gfs2: fsid=syz:syz.0: Error 10 writing to journal, jid=0
gfs2: fsid=syz:syz.0: fatal: I/O error(s)
gfs2: fsid=syz:syz.0: about to withdraw this file system
BUG: sleeping function called from invalid context at kernel/sched/completion.c:101
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 4430, name: gfs2_logd
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
3 locks held by gfs2_logd/4430:
 #0: ffff888051a21058 (&sdp->sd_log_flush_lock){++++}-{3:3}, at: gfs2_log_flush+0xd9/0x24e0 fs/gfs2/log.c:1043
 #1: ffff888051a20e80 (&sdp->sd_log_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #1: ffff888051a20e80 (&sdp->sd_log_lock){+.+.}-{2:2}, at: gfs2_log_lock fs/gfs2/log.h:32 [inline]
 #1: ffff888051a20e80 (&sdp->sd_log_lock){+.+.}-{2:2}, at: gfs2_flush_revokes+0x4e/0x80 fs/gfs2/log.c:814
 #2: ffff888051a21248 (&sdp->sd_freeze_mutex){+.+.}-{3:3}, at: signal_our_withdraw fs/gfs2/util.c:155 [inline]
 #2: ffff888051a21248 (&sdp->sd_freeze_mutex){+.+.}-{3:3}, at: gfs2_withdraw+0x5d0/0x1780 fs/gfs2/util.c:354
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 PID: 4430 Comm: gfs2_logd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x168/0x22e lib/dump_stack.c:106
 __might_resched+0x48d/0x610 kernel/sched/core.c:9966
 __wait_for_common kernel/sched/completion.c:101 [inline]
 wait_for_common kernel/sched/completion.c:117 [inline]
 wait_for_completion+0x8e/0x590 kernel/sched/completion.c:138
 kthread_stop+0x197/0x650 kernel/kthread.c:711
 signal_our_withdraw fs/gfs2/util.c:159 [inline]
 gfs2_withdraw+0x643/0x1780 fs/gfs2/util.c:354
 gfs2_ail1_empty+0x7be/0x850 fs/gfs2/log.c:377
 gfs2_flush_revokes+0x58/0x80 fs/gfs2/log.c:815
 revoke_lo_before_commit+0x28/0x5f0 fs/gfs2/lops.c:869
 lops_before_commit fs/gfs2/lops.h:40 [inline]
 gfs2_log_flush+0xb83/0x24e0 fs/gfs2/log.c:1102
 gfs2_logd+0x367/0xe40 fs/gfs2/log.c:1322
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
BUG: scheduling while atomic: gfs2_logd/4430/0x00000002
3 locks held by gfs2_logd/4430:
 #0: ffff888051a21058 (&sdp->sd_log_flush_lock){++++}-{3:3}, at: gfs2_log_flush+0xd9/0x24e0 fs/gfs2/log.c:1043
 #1: ffff888051a20e80 (&sdp->sd_log_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #1: ffff888051a20e80 (&sdp->sd_log_lock){+.+.}-{2:2}, at: gfs2_log_lock fs/gfs2/log.h:32 [inline]
 #1: ffff888051a20e80 (&sdp->sd_log_lock){+.+.}-{2:2}, at: gfs2_flush_revokes+0x4e/0x80 fs/gfs2/log.c:814
 #2: ffff888051a21248 (&sdp->sd_freeze_mutex){+.+.}-{3:3}, at: signal_our_withdraw fs/gfs2/util.c:155 [inline]
 #2: ffff888051a21248 (&sdp->sd_freeze_mutex){+.+.}-{3:3}, at: gfs2_withdraw+0x5d0/0x1780 fs/gfs2/util.c:354
Modules linked in:
Preemption disabled at:
[<0000000000000000>] 0x0