INFO: task syz-executor.0:5461 blocked for more than 143 seconds.
Not tainted 6.6.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:23248 pid:5461 ppid:5397 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x19b9/0x4b10 kernel/sched/core.c:6695
schedule+0xbf/0x180 kernel/sched/core.c:6771
io_schedule+0x88/0x100 kernel/sched/core.c:9026
folio_wait_bit_common+0x87d/0x1280 mm/filemap.c:1301
folio_wait_locked include/linux/pagemap.h:1117 [inline]
gfs2_jhead_process_page+0x190/0x740 fs/gfs2/lops.c:477
gfs2_find_jhead+0x9c5/0xf00 fs/gfs2/lops.c:583
check_journal_clean+0x191/0x350 fs/gfs2/util.c:76
init_journal+0x1869/0x23e0 fs/gfs2/ops_fstype.c:827
init_inodes+0xdc/0x310 fs/gfs2/ops_fstype.c:885
gfs2_fill_super+0x1c69/0x26a0 fs/gfs2/ops_fstype.c:1268
get_tree_bdev+0x412/0x5b0 fs/super.c:1577
gfs2_get_tree+0x50/0x210 fs/gfs2/ops_fstype.c:1348
vfs_get_tree+0x88/0x280 fs/super.c:1750
do_new_mount+0x28b/0xae0 fs/namespace.c:3335
do_mount fs/namespace.c:3675 [inline]
__do_sys_mount fs/namespace.c:3884 [inline]
__se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3861
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: 0033:0x7f2b3ce7e1ea
RSP: 002b:00007f2b3dc29ee8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f2b3dc29f80 RCX: 00007f2b3ce7e1ea
RDX: 000000002001f680 RSI: 000000002001f6c0 RDI: 00007f2b3dc29f40
RBP: 000000002001f680 R08: 00007f2b3dc29f80 R09: 0000000000000600
R10: 0000000000000600 R11: 0000000000000246 R12: 000000002001f6c0
R13: 00007f2b3dc29f40 R14: 000000000001f679 R15: 0000000020000080
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8d32a8e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:303 [inline]
#0: ffffffff8d32a8e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:749 [inline]
#0: ffffffff8d32a8e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6613
3 locks held by udevd/4488:
#0: ffff8880b983b318 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:558
#1: ffff8880b9827808 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x43d/0x770 kernel/sched/psi.c:999
#2: ffffffff8d32a8e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:303 [inline]
#2: ffffffff8d32a8e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:749 [inline]
#2: ffffffff8d32a8e0 (rcu_read_lock){....}-{1:2}, at: dput+0x4e/0x470 fs/dcache.c:899
2 locks held by getty/4795:
#0: ffff88814ae3e0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900015a72f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ad/0x1db0 drivers/tty/n_tty.c:2206
1 lock held by syz-executor.0/5461:
#0: ffff8880287480e0 (&type->s_umount_key#53){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff8880287480e0 (&type->s_umount_key#53){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff8880287480e0 (&type->s_umount_key#53){+.+.}-{3:3}, at: get_tree_bdev+0x36a/0x5b0 fs/super.c:1575
1 lock held by syz-executor.0/6187:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.6.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x494/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x194/0x2f0 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+0xfa1/0xfe0 kernel/hung_task.c:379
kthread+0x2cf/0x360 kernel/kthread.c:388
ret_from_fork+0x44/0x70 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.6.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:unwind_next_frame+0x2e/0x2b40 arch/x86/kernel/unwind_orc.c:470
Code: 56 41 55 41 54 53 48 81 ec a0 00 00 00 49 89 fd 48 bd 00 00 00 00 00 fc ff df e8 fd aa 4f 00 49 8d 5d 48 48 89 d8 48 c1 e8 03 <48> 89 44 24 48 80 3c 28 00 74 08 48 89 df e8 6f 99 ac 00 48 89 5c
RSP: 0018:ffffc900001574c0 EFLAGS: 00000a06
RAX: 1ffff9200002aec9 RBX: ffffc90000157648 RCX: ffff888016a45940
RDX: 0000000080000100 RSI: ffffc90000157690 RDI: ffffc90000157600
RBP: dffffc0000000000 R08: ffffffff813dbf24 R09: 0000000000000000
R10: ffffc90000157600 R11: fffff5200002aecc R12: ffffc90000157698
R13: ffffc90000157600 R14: ffffc90000157600 R15: ffffc90000157608
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1aae5fe000 CR3: 000000000d12f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__unwind_start+0x63d/0x7a0 arch/x86/kernel/unwind_orc.c:760
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0xf9/0x190 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:45 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
kasan_save_free_info+0x24/0x40 mm/kasan/generic.c:522
____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
kasan_slab_free include/linux/kasan.h:164 [inline]
slab_free_hook mm/slub.c:1800 [inline]
slab_free_freelist_hook mm/slub.c:1826 [inline]
slab_free mm/slub.c:3809 [inline]
kmem_cache_free+0x28a/0x4f0 mm/slub.c:3831
rcu_do_batch kernel/rcu/tree.c:2139 [inline]
rcu_core+0xacb/0x1790 kernel/rcu/tree.c:2403
__do_softirq+0x2a7/0x8fc kernel/softirq.c:553
run_ksoftirqd+0xc1/0x120 kernel/softirq.c:921
smpboot_thread_fn+0x52c/0x9f0 kernel/smpboot.c:164
kthread+0x2cf/0x360 kernel/kthread.c:388
ret_from_fork+0x44/0x70 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304