| 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: Sun, 30 Sep 2007 11:05:17 -0400 From: Jeff Garzik <jeff@...zik.org> To: Paolo Ornati <ornati@...twebnet.it> CC: Alan Cox <alan@...rguk.ukuu.org.uk>, Tejun Heo <htejun@...il.com>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, linux-ide@...r.kernel.org Subject: Re: [PATCH] blacklist NCQ on Seagate Barracuda ST380817AS Paolo Ornati wrote: > On Sun, 30 Sep 2007 15:29:08 +0100 > Alan Cox <alan@...rguk.ukuu.org.uk> wrote: > >>> Seagate Barracuda ST380817AS has troubles with NCQ. For example, >>> unpacking a tarball on an XFS filesystem gives this: >>> >>> ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x2 frozen >>> ata1.00: cmd 61/40:00:29:a3:98/00:00:00:00:00/40 tag 0 cdb 0x0 data 32768 out >>> res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) >> What makes you sure that is an NCQ problem ? > > It goes away with: > echo 1 > /sys/block/sda/device/queue_depth > > I have this problem only with XFS, and even with XFS it goes away > mounting with "nobarrier"... This last is an interesting datapoint. I wonder if libata has a generic problem with NCQ + FLUSH CACHE. What happens if you enable the 'fua' module parameter? (libata.fua on kernel command line, if built in) Jeff - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists