INFO: task syz-executor.0:11445 blocked for more than 143 seconds.
      Not tainted 5.10.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:26520 pid:11445 ppid:  8466 flags:0x00004004
Call Trace:
 context_switch kernel/sched/core.c:3774 [inline]
 __schedule+0x92c/0xcb0 kernel/sched/core.c:4523
 schedule+0x14b/0x200 kernel/sched/core.c:4601
 schedule_timeout+0x15c/0x250 kernel/time/timer.c:1876
 gfs2_gl_hash_clear+0x128/0x380 fs/gfs2/glock.c:1989
 gfs2_fill_super+0x2aa7/0x3db0 fs/gfs2/ops_fstype.c:1233
 get_tree_bdev+0x3e9/0x5f0 fs/super.c:1344
 gfs2_get_tree+0x4c/0x1f0 fs/gfs2/ops_fstype.c:1256
 vfs_get_tree+0x88/0x270 fs/super.c:1549
 do_new_mount fs/namespace.c:2875 [inline]
 path_mount+0x17b4/0x2a20 fs/namespace.c:3205
 do_mount fs/namespace.c:3218 [inline]
 __do_sys_mount fs/namespace.c:3426 [inline]
 __se_sys_mount+0x28c/0x320 fs/namespace.c:3403
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x46090a
Code: Unable to access opcode bytes at RIP 0x4608e0.
RSP: 002b:00007f45ac219a88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f45ac219b20 RCX: 000000000046090a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f45ac219ae0
RBP: 00007f45ac219ae0 R08: 00007f45ac219b20 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 0000000020000200 R15: 0000000020047a20

Showing all locks held in the system:
1 lock held by khungtaskd/1638:
 #0: ffffffff8bae6800 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 arch/x86/pci/mmconfig_64.c:151
1 lock held by systemd-journal/4884:
1 lock held by in:imklog/8129:
 #0: ffff88801d5ec370 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24b/0x2e0 fs/file.c:932
1 lock held by syz-executor.0/11445:
 #0: ffff88802186e0e0 (&type->s_umount_key#59/1){+.+.}-{3:3}, at: alloc_super+0x1a7/0x860 fs/super.c:229

=============================================

NMI backtrace for cpu 1
CPU: 1 PID: 1638 Comm: khungtaskd Not tainted 5.10.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x137/0x1be lib/dump_stack.c:118
 nmi_cpu_backtrace+0x16c/0x190 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x191/0x2f0 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:209 [inline]
 watchdog+0xcb0/0xcf0 kernel/hung_task.c:295
 kthread+0x36b/0x390 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3144 Comm: kworker/0:2 Not tainted 5.10.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:29 [inline]
RIP: 0010:rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:321 [inline]
RIP: 0010:rcu_is_watching+0x52/0xb0 kernel/rcu/tree.c:1102
Code: a6 5c 8b 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 ef 6c 55 00 48 c7 c3 68 57 03 00 49 03 1e 48 89 d8 48 c1 e8 03 <42> 8a 04 38 84 c0 75 1d 8b 03 65 ff 0d e9 67 a0 7e 74 0b 83 e0 02
RSP: 0000:ffffc900015afb28 EFLAGS: 00000a06
RAX: 1ffff11017386aed RBX: ffff8880b9c35768 RCX: ffff88801afb9a40
RDX: ffff88801afb9a40 RSI: 0000000000000003 RDI: 0000000000000000
RBP: 0000000000000002 R08: ffffffff842f8a74 R09: fffffbfff19dc486
R10: fffffbfff19dc486 R11: 0000000000000000 R12: ffff888067642012
R13: dffffc0000000000 R14: ffffffff8b5ca660 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd8d1ba5000 CR3: 000000001182f000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rcu_read_lock_held_common kernel/rcu/update.c:106 [inline]
 rcu_read_lock_sched_held+0x23/0xb0 kernel/rcu/update.c:121
 trace_get_random_bytes+0xb4/0x230 include/trace/events/random.h:211
 _get_random_bytes+0x30/0x1b0 drivers/char/random.c:1553
 nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:533 [inline]
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:562 [inline]
 nsim_dev_trap_report_work+0x694/0xb20 drivers/net/netdevsim/dev.c:603
 process_one_work+0x789/0xfc0 kernel/workqueue.c:2272
 worker_thread+0xaa4/0x1460 kernel/workqueue.c:2418
 kthread+0x36b/0x390 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296