On Tue, Oct 10, 2006 at 06:17:06PM -0500, Christopher S. Aker wrote:
> This is 2.6.18-um, on top of a 2.6.16.29-skas3-v8.2 host.
>
> Kernel file is here:
> http://www.theshore.net/~caker/uml/kernels/2.6.18-linode25
>
>
> Kernel panic - not syncing: Kernel mode fault at addr 0x92c00000, ip
> 0x80bcead
The stack I get from that is:
85a0f49c: [<800350cf>] csum_partial+0xdb/0xe8
85a0f74c: [<802aafe2>] skb_checksum+0xe7/0x28f
85a0f788: [<802afd31>] skb_checksum_help+0x9c/0x13e
85a0f7ac: [<803292fc>] ip_nat_fn+0x1d2/0x1e7
85a0f7e0: [<80329528>] ip_nat_local_fn+0x75/0xf3
85a0f808: [<802d8569>] nf_iterate+0x63/0x7b
85a0f830: [<802d85ec>] nf_hook_slow+0x6b/0xe4
85a0f86c: [<802e4a44>] ip_queue_xmit+0x3d7/0x4c2
85a0f944: [<802f7668>] tcp_transmit_skb+0x2b8/0x4b1
85a0f984: [<802f91fd>] tcp_push_one+0xde/0x159
85a0f9ac: [<802eca55>] tcp_sendmsg+0x438/0xe54
85a0fa30: [<8030a718>] inet_sendmsg+0x4a/0x56
__sock_sendmsg
85a0fa48: [<802a4aad>] do_sock_write+0xbb/0xc5
85a0fa6c: [<802a4c5f>] sock_aio_write+0x95/0x99
85a0fae0: [<80082978>] do_sync_write+0xde/0x124
85a0fb90: [<80082b81>] vfs_write+0x1c3/0x23d
85a0fbc8: [<80082ccc>] sys_write+0x51/0x80
85a0fbf0: [<80022bda>] handle_syscall+0x11a/0x138
85a0fc6c: [<80033b68>] handle_trap+0x31/0x12d
85a0fc94: [<80034192>] userspace+0x1c7/0x21e
85a0fcf0: [<80022808>] fork_handler+0xef/0xff
85a0fd1c: [<8039a828>] __restore+0x0/0x8
85a0fd5c: [<8039aa81>] kill+0x11/0x20
> Is this a UML issue?
Hard to say. With a kernel fault, I'd be tempted to say so, but I see no
UML code on the stack.
Have you seen just this one occurence of this? I spent part of the
afternoon dusting off a patch which would provide the registers at the
time of the segfault. That maybe would have helped here.
Jeff
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