Date: Wed, 17 Jan 2001 14:00:02 -0800 (PST) From: "Ronald F. Guilmette" <rfg@monkeys.com> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/24401: Advansys SCSI driver crashes random userland progs w/SIGPROF Message-ID: <200101172200.f0HM02207143@freefall.freebsd.org>
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The following reply was made to PR kern/24401; it has been noted by GNATS. From: "Ronald F. Guilmette" <rfg@monkeys.com> To: "Justin T. Gibbs" <gibbs@scsiguy.com> Cc: FreeBSD-gnats-submit@FreeBSD.ORG Subject: Re: kern/24401: Advansys SCSI driver crashes random userland progs w/SIGPROF Date: Wed, 17 Jan 2001 13:50:40 -0800 In message <200101172004.f0HK4Hs03305@aslan.scsiguy.com>, you wrote: >> >>In message <200101171833.f0HIXLs02023@aslan.scsiguy.com>, you wrote: >> >>>Memory testors (other than the ones built in hardware) rarely find >>>flaky memory problems. Your best bet is to trace out memory and see >>>if the problem persists. >> >>I assume that you meant to say that I should "swap" out the memory for >>some other memory and then see what happens, yes? > >I meant "trade", but yes. OK. It has been done. I hate to say you told me so, but you told me so. The system in question had two (2) 128MB SDRAM DIMMs in it, so it was easy enough for me to re-run my tests with first one of those two DIMMs in the system, and then the other. I did that, and sure enough, my little test failed consistantly (3 times) with one of the two DIMMs installed, and it passed the test consistantly (3 times0 with the other DIMM installed. So yea, I guess you were right. I looks like the memory. And yea, the one pass of memtest-86 I ran on the bad one did not show anything wrong. Thanks for your help. Ok, so how does one cancel/retract a FreeBSD PR? P.S. Anybody want to buy a single DIMM of 128MB of (almost) PC100 memory cheap? I'm selling it at a STEEP discount. :-) P.P.S. I guess we now have a brand new memory testing method... Install and Advansys SCSI controller into a FreeBSD 4.2 system and then just `dd' zeros to some big SCSI drive. (1/2 :-) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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