INFO: task syz-executor.5:5052 blocked for more than 143 seconds.
Not tainted 6.4.0-syzkaller-11478-gd528014517f2 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:19144 pid:5052 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x1873/0x48f0 kernel/sched/core.c:6710
schedule+0xc3/0x180 kernel/sched/core.c:6786
schedule_timeout+0x1bd/0x310 kernel/time/timer.c:2167
gfs2_gl_hash_clear+0x1a3/0x310 fs/gfs2/glock.c:2198
gfs2_put_super+0x833/0x8a0 fs/gfs2/super.c:657
generic_shutdown_super+0x134/0x340 fs/super.c:499
kill_block_super+0x68/0xa0 fs/super.c:1417
deactivate_locked_super+0xa4/0x110 fs/super.c:330
cleanup_mnt+0x426/0x4c0 fs/namespace.c:1254
task_work_run+0x24a/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297
do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f16e6a8d7f7
RSP: 002b:00007ffcd23ca7e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f16e6a8d7f7
RDX: 00007ffcd23ca8bc RSI: 000000000000000a RDI: 00007ffcd23ca8b0
RBP: 00007ffcd23ca8b0 R08: 00000000ffffffff R09: 00007ffcd23ca680
R10: 00005555564d5893 R11: 0000000000000246 R12: 00007f16e6ad643b
R13: 00007ffcd23cb970 R14: 00005555564d5810 R15: 00007ffcd23cb9b0
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8d328af0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:522
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8d328eb0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:522
1 lock held by khungtaskd/28:
#0: ffffffff8d328920 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
1 lock held by klogd/4453:
2 locks held by getty/4762:
#0: ffff88802945b098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900015b02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b1/0x1dc0 drivers/tty/n_tty.c:2187
1 lock held by syz-executor.5/5052:
#0: ffff888073af20e0 (&type->s_umount_key#110){+.+.}-{3:3}, at: deactivate_super+0xad/0xf0 fs/super.c:360
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.4.0-syzkaller-11478-gd528014517f2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x187/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xec2/0xf00 kernel/hung_task.c:379
kthread+0x2b8/0x350 kernel/kthread.c:389
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4453 Comm: klogd Not tainted 6.4.0-syzkaller-11478-gd528014517f2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:get_page_owner mm/page_owner.c:107 [inline]
RIP: 0010:__reset_page_owner+0xc1/0x190 mm/page_owner.c:152
Code: 9f 00 00 00 e8 40 d3 9d ff 41 83 ee 01 0f 82 b5 00 00 00 e8 31 d3 9d ff 48 89 df be 08 00 00 00 e8 34 85 f6 ff 48 0f ba 33 01 <48> 8b 05 38 35 55 0b 48 8d 2c 03 48 8d 7c 03 0c 48 89 f8 48 c1 e8
RSP: 0018:ffffc90002f6f738 EFLAGS: 00000257
RAX: ffffffff81ee2e01 RBX: ffff88801486e298 RCX: ffffffff81ee2ebc
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88801486e298
RBP: ffff88801486e270 R08: ffff88801486e29f R09: 1ffff1100290dc53
R10: dffffc0000000000 R11: ffffed100290dc54 R12: dffffc0000000000
R13: 0000000000000003 R14: 0000000000000004 R15: 1ffffffff240d3bc
FS: 00007f132a7fb380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c001c21e88 CR3: 000000002ca5f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1161 [inline]
free_unref_page_prepare+0x903/0xa30 mm/page_alloc.c:2348
free_unref_page+0x37/0x3f0 mm/page_alloc.c:2443
discard_slab mm/slub.c:2108 [inline]
__unfreeze_partials+0x1dc/0x220 mm/slub.c:2647
put_cpu_partial+0x116/0x180 mm/slub.c:2723
__slab_free+0x2b6/0x390 mm/slub.c:3671
qlist_free_all+0x22/0x60 mm/kasan/quarantine.c:185
kasan_quarantine_reduce+0x14b/0x160 mm/kasan/quarantine.c:292
__kasan_slab_alloc+0x23/0x70 mm/kasan/common.c:305
kasan_slab_alloc include/linux/kasan.h:186 [inline]
slab_post_alloc_hook+0x68/0x3a0 mm/slab.h:750
slab_alloc_node mm/slub.c:3470 [inline]
__kmem_cache_alloc_node+0x141/0x270 mm/slub.c:3509
kmalloc_trace+0x2a/0xe0 mm/slab_common.c:1076
kmalloc include/linux/slab.h:582 [inline]
syslog_print+0x121/0x9b0 kernel/printk/printk.c:1553
do_syslog+0x505/0x890 kernel/printk/printk.c:1732
__do_sys_syslog kernel/printk/printk.c:1824 [inline]
__se_sys_syslog kernel/printk/printk.c:1822 [inline]
__x64_sys_syslog+0x7c/0x90 kernel/printk/printk.c:1822
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f132a95cfa7
Code: 73 01 c3 48 8b 0d 81 ce 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 67 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 51 ce 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffe7facbbf8 EFLAGS: 00000206 ORIG_RAX: 0000000000000067
RAX: ffffffffffffffda RBX: 00007f132aafb4a0 RCX: 00007f132a95cfa7
RDX: 00000000000003ff RSI: 00007f132aafb4a0 RDI: 0000000000000002
RBP: 0000000000000000 R08: 0000000000000007 R09: e40c0b5c965feecd
R10: 0000000000004000 R11: 0000000000000206 R12: 00007f132aafb4a0
R13: 00007f132aaeb212 R14: 00007f132aafb53f R15: 00007f132aafb53f