loop0: detected capacity change from 0 to 16
erofs: (device loop0): mounted with root inode @ nid 36.
BUG: scheduling while atomic: syz.0.17/5052/0x00000002
no locks held by syz.0.17/5052.
Modules linked in:
Preemption disabled at:
[<ffffffff839e8c47>] kmap_atomic include/linux/highmem-internal.h:196 [inline]
[<ffffffff839e8c47>] z_erofs_reload_indexes+0x347/0x590 fs/erofs/zmap.c:146
Kernel panic - not syncing: scheduling while atomic: panic_on_warn set ...
CPU: 1 PID: 5052 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
 panic+0x2f8/0x850 kernel/panic.c:309
 check_panic_on_warn+0x80/0xa0 kernel/panic.c:229
 __schedule_bug+0x193/0x1f0 kernel/sched/core.c:5589
 schedule_debug kernel/sched/core.c:5618 [inline]
 __schedule+0x1302/0x4350 kernel/sched/core.c:6286
 schedule+0x11b/0x1e0 kernel/sched/core.c:6478
 freezable_schedule include/linux/freezer.h:172 [inline]
 futex_wait_queue_me+0x22b/0x440 kernel/futex/core.c:2866
 futex_wait+0x256/0x680 kernel/futex/core.c:2967
 do_futex+0xdc2/0x12b0 kernel/futex/core.c:4018
 __do_sys_futex kernel/futex/core.c:4095 [inline]
 __se_sys_futex+0x389/0x420 kernel/futex/core.c:4076
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f5c768c1cb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5c75f250e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f5c76b3cfa8 RCX: 00007f5c768c1cb9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f5c76b3cfa8
RBP: 00007f5c76b3cfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5c76b3d038 R14: 00007ffc9a440660 R15: 00007ffc9a440748
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..