Date: Tue, 26 Oct 1999 16:17:40 -0700 From: Ed Hall <edhall@screech.weirdnoise.com> To: dg@root.com Cc: hackers@FreeBSD.ORG, Joe McGuckin <joe@monk.via.net>, Lew Payne <lew@lppi.com>, edhall@yahoo-inc.com Subject: Re: fxp related kernel panic Message-ID: <199910262317.QAA28528@screech.weirdnoise.com> In-Reply-To: Your message of "Tue, 26 Oct 1999 13:19:45 PDT." <199910262019.NAA23488@implode.root.com>
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We have an application under development at Yahoo! which can provoke a similar crash on an N440BX-based system running 3.3-RELEASE in about half an hour. The application is both disk and network intensive--under test both are pretty close to being maxed out. Although crashes most frequently occur during fxp interrupts, this is not always the case; what IS always the case is that stack variables are getting clobbered. We've been able to compare identical configurations except for SCSI vs. IDE. Only the SCSI (using the on-board Symbios controller) system has failed so far. This failure has been replicated on several boxes (it's not just a single bad board). A 2.2.8 system with identical hardware (including SCSI) running the same application doesn't seem to be failing. More testing is required to establish this pattern with certainty, however. Peter Wemm is up here in Santa Clara and is studying the problem as I write. More information will be upcoming... -Ed Hall edhall@yahoo-inc.com edhall@weirdnoise.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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