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Date: Thu, 25 Apr 2024 16:13:18 +0800
From: kernel test robot <oliver.sang@intel.com>
To: Stas Sergeev <stsp2@yandex.ru>
CC: <oe-lkp@lists.linux.dev>, <lkp@intel.com>, Eric Biederman
	<ebiederm@xmission.com>, Alexander Viro <viro@zeniv.linux.org.uk>, "Christian
 Brauner" <brauner@kernel.org>, Jan Kara <jack@suse.cz>, Andy Lutomirski
	<luto@kernel.org>, David Laight <David.Laight@aculab.com>,
	<linux-fsdevel@vger.kernel.org>, <linux-kernel@vger.kernel.org>, Stas Sergeev
	<stsp2@yandex.ru>, Stefan Metzmacher <metze@samba.org>, Jeff Layton
	<jlayton@kernel.org>, Chuck Lever <chuck.lever@oracle.com>, Alexander Aring
	<alex.aring@gmail.com>, <linux-api@vger.kernel.org>, Paolo Bonzini
	<pbonzini@redhat.com>, Christian =?iso-8859-1?Q?G=F6ttsche?=
	<cgzones@googlemail.com>, <oliver.sang@intel.com>
Subject: Re: [PATCH 1/2] fs: reorganize path_openat()
Message-ID: <202404251525.39b4af4e-lkp@intel.com>
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Hello,

kernel test robot noticed "BUG:sleeping_function_called_from_invalid_context_at_include/linux/sched/mm.h" on:

commit: 831d3c6cc6f05873e33f4aaebafbb9c27618ea0b ("[PATCH 1/2] fs: reorganize path_openat()")
url: https://github.com/intel-lab-lkp/linux/commits/Stas-Sergeev/fs-reorganize-path_openat/20240424-185527
base: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git 9d1ddab261f3e2af7c384dc02238784ce0cf9f98
patch link: https://lore.kernel.org/all/20240424105248.189032-2-stsp2@yandex.ru/
patch subject: [PATCH 1/2] fs: reorganize path_openat()

in testcase: boot

compiler: clang-17
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G

(please refer to attached dmesg/kmsg for entire log/backtrace)


+-------------------------------------------------------------------------------+------------+------------+
|                                                                               | 9d1ddab261 | 831d3c6cc6 |
+-------------------------------------------------------------------------------+------------+------------+
| boot_successes                                                                | 6          | 0          |
| boot_failures                                                                 | 0          | 6          |
| BUG:sleeping_function_called_from_invalid_context_at_include/linux/sched/mm.h | 0          | 6          |
+-------------------------------------------------------------------------------+------------+------------+


If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202404251525.39b4af4e-lkp@intel.com


[    0.591465][   T33] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:315
[    0.592508][   T33] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 33, name: kworker/u8:2
[    0.593515][   T33] preempt_count: 0, expected: 0
[    0.594071][   T33] RCU nest depth: 1, expected: 0
[    0.594633][   T33] CPU: 0 PID: 33 Comm: kworker/u8:2 Not tainted 6.9.0-rc5-00037-g831d3c6cc6f0 #1
[    0.595637][   T33] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[    0.596216][   T33] Workqueue: async async_run_entry_fn
[    0.596216][   T33] Call Trace:
[    0.596216][   T33]  <TASK>
[ 0.596216][ T33] dump_stack_lvl (lib/dump_stack.c:116) 
[ 0.596216][ T33] __might_resched (kernel/sched/core.c:10198) 
[ 0.596216][ T33] kmem_cache_alloc (include/linux/kernel.h:73 include/linux/sched/mm.h:315 mm/slub.c:3746 mm/slub.c:3827 mm/slub.c:3852) 
[ 0.596216][ T33] alloc_empty_file (fs/file_table.c:203) 
[ 0.596216][ T33] path_openat (fs/namei.c:3796) 
[ 0.596216][ T33] do_filp_open (fs/namei.c:3833) 
[ 0.596216][ T33] file_open_name (fs/open.c:1352) 
[ 0.596216][ T33] filp_open (fs/open.c:1371) 
[ 0.596216][ T33] do_name (init/initramfs.c:373) 
[ 0.596216][ T33] flush_buffer (init/initramfs.c:452 init/initramfs.c:464) 
[ 0.596216][ T33] ? __pfx_flush_buffer (init/initramfs.c:458) 
[ 0.596216][ T33] __gunzip (lib/decompress_inflate.c:161) 
[ 0.596216][ T33] ? __pfx_nofill (lib/decompress_inflate.c:37) 
[ 0.596216][ T33] unpack_to_rootfs (init/initramfs.c:520) 
[ 0.596216][ T33] ? __pfx_error (init/initramfs.c:59) 
[ 0.596216][ T33] do_populate_rootfs (init/initramfs.c:714) 
[ 0.596216][ T33] async_run_entry_fn (kernel/async.c:136) 
[ 0.596216][ T33] process_scheduled_works (kernel/workqueue.c:3259) 
[ 0.596216][ T33] worker_thread (include/linux/list.h:373 kernel/workqueue.c:955 kernel/workqueue.c:3417) 
[ 0.596216][ T33] ? __pfx_worker_thread (kernel/workqueue.c:3362) 
[ 0.596216][ T33] kthread (kernel/kthread.c:390) 
[ 0.596216][ T33] ? __pfx_kthread (kernel/kthread.c:341) 
[ 0.596216][ T33] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 0.596216][ T33] ? __pfx_kthread (kernel/kthread.c:341) 
[ 0.596216][ T33] ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
[    0.596216][   T33]  </TASK>
[    1.603321][   T33] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:315
[    1.604448][   T33] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 33, name: kworker/u8:2
[    1.605466][   T33] preempt_count: 0, expected: 0
[    1.606028][   T33] RCU nest depth: 1, expected: 0
[    1.606599][   T33] CPU: 0 PID: 33 Comm: kworker/u8:2 Tainted: G        W          6.9.0-rc5-00037-g831d3c6cc6f0 #1
[    1.607761][   T33] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[    1.608136][   T33] Workqueue: async async_run_entry_fn
[    1.608136][   T33] Call Trace:
[    1.608136][   T33]  <TASK>
[ 1.608136][ T33] dump_stack_lvl (lib/dump_stack.c:116) 
[ 1.608136][ T33] __might_resched (kernel/sched/core.c:10198) 
[ 1.608136][ T33] kmem_cache_alloc (include/linux/kernel.h:73 include/linux/sched/mm.h:315 mm/slub.c:3746 mm/slub.c:3827 mm/slub.c:3852) 
[ 1.608136][ T33] alloc_empty_file (fs/file_table.c:203) 
[ 1.608136][ T33] path_openat (fs/namei.c:3796) 
[ 1.608136][ T33] do_filp_open (fs/namei.c:3833) 
[ 1.608136][ T33] file_open_name (fs/open.c:1352) 
[ 1.608136][ T33] filp_open (fs/open.c:1371) 
[ 1.608136][ T33] do_name (init/initramfs.c:373) 
[ 1.608136][ T33] flush_buffer (init/initramfs.c:452 init/initramfs.c:464) 
[ 1.608136][ T33] ? __pfx_flush_buffer (init/initramfs.c:458) 
[ 1.608136][ T33] __gunzip (lib/decompress_inflate.c:161) 
[ 1.608136][ T33] ? __pfx_nofill (lib/decompress_inflate.c:37) 
[ 1.608136][ T33] unpack_to_rootfs (init/initramfs.c:520) 
[ 1.608136][ T33] ? __pfx_error (init/initramfs.c:59) 
[ 1.608136][ T33] do_populate_rootfs (init/initramfs.c:714) 
[ 1.608136][ T33] async_run_entry_fn (kernel/async.c:136) 
[ 1.608136][ T33] process_scheduled_works (kernel/workqueue.c:3259) 
[ 1.608136][ T33] worker_thread (include/linux/list.h:373 kernel/workqueue.c:955 kernel/workqueue.c:3417) 
[ 1.608136][ T33] ? __pfx_worker_thread (kernel/workqueue.c:3362) 
[ 1.608136][ T33] kthread (kernel/kthread.c:390) 
[ 1.608136][ T33] ? __pfx_kthread (kernel/kthread.c:341) 
[ 1.608136][ T33] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 1.608136][ T33] ? __pfx_kthread (kernel/kthread.c:341) 
[ 1.608136][ T33] ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
[    1.608136][   T33]  </TASK>
[    2.602317][   T33] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:315
[    2.603414][   T33] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 33, name: kworker/u8:2
[    2.604433][   T33] preempt_count: 0, expected: 0
[    2.604985][   T33] RCU nest depth: 1, expected: 0
[    2.605547][   T33] CPU: 0 PID: 33 Comm: kworker/u8:2 Tainted: G        W          6.9.0-rc5-00037-g831d3c6cc6f0 #1
[    2.606689][   T33] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[    2.607825][   T33] Workqueue: async async_run_entry_fn
[    2.608140][   T33] Call Trace:
[    2.608140][   T33]  <TASK>
[ 2.608140][ T33] dump_stack_lvl (lib/dump_stack.c:116) 
[ 2.608140][ T33] __might_resched (kernel/sched/core.c:10198) 
[ 2.608140][ T33] kmem_cache_alloc (include/linux/kernel.h:73 include/linux/sched/mm.h:315 mm/slub.c:3746 mm/slub.c:3827 mm/slub.c:3852) 
[ 2.608140][ T33] alloc_empty_file (fs/file_table.c:203) 
[ 2.608140][ T33] path_openat (fs/namei.c:3796) 
[ 2.608140][ T33] do_filp_open (fs/namei.c:3833) 
[ 2.608140][ T33] file_open_name (fs/open.c:1352) 
[ 2.608140][ T33] filp_open (fs/open.c:1371) 
[ 2.608140][ T33] do_name (init/initramfs.c:373) 
[ 2.608140][ T33] flush_buffer (init/initramfs.c:452 init/initramfs.c:464) 
[ 2.608140][ T33] ? __pfx_flush_buffer (init/initramfs.c:458) 
[ 2.608140][ T33] __gunzip (lib/decompress_inflate.c:161) 
[ 2.608140][ T33] ? __pfx_nofill (lib/decompress_inflate.c:37) 
[ 2.608140][ T33] unpack_to_rootfs (init/initramfs.c:520) 
[ 2.608140][ T33] ? __pfx_error (init/initramfs.c:59) 
[ 2.608140][ T33] do_populate_rootfs (init/initramfs.c:714) 
[ 2.608140][ T33] async_run_entry_fn (kernel/async.c:136) 
[ 2.608140][ T33] process_scheduled_works (kernel/workqueue.c:3259) 
[ 2.608140][ T33] worker_thread (include/linux/list.h:373 kernel/workqueue.c:955 kernel/workqueue.c:3417) 
[ 2.608140][ T33] ? __pfx_worker_thread (kernel/workqueue.c:3362) 
[ 2.608140][ T33] kthread (kernel/kthread.c:390) 
[ 2.608140][ T33] ? __pfx_kthread (kernel/kthread.c:341) 
[ 2.608140][ T33] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 2.608140][ T33] ? __pfx_kthread (kernel/kthread.c:341) 
[ 2.608140][ T33] ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
[    2.608140][   T33]  </TASK>
[    3.648001][   T33] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:315
[    3.649103][   T33] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 33, name: kworker/u8:2
[    3.650109][   T33] preempt_count: 0, expected: 0
[    3.650660][   T33] RCU nest depth: 1, expected: 0
[    3.651223][   T33] CPU: 0 PID: 33 Comm: kworker/u8:2 Tainted: G        W          6.9.0-rc5-00037-g831d3c6cc6f0 #1
[    3.651979][   T33] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[    3.651979][   T33] Workqueue: async async_run_entry_fn
[    3.651979][   T33] Call Trace:
[    3.651979][   T33]  <TASK>
[ 3.651979][ T33] dump_stack_lvl (lib/dump_stack.c:116) 
[ 3.651979][ T33] __might_resched (kernel/sched/core.c:10198) 
[ 3.651979][ T33] kmem_cache_alloc (include/linux/kernel.h:73 include/linux/sched/mm.h:315 mm/slub.c:3746 mm/slub.c:3827 mm/slub.c:3852) 
[ 3.651979][ T33] alloc_empty_file (fs/file_table.c:203) 
[ 3.651979][ T33] path_openat (fs/namei.c:3796) 
[ 3.651979][ T33] do_filp_open (fs/namei.c:3833) 
[ 3.651979][ T33] file_open_name (fs/open.c:1352) 
[ 3.651979][ T33] filp_open (fs/open.c:1371) 
[ 3.651979][ T33] do_name (init/initramfs.c:373) 
[ 3.651979][ T33] flush_buffer (init/initramfs.c:452 init/initramfs.c:464) 
[ 3.651979][ T33] ? __pfx_flush_buffer (init/initramfs.c:458) 
[ 3.651979][ T33] __gunzip (lib/decompress_inflate.c:161) 
[ 3.651979][ T33] ? __pfx_nofill (lib/decompress_inflate.c:37) 
[ 3.651979][ T33] unpack_to_rootfs (init/initramfs.c:520) 
[ 3.651979][ T33] ? __pfx_error (init/initramfs.c:59) 
[ 3.651979][ T33] do_populate_rootfs (init/initramfs.c:714) 
[ 3.651979][ T33] async_run_entry_fn (kernel/async.c:136) 
[ 3.651979][ T33] process_scheduled_works (kernel/workqueue.c:3259) 
[ 3.651979][ T33] worker_thread (include/linux/list.h:373 kernel/workqueue.c:955 kernel/workqueue.c:3417) 
[ 3.651979][ T33] ? __pfx_worker_thread (kernel/workqueue.c:3362) 
[ 3.651979][ T33] kthread (kernel/kthread.c:390) 
[ 3.651979][ T33] ? __pfx_kthread (kernel/kthread.c:341) 
[ 3.651979][ T33] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 3.651979][ T33] ? __pfx_kthread (kernel/kthread.c:341) 
[ 3.651979][ T33] ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
[    3.651979][   T33]  </TASK>
[    3.705833][   T33] Freeing initrd memory: 185612K


The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240425/202404251525.39b4af4e-lkp@intel.com


-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki