Date: Mon, 27 Mar 2000 01:17:40 +0200 (CEST) From: Bart van Leeuwen <bart@ixori.demon.nl> To: Dave Boers <djb@wit389306.student.utwente.nl> Cc: freebsd-smp@freebsd.org Subject: Re: SMP and vn Message-ID: <Pine.BSF.4.21.0003270116040.480-100000@isengard.ixori.demon.nl> In-Reply-To: <20000326153003.A413@relativity.student.utwente.nl>
next in thread | previous in thread | raw e-mail | index | archive | help
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
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.BSF.4.21.0003270116040.480-100000>