syzbot

BUG: scheduling while atomic: syz-executor.1/980/0x00000002
Modules linked in:
Preemption disabled at:
[<ffffffff84c79986>] __down_read_common kernel/locking/rwsem.c:1285 [inline]
[<ffffffff84c79986>] __down_read kernel/locking/rwsem.c:1300 [inline]
[<ffffffff84c79986>] down_read+0x96/0xf80 kernel/locking/rwsem.c:1551
CPU: 1 PID: 980 Comm: syz-executor.1 Tainted: G        W         5.15.148-syzkaller-00718-g993bed180178 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106
 dump_stack+0x15/0x17 lib/dump_stack.c:113
 __schedule_bug+0x195/0x260 kernel/sched/core.c:5707
 schedule_debug kernel/sched/core.c:5734 [inline]
 __schedule+0xd19/0x1590 kernel/sched/core.c:6402
 schedule+0x11f/0x1e0 kernel/sched/core.c:6595
 schedule_timeout+0x18c/0x370 kernel/time/timer.c:1890
 io_schedule_timeout+0x9e/0x130 kernel/sched/core.c:8629
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common_io+0x187/0x2e0 kernel/sched/completion.c:123
 wait_for_completion_io_timeout+0x9/0x10 kernel/sched/completion.c:191
 submit_bio_wait+0x15b/0x210 block/bio.c:1237
 blkdev_issue_discard+0x139/0x1d0 block/blk-lib.c:143
 __jbd2_journal_erase fs/jbd2/journal.c:1832 [inline]
 jbd2_journal_flush+0x9ac/0xc80 fs/jbd2/journal.c:2496
 ext4_ioctl_checkpoint fs/ext4/ioctl.c:849 [inline]
 __ext4_ioctl fs/ext4/ioctl.c:1267 [inline]
 ext4_ioctl+0x30f4/0x5830 fs/ext4/ioctl.c:1276
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0x114/0x190 fs/ioctl.c:860
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:860
 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+0x61/0xcb
RIP: 0033:0x7f6fed5a1e69
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6fec3150c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6fed6cff80 RCX: 00007f6fed5a1e69
RDX: 00000000200005c0 RSI: 000000004004662b RDI: 000000000000000a
RBP: 00007f6fed5ee47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f6fed6cff80 R15: 00007ffc6ca1d618
 </TASK>