INFO: task syz-executor.2:5108 blocked for more than 143 seconds.
Not tainted 6.9.0-syzkaller-10323-g8f6a15f095a6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:22896 pid:5108 tgid:5108 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6837
io_schedule+0xbf/0x130 kernel/sched/core.c:9043
TXN_SLEEP_DROP_LOCK fs/jfs/jfs_txnmgr.c:125 [inline]
txBegin+0x5b3/0xaf0 fs/jfs/jfs_txnmgr.c:374
jfs_unlink+0x291/0xb00 fs/jfs/namei.c:490
vfs_unlink+0x2fb/0x9b0 fs/namei.c:4343
do_unlinkat+0x5c0/0x750 fs/namei.c:4407
__do_sys_unlink fs/namei.c:4455 [inline]
__se_sys_unlink fs/namei.c:4453 [inline]
__x64_sys_unlink+0xc7/0x110 fs/namei.c:4453
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbcd567c697
RSP: 002b:00007ffe678abb38 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fbcd567c697
RDX: 00007ffe678abb60 RSI: 00007ffe678abbf0 RDI: 00007ffe678abbf0
RBP: 00007ffe678abbf0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffe678acce0
R13: 00007fbcd56c8336 R14: 000000000003674c R15: 0000000000000005
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8dbb1760 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#0: ffffffff8dbb1760 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#0: ffffffff8dbb1760 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
3 locks held by kworker/1:1/45:
#0: ffff888015480948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x12bf/0x1b60 kernel/workqueue.c:3206
#1: ffffc90000b57d80 (free_ipc_work){+.+.}-{0:0}, at: process_one_work+0x957/0x1b60 kernel/workqueue.c:3207
#2: ffffffff8dbbcef8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x282/0x3b0 kernel/rcu/tree_exp.h:291
2 locks held by getty/4835:
#0: ffff88802ad440a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2201
1 lock held by syz-executor.1/5103:
1 lock held by syz-executor.4/5105:
4 locks held by syz-executor.2/5108:
#0: ffff888062874420 (sb_writers#16){.+.+}-{0:0}, at: do_unlinkat+0x1d3/0x750 fs/namei.c:4390
#1: ffff888078b40580 (&type->i_mutex_dir_key#9/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:826 [inline]
#1: ffff888078b40580 (&type->i_mutex_dir_key#9/1){+.+.}-{3:3}, at: do_unlinkat+0x288/0x750 fs/namei.c:4394
#2: ffff888078b40ec0 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:791 [inline]
#2: ffff888078b40ec0 (&sb->s_type->i_mutex_key#25){+.+.}-{3:3}, at: vfs_unlink+0xd3/0x9b0 fs/namei.c:4332
#3: ffff888078b40a78 (&jfs_ip->rdwrlock#2){++++}-{3:3}, at: jfs_unlink+0x261/0xb00 fs/jfs/namei.c:488
1 lock held by syz-executor.3/5116:
1 lock held by syz-executor.0/7151:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.9.0-syzkaller-10323-g8f6a15f095a6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xf86/0x1240 kernel/hung_task.c:379
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.9.0-syzkaller-10323-g8f6a15f095a6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: events drain_vmap_area_work
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:218 [inline]
RIP: 0010:unwind_next_frame+0x289/0x23a0 arch/x86/kernel/unwind_orc.c:494
Code: 91 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 09 84 d2 74 05 e8 cf f9 ac 00 42 8b 04 b5 84 3f 26 91 <41> 83 c5 01 4a 8d 3c ad 84 3f 26 91 48 89 fa 48 c1 ea 03 89 44 24
RSP: 0018:ffffc900000e7690 EFLAGS: 00000246
RAX: 000000000001b446 RBX: ffffc900000e7710 RCX: ffffffff813cd8dd
RDX: 0000000000000000 RSI: ffffffff813cd8eb RDI: ffffffff912825b4
RBP: 0000000000000001 R08: 0000000000000004 R09: 000000000000798c
R10: 00000000000a2000 R11: 0000000000000004 R12: ffffffff81798cf4
R13: 000000000000798c R14: 000000000000798c R15: ffffc900000e7745
FS: 0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3aed54f580 CR3: 000000000d97a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x100/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
save_stack+0x162/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x8d/0x400 mm/page_owner.c:302
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1088 [inline]
free_unref_page+0x64a/0xe40 mm/page_alloc.c:2565
kasan_depopulate_vmalloc_pte+0x63/0x80 mm/kasan/shadow.c:408
apply_to_pte_range mm/memory.c:2752 [inline]
apply_to_pmd_range mm/memory.c:2796 [inline]
apply_to_pud_range mm/memory.c:2832 [inline]
apply_to_p4d_range mm/memory.c:2868 [inline]
__apply_to_page_range+0x795/0xdd0 mm/memory.c:2902
kasan_release_vmalloc+0xac/0xc0 mm/kasan/shadow.c:525
purge_vmap_node+0x3fc/0x920 mm/vmalloc.c:2207
__purge_vmap_area_lazy+0x9ca/0xc10 mm/vmalloc.c:2289
drain_vmap_area_work+0x27/0x40 mm/vmalloc.c:2323
process_one_work+0x9fb/0x1b60 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xf70 kernel/workqueue.c:3393