From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex Samad Subject: Re: kernel oops when system under network stress Date: Thu, 16 Oct 2008 16:08:10 +1100 Message-ID: <20081016050810.GA8240@samad.com.au> References: <20081016030416.GA5551@samad.com.au> <20081015.215536.242281148.davem@davemloft.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="HcAYCG3uE/tztfnV" Cc: linux-net@vger.kernel.org, netdev@vger.kernel.org, herbert@gondor.apana.org.au To: David Miller Return-path: Content-Disposition: inline In-Reply-To: <20081015.215536.242281148.davem@davemloft.net> Sender: linux-net-owner@vger.kernel.org List-Id: netdev.vger.kernel.org --HcAYCG3uE/tztfnV Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Oct 15, 2008 at 09:55:36PM -0700, David Miller wrote: > From: Alex Samad > Date: Thu, 16 Oct 2008 14:04:16 +1100 >=20 > [ Kernel network developers don't read linux-net, which is for > user discussion. They read netdev@vger.kernel.org instead > which I've added to the CC:, please maintain this in all > follow ups and replys. ] >=20 > > I seems to be getting lots of crashes when my system is under network > > load, I was moving 1/4T of data over a 1G link and I got lots and lots > > of these >=20 > What kernel version? Sorry I put this at the bottom of the email. its a stock debian 2.6.26 (-8) kernel, nothing special on my side >=20 > How is your system configured? lspci -s 0a.0 -vv 00:0a.0 Ethernet controller: nVidia Corporation Device 0760 (rev a2) Subsystem: Giga-byte Technology Device e000 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=3Dfast >TAbort- SERR- Kernel driver in use: forcedeth Kernel modules: forcedeth I have eth0 bridged to brhme1. I have seen this problem when doing rsync/ssh of large files and whilst doing transfer of files with nfs (udp & tcp thought more issues arise with udp), also tried different mtu's as well and that was worst of all. The thing to note was (for example), when I was doing a nfs transfer, it would not be nfs that would crash, it would be other network based application that would cause the problem, for ex sshd, apache etc >=20 > Otherwise it is harder for us to analyze this report. >=20 > Thanks. >=20 [snip] > > somebody if it would help. > >=20 > > Is this a bug or ? > >=20 > > I am running debian 2.6.26-8=20 > > Linux max 2.6.26-1-amd64 #1 SMP Thu Oct 9 14:16:53 UTC 2008 x86_64 > > GNU/Linux > >=20 > >=20 > > I have eth0 bridges to brhme1 (so that I can attach virtual box machines > > there - none attached currently) > >=20 > > and I have some firewall rules as well. That really about it to the > > changes I have made > >=20 > >=20 > >=20 > > Thanks > > Alex=20 > >=20 > > PS can you cc me on the replay, in the process of registering > >=20 > >=20 > > --=20 > > "Columbia carried in its payroll classroom experiments from some of our= students in America." > >=20 > > - George W. Bush > > 02/03/2003 > > Bethesda, MD > -- > To unsubscribe from this list: send the line "unsubscribe linux-net" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >=20 --=20 "If there's a leak out of my administration, I want to know who it is. If t= he person has violated law, that person will be taken care of." - George W. Bush 09/30/2003 Washington, DC Commenting on the CIA leak that he and Cheney later admitted they approved --HcAYCG3uE/tztfnV Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkj2zDYACgkQkZz88chpJ2MScgCguQIRw+TlNIsKZP7//Xw+12YI aH8AoMIeMBTxDURVcN/yP9EswAmrXYox =rvPy -----END PGP SIGNATURE----- --HcAYCG3uE/tztfnV--