loop_reread_partitions: partition scan of loop5 () failed (rc=-13)
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 19718 Comm: kworker/1:5 Not tainted 4.20.0-rc1-next-20181108+ #108
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events smc_tcp_listen_work
RIP: 0010:kernel_accept+0x5a/0x310 net/socket.c:3246
Code: 48 c1 ea 03 80 3c 02 00 0f 85 4a 02 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5d 20 48 8d bb 50 03 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 14 02 00 00 48 8d 7b 10 0f b6
RSP: 0018:ffff8801c6d075b0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff1003aff5181
RDX: 000000000000006a RSI: ffffffff8616c7af RDI: 0000000000000350
RBP: ffff8801c6d075e0 R08: ffff8801d7fa8c08 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801d7fa8340 R12: ffff8801c6d07690
R13: ffff8801780a3640 R14: 0000000000000000 R15: ffff880183849938
FS:  0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fba581ce820 CR3: 00000001c43ee000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kobject: 'loop2' (0000000096b41178): kobject_uevent_env
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 smc_clcsock_accept net/smc/af_smc.c:834 [inline]
 smc_tcp_listen_work+0x218/0x11c0 net/smc/af_smc.c:1302
kobject: 'loop2' (0000000096b41178): fill_kobj_path: path = '/devices/virtual/block/loop2'
 process_one_work+0xc8b/0x1c40 kernel/workqueue.c:2153
kobject: 'loop1' (0000000073384628): kobject_uevent_env
kobject: 'loop1' (0000000073384628): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop5' (000000002e398083): kobject_uevent_env
 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296
kobject: 'loop5' (000000002e398083): fill_kobj_path: path = '/devices/virtual/block/loop5'
 kthread+0x35a/0x440 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
---[ end trace 2ab6249be61887ad ]---
RIP: 0010:kernel_accept+0x5a/0x310 net/socket.c:3246
Code: 48 c1 ea 03 80 3c 02 00 0f 85 4a 02 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5d 20 48 8d bb 50 03 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 14 02 00 00 48 8d 7b 10 0f b6
kobject: 'loop4' (000000004ed40d87): kobject_uevent_env
RSP: 0018:ffff8801c6d075b0 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff1003aff5181
RDX: 000000000000006a RSI: ffffffff8616c7af RDI: 0000000000000350
loop_reread_partitions: partition scan of loop5 () failed (rc=-13)
RBP: ffff8801c6d075e0 R08: ffff8801d7fa8c08 R09: 0000000000000006
kobject: 'loop4' (000000004ed40d87): fill_kobj_path: path = '/devices/virtual/block/loop4'
R10: 0000000000000000 R11: ffff8801d7fa8340 R12: ffff8801c6d07690
R13: ffff8801780a3640 R14: 0000000000000000 R15: ffff880183849938
FS:  0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
kobject: 'loop5' (000000002e398083): kobject_uevent_env
kobject: 'loop5' (000000002e398083): fill_kobj_path: path = '/devices/virtual/block/loop5'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
loop_reread_partitions: partition scan of loop5 () failed (rc=-13)
CR2: 0000000000625208 CR3: 00000001ca96c000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'loop5' (000000002e398083): kobject_uevent_env
kobject: 'loop5' (000000002e398083): fill_kobj_path: path = '/devices/virtual/block/loop5'