Re: [PATCH 6.1 000/197] 6.1.132-rc2 review
From: Naresh Kamboju
Date: Thu Mar 27 2025 - 13:31:51 EST
On Wed, 26 Mar 2025 at 21:15, Greg Kroah-Hartman
<gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
>
> This is the start of the stable review cycle for the 6.1.132 release.
> There are 197 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 Fri, 28 Mar 2025 15:43:27 +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-6.1.132-rc2.gz
> or in the git tree and branch at:
> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.1.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h
In Addition to previous build regressions,
Regressions on arm and arm64 devices cpu hotplug tests failed and
kernel oops triggered
with gcc-13 and clang-20 the stable-rc 6.1.132-rc2.
First seen on the 6.1.132-rc1
Good: v6.1.131
Bad: Linux 6.1.132-rc1 and Linux 6.1.132-rc2
* Juno-r2, rockpi-4, dragonboard 845c, e850-96,
- selftests: cpu-hotplug: cpu-on-off-test.sh
- ltp-controllers: cpuset_hotplug_test.sh
- selftests: rseq: basic_percpu_ops_test
Regression Analysis:
- New regression? yes
- Reproducibility? Yes
Test regression: arm64 arm cpuhotplug kernel NULL pointer dereference
Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>
## Test log
command: cpuset_hotplug_test.sh
[ 1912.782804] /usr/local/bin/kirk[465]: starting test cpuset_hotplug
(cpuset_hotplug_test.sh)
cpuset_hotplug 1 TINFO: CPUs are numbered continuously starting at 0 (0-5)
cpuset_hotplug 1 TINFO: Nodes are numbered continuously starting at 0 (0)
[ 1917.567011] psci: CPU1 killed (polled 0 ms)
cpuset_hotplug 1 TPASS: Cpuset vs CPU hotplug test succeeded.
[ 1918.804896] Detected VIPT I-cache on CPU1
[ 1918.805388] cacheinfo: Unable to detect cache hierarchy for CPU 1
[ 1918.805957] GICv3: CPU1: found redistributor 1 region 0:0x00000000fef20000
[ 1918.806683] CPU1: Booted secondary processor 0x0000000001 [0x410fd034]
[ 1919.086059] psci: CPU1 killed (polled 0 ms)
[ 1919.120969] Unable to handle kernel NULL pointer dereference at
virtual address 0000000000000000
[ 1919.121807] Mem abort info:
[ 1919.122086] ESR = 0x0000000096000004
[ 1919.122451] EC = 0x25: DABT (current EL), IL = 32 bits
[ 1919.122956] SET = 0, FnV = 0
[ 1919.123262] EA = 0, S1PTW = 0
[ 1919.123574] FSC = 0x04: level 0 translation fault
[ 1919.124038] Data abort info:
[ 1919.124380] ISV = 0, ISS = 0x00000004
[ 1919.124754] CM = 0, WnR = 0
[ 1919.125051] user pgtable: 4k pages, 48-bit VAs, pgdp=000000000a2b8000
[ 1919.125655] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000
[ 1919.126341] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP
[ 1919.126912] Modules linked in: snd_soc_hdmi_codec dw_hdmi_cec
dw_hdmi_i2s_audio brcmfmac rockchipdrm hantro_vpu hci_uart brcmutil
dw_mipi_dsi analogix_dp btqca v4l2_h264 btbcm v4l2_vp9 dw_hdmi
panfrost v4l2_mem2mem cfg80211 cec bluetooth snd_soc_audio_graph_card
videobuf2_v4l2 drm_display_helper gpu_sched snd_soc_simple_card
videobuf2_dma_contig crct10dif_ce snd_soc_spdif_tx
snd_soc_rockchip_i2s snd_soc_simple_card_utils videobuf2_memops
phy_rockchip_pcie rockchip_saradc rtc_rk808 drm_shmem_helper
drm_dma_helper videobuf2_common rfkill industrialio_triggered_buffer
drm_kms_helper pcie_rockchip_host rockchip_thermal coresight_cpu_debug
kfifo_buf fuse drm ip_tables x_tables
[ 1919.132505] CPU: 0 PID: 67249 Comm: kworker/0:0 Not tainted 6.1.132-rc2 #1
[ 1919.133132] Hardware name: Radxa ROCK Pi 4B (DT)
[ 1919.133555] Workqueue: events work_for_cpu_fn
[ 1919.133983] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 1919.134617] pc : memcg_hotplug_cpu_dead
(include/linux/percpu-refcount.h:174
include/linux/percpu-refcount.h:332
include/linux/percpu-refcount.h:351 include/linux/memcontrol.h:795
mm/memcontrol.c:2382)
[ 1919.135076] lr : memcg_hotplug_cpu_dead
(include/linux/percpu-refcount.h:174
include/linux/percpu-refcount.h:332
include/linux/percpu-refcount.h:351 include/linux/memcontrol.h:795
mm/memcontrol.c:2382)
[ 1919.135528] sp : ffff80000e78bc60
[ 1919.135835] x29: ffff80000e78bc60 x28: 0000000000000000 x27: ffff80000a1c81f8
[ 1919.136501] x26: 0000000000000028 x25: ffff0000f7534778 x24: ffff80000a1aeb08
[ 1919.137166] x23: 0000000000000000 x22: ffff80000a16e240 x21: 0000000000000000
[ 1919.137830] x20: ffff8000ed3d5000 x19: 0000000000000000 x18: 00000000a2704302
[ 1919.138495] x17: 0000000000000000 x16: 0000000000000312 x15: 0000040000000000
[ 1919.139159] x14: 0000000000000000 x13: ffff80000e788000 x12: ffff80000e78c000
[ 1919.139823] x11: 0bb2d4910b917800 x10: 0000000000000000 x9 : 0000000000000001
[ 1919.140487] x8 : ffff000013406300 x7 : 00000072b5503510 x6 : 0000000000300000
[ 1919.141151] x5 : 00000000801c0011 x4 : 0000000000000000 x3 : ffff80000e78bca0
[ 1919.141815] x2 : ffff80000e78bbf8 x1 : ffff8000080a11e4 x0 : ffff0000f7543240
[ 1919.142480] Call trace:
[ 1919.142709] memcg_hotplug_cpu_dead
(include/linux/percpu-refcount.h:174
include/linux/percpu-refcount.h:332
include/linux/percpu-refcount.h:351 include/linux/memcontrol.h:795
mm/memcontrol.c:2382)
[ 1919.143133] cpuhp_invoke_callback (kernel/cpu.c:193)
[ 1919.143554] _cpu_down (kernel/cpu.c:0 kernel/cpu.c:724
kernel/cpu.c:1157 kernel/cpu.c:1218)
[ 1919.143882] __cpu_down_maps_locked (kernel/cpu.c:1249)
[ 1919.144291] work_for_cpu_fn (kernel/workqueue.c:5184)
[ 1919.144647] process_one_work (kernel/workqueue.c:2297)
[ 1919.145028] worker_thread (include/linux/list.h:292
kernel/workqueue.c:2352 kernel/workqueue.c:2444)
[ 1919.145386] kthread (kernel/kthread.c:378)
[ 1919.145687] ret_from_fork (arch/arm64/kernel/entry.S:865)
[ 1919.146041] Code: d51b4235 8b160280 97ffec72 97f73691 (f9400269)
All code
========
Code starting with the faulting instruction
===========================================
[ 1919.146592] ---[ end trace 0000000000000000 ]---
## Test log 2
kselftest: Running tests in rseq
TAP version 13
1..9
timeout set to 0
selftests: rseq: basic_test
testing current cpu
basic_test: basic_test.c:30: void test_cpu_pointer(void): Assertion
`sched_getcpu() == i' failed.
Aborted
not ok 1 selftests: rseq: basic_test # exit=134
timeout set to 0
selftests: rseq: basic_percpu_ops_test
Segmentation fault
not ok 2 selftests: rseq: basic_percpu_ops_test # exit=139
The bisection pointing to,
memcg: drain obj stock on cpu hotplug teardown
upsteam commit 9f01b4954490d4ccdbcc2b9be34a9921ceee9cbb upstream.
## Source
* Kernel version: 6.1.132-rc2
* Git tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
* Git sha: f5ad54ef021f6fb63ac97b3dec5efa9cc1a2eb51
* Git describe: v6.1.131-198-gf5ad54ef021f
* Project details:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.1.y/Test/v6.1.131-198-gf5ad54ef021f/
## Test
* Test log: https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.1.y/build/v6.1.131-198-gf5ad54ef021f/testrun/27793089/suite/log-parser-test/test/internal-error-oops-oops-preempt-smp/log
* Test history:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.1.y/build/v6.1.131-198-gf5ad54ef021f/testrun/27793089/suite/log-parser-test/test/internal-error-oops-oops-preempt-smp-01e5a0f146f52056a08c01ad73b44c893f7748e5cd1533e30c989289a90e821b/history/
* Test details:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.1.y/build/v6.1.131-198-gf5ad54ef021f/testrun/27793089/suite/log-parser-test/test/internal-error-oops-oops-preempt-smp/
* Test link: https://storage.tuxsuite.com/public/linaro/lkft/builds/2urSwSZQOGBhePbuN1hwUGDHIT8/
* Kernel config:
https://storage.tuxsuite.com/public/linaro/lkft/builds/2urSwSZQOGBhePbuN1hwUGDHIT8/config
--
Linaro LKFT
https://lkft.linaro.org