INFO: task hung in nilfs_segctor

Kernel	Title	Repro	Cause bisect	Count	Last	Reported	Patched	Status
linux-4.19	INFO: task hung in nilfs_segctor_thread nilfs2	C		41	822d	924d	0/1	upstream: reported C repro on 2022/11/05 03:06
linux-5.15	INFO: task hung in nilfs_segctor_thread (2)			2	290d	369d	0/3	auto-obsoleted due to no activity on 2024/11/07 22:53
upstream	INFO: task hung in nilfs_segctor_thread (3) nilfs			138	276d	301d	0/28	auto-obsoleted due to no activity on 2024/10/22 18:08
upstream	INFO: task hung in nilfs_segctor_thread nilfs	C	error	94	745d	919d	22/28	fixed on 2023/06/08 14:41
linux-5.15	INFO: task hung in nilfs_segctor_thread			3	756d	768d	0/3	auto-obsoleted due to no activity on 2023/08/20 05:29
upstream	INFO: task hung in nilfs_segctor_thread (4) nilfs			1	195d	195d	0/28	auto-obsoleted due to no activity on 2025/01/31 15:40
upstream	INFO: task hung in nilfs_segctor_thread (2) nilfs	C	inconclusive	98	342d	452d	26/28	fixed on 2024/07/09 19:14
linux-6.1	INFO: task hung in nilfs_segctor_thread			40	225d	369d	0/3	auto-obsoleted due to no activity on 2024/12/12 18:46
linux-5.15	INFO: task hung in nilfs_segctor_thread (3)			1	164d	164d	0/3	auto-obsoleted due to no activity on 2025/03/13 18:17

NILFS (loop0): unable to move secondary superblock to block 18446744073709551612 audit: type=1804 audit(1676530624.284:3): pid=7977 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor157" name="/root/file0/bus" dev="loop0" ino=12 res=1 INFO: task segctord:7982 blocked for more than 140 seconds. Not tainted 4.14.305-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. segctord D27400 7982 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2811 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3386 schedule+0x8d/0x1b0 kernel/sched/core.c:3430 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:588 [inline] rwsem_down_write_failed+0x343/0x6d0 kernel/locking/rwsem-xadd.c:617 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:105 __down_write arch/x86/include/asm/rwsem.h:126 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:56 nilfs_transaction_lock+0x1f9/0x860 fs/nilfs2/segment.c:371 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2501 [inline] nilfs_segctor_thread+0x3a2/0xdb0 fs/nilfs2/segment.c:2586 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406 Showing all locks held in the system: 1 lock held by khungtaskd/1534: #0: (tasklist_lock){.+.+}, at: [<ffffffff8702d99c>] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4548 1 lock held by segctord/7982: #0: (&nilfs->ns_segctor_sem){++++}, at: [<ffffffff826ff8f9>] nilfs_transaction_lock+0x1f9/0x860 fs/nilfs2/segment.c:371 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1534 Comm: khungtaskd Not tainted 4.14.305-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 nmi_cpu_backtrace.cold+0x57/0x93 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x13a/0x180 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:140 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:195 [inline] watchdog+0x5b9/0xb40 kernel/hung_task.c:274 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 7977 Comm: syz-executor157 Not tainted 4.14.305-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 task: ffff8880b565c540 task.stack: ffff8880b3040000 RIP: 0010:arch_local_save_flags arch/x86/include/asm/paravirt.h:774 [inline] RIP: 0010:arch_local_irq_save arch/x86/include/asm/paravirt.h:796 [inline] RIP: 0010:lock_release+0xc2/0x870 kernel/locking/lockdep.c:4013 RSP: 0018:ffff8880b30470f0 EFLAGS: 00000086 RAX: 0000000000000086 RBX: 1ffff11016608e21 RCX: 0000000000007feb RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880b565cdc4 RBP: ffff88813fffb758 R08: ffffffff8b9e5ad8 R09: 00000000000e001f R10: 0000000000000000 R11: ffff8880b565c540 R12: ffffffff816a3f10 R13: ffff8880b565c540 R14: 1ffffffff11e13da R15: 0000000000000086 FS: 0000555555cd0300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6594058160 CR3: 00000000af5fb000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: seqcount_lockdep_reader_access include/linux/seqlock.h:82 [inline] read_seqcount_begin include/linux/seqlock.h:164 [inline] read_seqbegin include/linux/seqlock.h:441 [inline] zone_span_seqbegin include/linux/memory_hotplug.h:80 [inline] page_outside_zone_boundaries+0xcf/0x310 mm/page_alloc.c:496 bad_range mm/page_alloc.c:525 [inline] __free_one_page mm/page_alloc.c:828 [inline] free_pcppages_bulk+0x2e0/0x1460 mm/page_alloc.c:1162 free_hot_cold_page+0x90e/0xca0 mm/page_alloc.c:2646 slab_destroy mm/slab.c:1723 [inline] slabs_destroy+0x90/0xd0 mm/slab.c:1739 cache_flusharray mm/slab.c:3483 [inline] ___cache_free+0x213/0x2c0 mm/slab.c:3525 qlink_free mm/kasan/quarantine.c:147 [inline] qlist_free_all+0x79/0x140 mm/kasan/quarantine.c:166 quarantine_reduce+0x185/0x200 mm/kasan/quarantine.c:259 kasan_kmalloc+0xa2/0x160 mm/kasan/kasan.c:536 slab_post_alloc_hook mm/slab.h:442 [inline] slab_alloc mm/slab.c:3390 [inline] kmem_cache_alloc+0x111/0x3c0 mm/slab.c:3550 kmem_cache_zalloc include/linux/slab.h:651 [inline] alloc_buffer_head+0x20/0x110 fs/buffer.c:3429 alloc_page_buffers+0xb3/0x1f0 fs/buffer.c:874 create_empty_buffers+0x2c/0x470 fs/buffer.c:1590 __nilfs_get_page_block fs/nilfs2/page.c:46 [inline] nilfs_grab_buffer+0x1fb/0x420 fs/nilfs2/page.c:70 nilfs_mdt_submit_block.constprop.0+0x8e/0x970 fs/nilfs2/mdt.c:130 nilfs_mdt_read_block+0x7c/0x320 fs/nilfs2/mdt.c:184 nilfs_mdt_get_block+0xc7/0xb90 fs/nilfs2/mdt.c:259 nilfs_sufile_get_segment_usage_block fs/nilfs2/sufile.c:101 [inline] nilfs_sufile_truncate_range fs/nilfs2/sufile.c:691 [inline] nilfs_sufile_resize+0x6b7/0x1060 fs/nilfs2/sufile.c:789 nilfs_resize_fs+0x1c3/0xd20 fs/nilfs2/super.c:434 nilfs_ioctl_resize fs/nilfs2/ioctl.c:1063 [inline] nilfs_ioctl+0x123e/0x1930 fs/nilfs2/ioctl.c:1335 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7fa0d3c07619 RSP: 002b:00007ffdb60d1908 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa0d3c07619 RDX: 0000000020000040 RSI: 0000000040086e8b RDI: 0000000000000006 RBP: 0000000000000000 R08: 00007fa0d3c75ec0 R09: 00007fa0d3c75ec0 R10: 00007fa0d3c75ec0 R11: 0000000000000246 R12: 00007ffdb60d1930 R13: 0000000000000000 R14: 431bde82d7b634db R15: 0000000000000000 Code: 9e f0 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 98 06 00 00 48 83 3d 26 be ae 07 00 0f 84 0e 05 00 00 9c 58 <0f> 1f 44 00 00 48 ba 00 00 00 00 00 fc ff df 48 89 04 24 48 c7

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2023/02/16 07:02	linux-4.14.y	a8ad60f2af58	6be0f1f5	.config	console log	report	syz	C		[disk image] [vmlinux] [kernel image] [mounted in repro]	ci2-linux-4-14	INFO: task hung in nilfs_segctor_thread

Crashes (1):

Assets (help?)