On Tue, Sep 10, 2024 at 12:00:37PM +0530, Naresh Kamboju wrote:
The following kernel warning noticed while running the LTP test case LTP syscalls mlock03 ( mmap03 ) on
- Arm DUT Juno-r2
- Qcomm DUT Dragonboard-410c
running Linux next-20240905, next-20240906 and next-20240909 kernel.
First seen on next-20240905 Good: next-20240904 BAD: next-20240905..next-20240909
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
Warning log:
[ 0.000000] Linux version 6.11.0-rc6-next-20240905 (tuxmake@tuxmake) (aarch64-linux-gnu-gcc (Debian 13.3.0-5) 13.3.0, GNU ld (GNU Binutils for Debian) 2.43) #1 SMP PREEMPT @1725536306 [ 0.000000] KASLR disabled due to lack of seed [ 0.000000] Machine model: ARM Juno development board (r2) .. mlock03.c:58: TINFO: mlock [aaaaddae1000,aaaaddafd000] mlock03.c:62: TINFO: munlock [aaaaddae1000,aaaaddafd000] [ 795.850426] ------------[ cut here ]------------ [ 795.857261] WARNING: CPU: 5 PID: 101577 at arch/arm64/include/asm/pkeys.h:40 do_mmap (arch/arm64/include/asm/pkeys.h:40 (discriminator 1) mm/mmap.c:338 (discriminator 1)) [ 795.868833] Modules linked in: tun overlay btrfs blake2b_generic libcrc32c xor xor_neon raid6_pq zstd_compress panfrost tda998x onboard_usb_dev drm_shmem_helper hdlcd crct10dif_ce cec gpu_sched drm_dma_helper drm_kms_helper fuse drm backlight dm_mod ip_tables x_tables [ 795.895379] CPU: 5 UID: 0 PID: 101577 Comm: mmap03 Not tainted 6.11.0-rc6-next-20240905 #1 [ 795.906430] Hardware name: ARM Juno development board (r2) (DT) [ 795.915135] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 795.924881] pc : do_mmap (arch/arm64/include/asm/pkeys.h:40 (discriminator 1) mm/mmap.c:338 (discriminator 1)) [ 795.931236] lr : vm_mmap_pgoff (mm/util.c:588) [ 795.938113] sp : ffff80008ba0bc90 [ 795.944206] x29: ffff80008ba0bc90 x28: 0000000000000001 x27: ffff0008329cf800 [ 795.954128] x26: ffff0008329cf800 x25: ffff000822140cc0 x24: 0000000000000000 [ 795.964050] x23: ffff80008ba0bd20 x22: 0000000000000004 x21: 0000000000000000 [ 795.973972] x20: 0000000000000001 x19: 0000000000001000 x18: 0000000000000000 [ 795.983895] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 [ 795.993817] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 [ 796.003739] x11: 0000000000000000 x10: 0000000000000000 x9 : ffff80008032e2c4 [ 796.013661] x8 : ffff000827e64c00 x7 : ffff80008ba0bd20 x6 : 0000000000000000 [ 796.023583] x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000004 [ 796.033505] x2 : 0000000000001000 x1 : 0000000000000011 x0 : 000000000000fffa [ 796.043428] Call trace: [ 796.048651] do_mmap (arch/arm64/include/asm/pkeys.h:40 (discriminator 1) mm/mmap.c:338 (discriminator 1)) [ 796.054658] vm_mmap_pgoff (mm/util.c:588) [ 796.061187] ksys_mmap_pgoff (mm/mmap.c:542) [ 796.067980] __arm64_sys_mmap (arch/arm64/kernel/sys.c:21) [ 796.074597] invoke_syscall (arch/arm64/include/asm/current.h:19 arch/arm64/kernel/syscall.c:54) [ 796.081213] el0_svc_common.constprop.0 (include/linux/thread_info.h:127 (discriminator 2) arch/arm64/kernel/syscall.c:140 (discriminator 2)) [ 796.088699] do_el0_svc (arch/arm64/kernel/syscall.c:152) [ 796.094879] el0_svc (arch/arm64/include/asm/irqflags.h:82 (discriminator 1) arch/arm64/include/asm/irqflags.h:123 (discriminator
- arch/arm64/include/asm/irqflags.h:136 (discriminator 1)
arch/arm64/kernel/entry-common.c:165 (discriminator 1) arch/arm64/kernel/entry-common.c:178 (discriminator 1) arch/arm64/kernel/entry-common.c:713 (discriminator 1)) [ 796.100799] el0t_64_sync_handler (arch/arm64/kernel/entry-common.c:731) [ 796.108024] el0t_64_sync (arch/arm64/kernel/entry.S:598) [ 796.114467] ---[ end trace 0000000000000000 ]---
I see what has gone wrong here, it's fortunately harmless. I will send a patch to fix it.
Thanks, Joey
boot Log links,
- https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20240905/tes...
- https://lkft.validation.linaro.org/scheduler/job/7842087#L21916
- https://lkft.validation.linaro.org/scheduler/job/7847924#L23191
Test results history:
metadata:
git describe: next-20240905 git repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next git sha: ad40aff1edffeccc412cde93894196dca7bc739e kernel config: https://storage.tuxsuite.com/public/linaro/lkft/builds/2leMFe4WompPEOUNN7ODx... build url: https://storage.tuxsuite.com/public/linaro/lkft/builds/2leMFe4WompPEOUNN7ODx... toolchain: gcc-13
Steps to reproduce:
- https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/tests/2leMISlsoJq...
- https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/tests/2leMISlsoJq...
-- Linaro LKFT https://lkft.linaro.org