Re: oops with 2.6.23.1, marvel, software raid, reiserfs and samba

From: Herbert Xu
Date: Sun Dec 16 2007 - 06:57:33 EST


Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
>
>> Dec 7 17:20:53 sata_fileserver kernel: Code: 6c 39 df 74 59 8d b6 00
>> 00 00 00 85 db 74 4f 8b 55 cc 8d 43 20 8b 0a 3b 48 18 0f 88 f4 05 00
>> 00 89 ce 2b 70 18 8b 83 90 00 00 00 <0f> b6 50 0d 89 d0 83 e0 02 3c
>> 01 8b 43 50 83 d6 ff 39 c6 0f 82

This means that skb->network_header == NULL so this line crashes:

if (tcp_hdr(skb)->syn)
offset--;

> That's a networking crash. Do the oops traces which you're getting all look
> like this one?

What's spooky is that I just did a google and we've had reports
since 1998 all crashing on exactly the same line in tcp_recvmsg.

Cheers,
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Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx>
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