Date: Mon, 4 Feb 2002 09:30:02 -0800 (PST) From: Michael Vasilenko <acid@dg.net.ua> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/34613: kernel panic in ufsdirhash_lookup Message-ID: <200202041730.g14HU2p14865@freefall.freebsd.org>
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The following reply was made to PR kern/34613; it has been noted by GNATS. From: Michael Vasilenko <acid@dg.net.ua> To: David Malone <dwmalone@maths.tcd.ie> Cc: <FreeBSD-gnats-submit@freebsd.org> Subject: Re: kern/34613: kernel panic in ufsdirhash_lookup Date: Mon, 4 Feb 2002 19:26:51 +0200 (EET) On Mon, 4 Feb 2002, David Malone wrote: DM> > DM> Actually, the offset 33571596 in hex is 0x200430c. I wonder if that DM> > DM> is a top bit which got set in the offset by accident. Do you know DM> > DM> which directory it would have been searching for "runiv-month.png.meta" DM> > DM> in? Could you "ls -ld" it? DM> DM> > thunderbird:/var/mrtg# ls -l univ-month.png.meta DM> > -rw-r--r-- 1 root www 39 Feb 4 17:12 univ-month.png.meta DM> > thunderbird:/var/mrtg# ls -ld DM> > drwxr-xr-x 2 root www 97792 Feb 4 18:42 . DM> DM> OK - If I remove the top bit from 0x200430c, then I get 17164 DM> decimal, which looks like a valid offset in that directory. My guess DM> is that something is causing random bit flips in memory and this DM> the cause of the crashes. Could you post the output of "hd -s 17100 DM> -l 128 ." in that directory, that way we can see if 17164 is the DM> right offset. DM> DM> If it does look like random bit flips then we'll have to figure out DM> if it is a software or hardware problem. 000042cc 72 2e 70 6e 67 00 00 00 21 60 1b 00 1c 00 08 11 |r.png...!`......| 000042dc 75 6e 69 76 2d 64 61 79 2e 70 6e 67 2e 6d 65 74 |univ-day.png.met| 000042ec 61 00 35 cc 22 60 1b 00 1c 00 08 12 75 6e 69 76 |a.5."`......univ| 000042fc 2d 77 65 65 6b 2e 70 6e 67 2e 6d 65 74 61 00 cc |-week.png.meta..| 0000430c 23 60 1b 00 1c 00 08 13 75 6e 69 76 2d 6d 6f 6e |#`......univ-mon| 0000431c 74 68 2e 70 6e 67 2e 6d 65 74 61 00 24 60 1b 00 |th.png.meta.$`..| 0000432c 1c 00 08 12 75 6e 69 76 2d 79 65 61 72 2e 70 6e |....univ-year.pn| 0000433c 67 2e 6d 65 74 61 00 cc 26 60 1b 00 18 00 08 0e |g.meta..&`......| 0000434c -- Michael Vasilenko To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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