| 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
| ||
|
Date: Fri, 14 Dec 2007 15:26:59 -0500 From: Jeff Garzik <jgarzik@...ox.com> To: Stephen Hemminger <shemminger@...ux-foundation.org> CC: Peter Tyser <ptyser@...-inc.com>, netdev@...r.kernel.org Subject: Re: [PATCH] sky2: RX lockup fix Stephen Hemminger wrote: > I'm using a Marvell 88E8062 on a custom PPC64 blade and ran into RX > lockups while validating the sky2 driver. The receive MAC FIFO would > become stuck during testing with high traffic. One port of the 88E8062 > would lockup, while the other port remained functional. Re-inserting > the sky2 module would not fix the problem - only a power cycle would. > > I looked over Marvell's most recent sk98lin driver and it looks like > they had a "workaround" for the Yukon XL that the sky2 doesn't have yet. > The sk98lin driver disables the RX MAC FIFO flush feature for all > revisions of the Yukon XL. > > According to skgeinit.c of the sk98lin driver, "Flushing must be enabled > (needed for ASF see dev. #4.29), but the flushing mask should be > disabled (see dev. #4.115)". Nice. I implemented this same change in > the sky2 driver and verified that the RX lockup I was seeing was > resolved. > > Signed-off-by: Peter Tyser <ptyser@...-inc.com> > Signed-off-by: Stephen Hemminger <shemminger@...ux-foundation.org> > > --- > Original patch reformatted to remove line wrap. applied #upstream-fixes -- 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
Powered by blists - more mailing lists