crc32_pclmul(E) xhci_hcd(E) libata(E) psmouse(E) crc32c_intel(E) > [ +0.000021] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Tainted: G E 6.12.11-rc1+ #1 [ +0.000004] Tainted: [E]=UNSIGNED_MODULE [ +0.000002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ +0.000002] RIP: 0010:place_entity+0x127/0x130 [ +0.000003] Code: 01 6b 28 c6 43 52 00 5b 5d 41 5c 41 5d 41 5e e9 2f 83 bc 00 b9 02 00 00 00 49 c1 ee 0a 49 39 ce 4> [ +0.000002] RSP: 0018:ffffbe1f400f8d08 EFLAGS: 00010046 [ +0.000003] RAX: 0000000000000000 RBX: ffff9ed7c0c0f200 RCX: 00000000000000c2 [ +0.000002] RDX: 0000000000000000 RSI: 000000000000001d RDI: 000000000078cfd5 [ +0.000002] RBP: 0000000029d40d60 R08: 00000000a8e83f00 R09: 0000000000000002 [ +0.000002] R10: 00000000006e3ab2 R11: ffff9ed7d4056690 R12: ffff9ed83bd360c0 [ +0.000002] R13: 0000000000000000 R14: 00000000000000c2 R15: 000000000016e360 [ +0.000003] FS: 0000000000000000(0000) GS:ffff9ed83bd00000(0000) knlGS:0000000000000000 [ +0.000002] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ +0.000002] CR2: 00007f9f5a7245d8 CR3: 0000000100bfc000 CR4: 0000000000350ef0 [ +0.000003] Call Trace: [ +0.000003] <IRQ> [ +0.000002] ? place_entity+0x127/0x130 [ +0.000002] ? __warn.cold+0x93/0xf6 [ +0.000004] ? place_entity+0x127/0x130 [ +0.000003] ? report_bug+0xff/0x140 [ +0.000005] ? handle_bug+0x58/0x90 [ +0.000002] ? exc_invalid_op+0x17/0x70 [ +0.000003] ? asm_exc_invalid_op+0x1a/0x20 [ +0.000006] ? place_entity+0x127/0x130 [ +0.000003] ? place_entity+0x99/0x130 [ +0.000004] reweight_entity+0x1af/0x1d0 [ +0.000003] enqueue_task_fair+0x30c/0x5e0 [ +0.000005] enqueue_task+0x35/0x150 [ +0.000004] activate_task+0x3a/0x60 [ +0.000003] sched_balance_rq+0x7c6/0xee0 [ +0.000008] sched_balance_domains+0x25b/0x350 [ +0.000005] handle_softirqs+0xcf/0x280 [ +0.000006] __irq_exit_rcu+0x8d/0xb0 [ +0.000003] sysvec_apic_timer_interrupt+0x71/0x90 [ +0.000003] </IRQ> [ +0.000002] <TASK> [ +0.000002] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ +0.000002] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ +0.000004] Code: 22 d7 e9 b4 01 01 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 0> [ +0.000002] RSP: 0018:ffffbe1f400bbed8 EFLAGS: 00000202 [ +0.000003] RAX: 0000000000000001 RBX: ffff9ed7c033e600 RCX: ffff9ed7c0647830 [ +0.000001] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00000000000017b4 [ +0.000002] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 [ +0.000002] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ +0.000001] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ +0.000006] default_idle+0x9/0x20 [ +0.000003] default_idle_call+0x29/0x100 [ +0.000002] do_idle+0x1fe/0x240 [ +0.000005] cpu_startup_entry+0x29/0x30 [ +0.000003] start_secondary+0x11e/0x140 [ +0.000004] common_startup_64+0x13e/0x141 [ +0.000007] </TASK> [ +0.000001] ---[ end trace 0000000000000000 ]---
Not yet bisected which change causes it.
I am seeing the same on Tegra. I have not looked to see which change this is yet either.
Jon
On 1/21/25 23:04, Jon Hunter wrote:
Hi Greg,
On 21/01/2025 21:46, Salvatore Bonaccorso wrote:
Hi Greg,
On Tue, Jan 21, 2025 at 06:50:48PM +0100, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 6.12.11 release. There are 122 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Thu, 23 Jan 2025 17:45:02 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.12.11-rc1...
or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.12.y and the diffstat can be found below.
Built and lightly tested, when booting I'm noticing the following in dmesg:
[ +0.007932] ------------[ cut here ]------------ [ +0.000003] WARNING: CPU: 1 PID: 0 at kernel/sched/fair.c:5250 place_entity+0x127/0x130 [ +0.000006] Modules linked in: ahci(E) libahci(E) crc32_pclmul(E) xhci_hcd(E) libata(E) psmouse(E) crc32c_intel(E) > [ +0.000021] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Tainted: G E 6.12.11-rc1+ #1 [ +0.000004] Tainted: [E]=UNSIGNED_MODULE [ +0.000002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ +0.000002] RIP: 0010:place_entity+0x127/0x130 [ +0.000003] Code: 01 6b 28 c6 43 52 00 5b 5d 41 5c 41 5d 41 5e e9 2f 83 bc 00 b9 02 00 00 00 49 c1 ee 0a 49 39 ce 4> [ +0.000002] RSP: 0018:ffffbe1f400f8d08 EFLAGS: 00010046 [ +0.000003] RAX: 0000000000000000 RBX: ffff9ed7c0c0f200 RCX: 00000000000000c2 [ +0.000002] RDX: 0000000000000000 RSI: 000000000000001d RDI: 000000000078cfd5 [ +0.000002] RBP: 0000000029d40d60 R08: 00000000a8e83f00 R09: 0000000000000002 [ +0.000002] R10: 00000000006e3ab2 R11: ffff9ed7d4056690 R12: ffff9ed83bd360c0 [ +0.000002] R13: 0000000000000000 R14: 00000000000000c2 R15: 000000000016e360 [ +0.000003] FS: 0000000000000000(0000) GS:ffff9ed83bd00000(0000) knlGS:0000000000000000 [ +0.000002] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ +0.000002] CR2: 00007f9f5a7245d8 CR3: 0000000100bfc000 CR4: 0000000000350ef0 [ +0.000003] Call Trace: [ +0.000003] <IRQ> [ +0.000002] ? place_entity+0x127/0x130 [ +0.000002] ? __warn.cold+0x93/0xf6 [ +0.000004] ? place_entity+0x127/0x130 [ +0.000003] ? report_bug+0xff/0x140 [ +0.000005] ? handle_bug+0x58/0x90 [ +0.000002] ? exc_invalid_op+0x17/0x70 [ +0.000003] ? asm_exc_invalid_op+0x1a/0x20 [ +0.000006] ? place_entity+0x127/0x130 [ +0.000003] ? place_entity+0x99/0x130 [ +0.000004] reweight_entity+0x1af/0x1d0 [ +0.000003] enqueue_task_fair+0x30c/0x5e0 [ +0.000005] enqueue_task+0x35/0x150 [ +0.000004] activate_task+0x3a/0x60 [ +0.000003] sched_balance_rq+0x7c6/0xee0 [ +0.000008] sched_balance_domains+0x25b/0x350 [ +0.000005] handle_softirqs+0xcf/0x280 [ +0.000006] __irq_exit_rcu+0x8d/0xb0 [ +0.000003] sysvec_apic_timer_interrupt+0x71/0x90 [ +0.000003] </IRQ> [ +0.000002] <TASK> [ +0.000002] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ +0.000002] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ +0.000004] Code: 22 d7 e9 b4 01 01 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 0> [ +0.000002] RSP: 0018:ffffbe1f400bbed8 EFLAGS: 00000202 [ +0.000003] RAX: 0000000000000001 RBX: ffff9ed7c033e600 RCX: ffff9ed7c0647830 [ +0.000001] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00000000000017b4 [ +0.000002] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 [ +0.000002] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ +0.000001] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ +0.000006] default_idle+0x9/0x20 [ +0.000003] default_idle_call+0x29/0x100 [ +0.000002] do_idle+0x1fe/0x240 [ +0.000005] cpu_startup_entry+0x29/0x30 [ +0.000003] start_secondary+0x11e/0x140 [ +0.000004] common_startup_64+0x13e/0x141 [ +0.000007] </TASK> [ +0.000001] ---[ end trace 0000000000000000 ]---
Not yet bisected which change causes it.
I am seeing the same on Tegra. I have not looked to see which change this is yet either.
Jon
Seeing this on RISC-V also.
Jan 21 23:51:10 riscv64 kernel: WARNING: CPU: 3 PID: 16 at kernel/sched/fair.c:5250 place_entity+0x108/0x110 Jan 21 23:51:10 riscv64 kernel: Modules linked in: Jan 21 23:51:10 riscv64 kernel: CPU: 3 UID: 0 PID: 16 Comm: rcu_preempt Not tainted 6.12.11-rc1 #2 Jan 21 23:51:10 riscv64 kernel: Hardware name: SiFive HiFive Unmatched A00 (DT) Jan 21 23:51:10 riscv64 kernel: epc : place_entity+0x108/0x110 Jan 21 23:51:10 riscv64 kernel: ra : place_entity+0x9c/0x110 Jan 21 23:51:10 riscv64 kernel: epc : ffffffff8006ed68 ra : ffffffff8006ecfc sp : ffffffc60009bac0 Jan 21 23:51:10 riscv64 kernel: gp : ffffffff81fa6318 tp : ffffffd680323b00 t0 : 0000000000000000 Jan 21 23:51:10 riscv64 kernel: t1 : 0000000000000000 t2 : 0000000000000000 s0 : ffffffc60009bb00 Jan 21 23:51:10 riscv64 kernel: s1 : ffffffd6809f5000 a0 : 000000000053b491 a1 : 0000000000000000 Jan 21 23:51:10 riscv64 kernel: a2 : 0000000000000002 a3 : 0000000000000000 a4 : 0000000000000000 Jan 21 23:51:10 riscv64 kernel: a5 : 0000000000000000 a6 : 0000000000000000 a7 : 0000000000000000 Jan 21 23:51:10 riscv64 kernel: s2 : 0000000031acb37b s3 : 0000000000000000 s4 : 000000000006920d Jan 21 23:51:10 riscv64 kernel: s5 : ffffffd9fedb2a00 s6 : ffffffd9fedb2900 s7 : ffffffd6829cbb00 Jan 21 23:51:10 riscv64 kernel: s8 : 0000000000000000 s9 : 0000000000000001 s10: 0000000000000201 Jan 21 23:51:10 riscv64 kernel: s11: 0000000000000000 t3 : 0000000000000000 t4 : 0000000000000000 Jan 21 23:51:10 riscv64 kernel: t5 : 0000000000000000 t6 : 0000000000000000 Jan 21 23:51:10 riscv64 kernel: status: 0000000200000100 badaddr: 0000000000000002 cause: 0000000000000003 Jan 21 23:51:10 riscv64 kernel: [<ffffffff8006ed68>] place_entity+0x108/0x110 Jan 21 23:51:10 riscv64 kernel: [<ffffffff8006efe2>] reweight_entity+0x182/0x1b0 Jan 21 23:51:10 riscv64 kernel: [<ffffffff8006f0c8>] update_cfs_group+0x78/0xa8 Jan 21 23:51:10 riscv64 kernel: [<ffffffff8006fc4c>] dequeue_entities+0x114/0x3d8 Jan 21 23:51:10 riscv64 kernel: [<ffffffff80070084>] pick_task_fair+0xb4/0x110 Jan 21 23:51:10 riscv64 kernel: [<ffffffff80077a3c>] pick_next_task_fair+0x1c/0x2f0 Jan 21 23:51:10 riscv64 kernel: [<ffffffff80dc5556>] __schedule+0x176/0xc20 Jan 21 23:51:10 riscv64 kernel: [<ffffffff80dc6022>] schedule+0x22/0x148 Jan 21 23:51:10 riscv64 kernel: [<ffffffff80dcc072>] schedule_timeout+0x82/0x178 Jan 21 23:51:10 riscv64 kernel: [<ffffffff800cb996>] rcu_gp_fqs_loop+0x346/0x4e8 Jan 21 23:51:10 riscv64 kernel: [<ffffffff800cea62>] rcu_gp_kthread+0x12a/0x150 Jan 21 23:51:10 riscv64 kernel: [<ffffffff8004db58>] kthread+0xc8/0xe8 Jan 21 23:51:10 riscv64 kernel: [<ffffffff80dceefe>] ret_from_fork+0xe/0x18 Jan 21 23:51:10 riscv64 kernel: ---[ end trace 0000000000000000 ]---
Reverting commit 11d21f2ae4a254aeef84fcf7b6314f5dd045151f "sched/fair: Fix EEVDF entity placement bug causing scheduling lag" removes the warning.
On Wed, Jan 22, 2025 at 01:01:42AM -0800, Ron Economos wrote:
On 1/21/25 23:04, Jon Hunter wrote:
Hi Greg,
On 21/01/2025 21:46, Salvatore Bonaccorso wrote:
Hi Greg,
On Tue, Jan 21, 2025 at 06:50:48PM +0100, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 6.12.11 release. There are 122 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Thu, 23 Jan 2025 17:45:02 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.12.11-rc1...
or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.12.y and the diffstat can be found below.
Built and lightly tested, when booting I'm noticing the following in dmesg:
[ +0.007932] ------------[ cut here ]------------ [ +0.000003] WARNING: CPU: 1 PID: 0 at kernel/sched/fair.c:5250 place_entity+0x127/0x130 [ +0.000006] Modules linked in: ahci(E) libahci(E) crc32_pclmul(E) xhci_hcd(E) libata(E) psmouse(E) crc32c_intel(E) > [ +0.000021] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Tainted: G E 6.12.11-rc1+ #1 [ +0.000004] Tainted: [E]=UNSIGNED_MODULE [ +0.000002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ +0.000002] RIP: 0010:place_entity+0x127/0x130 [ +0.000003] Code: 01 6b 28 c6 43 52 00 5b 5d 41 5c 41 5d 41 5e e9 2f 83 bc 00 b9 02 00 00 00 49 c1 ee 0a 49 39 ce 4> [ +0.000002] RSP: 0018:ffffbe1f400f8d08 EFLAGS: 00010046 [ +0.000003] RAX: 0000000000000000 RBX: ffff9ed7c0c0f200 RCX: 00000000000000c2 [ +0.000002] RDX: 0000000000000000 RSI: 000000000000001d RDI: 000000000078cfd5 [ +0.000002] RBP: 0000000029d40d60 R08: 00000000a8e83f00 R09: 0000000000000002 [ +0.000002] R10: 00000000006e3ab2 R11: ffff9ed7d4056690 R12: ffff9ed83bd360c0 [ +0.000002] R13: 0000000000000000 R14: 00000000000000c2 R15: 000000000016e360 [ +0.000003] FS: 0000000000000000(0000) GS:ffff9ed83bd00000(0000) knlGS:0000000000000000 [ +0.000002] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ +0.000002] CR2: 00007f9f5a7245d8 CR3: 0000000100bfc000 CR4: 0000000000350ef0 [ +0.000003] Call Trace: [ +0.000003] <IRQ> [ +0.000002] ? place_entity+0x127/0x130 [ +0.000002] ? __warn.cold+0x93/0xf6 [ +0.000004] ? place_entity+0x127/0x130 [ +0.000003] ? report_bug+0xff/0x140 [ +0.000005] ? handle_bug+0x58/0x90 [ +0.000002] ? exc_invalid_op+0x17/0x70 [ +0.000003] ? asm_exc_invalid_op+0x1a/0x20 [ +0.000006] ? place_entity+0x127/0x130 [ +0.000003] ? place_entity+0x99/0x130 [ +0.000004] reweight_entity+0x1af/0x1d0 [ +0.000003] enqueue_task_fair+0x30c/0x5e0 [ +0.000005] enqueue_task+0x35/0x150 [ +0.000004] activate_task+0x3a/0x60 [ +0.000003] sched_balance_rq+0x7c6/0xee0 [ +0.000008] sched_balance_domains+0x25b/0x350 [ +0.000005] handle_softirqs+0xcf/0x280 [ +0.000006] __irq_exit_rcu+0x8d/0xb0 [ +0.000003] sysvec_apic_timer_interrupt+0x71/0x90 [ +0.000003] </IRQ> [ +0.000002] <TASK> [ +0.000002] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ +0.000002] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ +0.000004] Code: 22 d7 e9 b4 01 01 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 0> [ +0.000002] RSP: 0018:ffffbe1f400bbed8 EFLAGS: 00000202 [ +0.000003] RAX: 0000000000000001 RBX: ffff9ed7c033e600 RCX: ffff9ed7c0647830 [ +0.000001] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00000000000017b4 [ +0.000002] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 [ +0.000002] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ +0.000001] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ +0.000006] default_idle+0x9/0x20 [ +0.000003] default_idle_call+0x29/0x100 [ +0.000002] do_idle+0x1fe/0x240 [ +0.000005] cpu_startup_entry+0x29/0x30 [ +0.000003] start_secondary+0x11e/0x140 [ +0.000004] common_startup_64+0x13e/0x141 [ +0.000007] </TASK> [ +0.000001] ---[ end trace 0000000000000000 ]---
Not yet bisected which change causes it.
I am seeing the same on Tegra. I have not looked to see which change this is yet either.
Jon
Seeing this on RISC-V also.
Jan 21 23:51:10 riscv64 kernel: WARNING: CPU: 3 PID: 16 at kernel/sched/fair.c:5250 place_entity+0x108/0x110 Jan 21 23:51:10 riscv64 kernel: Modules linked in: Jan 21 23:51:10 riscv64 kernel: CPU: 3 UID: 0 PID: 16 Comm: rcu_preempt Not tainted 6.12.11-rc1 #2 Jan 21 23:51:10 riscv64 kernel: Hardware name: SiFive HiFive Unmatched A00 (DT) Jan 21 23:51:10 riscv64 kernel: epc : place_entity+0x108/0x110 Jan 21 23:51:10 riscv64 kernel: ra : place_entity+0x9c/0x110 Jan 21 23:51:10 riscv64 kernel: epc : ffffffff8006ed68 ra : ffffffff8006ecfc sp : ffffffc60009bac0 Jan 21 23:51:10 riscv64 kernel: gp : ffffffff81fa6318 tp : ffffffd680323b00 t0 : 0000000000000000 Jan 21 23:51:10 riscv64 kernel: t1 : 0000000000000000 t2 : 0000000000000000 s0 : ffffffc60009bb00 Jan 21 23:51:10 riscv64 kernel: s1 : ffffffd6809f5000 a0 : 000000000053b491 a1 : 0000000000000000 Jan 21 23:51:10 riscv64 kernel: a2 : 0000000000000002 a3 : 0000000000000000 a4 : 0000000000000000 Jan 21 23:51:10 riscv64 kernel: a5 : 0000000000000000 a6 : 0000000000000000 a7 : 0000000000000000 Jan 21 23:51:10 riscv64 kernel: s2 : 0000000031acb37b s3 : 0000000000000000 s4 : 000000000006920d Jan 21 23:51:10 riscv64 kernel: s5 : ffffffd9fedb2a00 s6 : ffffffd9fedb2900 s7 : ffffffd6829cbb00 Jan 21 23:51:10 riscv64 kernel: s8 : 0000000000000000 s9 : 0000000000000001 s10: 0000000000000201 Jan 21 23:51:10 riscv64 kernel: s11: 0000000000000000 t3 : 0000000000000000 t4 : 0000000000000000 Jan 21 23:51:10 riscv64 kernel: t5 : 0000000000000000 t6 : 0000000000000000 Jan 21 23:51:10 riscv64 kernel: status: 0000000200000100 badaddr: 0000000000000002 cause: 0000000000000003 Jan 21 23:51:10 riscv64 kernel: [<ffffffff8006ed68>] place_entity+0x108/0x110 Jan 21 23:51:10 riscv64 kernel: [<ffffffff8006efe2>] reweight_entity+0x182/0x1b0 Jan 21 23:51:10 riscv64 kernel: [<ffffffff8006f0c8>] update_cfs_group+0x78/0xa8 Jan 21 23:51:10 riscv64 kernel: [<ffffffff8006fc4c>] dequeue_entities+0x114/0x3d8 Jan 21 23:51:10 riscv64 kernel: [<ffffffff80070084>] pick_task_fair+0xb4/0x110 Jan 21 23:51:10 riscv64 kernel: [<ffffffff80077a3c>] pick_next_task_fair+0x1c/0x2f0 Jan 21 23:51:10 riscv64 kernel: [<ffffffff80dc5556>] __schedule+0x176/0xc20 Jan 21 23:51:10 riscv64 kernel: [<ffffffff80dc6022>] schedule+0x22/0x148 Jan 21 23:51:10 riscv64 kernel: [<ffffffff80dcc072>] schedule_timeout+0x82/0x178 Jan 21 23:51:10 riscv64 kernel: [<ffffffff800cb996>] rcu_gp_fqs_loop+0x346/0x4e8 Jan 21 23:51:10 riscv64 kernel: [<ffffffff800cea62>] rcu_gp_kthread+0x12a/0x150 Jan 21 23:51:10 riscv64 kernel: [<ffffffff8004db58>] kthread+0xc8/0xe8 Jan 21 23:51:10 riscv64 kernel: [<ffffffff80dceefe>] ret_from_fork+0xe/0x18 Jan 21 23:51:10 riscv64 kernel: ---[ end trace 0000000000000000 ]---
Reverting commit 11d21f2ae4a254aeef84fcf7b6314f5dd045151f "sched/fair: Fix EEVDF entity placement bug causing scheduling lag" removes the warning.
Ah, thanks! I'll go revert that now and push out a -rc2.
greg k-h
Hi Greg
On Wed, Jan 22, 2025 at 2:59 AM Greg Kroah-Hartman gregkh@linuxfoundation.org wrote:
This is the start of the stable review cycle for the 6.12.11 release. There are 122 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Thu, 23 Jan 2025 17:45:02 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.12.11-rc1... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.12.y and the diffstat can be found below.
thanks,
greg k-h
6.12.11-rc1 tested.
Build successfully completed. Boot successfully completed. No dmesg regressions. Video output normal. Sound output normal.
Lenovo ThinkPad X1 Carbon Gen10(Intel i7-1260P(x86_64) arch linux)
[ 0.000000] Linux version 6.12.11-rc1rv (takeshi@ThinkPadX1Gen10J0764) (gcc (GCC) 14.2.1 20240910, GNU ld (GNU Binutils) 2.43.1) #1 SMP PREEMPT_DYNAMIC Wed Jan 22 07:38:39 JST 2025
Thanks
Tested-by: Takeshi Ogasawara takeshi.ogasawara@futuring-girl.com
On 1/21/25 10:50, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 6.12.11 release. There are 122 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Thu, 23 Jan 2025 17:45:02 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.12.11-rc1... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.12.y and the diffstat can be found below.
thanks,
greg k-h
Compiled and booted on my test system. No dmesg regressions.
Tested-by: Shuah Khan skhan@linuxfoundation.org
thanks, -- Shuah
Hello,
On Tue, 21 Jan 2025 18:50:48 +0100 Greg Kroah-Hartman gregkh@linuxfoundation.org wrote:
This is the start of the stable review cycle for the 6.12.11 release. There are 122 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
This rc kernel passes DAMON functionality test[1] on my test machine. Attaching the test results summary below. Please note that I retrieved the kernel from linux-stable-rc tree[2].
Tested-by: SeongJae Park sj@kernel.org
[1] https://github.com/damonitor/damon-tests/tree/next/corr [2] f6b51ed03daa ("Linux 6.12.11-rc1")
Thanks, SJ
[...]
---
ok 9 selftests: damon: damos_tried_regions.py ok 10 selftests: damon: damon_nr_regions.py ok 11 selftests: damon: reclaim.sh ok 12 selftests: damon: lru_sort.sh ok 13 selftests: damon: debugfs_empty_targets.sh ok 14 selftests: damon: debugfs_huge_count_read_write.sh ok 15 selftests: damon: debugfs_duplicate_context_creation.sh ok 16 selftests: damon: debugfs_rm_non_contexts.sh ok 17 selftests: damon: debugfs_target_ids_read_before_terminate_race.sh ok 18 selftests: damon: debugfs_target_ids_pid_leak.sh ok 19 selftests: damon: sysfs_update_removed_scheme_dir.sh ok 20 selftests: damon: sysfs_update_schemes_tried_regions_hang.py ok 1 selftests: damon-tests: kunit.sh ok 2 selftests: damon-tests: huge_count_read_write.sh ok 3 selftests: damon-tests: buffer_overflow.sh ok 4 selftests: damon-tests: rm_contexts.sh ok 5 selftests: damon-tests: record_null_deref.sh ok 6 selftests: damon-tests: dbgfs_target_ids_read_before_terminate_race.sh ok 7 selftests: damon-tests: dbgfs_target_ids_pid_leak.sh ok 8 selftests: damon-tests: damo_tests.sh ok 9 selftests: damon-tests: masim-record.sh ok 10 selftests: damon-tests: build_i386.sh ok 11 selftests: damon-tests: build_arm64.sh # SKIP ok 12 selftests: damon-tests: build_m68k.sh # SKIP ok 13 selftests: damon-tests: build_i386_idle_flag.sh ok 14 selftests: damon-tests: build_i386_highpte.sh ok 15 selftests: damon-tests: build_nomemcg.sh [33m [92mPASS [39m
On Tue, 21 Jan 2025 at 23:28, Greg Kroah-Hartman gregkh@linuxfoundation.org wrote:
This is the start of the stable review cycle for the 6.12.11 release. There are 122 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Thu, 23 Jan 2025 17:45:02 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.12.11-rc1... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.12.y and the diffstat can be found below.
thanks,
greg k-h
Results from Linaro’s test farm. Regressions on arm64, arm, x86_64, and i386.
The following build warn WARNING: CPU: 1 PID: 22 at kernel/sched/fair.c:5250 place_entity (kernel/sched/fair.c:5250 (discriminator 1))
Reported-by: Linux Kernel Functional Testing lkft@linaro.org Boot regression: exception-warning-cpu-pid-at-kernelschedfair-place_entity
Boot log warnings ---------- <4>[ 160.693155] ------------[ cut here ]------------ <4>[ 160.694179] WARNING: CPU: 1 PID: 22 at kernel/sched/fair.c:5250 place_entity (kernel/sched/fair.c:5250 (discriminator 1)) <4>[ 160.695257] Modules linked in: ip_tables x_tables ipv6 <4>[ 160.696471] CPU: 1 UID: 0 PID: 22 Comm: migration/1 Tainted: G D N 6.12.11-rc1 #1 <4>[ 160.697345] Tainted: [D]=DIE, [N]=TEST <4>[ 160.697903] Hardware name: linux,dummy-virt (DT) <4>[ 160.698415] Stopper: migration_cpu_stop+0x0/0x8c8 <- sched_exec (kernel/sched/core.c:5445) <4>[ 160.699330] pstate: 234020c9 (nzCv daIF +PAN -UAO +TCO +DIT -SSBS BTYPE=--) <4>[ 160.700189] pc : place_entity (kernel/sched/fair.c:5250 (discriminator 1)) <4>[ 160.700827] lr : place_entity (kernel/sched/fair.c:292 kernel/sched/fair.c:289 kernel/sched/fair.c:5177) <4>[ 160.701267] sp : ffff8000801e79e0 <4>[ 160.701601] x29: ffff8000801e79e0 x28: fff00000cad1d852 x27: fff00000cad1d8c8 <4>[ 160.702716] x26: 0000000000000000 x25: 1ffe0000195a3b00 x24: 0000000000000000 <4>[ 160.703741] x23: 0000000000000000 x22: 0000000000231608 x21: 0000000972092cd2 <4>[ 160.704817] x20: 0000000000000000 x19: fff00000cad1d800 x18: 1ffff000100f2ec5 <4>[ 160.705954] x17: 0000000000000000 x16: fff00000c03a4d3c x15: 0000000000000000 <4>[ 160.706967] x14: 1ffe00001b532adb x13: 1ffe000019c18922 x12: fffd80001982cc21 <4>[ 160.708052] x11: 1ffe00001982cc20 x10: fffd80001982cc20 x9 : dfff800000000000 <4>[ 160.709043] x8 : fff00000cc166107 x7 : fff00000cad1d810 x6 : fffd80001982cc20 <4>[ 160.710037] x5 : fff00000cc166100 x4 : 1ffe0000195a3b01 x3 : 1ffe00001b535b92 <4>[ 160.711016] x2 : 1ffe00001b535b96 x1 : 000000000000029c x0 : 0000000000000000 <4>[ 160.712071] Call trace: <4>[ 160.712597] place_entity (kernel/sched/fair.c:5250 (discriminator 1)) <4>[ 160.713221] reweight_entity (kernel/sched/fair.c:3813) <4>[ 160.713802] update_cfs_group (kernel/sched/fair.c:3975 (discriminator 1)) <4>[ 160.714277] dequeue_entities (kernel/sched/fair.c:7091) <4>[ 160.714903] dequeue_task_fair (kernel/sched/fair.c:7144 (discriminator 1)) <4>[ 160.716502] move_queued_task.isra.0 (kernel/sched/core.c:2437 (discriminator 1)) <4>[ 160.717432] migration_cpu_stop (kernel/sched/core.c:2481 kernel/sched/core.c:2540) <4>[ 160.718309] cpu_stopper_thread (kernel/stop_machine.c:511) <4>[ 160.718871] smpboot_thread_fn (kernel/smpboot.c:164) <4>[ 160.719699] kthread (kernel/kthread.c:389) <4>[ 160.720382] ret_from_fork (arch/arm64/kernel/entry.S:861) <4>[ 160.721092] ---[ end trace 0000000000000000 ]---
metadata: history: https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.12.y/build/v6.12.... boot log: https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.12.y/build/v6.12....
## Build * kernel: 6.12.11-rc1 * git: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git * git commit: f6b51ed03daaa30e4c3b3969505cc9b1625babca * git describe: v6.12.10-123-gf6b51ed03daa * test details: https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.12.y/build/v6.12....
## Test Regressions (compared to v6.12.9-190-gd056ad259f16)
## Metric Regressions (compared to v6.12.9-190-gd056ad259f16)
## Test Fixes (compared to v6.12.9-190-gd056ad259f16)
## Metric Fixes (compared to v6.12.9-190-gd056ad259f16)
## Test result summary total: 117171, pass: 90748, fail: 8735, skip: 17614, xfail: 74
## Build Summary * arc: 6 total, 5 passed, 1 failed * arm: 143 total, 137 passed, 6 failed * arm64: 58 total, 56 passed, 2 failed * i386: 22 total, 19 passed, 3 failed * mips: 38 total, 33 passed, 5 failed * parisc: 5 total, 3 passed, 2 failed * powerpc: 44 total, 40 passed, 4 failed * riscv: 27 total, 24 passed, 3 failed * s390: 26 total, 22 passed, 4 failed * sh: 6 total, 5 passed, 1 failed * sparc: 5 total, 3 passed, 2 failed * x86_64: 50 total, 49 passed, 1 failed
## Test suites summary * boot * commands * kselftest-arm64 * kselftest-breakpoints * kselftest-capabilities * kselftest-cgroup * kselftest-clone3 * kselftest-core * kselftest-cpu-hotplug * kselftest-cpufreq * kselftest-efivarfs * kselftest-exec * kselftest-filesystems * kselftest-filesystems-binderfs * kselftest-filesystems-epoll * kselftest-firmware * kselftest-fpu * kselftest-ftrace * kselftest-futex * kselftest-gpio * kselftest-intel_pstate * kselftest-ipc * kselftest-kcmp * kselftest-kvm * kselftest-livepatch * kselftest-membarrier * kselftest-memfd * kselftest-mincore * kselftest-mqueue * kselftest-net * kselftest-net-mptcp * kselftest-openat2 * kselftest-ptrace * kselftest-rseq * kselftest-rtc * kselftest-rust * kselftest-seccomp * kselftest-sigaltstack * kselftest-size * kselftest-tc-testing * kselftest-timers * kselftest-tmpfs * kselftest-tpm2 * kselftest-user_events * kselftest-vDSO * kselftest-x86 * kunit * kvm-unit-tests * libgpiod * libhugetlbfs * log-parser-boot * log-parser-build-clang * log-parser-build-gcc * log-parser-test * ltp-capability * ltp-commands * ltp-containers * ltp-controllers * ltp-cpuhotplug * ltp-crypto * ltp-cve * ltp-dio * ltp-fcntl-locktests * ltp-filecaps * ltp-fs * ltp-fs_bind * ltp-fs_perms_simple * ltp-hugetlb * ltp-ipc * ltp-math * ltp-mm * ltp-nptl * ltp-pty * ltp-sched * ltp-smoke * ltp-syscalls * ltp-tracing * perf * rcutorture
-- Linaro LKFT https://lkft.linaro.org
On Wed, Jan 22, 2025 at 03:34:16PM +0530, Naresh Kamboju wrote:
On Tue, 21 Jan 2025 at 23:28, Greg Kroah-Hartman gregkh@linuxfoundation.org wrote:
This is the start of the stable review cycle for the 6.12.11 release. There are 122 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Thu, 23 Jan 2025 17:45:02 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.12.11-rc1... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.12.y and the diffstat can be found below.
thanks,
greg k-h
Results from Linaro’s test farm. Regressions on arm64, arm, x86_64, and i386.
The following build warn WARNING: CPU: 1 PID: 22 at kernel/sched/fair.c:5250 place_entity (kernel/sched/fair.c:5250 (discriminator 1))
Odd, are you seeing the same on .13 ?
On Wed, Jan 22, 2025, at 11:04, Naresh Kamboju wrote:
On Tue, 21 Jan 2025 at 23:28, Greg Kroah-Hartman gregkh@linuxfoundation.org wrote:
0000000000000000 <4>[ 160.712071] Call trace: <4>[ 160.712597] place_entity (kernel/sched/fair.c:5250 (discriminator 1)) <4>[ 160.713221] reweight_entity (kernel/sched/fair.c:3813) <4>[ 160.713802] update_cfs_group (kernel/sched/fair.c:3975 (discriminator 1)) <4>[ 160.714277] dequeue_entities (kernel/sched/fair.c:7091) <4>[ 160.714903] dequeue_task_fair (kernel/sched/fair.c:7144 (discriminator 1)) <4>[ 160.716502] move_queued_task.isra.0 (kernel/sched/core.c:2437 (discriminator 1))
I don't see anything that immediately sticks out as causing this, but I do see five scheduler patches backported in stable-rc on top of v6.12.8, these are the original commits:
66951e4860d3 ("sched/fair: Fix update_cfs_group() vs DELAY_DEQUEUE") 30dd3b13f9de ("sched_ext: keep running prev when prev->scx.slice != 0") a2a3374c47c4 ("sched_ext: idle: Refresh idle masks during idle-to-idle transitions") 68e449d849fd ("sched_ext: switch class when preempted by higher priority scheduler") 6268d5bc1035 ("sched_ext: Replace rq_lock() to raw_spin_rq_lock() in scx_ops_bypass()")
Arnd
On Wed, Jan 22, 2025 at 11:56:13AM +0100, Arnd Bergmann wrote:
On Wed, Jan 22, 2025, at 11:04, Naresh Kamboju wrote:
On Tue, 21 Jan 2025 at 23:28, Greg Kroah-Hartman gregkh@linuxfoundation.org wrote:
0000000000000000 <4>[ 160.712071] Call trace: <4>[ 160.712597] place_entity (kernel/sched/fair.c:5250 (discriminator 1)) <4>[ 160.713221] reweight_entity (kernel/sched/fair.c:3813) <4>[ 160.713802] update_cfs_group (kernel/sched/fair.c:3975 (discriminator 1)) <4>[ 160.714277] dequeue_entities (kernel/sched/fair.c:7091) <4>[ 160.714903] dequeue_task_fair (kernel/sched/fair.c:7144 (discriminator 1)) <4>[ 160.716502] move_queued_task.isra.0 (kernel/sched/core.c:2437 (discriminator 1))
I don't see anything that immediately sticks out as causing this, but I do see five scheduler patches backported in stable-rc on top of v6.12.8, these are the original commits:
66951e4860d3 ("sched/fair: Fix update_cfs_group() vs DELAY_DEQUEUE")
This one reworks reweight_entity(), but I've been running with that on top of 13-rc6 for a week or so and not seen this.
On 1/22/25 02:59, Peter Zijlstra wrote:
On Wed, Jan 22, 2025 at 11:56:13AM +0100, Arnd Bergmann wrote:
On Wed, Jan 22, 2025, at 11:04, Naresh Kamboju wrote:
On Tue, 21 Jan 2025 at 23:28, Greg Kroah-Hartman gregkh@linuxfoundation.org wrote: 0000000000000000 <4>[ 160.712071] Call trace: <4>[ 160.712597] place_entity (kernel/sched/fair.c:5250 (discriminator 1)) <4>[ 160.713221] reweight_entity (kernel/sched/fair.c:3813) <4>[ 160.713802] update_cfs_group (kernel/sched/fair.c:3975 (discriminator 1)) <4>[ 160.714277] dequeue_entities (kernel/sched/fair.c:7091) <4>[ 160.714903] dequeue_task_fair (kernel/sched/fair.c:7144 (discriminator 1)) <4>[ 160.716502] move_queued_task.isra.0 (kernel/sched/core.c:2437 (discriminator 1))
I don't see anything that immediately sticks out as causing this, but I do see five scheduler patches backported in stable-rc on top of v6.12.8, these are the original commits:
66951e4860d3 ("sched/fair: Fix update_cfs_group() vs DELAY_DEQUEUE")
This one reworks reweight_entity(), but I've been running with that on top of 13-rc6 for a week or so and not seen this.
The offending commit is 6d71a9c6160479899ee744d2c6d6602a191deb1f "sched/fair: Fix EEVDF entity placement bug causing scheduling lag"
It works fine on 6.13, at least on RISC-V (which is the only arch I test).
It's already been reverted and 6.12.11-rc2 has been pushed out.
On Wed, 2025-01-22 at 03:11 -0800, Ron Economos wrote:
On 1/22/25 02:59, Peter Zijlstra wrote:
On Wed, Jan 22, 2025 at 11:56:13AM +0100, Arnd Bergmann wrote:
On Wed, Jan 22, 2025, at 11:04, Naresh Kamboju wrote:
On Tue, 21 Jan 2025 at 23:28, Greg Kroah-Hartman gregkh@linuxfoundation.org wrote: 0000000000000000 <4>[ 160.712071] Call trace: <4>[ 160.712597] place_entity (kernel/sched/fair.c:5250 (discriminator 1)) <4>[ 160.713221] reweight_entity (kernel/sched/fair.c:3813) <4>[ 160.713802] update_cfs_group (kernel/sched/fair.c:3975 (discriminator 1)) <4>[ 160.714277] dequeue_entities (kernel/sched/fair.c:7091) <4>[ 160.714903] dequeue_task_fair (kernel/sched/fair.c:7144 (discriminator 1)) <4>[ 160.716502] move_queued_task.isra.0 (kernel/sched/core.c:2437 (discriminator 1))
I don't see anything that immediately sticks out as causing this, but I do see five scheduler patches backported in stable-rc on top of v6.12.8, these are the original commits:
66951e4860d3 ("sched/fair: Fix update_cfs_group() vs DELAY_DEQUEUE")
This one reworks reweight_entity(), but I've been running with that on top of 13-rc6 for a week or so and not seen this.
The offending commit is 6d71a9c6160479899ee744d2c6d6602a191deb1f "sched/fair: Fix EEVDF entity placement bug causing scheduling lag"
It works fine on 6.13, at least on RISC-V (which is the only arch I test).
Seems 6.13 is gripe free thanks to it containing 4423af84b297.
I stumbled upon a reproducer for my x86_64 desktop box: all I need do is fire up a kvm guest in an enterprise configured host. That inspires libvirt goop to engage group scheduling, splat follows instantly.
Back 4423af84b297 out of 6.13, it starts griping, add it to a 6.12 tree containing 6d71a9c61604, it stops doing so.
It's already been reverted and 6.12.11-rc2 has been pushed out.
So stable should perhaps take 4423af84b297 along with 6d71a9c61604?
-Mike
On Tue, Jan 28, 2025 at 12:46:07PM +0100, Mike Galbraith wrote:
Seems 6.13 is gripe free thanks to it containing 4423af84b297.
I stumbled upon a reproducer for my x86_64 desktop box: all I need do is fire up a kvm guest in an enterprise configured host. That inspires libvirt goop to engage group scheduling, splat follows instantly.
Back 4423af84b297 out of 6.13, it starts griping, add it to a 6.12 tree containing 6d71a9c61604, it stops doing so.
Ooh, does something like the below (+- reverse-renames as applicable to .12) also help?
--- diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index b67222dea491..8766f7d3d297 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -3781,6 +3781,7 @@ static void reweight_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, update_entity_lag(cfs_rq, se); se->deadline -= se->vruntime; se->rel_deadline = 1; + cfs_rq->nr_queued--; if (!curr) __dequeue_entity(cfs_rq, se); update_load_sub(&cfs_rq->load, se->load.weight); @@ -3811,6 +3812,7 @@ static void reweight_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, place_entity(cfs_rq, se, 0); if (!curr) __enqueue_entity(cfs_rq, se); + cfs_rq->nr_queued++;
/* * The entity's vruntime has been adjusted, so let's check
On Tue, 2025-01-28 at 15:39 +0100, Peter Zijlstra wrote:
On Tue, Jan 28, 2025 at 12:46:07PM +0100, Mike Galbraith wrote:
Seems 6.13 is gripe free thanks to it containing 4423af84b297.
I stumbled upon a reproducer for my x86_64 desktop box: all I need do is fire up a kvm guest in an enterprise configured host. That inspires libvirt goop to engage group scheduling, splat follows instantly.
Back 4423af84b297 out of 6.13, it starts griping, add it to a 6.12 tree containing 6d71a9c61604, it stops doing so.
Ooh, does something like the below (+- reverse-renames as applicable to .12) also help?
Yup, seems to, 6.13 sans 4423af84b297 stopped griping.
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index b67222dea491..8766f7d3d297 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -3781,6 +3781,7 @@ static void reweight_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, update_entity_lag(cfs_rq, se); se->deadline -= se->vruntime; se->rel_deadline = 1; + cfs_rq->nr_queued--; if (!curr) __dequeue_entity(cfs_rq, se); update_load_sub(&cfs_rq->load, se->load.weight); @@ -3811,6 +3812,7 @@ static void reweight_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, place_entity(cfs_rq, se, 0); if (!curr) __enqueue_entity(cfs_rq, se); + cfs_rq->nr_queued++; /* * The entity's vruntime has been adjusted, so let's check
Hi Greg,
On 21/01/25 23:20, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 6.12.11 release. There are 122 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Thu, 23 Jan 2025 17:45:02 +0000. Anything received after that time might be too late.
No problems seen on x86_64 and aarch64 with our testing.
Tested-by: Harshit Mogalapalli harshit.m.mogalapalli@oracle.com
Thanks, Harshit
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.12.11-rc1... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.12.y and the diffstat can be found below.
-
Arnd Bergmann -
Florian Fainelli -
Greg Kroah-Hartman -
Harshit Mogalapalli -
Jon Hunter -
Mike Galbraith -
Naresh Kamboju -
Peter Schneider -
Peter Zijlstra -
Ron Economos -
Salvatore Bonaccorso -
SeongJae Park -
Shuah Khan -
Takeshi Ogasawara