[Xen-devel] kernel BUG at net/core/dev.c:1133!

["Petersson, Mats" <Mats.Petersson@xxxxxxx>]

Looks like the GSO is involved?

I got this while running Dom0 only (no guests), with a
BOINC/Rosetta@home application running on all 4 cores. 

changeset:   10649:8e55c5c11475

Build: x86_32p (pae). 

------------[ cut here ]------------
kernel BUG at net/core/dev.c:1133!
invalid opcode: 0000 [#1]
SMP 
CPU:    0
EIP:    0061:[<c04dceb0>]    Not tainted VLI
EFLAGS: 00210297   (2.6.16.13-xen #12) 
EIP is at skb_gso_segment+0xf0/0x110
eax: 00000000   ebx: 00000003   ecx: 00000002   edx: c06e2e00
esi: 00000008   edi: cd9e32e0   ebp: c63a7900   esp: c0de5ad0
ds: 007b   es: 007b   ss: 0069
Process rosetta_5.25_i6 (pid: 8826, threadinfo=c0de4000 task=cb019560)
Stack: <0>c8f69060 00000000 ffffffa3 00000003 cd9e32e0 00000002 c63a7900
c04dcfb0 
       cd9e32e0 00000003 00000000 cd9e32e0 cf8e3000 cf8e3140 c04dd07e
cd9e32e0 
       cf8e3000 00000000 cd9e32e0 cf8e3000 c04ec07e cd9e32e0 cf8e3000
c0895140 
Call Trace:
 [<c04dcfb0>] dev_gso_segment+0x30/0xb0
 [<c04dd07e>] dev_hard_start_xmit+0x4e/0x110
 [<c04ec07e>] __qdisc_run+0xbe/0x280
 [<c04dd4b9>] dev_queue_xmit+0x379/0x380
 [<c05bbe44>] br_dev_queue_push_xmit+0xa4/0x140
 [<c05c2402>] br_nf_post_routing+0x102/0x1d0
 [<c05c22b0>] br_nf_dev_queue_xmit+0x0/0x50
 [<c05bbda0>] br_dev_queue_push_xmit+0x0/0x140
 [<c04f0eab>] nf_iterate+0x6b/0xa0
 [<c05bbda0>] br_dev_queue_push_xmit+0x0/0x140
 [<c05bbda0>] br_dev_queue_push_xmit+0x0/0x140
 [<c04f0f4e>] nf_hook_slow+0x6e/0x120
 [<c05bbda0>] br_dev_queue_push_xmit+0x0/0x140
 [<c05bbf40>] br_forward_finish+0x60/0x70
 [<c05bbda0>] br_dev_queue_push_xmit+0x0/0x140
 [<c05c1b71>] br_nf_forward_finish+0x71/0x130
 [<c05bbee0>] br_forward_finish+0x0/0x70
 [<c05c1d20>] br_nf_forward_ip+0xf0/0x1a0
 [<c05c1b00>] br_nf_forward_finish+0x0/0x130
 [<c05bbee0>] br_forward_finish+0x0/0x70
 [<c04f0eab>] nf_iterate+0x6b/0xa0
 [<c05bbee0>] br_forward_finish+0x0/0x70
 [<c05bbee0>] br_forward_finish+0x0/0x70
 [<c04f0f4e>] nf_hook_slow+0x6e/0x120
 [<c05bbee0>] br_forward_finish+0x0/0x70
 [<c05bc044>] __br_forward+0x74/0x80
 [<c05bbee0>] br_forward_finish+0x0/0x70
 [<c05bceb1>] br_handle_frame_finish+0xd1/0x160
 [<c05bcde0>] br_handle_frame_finish+0x0/0x160
 [<c05c0e0b>] br_nf_pre_routing_finish+0xfb/0x480
 [<c05bcde0>] br_handle_frame_finish+0x0/0x160
 [<c05c0d10>] br_nf_pre_routing_finish+0x0/0x480
 [<c054fe13>] ip_nat_in+0x43/0xc0
 [<c05c0d10>] br_nf_pre_routing_finish+0x0/0x480
 [<c04f0eab>] nf_iterate+0x6b/0xa0
 [<c05c0d10>] br_nf_pre_routing_finish+0x0/0x480
 [<c05c0d10>] br_nf_pre_routing_finish+0x0/0x480
 [<c04f0f4e>] nf_hook_slow+0x6e/0x120
 [<c05c0d10>] br_nf_pre_routing_finish+0x0/0x480
 [<c05c1914>] br_nf_pre_routing+0x404/0x580
 [<c05c0d10>] br_nf_pre_routing_finish+0x0/0x480
 [<c04f0eab>] nf_iterate+0x6b/0xa0
 [<c05bcde0>] br_handle_frame_finish+0x0/0x160
 [<c05bcde0>] br_handle_frame_finish+0x0/0x160
 [<c04f0f4e>] nf_hook_slow+0x6e/0x120
 [<c05bcde0>] br_handle_frame_finish+0x0/0x160
 [<c05bd124>] br_handle_frame+0x1e4/0x250
 [<c05bcde0>] br_handle_frame_finish+0x0/0x160
 [<c04ddae5>] netif_receive_skb+0x165/0x2a0
 [<c04ddcdf>] process_backlog+0xbf/0x180
 [<c04ddebf>] net_rx_action+0x11f/0x1d0
 [<c01262e6>] __do_softirq+0x86/0x120
 [<c01263f5>] do_softirq+0x75/0x90
 [<c0106cef>] do_IRQ+0x1f/0x30
 [<c04271d0>] evtchn_do_upcall+0x90/0x100
 [<c0105315>] hypervisor_callback+0x3d/0x48
Code: c2 2b 57 24 29 d0 8d 14 2a 89 87 94 00 00 00 89 57 60 8b 44 24 08
83 c4 0c 5b 5e 5f 5d c3 0f 0
b 69 03 fe 8c 66 c0 e9 69 ff ff ff <0f> 0b 6d 04 e8 ab 6c c0 e9 3a ff ff
ff 0f 0b 6c 04 e8 ab 6c c0 
 <0>Kernel panic - not syncing: Fatal exception in interrupt



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