From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from intro.peace.co.nz (intro.peace.co.nz [202.14.141.227]) by dsl2.external.hp.com (Postfix) with ESMTP id 1C717482A for ; Thu, 9 May 2002 16:42:48 -0600 (MDT) From: "James Braid" To: "'Grant Grundler'" Cc: Subject: RE: [parisc-linux] Re: Dodgy SCSI in L2000 Date: Fri, 10 May 2002 10:46:17 +1200 Message-ID: <00b001c1f7ab$571903d0$5e01000a@bongo> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" In-Reply-To: <20020509165445.7A515482A@dsl2.external.hp.com> Sender: parisc-linux-admin@lists.parisc-linux.org Errors-To: parisc-linux-admin@lists.parisc-linux.org List-Help: List-Post: List-Subscribe: , List-Id: parisc-linux developers list List-Unsubscribe: , List-Archive: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 > The fault was caused at 0x0000000010108fe0 - I need to see the > matching vmlinux and System.map to determine where this is in > the code. > Ah, mind if send you the vmlinux and System.map off-list? > When the box freezes, do "tc" from GSP. On reboot, at PDC prompt > type "ser pim" to get the state of the machine when it was TC'd. > Once you've saved the PIM dump, it's good to clear PIM. > (iirc, "ser clearpim") > Again, save matching Sysytem.map and vmlinux. > > IIRC, setting _SYNC parameter to 10 is equivalent to "fast". Okay, I will try that and put a new kernel in. > oic. In cases like this, we have to disable Stack Dumping since > it data page faults. I suspect that's what's happened in the > previous dumps too. You can disable stack dumps by changing "#if 1" > to "#if 0" on line 149 (show_stack()) in > arch/parisc/kernel/traps.c. I will disable that as well and put a new kernel in. > BTW, typically this msg means a kernel driver is attempting > to directly > access user space data instead of copying the data into kernel > space. That sounds nasty... > > so I cranked it up to dbench 100. That crashed nicely with > this panic: > > > > Dumping Stack from 0x0000000056390000 to 0x0000000056390000: > > > > Kernel Fault: Code=15 regs=0000000046390000 > > (Addr=0000000056388018) > > did you get the "Stack pointer and cr30 do not correspond!" > msg before this? Yep, I did get the "Stack pointer..." stuff before this, I left it off the email though. > Me either since I've not seen this problem. This does sound like > the SCSI interface driver is hitting a corner case and dying there. > But that's just a SWAG. > > I'll have to get dbench and try it on the a500 when that's > available. Cool. Thanks, James. -----BEGIN PGP SIGNATURE----- Version: PGP 7.1.1 iQA/AwUBPNr8OFW+bhIOiSqWEQLoTwCeOG3NSZzK01Aq1w+tz7R421fs9xgAoPbb 9VCHtaEiG6tTKElsrWsPMiad =6qMg -----END PGP SIGNATURE-----