Re: [linux-next:master] [block/bdev] 3c20917120: BUG:sleeping_function_called_from_invalid_context_at_mm/util.c

[Oliver Sang <oliver.sang@intel.com>]

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hi, Luis,

On Sun, Mar 23, 2025 at 12:07:27AM -0700, Luis Chamberlain wrote:
> On Sat, Mar 22, 2025 at 06:02:13PM -0700, Luis Chamberlain wrote:
> > On Sat, Mar 22, 2025 at 07:14:40PM -0400, Johannes Weiner wrote:
> > > Hey Luis,
> > > 
> > > This looks like the same issue the bot reported here:
> > > 
> > > https://lore.kernel.org/all/20250321135524.GA1888695@cmpxchg.org/
> > > 
> > > There is a fix for it queued in next-20250318 and later. Could you
> > > please double check with your reproducer against a more recent next?
> > 
> > Confirmed, at least it's been 30 minutes and no crashes now where as
> > before it would crash in 1 minute. I'll let it soak for 2.5 hours in
> > the hopes I can trigger the warning originally reported by this thread.
> > 
> > Even though from code inspection I see how the kernel warning would
> > trigger I just want to force trigger it on a test, and I can't yet.
> 
> Survied 5 hours now. This certainly fixed that crash.
> 
> As for the kernel warning, I can't yet reproduce that, so trying to
> run generic/750 forever and looping
> ./testcases/kernel/syscalls/close_range/close_range01
> and yet nothing.
> 
> Oliver can you reproduce the kernel warning on next-20250321 ?

the issue still exists on
9388ec571cb1ad (tag: next-20250321, linux-next/master) Add linux-next specific files for 20250321

but randomly (reproduced 7 times in 12 runs, then ltp.close_range01 also failed.
on another 5 times, the issue cannot be reproduced then ltp.close_range01 pass)

one dmesg is attached FYI.

kern  :err   : [  215.378500] BUG: sleeping function called from invalid context at mm/util.c:743
kern  :err   : [  215.386652] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 52, name: kcompactd0
kern  :err   : [  215.395438] preempt_count: 1, expected: 0
kern  :err   : [  215.400216] RCU nest depth: 0, expected: 0
kern  :warn  : [  215.405081] CPU: 0 UID: 0 PID: 52 Comm: kcompactd0 Tainted: G S                  6.14.0-rc7-next-20250321 #1 PREEMPT(voluntary) 
kern  :warn  : [  215.405095] Tainted: [S]=CPU_OUT_OF_SPEC
kern  :warn  : [  215.405097] Hardware name: Hewlett-Packard HP Pro 3340 MT/17A1, BIOS 8.07 01/24/2013
kern  :warn  : [  215.405101] Call Trace:
kern  :warn  : [  215.405104]  <TASK>
kern  :warn  : [  215.405107]  dump_stack_lvl+0x4f/0x70
kern  :warn  : [  215.405118]  __might_resched+0x2c6/0x450
kern  :warn  : [  215.405128]  folio_mc_copy+0xca/0x1f0
kern  :warn  : [  215.405137]  ? _raw_spin_lock+0x80/0xe0
kern  :warn  : [  215.405145]  __migrate_folio+0x117/0x2e0
kern  :warn  : [  215.405154]  __buffer_migrate_folio+0x563/0x670
kern  :warn  : [  215.405161]  move_to_new_folio+0xf5/0x410
kern  :warn  : [  215.405168]  migrate_folio_move+0x210/0x770
kern  :warn  : [  215.405173]  ? __pfx_compaction_free+0x10/0x10
kern  :warn  : [  215.405181]  ? __pfx_migrate_folio_move+0x10/0x10
kern  :warn  : [  215.405187]  ? compaction_alloc_noprof+0x441/0x720
kern  :warn  : [  215.405195]  ? __pfx_compaction_alloc+0x10/0x10
kern  :warn  : [  215.405202]  ? __pfx_compaction_free+0x10/0x10
kern  :warn  : [  215.405208]  ? __pfx_compaction_free+0x10/0x10
kern  :warn  : [  215.405213]  ? migrate_folio_unmap+0x329/0x890
kern  :warn  : [  215.405221]  migrate_pages_batch+0xe67/0x1800
kern  :warn  : [  215.405227]  ? __pfx_compaction_free+0x10/0x10
kern  :warn  : [  215.405236]  ? __pfx_migrate_pages_batch+0x10/0x10
kern  :warn  : [  215.405243]  ? pick_next_task_fair+0x304/0xba0
kern  :warn  : [  215.405253]  ? finish_task_switch+0x155/0x750
kern  :warn  : [  215.405260]  ? __switch_to+0x5ba/0x1020
kern  :warn  : [  215.405268]  migrate_pages_sync+0x10b/0x8e0
kern  :warn  : [  215.405275]  ? __pfx_compaction_alloc+0x10/0x10
kern  :warn  : [  215.405281]  ? __pfx_compaction_free+0x10/0x10
kern  :warn  : [  215.405289]  ? __pfx_migrate_pages_sync+0x10/0x10
kern  :warn  : [  215.405295]  ? set_pfnblock_flags_mask+0x178/0x220
kern  :warn  : [  215.405303]  ? __pfx_lru_gen_del_folio+0x10/0x10
kern  :warn  : [  215.405310]  ? __pfx_compaction_alloc+0x10/0x10
kern  :warn  : [  215.405316]  ? __pfx_compaction_free+0x10/0x10
kern  :warn  : [  215.405323]  migrate_pages+0x842/0xe30
kern  :warn  : [  215.405331]  ? __pfx_compaction_alloc+0x10/0x10
kern  :warn  : [  215.405337]  ? __pfx_compaction_free+0x10/0x10
kern  :warn  : [  215.405345]  ? __pfx_migrate_pages+0x10/0x10
kern  :warn  : [  215.405351]  ? __compact_finished+0x91b/0xbd0
kern  :warn  : [  215.405359]  ? isolate_migratepages+0x32d/0xbd0
kern  :warn  : [  215.405367]  compact_zone+0x9df/0x16c0
kern  :warn  : [  215.405377]  ? __pfx_compact_zone+0x10/0x10
kern  :warn  : [  215.405383]  ? _raw_spin_lock_irqsave+0x86/0xe0
kern  :warn  : [  215.405390]  ? __pfx__raw_spin_lock_irqsave+0x10/0x10
kern  :warn  : [  215.405397]  compact_node+0x158/0x250
kern  :warn  : [  215.405405]  ? __pfx_compact_node+0x10/0x10
kern  :warn  : [  215.405416]  ? __pfx_extfrag_for_order+0x10/0x10
kern  :warn  : [  215.405425]  ? __pfx_mutex_unlock+0x10/0x10
kern  :warn  : [  215.405432]  ? finish_wait+0xd1/0x280
kern  :warn  : [  215.405441]  kcompactd+0x5d0/0xa30
kern  :warn  : [  215.405450]  ? __pfx_kcompactd+0x10/0x10
kern  :warn  : [  215.405456]  ? _raw_spin_lock_irqsave+0x86/0xe0
kern  :warn  : [  215.405462]  ? __pfx__raw_spin_lock_irqsave+0x10/0x10
kern  :warn  : [  215.405469]  ? __pfx_autoremove_wake_function+0x10/0x10
kern  :warn  : [  215.405477]  ? __kthread_parkme+0xba/0x1e0
kern  :warn  : [  215.405485]  ? __pfx_kcompactd+0x10/0x10
kern  :warn  : [  215.405492]  kthread+0x3a0/0x770
kern  :warn  : [  215.405498]  ? __pfx_kthread+0x10/0x10
kern  :warn  : [  215.405504]  ? __pfx_kthread+0x10/0x10
kern  :warn  : [  215.405510]  ret_from_fork+0x30/0x70
kern  :warn  : [  215.405516]  ? __pfx_kthread+0x10/0x10
kern  :warn  : [  215.405521]  ret_from_fork_asm+0x1a/0x30
kern  :warn  : [  215.405530]  </TASK>
user  :notice: [  216.962224] Modules Loaded         netconsole btrfs blake2b_generic xor zstd_compress raid6_pq snd_hda_codec_realtek snd_hda_codec_generic snd_hda_scodec_component intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp i915 sd_mod sg kvm_intel intel_gtt ipmi_devintf ipmi_msghandler cec kvm drm_buddy snd_hda_intel snd_intel_dspcfg ttm snd_intel_sdw_acpi ghash_clmulni_intel drm_display_helper snd_hda_codec rapl drm_client_lib intel_cstate snd_hda_core drm_kms_helper ahci snd_hwdep libahci snd_pcm wmi_bmof mei_me video intel_uncore mei lpc_ich libata snd_timer pcspkr snd i2c_i801 i2c_smbus soundcore wmi binfmt_misc loop drm fuse dm_mod ip_tables


> 
>   Luis

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