From: Naresh Kamboju <naresh.kamboju@linaro.org>
To: "open list:KERNEL SELFTEST FRAMEWORK"
<linux-kselftest@vger.kernel.org>,
linux-fsdevel@vger.kernel.org, lkft-triage@lists.linaro.org,
Linux Regressions <regressions@lists.linux.dev>
Cc: Jan Kara <jack@suse.cz>, Christian Brauner <brauner@kernel.org>,
Al Viro <viro@zeniv.linux.org.uk>, Arnd Bergmann <arnd@arndb.de>,
Dan Carpenter <dan.carpenter@linaro.org>,
Anders Roxell <anders.roxell@linaro.org>,
Ben Copeland <benjamin.copeland@linaro.org>
Subject: next-20250924: Internal error: Oops: mnt_ns_release (fs/namespace.c:148) __arm64_sys_listmount (fs/namespace.c:5936)
Date: Fri, 26 Sep 2025 00:00:08 +0530 [thread overview]
Message-ID: <CA+G9fYueO8kP8mXVNmbHkyrFPKpt-onPfeyNXLuLGGjiO1WFfQ@mail.gmail.com> (raw)
While running LTP syscalls tests on Linux next-20250924 tag build
the following kernel oops noticed on arm64 and x86_64 devices.
First seen on next-20250924
Good: next-20250923
Bad: next-2025094
Regression Analysis:
- New regression? yes
- Reproducibility? yes
Test regression: next-20250924: Internal error: Oops: mnt_ns_release
(fs/namespace.c:148) __arm64_sys_listmount (fs/namespace.c:5936)
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
$ git log --oneline next-20250923..next-20250924 -- fs/namespace.c
c54644c3221b6 (next/fs-next) Merge branch 'for-next' of
https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git
1f28cc19559a8 Merge branch 'namespace-6.18' into vfs.all
e2c277f720291 Merge branch 'kernel-6.18.clone3' into vfs.all
b2af83d5b8223 Merge branch 'vfs-6.18.mount' into vfs.all
29ecd1ca48ec2 Merge branch 'vfs-6.18.misc' into vfs.all
d7610cb7454bb ns: simplify ns_common_init() further
59bfb66816809 listmount: don't call path_put() under namespace semaphore
2bc5bfbfd3f27 statmount: don't call path_put() under namespace semaphore
## Test log
[ 41.821877] Internal error: Oops: 0000000096000005 [#1] SMP
[ 41.919038] Modules linked in: cdc_ether usbnet sm3_ce sha3_ce nvme
xhci_pci_renesas nvme_core arm_cspmu_module arm_spe_pmu ipmi_devintf
ipmi_msghandler arm_cmn cppc_cpufreq drm fuse backlight
[ 41.944048] CPU: 14 UID: 0 PID: 6416 Comm: listmount04 Not tainted
6.17.0-rc7-next-20250924 #1 PREEMPT
[ 41.958197] Hardware name: Inspur NF5280R7/Mitchell MB, BIOS
04.04.00004001 2025-02-04 22:23:30 02/04/2025
[ 41.967837] pstate: 63400009 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
[ 41.974958] pc : mnt_ns_release
(arch/arm64/include/asm/atomic_lse.h:62 (discriminator 1)
arch/arm64/include/asm/atomic_lse.h:76 (discriminator 1)
arch/arm64/include/asm/atomic.h:51 (discriminator 1)
include/linux/atomic/atomic-arch-fallback.h:944 (discriminator 1)
include/linux/atomic/atomic-instrumented.h:401 (discriminator 1)
include/linux/refcount.h:389 (discriminator 1)
include/linux/refcount.h:432 (discriminator 1)
include/linux/refcount.h:450 (discriminator 1) fs/namespace.c:148
(discriminator 1))
[ 41.981910] lr : __arm64_sys_listmount (fs/namespace.c:5936)
[ 41.993467] sp : ffff8000ff5afd50
[ 42.000329] x29: ffff8000ff5afd50 x28: fff00001bd947380 x27: 0000000000000000
[ 42.007454] x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000100
[ 42.030726] x23: 0000000000000000 x22: 0000000000000020 x21: ffff8000ff5afdc8
[ 42.038281] x20: 0000aaaabd6a1110 x19: 0000000000000000 x18: 0000000000000000
[ 42.045405] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000
[ 42.052528] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000
[ 42.075541] x11: 0000000000000000 x10: 0000000000000000 x9 : ffffda68dcdbbe30
[ 42.082835] x8 : ffff8000ff5afda0 x7 : fefefefefefefefe x6 : ffffda68df5e9000
[ 42.096212] x5 : fff00001bd947380
[ 42.108978] x4 : fff00001bd947380 x3 : 0000000000000000
[ 42.114449] x2 : 0000000000000000 x1 : 00000000ffffffff x0 : 00000000000000b8
[ 42.134515] Call trace:
[ 42.139725] mnt_ns_release (arch/arm64/include/asm/atomic_lse.h:62
(discriminator 1) arch/arm64/include/asm/atomic_lse.h:76
(discriminator 1) arch/arm64/include/asm/atomic.h:51 (discriminator 1)
include/linux/atomic/atomic-arch-fallback.h:944 (discriminator 1)
include/linux/atomic/atomic-instrumented.h:401 (discriminator 1)
include/linux/refcount.h:389 (discriminator 1)
include/linux/refcount.h:432 (discriminator 1)
include/linux/refcount.h:450 (discriminator 1) fs/namespace.c:148
(discriminator 1)) (P)
[ 42.143811] __arm64_sys_listmount (fs/namespace.c:5936)
[ 42.148327] invoke_syscall.constprop.0
(arch/arm64/include/asm/syscall.h:61 arch/arm64/kernel/syscall.c:54)
[ 42.159193] do_el0_svc (include/linux/thread_info.h:135
(discriminator 2) arch/arm64/kernel/syscall.c:140 (discriminator 2)
arch/arm64/kernel/syscall.c:151 (discriminator 2))
[ 42.163970] el0_svc (arch/arm64/include/asm/irqflags.h:82
(discriminator 1) arch/arm64/include/asm/irqflags.h:123 (discriminator
1) arch/arm64/include/asm/irqflags.h:136 (discriminator 1)
arch/arm64/kernel/entry-common.c:102 (discriminator 1)
arch/arm64/kernel/entry-common.c:745 (discriminator 1))
[ 42.173791] el0t_64_sync_handler (arch/arm64/kernel/entry-common.c:764)
[ 42.185342] el0t_64_sync (arch/arm64/kernel/entry.S:596)
[ 42.189165] Code: aa0003f3 9102e000 d503201f 12800001 (b8610001)
All code
========
0: aa0003f3 mov x19, x0
4: 9102e000 add x0, x0, #0xb8
8: d503201f nop
c: 12800001 mov w1, #0xffffffff // #-1
10:* b8610001 ldaddl w1, w1, [x0] <-- trapping instruction
Code starting with the faulting instruction
===========================================
0: b8610001 ldaddl w1, w1, [x0]
[ 42.211485] ---[ end trace 0000000000000000 ]---
## Source
* Kernel version: 6.17.0-rc7
* Git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next.git
* Git describe: 6.17.0-rc7-next-20250924
* Git commit: b5a4da2c459f79a2c87c867398f1c0c315779781
* Architectures: arm64, x86_64
* Toolchains: gcc-13
* Kconfigs: defconfig+lkftconfig
## Build
* Test log arm64: https://qa-reports.linaro.org/api/testruns/30007634/log_file/
* Test log x86_64: https://qa-reports.linaro.org/api/testruns/30000230/log_file/
* Test details:
https://regressions.linaro.org/lkft/linux-next-master-ampere/next-20250924/log-parser-test/internal-error-oops-oops-smp/
* Build plan: https://tuxapi.tuxsuite.com/v1/groups/ampere/projects/ci/tests/339teV8pAwrsgeSJq9beV5V11U8
* Build link: https://storage.tuxsuite.com/public/ampere/ci/builds/339teBhKZ4DENKbJJNnbWKh5ud1/
* Kernel config:
https://storage.tuxsuite.com/public/ampere/ci/builds/339teBhKZ4DENKbJJNnbWKh5ud1/config
--
Linaro LKFT
next reply other threads:[~2025-09-25 18:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-25 18:30 Naresh Kamboju [this message]
2025-09-26 6:48 ` next-20250924: Internal error: Oops: mnt_ns_release (fs/namespace.c:148) __arm64_sys_listmount (fs/namespace.c:5936) Al Viro
2025-09-29 9:42 ` Christian Brauner
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CA+G9fYueO8kP8mXVNmbHkyrFPKpt-onPfeyNXLuLGGjiO1WFfQ@mail.gmail.com \
--to=naresh.kamboju@linaro.org \
--cc=anders.roxell@linaro.org \
--cc=arnd@arndb.de \
--cc=benjamin.copeland@linaro.org \
--cc=brauner@kernel.org \
--cc=dan.carpenter@linaro.org \
--cc=jack@suse.cz \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=lkft-triage@lists.linaro.org \
--cc=regressions@lists.linux.dev \
--cc=viro@zeniv.linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).