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SubjectRe: [PATCH 5.19 000/207] 5.19.12-rc1 review
On Mon, 26 Sept 2022 at 16:13, Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> This is the start of the stable review cycle for the 5.19.12 release.
> There are 207 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 Wed, 28 Sep 2022 10:07:26 +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/v5.x/stable-review/patch-5.19.12-rc1.gz
> or in the git tree and branch at:
> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.19.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h

Results from Linaro's test farm.
No regressions on arm, x86_64, and i386.
Following deadlock warning noticed on arm64 with kselftests Kconfigs.


Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>


NOTE:
Following kernel boot warning noticed on arm64 bcm2711-rpi-4-b,
dragonboard-845c and devices with kselftest Kconfigs [1].

[ 51.802754] ======================================================
[ 51.809016] WARNING: possible circular locking dependency detected
[ 51.815280] 5.19.12-rc1 #1 Not tainted
[ 51.819078] ------------------------------------------------------
[ 51.825340] kworker/u9:0/170 is trying to acquire lock:
[ 51.830635] ffff000044f1b048 (&hdev->req_lock){+.+.}-{3:3}, at:
scan_update_work+0x2c/0x70 [bluetooth]
[ 51.840186]
[ 51.840186] but task is already holding lock:
[ 51.846095] ffff80000c563dd0
((work_completion)(&hdev->scan_update)){+.+.}-{0:0}, at:
process_one_work+0x1e8/0x6d4
[ 51.856610]
[ 51.856610] which lock already depends on the new lock.
[ 51.856610]
[ 51.864898]
[ 51.864898] the existing dependency chain (in reverse order) is:
[ 51.872482]
[ 51.872482] -> #1 ((work_completion)(&hdev->scan_update)){+.+.}-{0:0}:
[ 51.880603] lock_acquire+0x84/0xa0
[ 51.884668] __flush_work+0x88/0x510
[ 51.888820] __cancel_work_timer+0x150/0x1d0
[ 51.893678] cancel_work_sync+0x28/0x40
[ 51.898094] hci_request_cancel_all+0x38/0x110 [bluetooth]
[ 51.904265] hci_dev_close_sync+0x3c/0x620 [bluetooth]
[ 51.910071] hci_dev_do_close+0x38/0x80 [bluetooth]
[ 51.915600] hci_power_off+0x2c/0x70 [bluetooth]
[ 51.920870] process_one_work+0x280/0x6d4
[ 51.925472] worker_thread+0x7c/0x430
[ 51.929711] kthread+0x108/0x114
[ 51.933509] ret_from_fork+0x10/0x20
[ 51.937660]
[ 51.937660] -> #0 (&hdev->req_lock){+.+.}-{3:3}:
[ 51.943843] __lock_acquire+0x12d8/0x205c
[ 51.948434] lock_acquire.part.0+0xe4/0x22c
[ 51.953201] lock_acquire+0x84/0xa0
[ 51.957261] __mutex_lock+0x9c/0x410
[ 51.961413] mutex_lock_nested+0x64/0xa0
[ 51.965914] scan_update_work+0x2c/0x70 [bluetooth]
[ 51.971477] process_one_work+0x280/0x6d4
[ 51.976074] worker_thread+0x7c/0x430
[ 51.980313] kthread+0x108/0x114
[ 51.984110] ret_from_fork+0x10/0x20
[ 51.988261]
[ 51.988261] other info that might help us debug this:
[ 51.988261]
[ 51.996373] Possible unsafe locking scenario:
[ 51.996373]
[ 52.002370] CPU0 CPU1
[ 52.006956] ---- ----
[ 52.011543] lock((work_completion)(&hdev->scan_update));
[ 52.017103] lock(&hdev->req_lock);
[ 52.023280]
lock((work_completion)(&hdev->scan_update));
[ 52.031395] lock(&hdev->req_lock);
[ 52.035015]
[ 52.035015] *** DEADLOCK ***
[ 52.035015]
[ 52.041013] 2 locks held by kworker/u9:0/170:
[ 52.045425] #0: ffff000048b8d938
((wq_completion)hci0){+.+.}-{0:0}, at: process_one_work+0x1e8/0x6d4
[ 52.054788] #1: ffff80000c563dd0
((work_completion)(&hdev->scan_update)){+.+.}-{0:0}, at:
process_one_work+0x1e8/0x6d4
[ 52.065736]
[ 52.065736] stack backtrace:
[ 52.070149] CPU: 1 PID: 170 Comm: kworker/u9:0 Not tainted 5.19.12-rc1 #1
[ 52.077031] Hardware name: Raspberry Pi 4 Model B (DT)
[ 52.082237] Workqueue: hci0 scan_update_work [bluetooth]
[ 52.087725] Call trace:
[ 52.090197] dump_backtrace+0xbc/0x130
[ 52.093997] show_stack+0x30/0x70
[ 52.097352] dump_stack_lvl+0x8c/0xb8
[ 52.101062] dump_stack+0x18/0x34
[ 52.104416] print_circular_bug+0x1f8/0x200
[ 52.108655] check_noncircular+0x12c/0x140
[ 52.112804] __lock_acquire+0x12d8/0x205c
[ 52.116864] lock_acquire.part.0+0xe4/0x22c
[ 52.121101] lock_acquire+0x84/0xa0
[ 52.124633] __mutex_lock+0x9c/0x410
[ 52.128255] mutex_lock_nested+0x64/0xa0
[ 52.132228] scan_update_work+0x2c/0x70 [bluetooth]
[ 52.137265] process_one_work+0x280/0x6d4
[ 52.141330] worker_thread+0x7c/0x430
[ 52.145039] kthread+0x108/0x114
[ 52.148308] ret_from_fork+0x10/0x20


[1] https://builds.tuxbuild.com/2FJZaTWmWVmCtAL2pw1Fvo1uWXw/config
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-5.19.y/build/v5.19.11-208-gddfc03723522/testrun/12111785/suite/log-parser-boot/tests/


## Build
* kernel: 5.19.12-rc1
* git: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc
* git branch: linux-5.19.y
* git commit: ddfc03723522344950fd8eddeec14bd1facf0ba5
* git describe: v5.19.11-208-gddfc03723522
* test details:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-5.19.y/build/v5.19.11-208-gddfc03723522

## No test Regressions (compared to v5.19.11)

## No metric Regressions (compared to v5.19.11)

## No test Fixes (compared to v5.19.11)

## No metric Fixes (compared to v5.19.11)

## Test result summary
total: 117926, pass: 103539, fail: 1113, skip: 13021, xfail: 253

## Build Summary
* arc: 10 total, 10 passed, 0 failed
* arm: 333 total, 333 passed, 0 failed
* arm64: 65 total, 63 passed, 2 failed
* i386: 55 total, 53 passed, 2 failed
* mips: 56 total, 56 passed, 0 failed
* parisc: 12 total, 12 passed, 0 failed
* powerpc: 69 total, 63 passed, 6 failed
* riscv: 27 total, 22 passed, 5 failed
* s390: 21 total, 21 passed, 0 failed
* sh: 24 total, 24 passed, 0 failed
* sparc: 12 total, 12 passed, 0 failed
* x86_64: 58 total, 56 passed, 2 failed

## Test suites summary
* fwts
* igt-gpu-tools
* kselftest-android
* kselftest-arm64
* kselftest-arm64/arm64.btitest.bti_c_func
* kselftest-arm64/arm64.btitest.bti_j_func
* kselftest-arm64/arm64.btitest.bti_jc_func
* kselftest-arm64/arm64.btitest.bti_none_func
* kselftest-arm64/arm64.btitest.nohint_func
* kselftest-arm64/arm64.btitest.paciasp_func
* kselftest-arm64/arm64.nobtitest.bti_c_func
* kselftest-arm64/arm64.nobtitest.bti_j_func
* kselftest-arm64/arm64.nobtitest.bti_jc_func
* kselftest-arm64/arm64.nobtitest.bti_none_func
* kselftest-arm64/arm64.nobtitest.nohint_func
* kselftest-arm64/arm64.nobtitest.paciasp_func
* kselftest-breakpoints
* kselftest-capabilities
* kselftest-cgroup
* kselftest-clone3
* kselftest-core
* kselftest-cpu-hotplug
* kselftest-cpufreq
* kselftest-drivers-dma-buf
* kselftest-efivarfs
* kselftest-filesystems
* kselftest-filesystems-binderfs
* kselftest-firmware
* kselftest-fpu
* kselftest-futex
* kselftest-gpio
* kselftest-intel_pstate
* kselftest-ipc
* kselftest-ir
* kselftest-kcmp
* kselftest-kexec
* kselftest-kvm
* kselftest-lib
* kselftest-livepatch
* kselftest-membarrier
* kselftest-memfd
* kselftest-memory-hotplug
* kselftest-mincore
* kselftest-mount
* kselftest-mqueue
* kselftest-net
* kselftest-net-forwarding
* kselftest-netfilter
* kselftest-nsfs
* kselftest-openat2
* kselftest-pid_namespace
* kselftest-pidfd
* kselftest-proc
* kselftest-pstore
* kselftest-ptrace
* kselftest-rseq
* kselftest-rtc
* kselftest-seccomp
* kselftest-sigaltstack
* kselftest-size
* kselftest-splice
* kselftest-static_keys
* kselftest-sync
* kselftest-sysctl
* kselftest-tc-testing
* kselftest-timens
* kselftest-timers
* kselftest-tmpfs
* kselftest-tpm2
* kselftest-user
* kselftest-vm
* kselftest-x86
* kselftest-zram
* kunit
* kvm-unit-tests
* libgpiod
* libhugetlbfs
* log-parser-boot
* log-parser-test
* ltp-cap_bounds
* 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-fsx
* ltp-hugetlb
* ltp-io
* ltp-ipc
* ltp-math
* ltp-mm
* ltp-nptl
* ltp-open-posix-tests
* ltp-pty
* ltp-sched
* ltp-securebits
* ltp-smoke
* ltp-syscalls
* ltp-tracing
* network-basic-tests
* perf
* perf/Zstd-perf.data-compression
* rcutorture
* v4l2-compliance
* vdso

--
Linaro LKFT
https://lkft.linaro.org

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