June 2018 - Linux-stable-mirror

[PATCH V2 1/2] ata: Fix ZBC_OUT command block check

by Damien Le Moal

The block (LBA) specified must not exceed the last addressable LBA, which is dev->nr_sectors - 1. So fix the correct check is "if (block >= dev->n_sectors)" and not "if (block > dev->n_sectords)". Additionally, the asc/ascq to return for an LBA that is not a zone start LBA should be ILLEGAL REQUEST, regardless if the bad LBA is out of range. Reported-by: David Butterfield <david.butterfield(a)wdc.com> Signed-off-by: Damien Le Moal <damien.lemoal(a)wdc.com> Cc: stable(a)vger.kernel.org --- drivers/ata/libata-scsi.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 6a91d04351d9..a5543751f446 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -3805,8 +3805,13 @@ static unsigned int ata_scsi_zbc_out_xlat(struct ata_queued_cmd *qc) */ goto invalid_param_len; } - if (block > dev->n_sectors) - goto out_of_range; + if (block >= dev->n_sectors) { + /* + * Block must be a valid zone ID (a zone start LBA). + */ + fp = 2; + goto invalid_fld; + } all = cdb[14] & 0x1; @@ -3837,10 +3842,6 @@ static unsigned int ata_scsi_zbc_out_xlat(struct ata_queued_cmd *qc) invalid_fld: ata_scsi_set_invalid_field(qc->dev, scmd, fp, 0xff); return 1; - out_of_range: - /* "Logical Block Address out of range" */ - ata_scsi_set_sense(qc->dev, scmd, ILLEGAL_REQUEST, 0x21, 0x00); - return 1; invalid_param_len: /* "Parameter list length error" */ ata_scsi_set_sense(qc->dev, scmd, ILLEGAL_REQUEST, 0x1a, 0x0); -- 2.17.1

7 years

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[PATCH 0/2] ZBC_OUT command translation fixes

by Damien Le Moal

Tejun, These two patches fix problems with the checks of the ZBC_OUT command fields prior to its translation to ZAC MANAGEMENT OUT. The first patch fixes an incorrect out-of-range check and changes the returned asc/ascq to the ZBC defined INVALID FIELD IN CDB instead of (the more natural but incorrect) LBA OUT OF RANGE. The second patch disables the ZBC_OUT command block address check if the ALL bit is set, as defined by the ZBC specifications. Thank you for considering these patches for inclusion in 4.18 fixes (and CC stable). Damien Le Moal (2): ata: Fix ZBC_OUT command block check ata: Fix ZBC_OUT all bit handling drivers/ata/libata-scsi.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) -- 2.17.1

7 years

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Re: make a confirm for [usb: dwc3: gadget: skip Set/Clear Halt when invalid]

by liangshengjun

Hi balbi, Thanks for reponse. Now I fixed this case without check STALL status when clear-Halt request. BDW, I have meet other case: Run dwc3 for uvc function, the uvc video show video overlapping when windows 7 restart camera app. I debug the dwc3 drivers ,found : 1. when camera app close, the dwc3 ep_dequeue is call. Then giveback request with status: -ECONNRESET to uvc function layer. dep->trb_dequeue keep stable 2.when camera app reopen ,the dwc3 ep_queue is call. Then kick a transfer, fetch a new trb to dwc3 core. dep->trb_enqueue increment. 3.when one trb tranfter complete, handle event process function fetch one frb by current dep->trb_dequeue, and uvc function would get one request complete giveback, which have been dequeue. But in fact, current dep->trb_dequeue pointer buffer is "old", because stp1 have been dequeue it. Current dwc3 drivers: the correct enqueue req process is " ep enqueue > fetch a new trb by trb_enqueue > increase trb_enqueue > pack trb to dwc3 core", Right? For dequeue request process, now is " ep dequeue > stop started_list request > giveback request with -ECONNRESET status" Right ? To avoid getting a older request which has been dequeued, I think dequeue process necessary sync the trb_dequeue to trb_enqueue. Right ? Liang Shengjun -----邮件原件----- 发件人: Felipe Balbi [mailto:felipe.balbi@linux.intel.com] 发送时间: 2018年6月25日 15:48 收件人: Alan Stern <stern(a)rowland.harvard.edu> 抄送: liangshengjun <liangshengjun(a)hisilicon.com>; stable(a)vger.kernel.org; linux-usb(a)vger.kernel.org 主题: Re: make a confirm for [usb: dwc3: gadget: skip Set/Clear Halt when invalid] Hi, Alan Stern <stern(a)rowland.harvard.edu> writes: >> that patch is not 100% correct. You can revert it in your tree. I >> added that because of a problem I found when running adb against macOS. >> >> It's actually okay to send Clear Halt at any time, but for some >> reason >> dwc3 was hanging when running adb against macOS. > > Note: According to the USB spec it's okay to send Clear-Halt at any > time. But there are plenty of devices that get upset if they receive > this message when the endpoint isn't actually halted. right. The weird thing here is that dwc3 has never suffered from this until we ran ADB against macOS. That was the only way to get any problems. Without clear halt, though, we have no means for syncing data toggle. -- balbi

7 years

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v4.9.110 build: 0 failures 0 warnings (v4.9.110)

by Build bot for Mark Brown

Tree/Branch: v4.9.110 Git describe: v4.9.110 Commit: c806e08569 Linux 4.9.110 Build Time: 83 min 42 sec Passed: 11 / 11 (100.00 %) Failed: 0 / 11 ( 0.00 %) Errors: 0 Warnings: 0 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): ------------------------------------------------------------------------------- =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allmodconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig x86_64-allmodconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

7 years

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Remove fpu lazy mode deadcode from 4.4.y

by Daniel Sangorrin

Hello Greg, #Forgot to add --compose Following up on our discussion during the review of kernel 4.4.138-stable, I have backported a few patches that remove the remaining FPU lazy mode deadcode from 4.4.y and 4.9.y. To avoid confusion I will send the explanation on separate e-mails: Patches for 4.4.y: [PATCH 1/4] KVM: x86: remove eager_fpu field of struct kvm_vcpu_arch - This is a git cherry-pick of 5a5fbdc0e3f1 ("KVM: x86: remove eager_fpu field of struct kvm_vcpu_arch"). It applies cleanly and is required for the next patch not to cause conflicts on arch/x86/kvm/cpuid.c [PATCH 2/4] x86/fpu: Remove use_eager_fpu() - The main conflict ocurred on fpu/core.c because commit bf15a8cf8d14 ("x86/fpu/xstate: Rename 'xstate_size' to 'fpu_kernel_xstate_size', to distinguish it from 'fpu_user_xstate_size'") is not on 4.4.y. That commit renames xstate_size to fpu_kernel_xstate_size but it also has its conflicts so I decided just to fix the conflict manually/ [PATCH 3/4] x86/fpu: Remove struct fpu::counter - caused one conflict because 4.4.y does not have commit d1898b733619 ("x86/fpu: Add tracepoints to dump FPU state at key points") I fixed it manually. [PATCH 4/4] x86/fpu: Finish excising 'eagerfpu' - caused a small conflict because 'nopku' is not in 4.4.y - sorry my editor might have removed a couple of trailing spaces automatically to Documentation/kernel-paramters.txt - cause one conflict in these files because they didn't exist arch/x86/include/asm/cpufeatures.h arch/x86/mm/pkeys.c tools/arch/x86/include/asm/cpufeatures.h - Instead I removed the X86_FEATURE_EAGER_FPU definition from arch/x86/include/asm/cpufeature.h Best regards, Daniel Sangorrin PS: Used git send-email --to stable(a)vger.kernel.org --cc-cmd="./scripts/get_maintainer.pl --norolestats" 2197a44..HEAD but it doesn't seem to work sorry...humm

7 years

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[GIT PULL 00/19] perf/urgent fixes for 4.18

by Arnaldo Carvalho de Melo

Hi Ingo, Please consider pulling, - Arnaldo Test results at the end of this message, as usual. The following changes since commit 57d6a7938a8fc6cee8420b40ca244220b41721f5: perf/core: Move the inline keyword at the beginning of the function declaration (2018-06-22 11:07:47 +0200) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-urgent-for-mingo-4.18-20180625 for you to fetch changes up to 92ead7ee30c80f8852d28735cbcb9d79bc85f715: perf tools: Fix crash caused by accessing feat_ops[HEADER_LAST_FEATURE] (2018-06-25 11:59:37 -0300) ---------------------------------------------------------------- perf/urgent fixes: perf bench: (Jiri Olsa): . Fix NUMA report output code handling of less than 1s runtimes. perf script: (Ravi Bangoria) . Add missing output fields in a 'perf script -h' hint. . Fix crash because of missing evsel->priv. . Fix crash caused by accessing feat_ops[HEADER_LAST_FEATURE], which is just a end of features header marker. perf stat: (Thomas Richter) . Remove duplicate event counting perf test: . Wire parsing error handling in 'parse events' test (Jiri Olsa) . Fix 'session topology' test on s/390 (Thomas Richter) eBPF: (Yonghong Song) . Fix a clang 7.0 compilation error when building perf linking with libclang intel-pt: (Adrian Hunter) . Fix packet decoding of CYC packets. Copies of kernel files: (Arnaldo Carvalho de Melo) . Synchronize drm/drm.h UAPI . Update x86's syscall_64.tbl, adding support for 'io_pgetevents' and 'rseq' in 'perf trace'. . Update powerpc uapi/asm/unistd.h, adding support for the 'rseq' syscall. . Update if_link.h and bpf.h, no effect on tool features. PowerPC: (Sandipan Das) . Fix crash if callchain is empty. s/390: (Thomas Richter) . Support random socked_id assignment in the perf header. . Support s390 random socket_id assignment in perf.data file. . Make PMU alias definitions taken from sysfs and JSON files comparable by normalizing them wrt spaces and newlines. Signed-off-by: Arnaldo Carvalho de Melo <acme(a)redhat.com> ---------------------------------------------------------------- Adrian Hunter (1): perf intel-pt: Fix packet decoding of CYC packets Arnaldo Carvalho de Melo (5): tools headers uapi: Synchronize drm/drm.h perf tools: Update x86's syscall_64.tbl, adding 'io_pgetevents' and 'rseq' tools include powerpc: Update arch/powerpc/include/uapi/asm/unistd.h copy to get 'rseq' syscall tools include uapi: Update if_link.h to pick IFLA_{BRPORT_ISOLATED,VXLAN_TTL_INHERIT} tools include uapi: Synchronize bpf.h with the kernel Jiri Olsa (3): perf tests: Add event parsing error handling to parse events test perf tests: Add valid callback for parse-events test perf bench: Fix numa report output code Ravi Bangoria (3): perf script: Add missing output fields in a hint perf script: Fix crash because of missing evsel->priv perf tools: Fix crash caused by accessing feat_ops[HEADER_LAST_FEATURE] Sandipan Das (1): perf report powerpc: Fix crash if callchain is empty Thomas Richter (5): perf record: Support s390 random socket_id assignment perf test session topology: Fix test on s390 perf alias: Remove trailing newline when reading sysfs files perf alias: Rebuild alias expression string to make it comparable perf stat: Remove duplicate event counting Yonghong Song (1): perf tools: Fix a clang 7.0 compilation error tools/arch/powerpc/include/uapi/asm/unistd.h | 1 + tools/include/uapi/drm/drm.h | 7 ++ tools/include/uapi/linux/bpf.h | 2 +- tools/include/uapi/linux/if_link.h | 2 + tools/perf/arch/powerpc/util/skip-callchain-idx.c | 2 +- tools/perf/arch/x86/entry/syscalls/syscall_64.tbl | 2 + tools/perf/bench/numa.c | 5 +- tools/perf/builtin-annotate.c | 11 ++- tools/perf/builtin-report.c | 3 +- tools/perf/builtin-script.c | 30 ++++++- tools/perf/tests/parse-events.c | 25 ++++-- tools/perf/tests/topology.c | 1 + tools/perf/util/c++/clang.cpp | 11 ++- tools/perf/util/header.c | 12 ++- .../util/intel-pt-decoder/intel-pt-pkt-decoder.c | 2 +- tools/perf/util/pmu.c | 99 +++++++++++++++++++++- 16 files changed, 194 insertions(+), 21 deletions(-) Test results: The first ones are container (docker) based builds of tools/perf with and without libelf support. Where clang is available, it is also used to build perf with/without libelf, and building with LIBCLANGLLVM=1 (built-in clang) with gcc and clang when clang and its devel libraries are installed. The objtool and samples/bpf/ builds are disabled now that I'm switching from using the sources in a local volume to fetching them from a http server to build it inside the container, to make it easier to build in a container cluster. Those will come back later. Several are cross builds, the ones with -x-ARCH and the android one, and those may not have all the features built, due to lack of multi-arch devel packages, available and being used so far on just a few, like debian:experimental-x-{arm64,mipsel}. The 'perf test' one will perform a variety of tests exercising tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf commands with a variety of command line event specifications to then intercept the sys_perf_event syscall to check that the perf_event_attr fields are set up as expected, among a variety of other unit tests. Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/ with a variety of feature sets, exercising the build with an incomplete set of features as well as with a complete one. It is planned to have it run on each of the containers mentioned above, using some container orchestration infrastructure. Get in contact if interested in helping having this in place. # dm 1 alpine:3.4 : Ok gcc (Alpine 5.3.0) 5.3.0 2 alpine:3.5 : Ok gcc (Alpine 6.2.1) 6.2.1 20160822 3 alpine:3.6 : Ok gcc (Alpine 6.3.0) 6.3.0 4 alpine:3.7 : Ok gcc (Alpine 6.4.0) 6.4.0 5 alpine:edge : Ok gcc (Alpine 6.4.0) 6.4.0 6 amazonlinux:1 : Ok gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-28) 7 amazonlinux:2 : Ok gcc (GCC) 7.3.1 20180303 (Red Hat 7.3.1-5) 8 android-ndk:r12b-arm : Ok arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease) 9 android-ndk:r15c-arm : Ok arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease) 10 centos:5 : Ok gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-55) 11 centos:6 : Ok gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18) 12 centos:7 : Ok gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-28) 13 debian:7 : Ok gcc (Debian 4.7.2-5) 4.7.2 14 debian:8 : Ok gcc (Debian 4.9.2-10+deb8u1) 4.9.2 15 debian:9 : Ok gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516 16 debian:experimental : Ok gcc (Debian 7.3.0-19) 7.3.0 17 debian:experimental-x-arm64 : Ok aarch64-linux-gnu-gcc (Debian 7.3.0-19) 7.3.0 18 debian:experimental-x-mips : Ok mips-linux-gnu-gcc (Debian 7.3.0-19) 7.3.0 19 debian:experimental-x-mips64 : Ok mips64-linux-gnuabi64-gcc (Debian 7.3.0-18) 7.3.0 20 debian:experimental-x-mipsel : Ok mipsel-linux-gnu-gcc (Debian 7.3.0-19) 7.3.0 21 fedora:20 : Ok gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7) 22 fedora:21 : Ok gcc (GCC) 4.9.2 20150212 (Red Hat 4.9.2-6) 23 fedora:22 : Ok gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6) 24 fedora:23 : Ok gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6) <stopped due to a power outage> # git log --oneline -1 92ead7ee30c8 (HEAD -> perf/urgent) perf tools: Fix crash caused by accessing feat_ops[HEADER_LAST_FEATURE] # perf version perf version 4.17.g92ead7 # uname -a Linux jouet 4.17.0-rc5 #21 SMP Mon May 14 15:35:35 -03 2018 x86_64 x86_64 x86_64 GNU/Linux # perf test 1: vmlinux symtab matches kallsyms : Ok 2: Detect openat syscall event : Ok 3: Detect openat syscall event on all cpus : Ok 4: Read samples using the mmap interface : Ok 5: Test data source output : Ok 6: Parse event definition strings : Ok 7: Simple expression parser : Ok 8: PERF_RECORD_* events & perf_sample fields : Ok 9: Parse perf pmu format : Ok 10: DSO data read : Ok 11: DSO data cache : Ok 12: DSO data reopen : Ok 13: Roundtrip evsel->name : Ok 14: Parse sched tracepoints fields : Ok 15: syscalls:sys_enter_openat event fields : Ok 16: Setup struct perf_event_attr : Ok 17: Match and link multiple hists : Ok 18: 'import perf' in python : Ok 19: Breakpoint overflow signal handler : Ok 20: Breakpoint overflow sampling : Ok 21: Breakpoint accounting : Ok 22: Number of exit events of a simple workload : Ok 23: Software clock events period values : Ok 24: Object code reading : Ok 25: Sample parsing : Ok 26: Use a dummy software event to keep tracking : Ok 27: Parse with no sample_id_all bit set : Ok 28: Filter hist entries : Ok 29: Lookup mmap thread : Ok 30: Share thread mg : Ok 31: Sort output of hist entries : Ok 32: Cumulate child hist entries : Ok 33: Track with sched_switch : Ok 34: Filter fds with revents mask in a fdarray : Ok 35: Add fd to a fdarray, making it autogrow : Ok 36: kmod_path__parse : Ok 37: Thread map : Ok 38: LLVM search and compile : 38.1: Basic BPF llvm compile : Ok 38.2: kbuild searching : Ok 38.3: Compile source for BPF prologue generation : Ok 38.4: Compile source for BPF relocation : Ok 39: Session topology : Ok 40: BPF filter : 40.1: Basic BPF filtering : Ok 40.2: BPF pinning : Ok 40.3: BPF prologue generation : Ok 40.4: BPF relocation checker : Ok 41: Synthesize thread map : Ok 42: Remove thread map : Ok 43: Synthesize cpu map : Ok 44: Synthesize stat config : Ok 45: Synthesize stat : Ok 46: Synthesize stat round : Ok 47: Synthesize attr update : Ok 48: Event times : Ok 49: Read backward ring buffer : Ok 50: Print cpu map : Ok 51: Probe SDT events : Ok 52: is_printable_array : Ok 53: Print bitmap : Ok 54: perf hooks : Ok 55: builtin clang support : Skip (not compiled in) 56: unit_number__scnprintf : Ok 57: mem2node : Ok 58: x86 rdpmc : Ok 59: Convert perf time to TSC : Ok 60: DWARF unwind : Ok 61: x86 instruction decoder - new instructions : Ok 62: Use vfs_getname probe to get syscall args filenames : Ok 63: Check open filename arg using perf trace + vfs_getname: Ok 64: probe libc's inet_pton & backtrace it with ping : Ok 65: Add vfs_getname probe to get syscall args filenames : Ok # $ make -C tools/perf build-test make: Entering directory '/home/acme/git/perf/tools/perf' - tarpkg: ./tests/perf-targz-src-pkg . make_install_prefix_O: make install prefix=/tmp/krava make_install_O: make install make_clean_all_O: make clean all make_no_libnuma_O: make NO_LIBNUMA=1 make_perf_o_O: make perf.o make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1 make_no_libelf_O: make NO_LIBELF=1 make_no_demangle_O: make NO_DEMANGLE=1 make_no_libbionic_O: make NO_LIBBIONIC=1 make_with_babeltrace_O: make LIBBABELTRACE=1 make_pure_O: make make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1 make_util_map_o_O: make util/map.o make_util_pmu_bison_o_O: make util/pmu-bison.o make_install_bin_O: make install-bin make_install_prefix_slash_O: make install prefix=/tmp/krava/ make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1 make_doc_O: make doc make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1 make_tags_O: make tags make_static_O: make LDFLAGS=-static make_no_slang_O: make NO_SLANG=1 make_no_libbpf_O: make NO_LIBBPF=1 make_no_libperl_O: make NO_LIBPERL=1 make_debug_O: make DEBUG=1 make_no_libunwind_O: make NO_LIBUNWIND=1 make_no_libaudit_O: make NO_LIBAUDIT=1 make_no_newt_O: make NO_NEWT=1 make_no_libpython_O: make NO_LIBPYTHON=1 make_no_backtrace_O: make NO_BACKTRACE=1 make_help_O: make help make_with_clangllvm_O: make LIBCLANGLLVM=1 make_no_gtk2_O: make NO_GTK2=1 make_no_auxtrace_O: make NO_AUXTRACE=1 OK make: Leaving directory '/home/acme/git/perf/tools/perf' $

7 years

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[PATCH 1/4] KVM: x86: remove eager_fpu field of struct kvm_vcpu_arch

by Daniel Sangorrin

From: Paolo Bonzini <pbonzini(a)redhat.com> It is now equal to use_eager_fpu(), which simply tests a cpufeature bit. Signed-off-by: Paolo Bonzini <pbonzini(a)redhat.com> --- arch/x86/include/asm/kvm_host.h | 1 - arch/x86/kvm/cpuid.c | 3 +-- arch/x86/kvm/x86.c | 2 +- 3 files changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 74fda1a..3a37cdb 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -439,7 +439,6 @@ struct kvm_vcpu_arch { struct kvm_mmu_memory_cache mmu_page_header_cache; struct fpu guest_fpu; - bool eager_fpu; u64 xcr0; u64 guest_supported_xcr0; u32 guest_xstate_size; diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c index 83d6369..7b4ea5e 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -104,8 +104,7 @@ int kvm_update_cpuid(struct kvm_vcpu *vcpu) if (best && (best->eax & (F(XSAVES) | F(XSAVEC)))) best->ebx = xstate_required_size(vcpu->arch.xcr0, true); - vcpu->arch.eager_fpu = use_eager_fpu(); - if (vcpu->arch.eager_fpu) + if (use_eager_fpu()) kvm_x86_ops->fpu_activate(vcpu); /* diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 53d43d2..660d8a0 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -7325,7 +7325,7 @@ void kvm_put_guest_fpu(struct kvm_vcpu *vcpu) * Every 255 times fpu_counter rolls over to 0; a guest that uses * the FPU in bursts will revert to loading it on demand. */ - if (!vcpu->arch.eager_fpu) { + if (!use_eager_fpu()) { if (++vcpu->fpu_counter < 5) kvm_make_request(KVM_REQ_DEACTIVATE_FPU, vcpu); } -- 2.7.4

7 years

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Remove fpu lazy mode deadcode from 4.9.y

by Daniel Sangorrin

Hello Greg, Following up on our discussion during the review of kernel 4.4.138-stable, I have backported a few patches that remove the remaining FPU lazy mode deadcode from 4.4.y and 4.9.y. To avoid confusion I will send the explanation on separate e-mails: Patches for 4.9.y: [PATCH 1/4] x86/fpu: Remove use_eager_fpu() -> I only had to solve a small conflict caused by the fact that commit b22cbe404a9c ("x86/fpu: Fix invalid FPU ptrace state after execve()") had been applied before (it was supposed to come after) [PATCH 2/4] x86/fpu: Remove struct fpu::counter -> This is just a git cherry-pick of 3913cc350757 ("x86/fpu: Remove struct fpu::counter") which applies cleanly on 4.9.y. You can cherry-pick it instead of applying my patch. [PATCH 3/4] Revert "perf: sync up x86/.../cpufeatures.h" -> Sorry to revert your patch ;). This was just for the next patch to apply cleanly. [PATCH 4/4] x86/fpu: Finish excising 'eagerfpu' -> Again you can use a cherry pick of e63650840e8b ("x86/fpu: Finish excising 'eagerfpu'") instead of applying my patch. Tested on x86_64 only with: - ./runltp -f math (all tests pass) - IEEE 754 tests (no regressions seen) Ref: http://www.math.utah.edu/~beebe/software/ieee/ [Note] I could not prepare a x86 32-bit machine to test no387 [Note] If someone knows better about testing the FPU please let me know. Best regards, Daniel Sangorrin PS: Using git send-email --cc-cmd="scripts/get_maintainer.pl" for the first time. Apologies if this is not the right method.

7 years

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v4.14.52 build: 0 failures 0 warnings (v4.14.52)

by Build bot for Mark Brown

Tree/Branch: v4.14.52 Git describe: v4.14.52 Commit: a26899e0ba Linux 4.14.52 Build Time: 98 min 42 sec Passed: 11 / 11 (100.00 %) Failed: 0 / 11 ( 0.00 %) Errors: 0 Warnings: 0 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): ------------------------------------------------------------------------------- =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm64-allmodconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allmodconfig arm-allnoconfig x86_64-allnoconfig arm-multi_v4t_defconfig x86_64-allmodconfig arm64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

7 years

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Linux 4.9.110

by Greg KH

I'm announcing the release of the 4.9.110 kernel. All users of the 4.9 kernel series must upgrade. The updated 4.9.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-4.9.y and can be browsed at the normal kernel.org git web browser: http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary thanks, greg k-h ------------ Documentation/devicetree/bindings/net/dsa/b53.txt | 1 Makefile | 2 - drivers/ata/libata-core.c | 3 - drivers/ata/libata-zpodd.c | 4 +- drivers/atm/zatm.c | 4 +- drivers/base/core.c | 14 +++++++- drivers/cpufreq/cpufreq.c | 2 + drivers/hid/intel-ish-hid/ipc/pci-ish.c | 22 ++++--------- drivers/net/bonding/bond_options.c | 1 drivers/net/dsa/b53/b53_common.c | 13 +++++++ drivers/net/dsa/b53/b53_mdio.c | 5 ++- drivers/net/dsa/b53/b53_priv.h | 1 drivers/net/ethernet/natsemi/sonic.c | 2 - drivers/net/usb/qmi_wwan.c | 1 drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 10 +++--- drivers/platform/x86/asus-wmi.c | 23 +++++++------- drivers/usb/musb/musb_host.c | 5 ++- drivers/usb/musb/musb_host.h | 7 +++- drivers/usb/musb/musb_virthub.c | 25 +++++++++------ drivers/vhost/vhost.c | 3 + drivers/w1/masters/mxc_w1.c | 20 +++++++----- fs/binfmt_misc.c | 12 +++++-- fs/btrfs/ioctl.c | 18 ++++++----- fs/btrfs/scrub.c | 2 - fs/cifs/smb2pdu.c | 1 fs/ext4/indirect.c | 14 ++++++-- fs/ext4/inode.c | 36 +++++++++++----------- fs/ext4/resize.c | 2 - fs/orangefs/namei.c | 7 ++++ net/bridge/netfilter/ebtables.c | 3 + net/ipv4/tcp_input.c | 2 - net/ipv4/tcp_ipv4.c | 4 ++ net/ipv6/route.c | 3 - net/ipv6/tcp_ipv6.c | 4 ++ net/ipv6/xfrm6_policy.c | 2 - net/netfilter/ipvs/ip_vs_ctl.c | 21 +++++++++--- net/sched/act_simple.c | 15 +++------ sound/pci/hda/hda_controller.c | 4 +- sound/pci/hda/patch_conexant.c | 2 + sound/pci/hda/patch_realtek.c | 8 ++++ tools/objtool/.gitignore | 2 - 41 files changed, 211 insertions(+), 119 deletions(-) Bo Chen (1): ALSA: hda - Handle kzalloc() failure in snd_hda_attach_pcm_stream() Colin Ian King (1): libata: zpodd: make arrays cdb static, reduces object code size Damien Thébault (1): net: dsa: b53: Add BCM5389 support Dan Carpenter (1): libata: zpodd: small read overflow in eject_tray() Daniel Glöckner (1): usb: musb: fix remote wakeup racing with suspend Davide Caratti (1): net/sched: act_simple: fix parsing of TCA_DEF_DATA Dennis Wassenberg (2): ALSA: hda: add dock and led support for HP EliteBook 830 G5 ALSA: hda: add dock and led support for HP ProBook 640 G4 Eric Dumazet (2): xfrm6: avoid potential infinite loop in _decode_session6() tcp: do not overshoot window_clamp in tcp_rcv_space_adjust() Even Xu (1): HID: intel_ish-hid: ipc: register more pm callbacks to support hibernation Finn Thain (1): net/sonic: Use dma_mapping_error() Frank van der Linden (1): tcp: verify the checksum of the first data segment in a new connection Greg Kroah-Hartman (2): objtool: update .gitignore file Linux 4.9.110 Hans de Goede (1): libata: Drop SanDisk SD7UB3Q*G1001 NOLPM quirk Hao Wei Tee (1): iwlwifi: pcie: compare with number of IRQs requested for, not number of CPUs Ivan Bornyakov (1): atm: zatm: fix memcmp casting Jan Kara (2): ext4: fix hole length detection in ext4_ind_map_blocks() ext4: fix fencepost error in check for inode count overflow during resize Josh Hill (1): net: qmi_wwan: Add Netgear Aircard 779S João Paulo Rechi Vita (1): platform/x86: asus-wmi: Fix NULL pointer dereference Julian Anastasov (2): ipvs: fix buffer overflow with sync daemon and service ipv6: allow PMTU exceptions to local routes Kailang Yang (1): ALSA: hda/realtek - New codec support for ALC257 Liu Bo (1): Btrfs: make raid6 rebuild retry more Lukas Czerner (1): ext4: update mtime in ext4_punch_hole even if no blocks are released Martin Brandenburg (1): orangefs: set i_size on new symlink Michael S. Tsirkin (1): vhost: fix info leak due to uninitialized memory Omar Sandoval (2): Btrfs: fix clone vs chattr NODATASUM race Btrfs: fix memory and mount leak in btrfs_ioctl_rm_dev_v2() Paolo Abeni (1): netfilter: ebtables: handle string from userspace with care Qu Wenruo (1): btrfs: scrub: Don't use inode pages for device replace Sasha Levin (1): Revert "Btrfs: fix scrub to repair raid6 corruption" Stefan Potyra (1): w1: mxc_w1: Enable clock before calling clk_get_rate() on it Steve French (1): smb3: on reconnect set PreviousSessionId field Tao Wang (1): cpufreq: Fix new policy initialization during limits updates via sysfs Tetsuo Handa (1): driver core: Don't ignore class_dir_create_and_add() failure. Thadeu Lima de Souza Cascardo (1): fs/binfmt_misc.c: do not allow offset overflow Xiangning Yu (1): bonding: re-evaluate force_primary when the primary slave name changes

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Linux-stable-mirror June 2018