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- Path: sparky!uunet!gatech!darwin.sura.net!mips!decwrl!bu.edu!inmet!dylan!newbie
- From: newbie@dylan.camb.inmet.com (Chris Newbold)
- Newsgroups: comp.os.linux
- Subject: Re: Buffer corruption problems.
- Message-ID: <1992Aug14.141746.10717@inmet.camb.inmet.com>
- Date: 14 Aug 92 14:17:46 GMT
- References: <16078@ucdavis.ucdavis.edu> <1992Aug13.163854.21617@midway.uchicago.edu> <BURLEY.92Aug13153840@geech.gnu.ai.mit.edu>
- Sender: news@inmet.camb.inmet.com
- Organization: Intermetrics, Inc.
- Lines: 48
- Nntp-Posting-Host: dylan
-
- In article <BURLEY.92Aug13153840@geech.gnu.ai.mit.edu> burley@geech.gnu.ai.mit.edu (Craig Burley) writes:
- >In article <1992Aug13.163854.21617@midway.uchicago.edu> ace3@quads.uchicago.edu (Tony 'LLama' Acero) writes:
- >
- > I have no idea what's going on and would appreciate any input! :-)
- > (The smiley is to indicate I'm not complaining and half-expecting
- > that I've done something bone-headed)
- >
- >I'm not sure about your problem or the person's to whose post you followed up,
- >but...
- >
- >...I believe there is a bug in Linux that has the following behavior:
- >
- >- causes Linux to "misread" one 1024KB chunk of data from a disk-based file
- > so that what your app ends up with is some _other_ 1024KB chunk
- > (apparently from the same file)
- >
- >- occurs only during very heavy disk access, such as megabytes accessed
- > continually
- >
- >- is intermittent, but happens enough to reproduce fairly easily
- >
- >- might be SCSI-related (I have a SCSI system) but, based on responses I've
- > gotten from others saying they've seen the same behavior, probably isn't
- >
- >- is still in 0.97 and perhaps happens somewhat more often there (though of
- > course it's hard to measure this)
-
- Yep. I've seen this too. My system is running off SCSI disks. I'd agree
- with everthing listed above and add:
-
- - It can happen on WRITES as well.
-
- Occasionally when I'm rebuilding the kernel, make will die with some
- horrid error like it can no longer find the makefile it was working from.
- Shorty thereafter, anything which accesses the disk seg. faults and dies.
-
- When I bring the system back up, the filesystem is hosed. Usually the
- superblock is scrambled so fsck just refuses to look at the drive.
-
- Not good.
-
- -Chris
-
- --
- ---- Chris Newbold ---- > "If you fool around with a thing for very long you <
- Intermetrics, Inc. > will screw it up." <
- Opinions and statements expressed are MINE and do NOT represent my employer
- newbie@inmet.camb.inmet.com
-