RAX: ffffffffffffffda RBX: 00007fd649e59c90 RCX: 0000000000459a09
RDX: 0000000020000100 RSI: 0000000000004c80 RDI: 0000000000000004
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd649e5a6d4
R13: 00000000004c5a72 R14: 00000000004da328 R15: 0000000000000005
------------[ cut here ]------------
WARNING: CPU: 0 PID: 11491 at block/blk-mq-sched.c:558 blk_mq_sched_free_requests block/blk-mq-sched.c:558 [inline]
WARNING: CPU: 0 PID: 11491 at block/blk-mq-sched.c:558 blk_mq_init_sched+0xad6/0xc00 block/blk-mq-sched.c:543
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 11491 Comm: syz-executor.2 Not tainted 5.3.0+ #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+0x1d8/0x2f8 lib/dump_stack.c:113
 panic+0x25c/0x799 kernel/panic.c:219
 __warn+0x22f/0x230 kernel/panic.c:576
 report_bug+0x190/0x290 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 do_error_trap+0xd7/0x440 arch/x86/kernel/traps.c:272
 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:291
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028
RIP: 0010:blk_mq_sched_free_requests block/blk-mq-sched.c:558 [inline]
RIP: 0010:blk_mq_init_sched+0xad6/0xc00 block/blk-mq-sched.c:543
Code: f6 e8 9e 03 00 00 49 83 c6 10 4c 89 f7 e8 22 03 37 04 e9 ce fd ff ff e8 b8 81 3f fe 48 c7 c7 a2 5f 35 88 31 c0 e8 bd a8 28 fe <0f> 0b e9 ce f9 ff ff e8 9e 81 3f fe 48 c7 c7 a2 5f 35 88 31 c0 e8
RSP: 0018:ffff8880597afbb8 EFLAGS: 00010246
RAX: 0000000000000024 RBX: 0000000000000000 RCX: 77907f2b925d4d00
RDX: ffffc9000a36f000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffff8880597afc50 R08: ffffffff815c9744 R09: ffffed1015d46090
R10: ffffed1015d46090 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff88803d1aeb50 R14: ffff88803d1ae240 R15: ffff88803d1ae290
 elevator_init_mq+0x317/0x450 block/elevator.c:719
 __device_add_disk+0x6d/0x1140 block/genhd.c:705
 device_add_disk+0x2a/0x40 block/genhd.c:763
 add_disk include/linux/genhd.h:429 [inline]
 loop_add+0x5d1/0x780 drivers/block/loop.c:2051
 loop_control_ioctl+0x422/0x640 drivers/block/loop.c:2174
 do_vfs_ioctl+0x744/0x1730 fs/ioctl.c:46
 ksys_ioctl fs/ioctl.c:713 [inline]
 __do_sys_ioctl fs/ioctl.c:720 [inline]
 __se_sys_ioctl fs/ioctl.c:718 [inline]
 __x64_sys_ioctl+0xe3/0x120 fs/ioctl.c:718
 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459a09
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fd649e59c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd649e59c90 RCX: 0000000000459a09
RDX: 0000000020000100 RSI: 0000000000004c80 RDI: 0000000000000004
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd649e5a6d4
R13: 00000000004c5a72 R14: 00000000004da328 R15: 0000000000000005
Kernel Offset: disabled
Rebooting in 86400 seconds..