netdev - Re: WARNING: at net/ipv4/tcp.c:1598 tcp

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 20 Aug 2012 12:20:50 -0400
From:	Dave Jones <davej@...hat.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	netdev@...r.kernel.org,
	Fedora Kernel Team <kernel-team@...oraproject.org>
Subject: Re: WARNING: at net/ipv4/tcp.c:1598 tcp_recvmsg+0x641/0xd30()

On Fri, Aug 10, 2012 at 10:40:18PM +0200, Eric Dumazet wrote:
 
 > >  >  > backtrace:
 > >  >  > :WARNING: at net/ipv4/tcp.c:1598 tcp_recvmsg+0x641/0xd30()
 > > 
 > > We're getting more reports of this happening too.
 > 
 > Might be a driver issue with LRO / GRO/ TCP coalescing
 > 
 > So we need a _lot_ of details.

I looked over all the existing reports of this. It's a bit of a mess.
It seems to affect multiple drivers.
A big problem is that the network stack seems to get in a really screwed up state
when this happens, and the automated bug filer files these corrupted traces.

A secondary problem is that because these are automated reports, not all users
are responsive to answer questions afterwards...

Anyway, what I've gathered so far..

3.4-rc	i2400m_usb      https://bugzilla.redhat.com/show_bug.cgi?id=807114

unknown (mangled traces) https://bugzilla.redhat.com/show_bug.cgi?id=841016

possibly e1000e (also mangled) https://bugzilla.redhat.com/show_bug.cgi?id=841769

3.4.4	unknown (mangled)	https://bugzilla.redhat.com/show_bug.cgi?id=849275
 (same guy, probably e1000e)	https://bugzilla.redhat.com/show_bug.cgi?id=849276

3.5.0	r8712u  https://bugzilla.redhat.com/show_bug.cgi?id=845853

3.5.0	unknown https://bugzilla.redhat.com/show_bug.cgi?id=846991


any ideas on any additional debug printk's we could add ?

	Dave

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html