Date: Thu, 16 Nov 2000 11:50:25 -0800 (PST) From: John Baldwin <jhb@FreeBSD.org> To: (Christian Weisgerber) <naddy@mips.inka.de> Cc: freebsd-alpha@FreeBSD.org Subject: Re: SMPng stability Message-ID: <XFMail.001116115025.jhb@FreeBSD.org> In-Reply-To: <8v1245$7d8$1@kemoauc.mips.inka.de>
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On 16-Nov-00 Christian Weisgerber wrote: > Andrew Gallatin <gallatin@cs.duke.edu> 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 <jhb@FreeBSD.org> -- 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
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