Date: Thu, 6 Apr 2000 16:16:04 +0930 From: Greg Lehey <grog@lemis.com> To: Soren Schmidt <sos@freebsd.dk> Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/dev/vinum vinuminterrupt.c Message-ID: <20000406161604.J73669@freebie.lemis.com> In-Reply-To: <200004060641.IAA90179@freebsd.dk> References: <200004060303.UAA06576@freefall.freebsd.org> <200004060641.IAA90179@freebsd.dk>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thursday, 6 April 2000 at 8:41:49 +0200, Søren Schmidt wrote: > It seems Greg Lehey wrote: >> grog 2000/04/05 20:03:32 PDT >> >> Modified files: >> sys/dev/vinum vinuminterrupt.c >> Log: >> complete_rqe: Remove a race condition in RAID-4 and RAID-5 where a >> request could be deallocated before the top half had finished >> issuing it. The problem seems only to happen with IDE drives >> and vn devices, but theoretically it could happen with any >> drive. This is the most important part of a possible series >> of fixes designed to remove race conditions without locking >> out interrupts for longer than absolutely necessary. >> >> Reported-by: sos >> Fix-supplied-by: dillon > > > Cool!, I'll throw my server at it as soon as I get home today... Good. I'm not 100% sure that this fix alone will work, but I don't want to overdo things, because it can have an adverse effect on performance. I'll do some tests on vnode devices here; that should have the same effect. Greg -- Finger grog@lemis.com for PGP public key See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20000406161604.J73669>