Date: Tue, 30 Mar 1999 13:39:53 +0200 From: Ladavac Marino <mladavac@metropolitan.at> To: 'Soren Schmidt' <sos@freebsd.dk>, sobomax@altavista.net Cc: current@FreeBSD.ORG Subject: RE: UPDATE4: ATA/ATAPI driver new version available. Message-ID: <97A8CA5BF490D211A94F0000F6C2E55D097577@s-lmh-wi-900.corpnet.at>
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> -----Original Message----- > From: Soren Schmidt [SMTP:sos@freebsd.dk] > Sent: Tuesday, March 30, 1999 1:29 PM > To: sobomax@altavista.net > Cc: current@FreeBSD.ORG > Subject: Re: UPDATE4: ATA/ATAPI driver new version available. >=20 > It seems Maxim Sobolev wrote: > > > >New ata driver (cvsup'ed several minutes ago) locks my box solid > (only > >reset but ton can help). Bug is fully reproducible on my machine > (Toshiba Satellite Pro 445). > >I using the following command: dd if=3D/dev/zero of=3D/dev/ad0s2 > bs=3D1024k. It > >works several minutes then IDE led turns off and box freezes. > Interesting that > >when I looking at systat -vm measures, performance constantly > degrades from > >3.3MB/s to 2.5MB/s.=20 > >Bug exist either in single-user and in multi-user mode. Following is > relevant dmesg pieces from my dmesg output: >=20 > Hmm, are you sure you want to WRITE all those zeros to your disk ?? > However it should not hang before the end of disk is reached that is. > Have you tried reading all of the disk instead, does that hang ?? > The degradation is probably becuse the transferrate of the disk slows > down as you get closer to the center of the disk. > Have you anu idea on how much data is transferred ?? how long is it > running ?? [ML] Also, is there any swapping area on that slice? Because if there is and kernel has been told to use it (AFAIR swapon happens even in single user mode) you have just obliterated the kernel pages (kernel is pageable these days IIRC, at least the data if not the = code). /Marino > -S=F8ren >=20 >=20 > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-current" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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