INFO: task segctord:6957 blocked for more than 143 seconds.
      Not tainted 6.0.0-syzkaller-09039-ga6afa4199d3d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:segctord        state:D stack:29112 pid: 6957 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5183 [inline]
 __schedule+0x91f/0xdf0 kernel/sched/core.c:6495
 schedule+0xcb/0x190 kernel/sched/core.c:6571
 rwsem_down_write_slowpath+0xf1c/0x1350 kernel/locking/rwsem.c:1182
 __down_write_common kernel/locking/rwsem.c:1297 [inline]
 __down_write kernel/locking/rwsem.c:1306 [inline]
 down_write+0x163/0x170 kernel/locking/rwsem.c:1553
 nilfs_transaction_lock+0x246/0x4b0 fs/nilfs2/segment.c:357
 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2482 [inline]
 nilfs_segctor_thread+0x52a/0x1180 fs/nilfs2/segment.c:2566
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.0.0-syzkaller-09039-ga6afa4199d3d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
 nmi_cpu_backtrace+0x425/0x450 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x169/0x280 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
 watchdog+0xcd5/0xd20 kernel/hung_task.c:369
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 6972 Comm: syz-executor.3 Not tainted 6.0.0-syzkaller-09039-ga6afa4199d3d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:nilfs_palloc_group fs/nilfs2/alloc.c:87 [inline]
RIP: 0010:nilfs_palloc_entry_blkoff fs/nilfs2/alloc.c:170 [inline]
RIP: 0010:nilfs_palloc_get_entry_block+0xd6/0x2e0 fs/nilfs2/alloc.c:319
Code: 4c 89 64 24 28 0f 87 5b 01 00 00 e8 94 8f 3b fe 41 89 dc b8 08 00 00 00 89 d9 48 d3 e0 41 89 c6 48 8b 44 24 08 31 d2 49 f7 f6 <48> 89 c5 41 0f b6 dc bf 20 00 00 00 89 de e8 47 92 3b fe 80 fb 1f
RSP: 0018:ffffc90003a0ef10 EFLAGS: 00000246
RAX: 0000880000000000 RBX: 000000000000000a RCX: 000000000000000a
RDX: 0000000000000014 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffff88802f242c50 R08: ffffffff834b4049 R09: ffffed1005e55741
R10: ffffed1005e55741 R11: 1ffff11005e55740 R12: 000000000000000a
R13: ffff88802f242892 R14: 0000000000002000 R15: 1ffff11005e48512
FS:  00007ff634a8c700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0533bb0000 CR3: 000000002e4d7000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 nilfs_dat_translate+0x8f/0x4d0 fs/nilfs2/dat.c:391
 nilfs_bmap_lookup_at_level+0x1d8/0x350 fs/nilfs2/bmap.c:75
 nilfs_bmap_lookup fs/nilfs2/bmap.h:170 [inline]
 nilfs_mdt_submit_block+0x23d/0x520 fs/nilfs2/mdt.c:142
 nilfs_mdt_read_block+0xa3/0x460 fs/nilfs2/mdt.c:176
 nilfs_mdt_get_block+0x104/0x820 fs/nilfs2/mdt.c:251
 nilfs_palloc_get_block+0x142/0x240 fs/nilfs2/alloc.c:216
 nilfs_palloc_get_bitmap_block fs/nilfs2/alloc.c:284 [inline]
 nilfs_palloc_prepare_alloc_entry+0x76c/0x1000 fs/nilfs2/alloc.c:535
 nilfs_ifile_create_inode+0xd2/0x2f0 fs/nilfs2/ifile.c:64
 nilfs_new_inode+0x1e1/0x8a0 fs/nilfs2/inode.c:346
 nilfs_create+0xdc/0x2d0 fs/nilfs2/namei.c:85
 lookup_open fs/namei.c:3413 [inline]
 open_last_lookups fs/namei.c:3481 [inline]
 path_openat+0x12d0/0x2df0 fs/namei.c:3688
 do_filp_open+0x264/0x4f0 fs/namei.c:3718
 do_sys_openat2+0x124/0x4e0 fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_open fs/open.c:1334 [inline]
 __se_sys_open fs/open.c:1330 [inline]
 __x64_sys_open+0x221/0x270 fs/open.c:1330
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff63388a5a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff634a8c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007ff6339ac120 RCX: 00007ff63388a5a9
RDX: 0000000000000000 RSI: 000000000014da42 RDI: 00000000200000c0
RBP: 00007ff6338e5580 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff5ba8150f R14: 00007ff634a8c300 R15: 0000000000022000
 </TASK>