Date: Mon, 11 Jan 1999 16:49:50 +0900 From: Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp> To: mjacob@feral.com Cc: Mike Smith <mike@smith.net.au>, alpha@FreeBSD.ORG Subject: Re: complete lockup under large I/O? Message-ID: <19990111164950Z.simokawa@sat.t.u-tokyo.ac.jp> In-Reply-To: Your message of "Sun, 10 Jan 1999 23:37:38 -0800 (PST)" <Pine.LNX.4.04.9901102337120.16348-100000@feral-gw> References: <Pine.LNX.4.04.9901102337120.16348-100000@feral-gw>
next in thread | previous in thread | raw e-mail | index | archive | help
mjacob> I'll try, but last I heard BRK didn't work on serial lines. Did you add "options BREAK_TO_DEBUGGER" to config file? It works mostly for me. mjacob> On Sun, 10 Jan 1999, Mike Smith wrote: mjacob> mjacob> > > mjacob> > > I have a test script/program that repeatedly reads mjacob> > > or writes a same spot on a device using progressively mjacob> > > larger blocksizes. mjacob> > > mjacob> > > I was using 3 8GB disks ccd'd together on a AlphaPC164 and the mjacob> > > the system completely froze when it went about 1MB blocksizes. mjacob> > > mjacob> > > Anyone have a notion about this? mjacob> > mjacob> > You may be seeing a deadlock on resource starvation; it'd be really mjacob> > interesting to see the output of 'ps' if you can get into DDB. I sometimes have similar problem. In such case, ps shows many process are waiting at vmpfw or ppwait state. /\ Hidetoshi Shimokawa \/ simokawa@sat.t.u-tokyo.ac.jp PGP public key: finger -l simokawa@sat.t.u-tokyo.ac.jp To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?19990111164950Z.simokawa>