From mboxrd@z Thu Jan 1 00:00:00 1970 From: pollockd@magma.ca Subject: Re: Realtek 8169 Lock-ups Date: Tue, 13 Jan 2004 11:55:41 -0500 Sender: netdev-bounce@oss.sgi.com Message-ID: <1074012941.5886.12.camel@localhost> References: <200401111623.i0BGNg3O028990@webmail1.magma.ca> <4001A41C.3070205@pobox.com> Reply-To: dpollock@acm.org Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-AiLDoAMaC7ybRbg9RUED" Cc: Francois Romieu , netdev@oss.sgi.com, damouse@ntlworld.com, brad@mainstreetsoftworks.com, kinetik@orcon.net.nz Return-path: To: Jeff Garzik In-Reply-To: <4001A41C.3070205@pobox.com> Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org --=-AiLDoAMaC7ybRbg9RUED Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Sun, 2004-01-11 at 14:29, Jeff Garzik wrote: > Douglas Pollock wrote: > The kernel comes with "pktgen" which is a free packet generator you can=20 > use for stressing kernels and LANs. There is also ttcp, nttcp, various=20 > filesystems tests over NFS (such as bonnie++), various block device=20 > tests over nbd (network block device), ... Thanks for that. I should have remembered the packet generator. Using pktgen, I am able to reproduce the problem. HARDWARE: Intel P4 with hyper-threading enabled Realtek 8169 (rev. 10) Switched 100Mbps network A second machine on the same network (to receive test packets) SOFTWARE: Kernel 2.6.0 or 2.6.1-rc1 (possibly others), with SMP for 2 processors, Realtek 8169 driver, and packet generator STEPS TO REPRODUCE: 1.) Set up the ipg script to send to the second machine on the 8169 NIC. 2.) pgset pkt_size 9014 3.) pg OBSERVATIONS: Soon after step #3, the 8169 NIC will stop responding (note: the netdev watchdog reports a timeout in dmesg). No packets get through. However, everything else still works. Disabling SMP in the kernel fixes this problem. Doug. --=-AiLDoAMaC7ybRbg9RUED Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQBABCMLLhh1LVU8SusRAtTXAJoCQdN5E8uvmbm6LeDVBfZD6DJ/DwCgrIsb wWWlcJD8EzfThXM3bVUX3Kk= =fKX6 -----END PGP SIGNATURE----- --=-AiLDoAMaC7ybRbg9RUED--