INFO: task jfsCommit:276 blocked for more than 143 seconds.
Not tainted 5.15.176-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jfsCommit state:D stack:27896 pid: 276 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
io_schedule+0x88/0x100 kernel/sched/core.c:8481
__lock_metapage+0x1ec/0x3c0 fs/jfs/jfs_metapage.c:49
lock_metapage fs/jfs/jfs_metapage.c:63 [inline]
__get_metapage+0x495/0x1070 fs/jfs/jfs_metapage.c:640
dbUpdatePMap+0x365/0xf50 fs/jfs/jfs_dmap.c:490
txAllocPMap+0x57b/0x6b0 fs/jfs/jfs_txnmgr.c:2459
txUpdateMap+0x7c8/0x9e0 fs/jfs/jfs_txnmgr.c:2397
txLazyCommit fs/jfs/jfs_txnmgr.c:2698 [inline]
jfs_lazycommit+0x470/0xc30 fs/jfs/jfs_txnmgr.c:2766
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
INFO: task jfsCommit:277 blocked for more than 143 seconds.
Not tainted 5.15.176-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jfsCommit state:D stack:27896 pid: 277 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6515
rwsem_down_read_slowpath+0x605/0xb40 kernel/locking/rwsem.c:1055
__down_read_common kernel/locking/rwsem.c:1239 [inline]
__down_read kernel/locking/rwsem.c:1252 [inline]
down_read_nested+0x9c/0x2f0 kernel/locking/rwsem.c:1624
diUpdatePMap+0x96/0xd90 fs/jfs/jfs_imap.c:2747
txUpdateMap+0x710/0x9e0 fs/jfs/jfs_txnmgr.c:2390
txLazyCommit fs/jfs/jfs_txnmgr.c:2698 [inline]
jfs_lazycommit+0x470/0xc30 fs/jfs/jfs_txnmgr.c:2766
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
INFO: task syz-executor208:4172 blocked for more than 144 seconds.
Not tainted 5.15.176-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor208 state:D stack:25472 pid: 4172 ppid: 4164 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
io_schedule+0x88/0x100 kernel/sched/core.c:8481
__lock_metapage+0x1ec/0x3c0 fs/jfs/jfs_metapage.c:49
lock_metapage fs/jfs/jfs_metapage.c:63 [inline]
__get_metapage+0x495/0x1070 fs/jfs/jfs_metapage.c:640
dbAllocCtl+0xdb/0x9a0 fs/jfs/jfs_dmap.c:1884
dbAllocAG+0x28b/0x10b0 fs/jfs/jfs_dmap.c:1432
dbAlloc+0x654/0xc90 fs/jfs/jfs_dmap.c:888
diNewIAG fs/jfs/jfs_imap.c:2510 [inline]
diAllocExt fs/jfs/jfs_imap.c:1905 [inline]
diAllocAG+0xa95/0x1e50 fs/jfs/jfs_imap.c:1669
diAlloc+0x1ce/0x1630 fs/jfs/jfs_imap.c:1590
ialloc+0x8b/0x970 fs/jfs/jfs_inode.c:56
jfs_mkdir+0x1c1/0xbb0 fs/jfs/namei.c:225
vfs_mkdir+0x3b6/0x590 fs/namei.c:4065
do_mkdirat+0x260/0x520 fs/namei.c:4090
__do_sys_mkdirat fs/namei.c:4105 [inline]
__se_sys_mkdirat fs/namei.c:4103 [inline]
__x64_sys_mkdirat+0x85/0x90 fs/namei.c:4103
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f48ec232d09
RSP: 002b:00007ffe9da10c88 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f48ec232d09
RDX: 0000000000000000 RSI: 00000000200005c0 RDI: 00000000ffffff9c
RBP: 00000000000f4240 R08: 000055559445f378 R09: 000055559445f378
R10: 000055559445f378 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffe9da10cc0 R14: 00007ffe9da10cac R15: 00007f48ec27b03b
Showing all locks held in the system:
2 locks held by kworker/0:0/7:
#0: ffff888017472138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc90000cc7d20 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
1 lock held by khungtaskd/27:
#0: ffffffff8cb1fce0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
1 lock held by jfsCommit/277:
#0: ffff88806e00a638 (&jfs_ip->rdwrlock/1){++++}-{3:3}, at: diUpdatePMap+0x96/0xd90 fs/jfs/jfs_imap.c:2747
2 locks held by getty/3925:
#0: ffff88807f1c2098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1: ffffc900025c62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158
6 locks held by syz-executor208/4172:
#0: ffff8881495ce460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:377
#1: ffff88806e00f480 (&type->i_mutex_dir_key#6/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:824 [inline]
#1: ffff88806e00f480 (&type->i_mutex_dir_key#6/1){+.+.}-{3:3}, at: filename_create+0x25c/0x530 fs/namei.c:3835
#2: ffff88802b7d0920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diAlloc+0x1b2/0x1630
#3: ffff88802b7d0890 (&imap->im_freelock){+.+.}-{3:3}, at: diNewIAG fs/jfs/jfs_imap.c:2460 [inline]
#3: ffff88802b7d0890 (&imap->im_freelock){+.+.}-{3:3}, at: diAllocExt fs/jfs/jfs_imap.c:1905 [inline]
#3: ffff88802b7d0890 (&imap->im_freelock){+.+.}-{3:3}, at: diAllocAG+0x4af/0x1e50 fs/jfs/jfs_imap.c:1669
#4: ffff88806e00a638 (&jfs_ip->rdwrlock/1){++++}-{3:3}, at: diNewIAG fs/jfs/jfs_imap.c:2477 [inline]
#4: ffff88806e00a638 (&jfs_ip->rdwrlock/1){++++}-{3:3}, at: diAllocExt fs/jfs/jfs_imap.c:1905 [inline]
#4: ffff88806e00a638 (&jfs_ip->rdwrlock/1){++++}-{3:3}, at: diAllocAG+0x861/0x1e50 fs/jfs/jfs_imap.c:1669
#5: ffff88806e0093b8 (&jfs_ip->rdwrlock#2/2){+.+.}-{3:3}, at: dbAlloc+0x63d/0xc90 fs/jfs/jfs_dmap.c:883
2 locks held by syz-executor208/5449:
#0: ffff88806e0133c0 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline]
#0: ffff88806e0133c0 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: lock_mount+0x62/0x2c0 fs/namespace.c:2248
#1: ffffffff8cb242a8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline]
#1: ffffffff8cb242a8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x280/0x740 kernel/rcu/tree_exp.h:845
1 lock held by syz-executor208/5450:
#0: ffff88806e0133c0 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline]
#0: ffff88806e0133c0 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: lock_mount+0x62/0x2c0 fs/namespace.c:2248
2 locks held by syz-executor208/5451:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.176-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xe72/0xeb0 kernel/hung_task.c:295
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5451 Comm: syz-executor208 Not tainted 5.15.176-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:unwind_next_frame+0x41b/0x1fa0 arch/x86/kernel/unwind_orc.c:461
Code: 0f b6 04 10 84 c0 0f 85 c5 14 00 00 c6 03 01 49 c7 c6 a0 96 a8 8a 49 8d 6e 04 49 8d 5e 05 49 89 ec 49 c1 ec 03 41 0f b6 04 14 <84> c0 0f 85 33 14 00 00 48 89 d8 48 c1 e8 03 0f b6 04 10 84 c0 0f
RSP: 0018:ffffc900049f7128 EFLAGS: 00000a03
RAX: 0000000000000000 RBX: ffffffff8e89e44d RCX: ffffffff8e1e4cd8
RDX: dffffc0000000000 RSI: ffffffff8e89e448 RDI: ffffffff8e1e4cd4
RBP: ffffffff8e89e44c R08: 0000000000000003 R09: ffffc900049f72d0
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff1d13c89
R13: ffffffff81ad5878 R14: ffffffff8e89e448 R15: ffffc900049f71e0
FS: 000055559445e380(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f48e4562000 CR3: 000000002a02c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
save_stack+0xf6/0x1e0 mm/page_owner.c:119
__reset_page_owner+0x52/0x180 mm/page_owner.c:140
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1340 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0xc34/0xcf0 mm/page_alloc.c:3317
free_unref_page_list+0x1f7/0x8e0 mm/page_alloc.c:3433
release_pages+0x1bb9/0x1f40 mm/swap.c:963
__pagevec_release+0x80/0xf0 mm/swap.c:983
pagevec_release include/linux/pagevec.h:81 [inline]
shmem_undo_range+0x67a/0x1b50 mm/shmem.c:964
shmem_truncate_range mm/shmem.c:1063 [inline]
shmem_evict_inode+0x21b/0xa00 mm/shmem.c:1145
evict+0x529/0x930 fs/inode.c:622
__dentry_kill+0x436/0x650 fs/dcache.c:586
dentry_kill+0xbb/0x290
dput+0xd8/0x1a0 fs/dcache.c:893
__fput+0x636/0x8e0 fs/file_table.c:288
task_work_run+0x129/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f48ec231f60
Code: ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 80 3d 41 f1 07 00 00 74 17 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c
RSP: 002b:00007ffe9da10af8 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 00007ffe9da10b10 RCX: 00007f48ec231f60
RDX: 0000000000000010 RSI: 0000000000004c00 RDI: 0000000000000003
RBP: 0000000000000004 R08: 0000000000005f14 R09: 0000000000005f10
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000001c802
R13: 00007ffe9da10b50 R14: 0000000000000003 R15: 000055559445e338
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.721 msecs