From: Al Viro <viro@ZenIV.linux.org.uk>
To: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Cc: David Miller <davem@davemloft.net>,
sparclinux@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: sparc oops in ip_fast_csum
Date: Sat, 5 Jan 2008 09:44:00 +0000 [thread overview]
Message-ID: <20080105094400.GH27894@ZenIV.linux.org.uk> (raw)
In-Reply-To: <200801041837.37650.m.kozlowski@tuxland.pl>
On Fri, Jan 04, 2008 at 06:37:36PM +0100, Mariusz Kozlowski wrote:
> Hello,
>
> This comes from the Linus latest linux-2.6 tree. Randomly happened.
> Can't reproduce that. More info below.
ip_fast_csum() called from raw_send_hdrinc() from raw_sendmsg() ran through
the page boundary into unmapped page... Bloody odd, that, seeing that
we have checked iph->ihl * 4U <= length and had done
err = memcpy_fromiovecend((void *)iph, from, 0, length);
before the
iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
that had triggered that crap..
next prev parent reply other threads:[~2008-01-05 9:44 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-04 17:37 sparc oops in ip_fast_csum Mariusz Kozlowski
2008-01-05 9:44 ` Al Viro [this message]
2008-01-06 0:22 ` Herbert Xu
2008-01-06 0:57 ` Jan Engelhardt
2008-01-06 1:03 ` Herbert Xu
2008-01-06 2:02 ` Al Viro
2008-01-06 4:14 ` Herbert Xu
2008-01-14 6:09 ` Patrick McHardy
2008-01-14 6:19 ` David Miller
2008-01-06 7:15 ` David Miller
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