Re: Linux 5.1.5 (a regression: kernel BUG at lib/list_debug.c:29!)

[Randy Dunlap]

On 5/25/19 1:37 PM, rwarsow@xxxxxx wrote:
> hallo
> 
> I today I got a regression
> 
> see the attached dmesg
> 
> -- 
> 
> Ronald


[adding netdev + TIPC maintainers]


[    4.953673] ------------[ cut here ]------------
[    4.953674] kernel BUG at lib/list_debug.c:29!
[    4.953678] invalid opcode: 0000 [#1] PREEMPT SMP PTI
[    4.953680] CPU: 3 PID: 1437 Comm: (t-daemon) Not tainted 5.1.5_MY #1
[    4.953681] Hardware name: MSI MS-7A72/B250 PC MATE (MS-7A72), BIOS 3.90 07/05/2018
[    4.953685] RIP: 0010:__list_add_valid.cold+0x26/0x3f
[    4.953686] Code: 00 00 00 c3 4c 89 c1 48 c7 c7 28 dc 5e ab e8 0e 80 b4 ff 0f 0b 48 89 f2 4c 89 c1 48 89 fe 48 c7 c7 d8 dc 5e ab e8 f7 7f b4 ff <0f> 0b 48 89 d1 4c 89 c6 4c 89 ca 48 c7 c7 80 dc 5e ab e8 e0 7f b4
[    4.953687] RSP: 0018:ffffb18ec22ffd88 EFLAGS: 00010246
[    4.953689] RAX: 0000000000000058 RBX: ffffffffab8f5f00 RCX: 0000000000000000
[    4.953690] RDX: 0000000000000000 RSI: ffff96b11eed5548 RDI: 00000000ffffffff
[    4.953690] RBP: ffffffffab8f6090 R08: 0000000000000366 R09: 0000000000000003
[    4.953691] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffffab8f6090
[    4.953692] R13: 0000000000000036 R14: ffff96b119564c00 R15: 0000000000000000
[    4.953693] FS:  00007f4f879bc980(0000) GS:ffff96b11eec0000(0000) knlGS:0000000000000000
[    4.953694] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    4.953695] CR2: 000055ed16dfe800 CR3: 0000000459802005 CR4: 00000000003606e0
[    4.953696] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    4.953697] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    4.953697] Call Trace:
[    4.953701]  proto_register+0x13b/0x1f0
[    4.953704]  tipc_socket_init+0x13/0x40
[    4.953707]  tipc_init_net+0xa5/0x130
[    4.953709]  ops_init+0x35/0x100
[    4.953711]  setup_net+0xc4/0x1e0
[    4.953712]  copy_net_ns+0xbd/0x180
[    4.953715]  create_new_namespaces+0x113/0x1e0
[    4.953716]  unshare_nsproxy_namespaces+0x50/0xa0
[    4.953719]  ksys_unshare+0x186/0x350
[    4.953721]  __x64_sys_unshare+0x9/0x10
[    4.953722]  do_syscall_64+0x50/0x160
[    4.953725]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[    4.953726] RIP: 0033:0x7f4f88a04e4b
[    4.953728] Code: 73 01 c3 48 8b 0d 3d 40 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 0d 40 0c 00 f7 d8 64 89 01 48
[    4.953729] RSP: 002b:00007ffc7f4d2088 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
[    4.953730] RAX: ffffffffffffffda RBX: 000055ed16eeab10 RCX: 00007f4f88a04e4b
[    4.953731] RDX: 0000000000000000 RSI: 00007ffc7f4d1ff0 RDI: 0000000040000000
[    4.953732] RBP: 00007ffc7f4d2270 R08: 00007ffc7f4d2074 R09: 0000000000000001
[    4.953732] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000fffffff5
[    4.953733] R13: 0000000000000000 R14: 000055ed16fcf2f0 R15: 0000000000000000
[    4.953735] Modules linked in: kvm_intel kvm irqbypass iTCO_wdt iTCO_vendor_support i915 video intel_gtt
[    4.953739] ---[ end trace 40639449ef1b96be ]---



Full log is at https://lore.kernel.org/lkml/f3c89197-90dc-240b-d96b-aa1286af756a@xxxxxx/T/#u



-- 
~Randy