From: Andrzej Pietrasiewicz <andrzej.p-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
To: Eric Dumazet <eric.dumazet-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Kyungmin Park
<kyungmin.park-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>,
Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org>,
Greg Kroah-Hartman
<gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>,
Marek Szyprowski
<m.szyprowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>,
Michal Nazarewicz
<mina86-deATy8a+UHjQT0dZR+AlfA@public.gmane.org>,
"David S. Miller" <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>,
Alexey Kuznetsov <kuznet-v/Mj1YrvjDBInbfyfbPRSQ@public.gmane.org>,
James Morris <jmorris-gx6/JNMH7DfYtjvyW6yDsg@public.gmane.org>,
Hideaki YOSHIFUJI
<yoshfuji-VfPWfsRibaP+Ru+s062T9g@public.gmane.org>,
Patrick McHardy <kaber-dcUjhNyLwpNeoWH0uzbU5w@public.gmane.org>,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH] net: sk == 0xffffffff fix - not for commit
Date: Tue, 10 Dec 2013 07:55:02 +0100 [thread overview]
Message-ID: <52A6BAC6.4090407@samsung.com> (raw)
In-Reply-To: <1386603119.30495.331.camel-XN9IlZ5yJG9HTL0Zs8A6p/gx64E7kk8eUsxypvmhUTTZJqsBc5GL+g@public.gmane.org>
W dniu 09.12.2013 16:31, Eric Dumazet pisze:
> On Mon, 2013-12-09 at 12:47 +0100, Andrzej Pietrasiewicz wrote:
>> NOT FOR COMMITTING TO MAINLINE.
>>
>> With g_ether loaded the sk occasionally becomes 0xffffffff.
>> It happens usually after transferring few hundreds of kilobytes to few
>> tens of megabytes. If sk is 0xffffffff then dereferencing it causes
>> kernel panic.
>>
>> This is a *workaround*. I don't know enough net code to understand the core
>> of the problem. However, with this patch applied the problems are gone,
>> or at least pushed farther away.
>
> Is it happening on SMP or UP ?
UP build, S5PC110
>
> Crash should happen earlier in __inet_lookup_established()
>
>
>
AP
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next prev parent reply other threads:[~2013-12-10 6:55 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-09 11:47 [PATCH] net: sk == 0xffffffff fix - not for commit Andrzej Pietrasiewicz
2013-12-09 15:31 ` Eric Dumazet
[not found] ` <1386603119.30495.331.camel-XN9IlZ5yJG9HTL0Zs8A6p/gx64E7kk8eUsxypvmhUTTZJqsBc5GL+g@public.gmane.org>
2013-12-10 6:55 ` Andrzej Pietrasiewicz [this message]
[not found] ` <52A6BAC6.4090407-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2013-12-10 14:25 ` Eric Dumazet
2014-01-16 15:21 ` Andrzej Pietrasiewicz
2014-01-16 16:29 ` Eric Dumazet
2014-01-17 12:18 ` Andrzej Pietrasiewicz
2014-01-17 12:47 ` Andrzej Pietrasiewicz
[not found] ` <1386589672-5830-1-git-send-email-andrzej.p-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2014-01-17 0:01 ` Andrew Ruder
2014-01-24 13:38 ` Andrew Ruder
2014-01-24 14:15 ` Andrew Ruder
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