INFO: rcu detected stall in vfs

Kernel	Title	Count	Last	Reported	Patched	Status
upstream	INFO: rcu detected stall in vfs_fallocate ext4	6	973d	1001d	0/26	auto-closed as invalid on 2021/12/01 16:15
linux-4.19	INFO: rcu detected stall in vfs_fallocate	1	650d	650d	0/1	auto-obsoleted due to no activity on 2022/11/19 13:27
upstream	INFO: rcu detected stall in vfs_fallocate (2) ext4	1	843d	843d	0/26	closed as invalid on 2022/02/08 10:00
linux-4.19	BUG: soft lockup in vfs_fallocate	1	1082d	1082d	0/1	auto-closed as invalid on 2021/09/13 17:50

rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P10749/1:b..l rcu: (detected by 0, t=10504 jiffies, g=158461, q=96 ncpus=2) task:syz-executor.4 state:R running task stack:25616 pid:10749 tgid:10741 ppid:8950 flags:0x00004002 Call Trace: <TASK> context_switch kernel/sched/core.c:5376 [inline] __schedule+0xedb/0x5af0 kernel/sched/core.c:6688 preempt_schedule_irq+0x52/0x90 kernel/sched/core.c:7008 irqentry_exit+0x36/0x80 kernel/entry/common.c:432 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:lock_is_held_type+0x104/0x140 kernel/locking/lockdep.c:5829 Code: 00 00 b8 ff ff ff ff 65 0f c1 05 5f 0b 83 75 83 f8 01 75 29 9c 58 f6 c4 02 75 3f 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 45 31 ed eb b9 90 0f 0b RSP: 0018:ffffc9000d436ee0 EFLAGS: 00000292 RAX: 0000000000000046 RBX: ffff88807772c6e0 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff8accbc20 RDI: ffffffff8b2f0e40 RBP: ffff88801ff198f8 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000004 R12: ffff88807772bb80 R13: 0000000000000000 R14: 00000000ffffffff R15: 0000000000000005 lock_is_held include/linux/lockdep.h:288 [inline] xa_entry include/linux/xarray.h:1216 [inline] xas_descend+0x2b6/0x4e0 lib/xarray.c:206 xas_load+0xe0/0x140 lib/xarray.c:244 filemap_get_entry+0x10f/0x460 mm/filemap.c:1806 __filemap_get_folio+0x56/0xaa0 mm/filemap.c:1851 pagecache_get_page+0x2c/0x250 mm/folio-compat.c:99 find_get_page_flags include/linux/pagemap.h:679 [inline] ext4_mb_load_buddy_gfp+0x4d7/0x1350 fs/ext4/mballoc.c:1656 ext4_mb_load_buddy fs/ext4/mballoc.c:1709 [inline] ext4_mb_try_best_found+0xf6/0x620 fs/ext4/mballoc.c:2280 ext4_mb_regular_allocator+0x599/0x4100 fs/ext4/mballoc.c:2929 ext4_mb_new_blocks+0x2666/0x4b10 fs/ext4/mballoc.c:6187 ext4_ext_map_blocks+0x1b4e/0x5ae0 fs/ext4/extents.c:4285 ext4_map_blocks+0x619/0x1770 fs/ext4/inode.c:621 ext4_alloc_file_blocks.isra.0+0x2c4/0xb00 fs/ext4/extents.c:4462 ext4_fallocate+0x4e0/0x3da0 fs/ext4/extents.c:4757 vfs_fallocate+0x46c/0xe50 fs/open.c:324 ioctl_preallocate+0x1a4/0x220 fs/ioctl.c:291 file_ioctl fs/ioctl.c:331 [inline] do_vfs_ioctl+0x15a6/0x1920 fs/ioctl.c:850 __do_sys_ioctl fs/ioctl.c:869 [inline] __se_sys_ioctl fs/ioctl.c:857 [inline] __x64_sys_ioctl+0x112/0x210 fs/ioctl.c:857 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f237b67cae9 RSP: 002b:00007f237c44e0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f237b79c050 RCX: 00007f237b67cae9 RDX: 0000000020000080 RSI: 0000000040305828 RDI: 0000000000000005 RBP: 00007f237b6c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f237b79c050 R15: 00007ffff33ea988 </TASK>

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2023/11/18 23:19	upstream	05aa69b096a0	cb976f63	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-root	INFO: rcu detected stall in vfs_fallocate

Crashes (1):

Assets (help?)