Message-ID: <CA+G9fYs9R7DwZVkA_MRaqWwrfuuvZ-3wMcYuk3oHA0prN3bKRA@mail.gmail.com>
Date: Sat, 16 Nov 2024 22:51:10 +0530
From: Naresh Kamboju <naresh.kamboju@...aro.org>
To: open list <linux-kernel@...r.kernel.org>, linux-ext4 <linux-ext4@...r.kernel.org>, 
	linux-fsdevel@...r.kernel.org, lkft-triage@...ts.linaro.org, 
	Linux Regressions <regressions@...ts.linux.dev>
Cc: Andreas Dilger <adilger.kernel@...ger.ca>, "Theodore Ts'o" <tytso@....edu>, Jan Kara <jack@...e.cz>, 
	Linus Torvalds <torvalds@...ux-foundation.org>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Sasha Levin <sashal@...nel.org>, 
	Anders Roxell <anders.roxell@...aro.org>, Arnd Bergmann <arnd@...db.de>, 
	Dan Carpenter <dan.carpenter@...aro.org>
Subject: arm64: __kmem_cache_create_args(ext4_groupinfo_4k) failed with error
 -22 - Boot failed

The qemu-arm64, qemu-armv7 and qemu-riscv boot failed on Sasha Linus-next tree
due to ext4 crash. Please find more details below

First seen on commit sha id c12cd257292c0c29463aa305967e64fc31a514d8.
Good: 7ff71d62bdc4828b0917c97eb6caebe5f4c07220
Bad:  d11b462aa01e0ffd5f8cc81bd5d2cfe4e48c8fbd

qemu-arm64:
 * boot/gcc-13-lkftconfig
 * boot/clang-nightly-lkftconfig
 * boot/gcc-13-lkftconfig-perf

qemu-armv7:
 * boot/gcc-13-lkftconfig
 * boot/clang-19-lkftconfig

qemu-riscv64:
 * boot/clang-19-lkftconfig
 * boot/gcc-13-lkftconfig

Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>

Test log:
---------
<4>[    1.961480] __kmem_cache_create_args(ext4_groupinfo_4k) failed
with error -22
<4>[    1.962527] CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.12.0-rc7 #1
<4>[    1.963220] Hardware name: linux,dummy-virt (DT)
<4>[    1.964500] Call trace:
<4>[ 1.964869] dump_backtrace (arch/arm64/kernel/stacktrace.c:321)
<4>[ 1.966166] show_stack (arch/arm64/kernel/stacktrace.c:328)
<4>[ 1.966570] dump_stack_lvl (lib/dump_stack.c:123)
<4>[ 1.966998] dump_stack (lib/dump_stack.c:130)
<4>[ 1.967331] __kmem_cache_create_args (mm/slab_common.c:363)
<4>[ 1.967774] ext4_mb_init (include/linux/slab.h:349
fs/ext4/mballoc.c:3525 fs/ext4/mballoc.c:3614)
<4>[ 1.968194] ext4_fill_super (fs/ext4/super.c:5543 fs/ext4/super.c:5717)
<4>[ 1.968680] get_tree_bdev_flags (fs/super.c:1636)
<4>[ 1.969043] get_tree_bdev (fs/super.c:1660)
<4>[ 1.969370] ext4_get_tree (fs/ext4/super.c:5750)
<4>[ 1.969781] vfs_get_tree (fs/super.c:1814)
<4>[ 1.970174] path_mount (fs/namespace.c:3507 fs/namespace.c:3834)
<4>[ 1.970592] init_mount (fs/init.c:25)
<4>[ 1.970937] do_mount_root (init/do_mounts.c:165)
<4>[ 1.971369] mount_root_generic (init/do_mounts.c:205)
<4>[ 1.971782] mount_root (init/do_mounts.c:410)
<4>[ 1.972175] prepare_namespace (init/do_mounts.c:493)
<4>[ 1.972610] kernel_init_freeable (init/main.c:1593)
<4>[ 1.973030] kernel_init (init/main.c:1473)
<4>[ 1.973385] ret_from_fork (arch/arm64/kernel/entry.S:861)
<0>[    1.974278] EXT4-fs: no memory for groupinfo slab cache
<3>[    1.974889] EXT4-fs (vda): failed to initialize mballoc (-12)
<3>[    1.979727] EXT4-fs (vda): mount failed
<4>[    1.985849] VFS: Cannot open root device "/dev/vda" or
unknown-block(254,0): error -12
<4>[    1.986425] Please append a correct "root=" boot option; here
are the available partitions:
<4>[    1.987344] fe00         2651632 vda
<4>[    1.987471]  driver: virtio_blk
<4>[    1.988006] 1f00          131072 mtdblock0
<4>[    1.988071]  (driver?)
<3>[    1.988693] List of all bdev filesystems:
<3>[    1.989007]  ext3
<3>[    1.989089]  ext2
<3>[    1.989243]  ext4
<3>[    1.990678]  squashfs
<3>[    1.990900]  vfat
<3>[    1.991157]
<0>[    1.991778] Kernel panic - not syncing: VFS: Unable to mount
root fs on unknown-block(254,0)
<4>[    1.993227] CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.12.0-rc7 #1
<4>[    1.994220] Hardware name: linux,dummy-virt (DT)
<4>[    1.994690] Call trace:
<4>[ 1.994943] dump_backtrace (arch/arm64/kernel/stacktrace.c:321)
<4>[ 1.995263] show_stack (arch/arm64/kernel/stacktrace.c:328)
<4>[ 1.995478] dump_stack_lvl (lib/dump_stack.c:124)
<4>[ 1.995802] dump_stack (lib/dump_stack.c:130)
<4>[ 1.996206] panic (kernel/panic.c:354)
<4>[ 1.996603] mount_root_generic (init/do_mounts.c:252)
<4>[ 1.996964] mount_root (init/do_mounts.c:410)
<4>[ 1.998083] prepare_namespace (init/do_mounts.c:493)
<4>[ 1.998533] kernel_init_freeable (init/main.c:1593)
<4>[ 1.998977] kernel_init (init/main.c:1473)
<4>[ 1.999334] ret_from_fork (arch/arm64/kernel/entry.S:861)
<2>[    1.999930] SMP: stopping secondary CPUs
<0>[    2.001613] Kernel Offset: 0x25c315a00000 from 0xffff800080000000
<0>[    2.001973] PHYS_OFFSET: 0x40000000
<0>[    2.003672] CPU features: 0x00,0000000d,062f797c,677e7f3f
<0>[    2.005317] Memory Limit: none
<0>[    2.007534] ---[ end Kernel panic - not syncing: VFS: Unable to
mount root fs on unknown-block(254,0) ]---


Boot log:
---------
- https://qa-reports.linaro.org/lkft/sashal-linus-next/build/v6.11-15193-gd11b462aa01e/testrun/25853423/suite/boot/test/gcc-13-lkftconfig-no-kselftest-frag/log
- https://qa-reports.linaro.org/lkft/sashal-linus-next/build/v6.11-15430-gc12cd257292c/testrun/25848510/suite/boot/test/clang-19-lkftconfig/log

Build image:
-----------
- https://storage.tuxsuite.com/public/linaro/lkft/builds/2owGnu3uAtzDsaiD2mLqcZ5VwHq/

Steps to reproduce:
------------
- https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/tests/2owGobRSnVpIZQtcenWfntoheHJ/reproducer
- https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/tests/2owGobRSnVpIZQtcenWfntoheHJ/tux_plan

metadata:
----
Linux version: 6.12.0-rc7
git repo: https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linus-next.git
git sha: d11b462aa01e0ffd5f8cc81bd5d2cfe4e48c8fbd
kernel config:
https://storage.tuxsuite.com/public/linaro/lkft/builds/2owGnu3uAtzDsaiD2mLqcZ5VwHq/config
build url: https://storage.tuxsuite.com/public/linaro/lkft/builds/2owGnu3uAtzDsaiD2mLqcZ5VwHq/
toolchain: gcc-13 and clang-19
config: gcc-13-lkftconfig
arch: arm64

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

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