Date: Mon, 27 Mar 2000 02:53:49 -0800 (PST) From: =?iso-8859-1?q?Tommy=20Hallgren?= <thallgren@yahoo.com> To: Bart van Leeuwen <bart@ixori.demon.nl>, Dave Boers <djb@wit389306.student.utwente.nl> Cc: freebsd-smp@freebsd.org Subject: Re: SMP and vn Message-ID: <20000327105349.4502.qmail@web120.yahoomail.com>
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I've read about Abit BP6 problems(SMP+Idle==hang) on Linux-kern, but thought it was a Linux-related problem. :-/ Mvh: Tommy 'd-bug' Hallgren --- Bart van Leeuwen <bart@ixori.demon.nl> skrev: > just to let you know that I 'reproduced' this without vn in my > kernel.. tho it happens less often it seems. > > Bart van Leeuwen > ----------------------------------------------------------- > mailto:bart@ixori.demon.nl - http://www.ixori.demon.nl/ > ----------------------------------------------------------- > > On Sun, 26 Mar 2000, Dave Boers wrote: > > > It is rumoured that Bart van Leeuwen had the courage to say: > > > In any case, it looks to me that SMP + vnode + heavy load == freeze. > > > > For me: SMP + sit_and_wait_for_5_days_or_so == freeze. > > > > > Is there anyone with simular experience? is there anything documented > > > about using vn on smp systems? > > > > I've got the same symptoms. I don't have the vn device in my kernel though > > and I can't seem to trigger the hang with a heavy load. I am running Abit > > BP6 with two 400 Mhz Celerons (not overclocked) and 128 Mb of RAM. > > > > I haven't been able to get an uptime > 10 days since Christmas or so. I > > used to track 4.0-current, but now I'm running RELENG_4; with the same > > problems still. > > > > The hangs are _complete_. There's no getting into the debugger, the system > > won't respond to console/serial terminal/network/whatever. > > > > I tried to duplicate the situation by configuring a single processor > > Pentium II machine with _very_ similar hardware and the exact same kernel > > configuration (it has 384 Mb ram though). That one has now been running for > > 16 days without a problem, so it definitely seems SMP related. > > > > I turned off softupdates on all my filesystems, but it doesn't seem related > > to the hangs. > > > > Right now I am running with a reduced kernel. I deleted the pcm and ata > > drivers (system is now running off scsi only - Tekram 390U2W) and I also > > alltogether removed softupdates from the kernel as well as anything else > > that wasn't absolutely necessary. > > > > In about 5-10 days I'll know wether this has helped. > > > > If anyone has any further insights into this huge problem, I'd love to hear > > about it! > > > > Regards, > > > > Dave. > > > > -- > > Dave Boers < djb @ relativity . student . utwente . nl > > > Physics graduate student && unix/BSD sysadmin - University of Twente > > Public key: ftp://relativity.student.utwente.nl/pub/pgpkeys/djb.asc > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-smp" in the body of the message > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-smp" in the body of the message > ===== Tommy Hallgren(tommy@frontpartner.com) Briljantg. 31, SE-421 49, Göteborg Tel.: +46 (0)709 - 312 404 (GSM) Tel.: +46 (0)31 - 47 65 28 (Home) __________________________________________________ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message
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