smc: removing ib device syz0 ------------[ cut here ]------------ sysfs group 'power' not found for kobject 'issm0' WARNING: CPU: 0 PID: 364 at fs/sysfs/group.c:281 sysfs_remove_group+0x16c/0x280 fs/sysfs/group.c:279 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 364 Comm: kworker/u4:8 Not tainted 5.9.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_unbound ib_unregister_work Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1d6/0x29e lib/dump_stack.c:118 panic+0x2c0/0x800 kernel/panic.c:231 __warn+0x227/0x250 kernel/panic.c:600 report_bug+0x1b1/0x2e0 lib/bug.c:198 handle_bug+0x42/0x80 arch/x86/kernel/traps.c:234 exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:254 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536 RIP: 0010:sysfs_remove_group+0x16c/0x280 fs/sysfs/group.c:279 Code: 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 48 3b cd ff 49 8b 17 48 c7 c7 44 7f 2d 89 48 89 de 31 c0 e8 b4 f3 5e ff <0f> 0b 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 72 54 8d ff 49 8d 5e 20 RSP: 0018:ffffc900019d7a90 EFLAGS: 00010246 RAX: c4b74001b0c95a00 RBX: ffffffff88c49a60 RCX: ffff8880a86ba300 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffffffff118934d R08: ffffffff815e2810 R09: ffffed1015d062c0 R10: ffffed1015d062c0 R11: 0000000000000000 R12: ffff88809afd6910 R13: dffffc0000000000 R14: ffffffff88c49a68 R15: ffff8880428da5d0 device_del+0x280/0x1280 drivers/base/core.c:3080 cdev_device_del+0x22/0xe0 fs/char_dev.c:573 ib_umad_kill_port+0x38/0x220 drivers/infiniband/core/user_mad.c:1326 ib_umad_remove_one+0x172/0x280 drivers/infiniband/core/user_mad.c:1411 remove_client_context+0xb3/0x1e0 drivers/infiniband/core/device.c:735 disable_device+0xec/0x2e0 drivers/infiniband/core/device.c:1285 __ib_unregister_device+0x6c/0x170 drivers/infiniband/core/device.c:1460 ib_unregister_work+0x15/0x30 drivers/infiniband/core/device.c:1571 process_one_work+0x789/0xfc0 kernel/workqueue.c:2269 worker_thread+0xaa4/0x1460 kernel/workqueue.c:2415 kthread+0x37e/0x3a0 drivers/block/aoe/aoecmd.c:1234 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Kernel Offset: disabled Rebooting in 86400 seconds..