From owner-freebsd-alpha Thu Nov 16 11:50: 4 2000 Delivered-To: freebsd-alpha@freebsd.org Received: from pike.osd.bsdi.com (pike.osd.bsdi.com [204.216.28.222]) by hub.freebsd.org (Postfix) with ESMTP id 04CC037B479 for ; Thu, 16 Nov 2000 11:50:01 -0800 (PST) Received: from laptop.baldwin.cx (john@jhb-laptop.osd.bsdi.com [204.216.28.241]) by pike.osd.bsdi.com (8.11.0/8.9.3) with ESMTP id eAGJnlB64715; Thu, 16 Nov 2000 11:49:47 -0800 (PST) (envelope-from jhb@FreeBSD.org) Message-ID: X-Mailer: XFMail 1.4.0 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <8v1245$7d8$1@kemoauc.mips.inka.de> Date: Thu, 16 Nov 2000 11:50:25 -0800 (PST) From: John Baldwin To: (Christian Weisgerber) Subject: Re: SMPng stability Cc: freebsd-alpha@FreeBSD.org Sender: owner-freebsd-alpha@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On 16-Nov-00 Christian Weisgerber wrote: > Andrew Gallatin wrote: > >> John Baldwin's most recent commits (the ones leading up to WITNESS >> working) seem to have improved the stability SMPng on alpha. I'd urge >> anybody who is having -current stability problems on alpha to update >> your sources and try a new kernel. >> >> Heck, this might even help the PC164 situation.. > > Well... It didn't get stuck while probing for SCSI devices. It > actually booted into single user mode. Just to do something from > there I started an fsck of a scratch partition, wedging the box > within five seconds or so. Can you stick DDB in your kernel and break into DDB and get a backtrace when it hangs? Also, for the record, can you capture the 'ps' output as well as the output of 'x/x,10 Giant' and 'x/x,10 sched_lock'. Note that ddb is quirky, and you might have to do 'x Giant' before the 'x/x,10' to get it to actually examine Giant and the same for sched_lock. Doing this over serial console would probably make your life a lot easier. :-P -- John Baldwin -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.baldwin.cx/~john/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message