Date: Fri, 2 Mar 2007 12:33:27 -0500 From: John Baldwin <jhb@freebsd.org> To: Kris Kennaway <kris@obsecurity.org> Cc: cvs-src@freebsd.org, Scott Long <scottl@samsco.org>, src-committers@freebsd.org, cvs-all@freebsd.org Subject: Re: cvs commit: src/sys/kern kern_intr.c Message-ID: <200703021233.28346.jhb@freebsd.org> In-Reply-To: <20070302172817.GA29231@xor.obsecurity.org> References: <200703021701.l22H1k3M071057@repoman.freebsd.org> <45E85B52.7000107@samsco.org> <20070302172817.GA29231@xor.obsecurity.org>
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On Friday 02 March 2007 12:28, Kris Kennaway wrote: > On Fri, Mar 02, 2007 at 10:13:54AM -0700, Scott Long wrote: > > John Baldwin wrote: > > >jhb 2007-03-02 17:01:45 UTC > > > > > > FreeBSD src repository > > > > > > Modified files: > > > sys/kern kern_intr.c > > > Log: > > > - Don't do the interrupt storm protection stuff for software interrupt > > > handlers. > > > - Use pause() when throtting during an interrupt storm. > > > > > > Reported by: kris (1) > > > > > > Revision Changes Path > > > 1.142 +3 -2 src/sys/kern/kern_intr.c > > > > Actually, having this helped detect a problem with a CAM driver. > > > > Scott > > I saw it under normal operation when doing a lot of loopback traffic > on an 8-core. Also, if it ever kicked in for softclock, the system would deadlock. -- John Baldwin
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