From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: "Sami Pietikäinen" <Sami.Pietikainen@wapice.com>
Cc: "linux-rt-users@vger.kernel.org" <linux-rt-users@vger.kernel.org>,
Jouko Haapaluoma <jouko.haapaluoma@wapice.com>
Subject: Re: Crash in TCP/IP stack
Date: Fri, 24 Jan 2014 13:56:39 +0100 [thread overview]
Message-ID: <20140124125639.GC10264@linutronix.de> (raw)
In-Reply-To: <EBD2DE4ADA47B94E831AED12A4B0CADA76D06990@edb1.wapice.localdomain>
* Sami Pietikäinen | 2013-12-17 10:21:33 [+0000]:
>Hello,
Hi Sami,
>We have run into a crash in the TCP/IP stack when doing torture tests on our devices.
>We have been able to reproduce this issue with Atmel SAMA5D35-EK using 3.6.9-rt21,
>3.10.20-rt17 and 3.12.5-rt6 kernels and using Xilinx Zynq Zedboard with 3.8.13-rt15 kernel.
>Unable to handle kernel NULL pointer dereference at virtual address 00000010
>CPU: 0 PID: 7292 Comm: wget Not tainted 3.12.5-rt6-custom #1
>[<c01989fc>] (__ip_make_skb+0x200/0x280) from [<c0198acf>] (ip_push_pending_frames+0xf/0x24)
>[<c0198acf>] (ip_push_pending_frames+0xf/0x24) from [<c0198cf5>] (ip_send_unicast_reply+0x179/0x198)
>[<c0198cf5>] (ip_send_unicast_reply+0x179/0x198) from [<c01a992d>] (tcp_v4_send_reset+0x10d/0x138)
>[<c01a992d>] (tcp_v4_send_reset+0x10d/0x138) from [<c01aa491>] (tcp_v4_do_rcv+0x6d/0x168)
>[<c01aa491>] (tcp_v4_do_rcv+0x6d/0x168) from [<c0175683>] (release_sock+0x63/0xe0)
>[<c0175683>] (release_sock+0x63/0xe0) from [<c019f81b>] (tcp_close+0x12b/0x33c)
>[<c019f81b>] (tcp_close+0x12b/0x33c) from [<c01b6b61>] (inet_release+0x25/0x44)
>[<c01b6b61>] (inet_release+0x25/0x44) from [<c01731db>] (sock_release+0xf/0x5c)
>[<c01731db>] (sock_release+0xf/0x5c) from [<c01733ed>] (sock_close+0x9/0xc)
>[<c01733ed>] (sock_close+0x9/0xc) from [<c0065259>] (__fput+0x5d/0x17c)
>[<c0065259>] (__fput+0x5d/0x17c) from [<c002469b>] (task_work_run+0x53/0x78)
>[<c002469b>] (task_work_run+0x53/0x78) from [<c000e3ab>] (do_work_pending+0x5f/0x74)
>[<c000e3ab>] (do_work_pending+0x5f/0x74) from [<c000cb53>] (work_pending+0x9/0x1a)
Just that I have it tagged here properly. This bug seems to exist
since v3.6-rt and Nicholas Mc Guire posted a fix for it.
Sebastian
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next prev parent reply other threads:[~2014-01-24 12:56 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-17 10:21 Crash in TCP/IP stack Sami Pietikäinen
2014-01-24 12:56 ` Sebastian Andrzej Siewior [this message]
2014-01-25 11:44 ` Nicholas Mc Guire
2014-01-27 7:20 ` Sami Pietikäinen
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