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SubjectRe: attempt to access beyond end of device
Could you retry your tests with some application other than X eating up 20Meg
of your RAM.

I get these same problems with an IDE system when my machine swaps during
heavy I/O.

--
Jeffrey Hundstad

Robert Johannes wrote:

> SNIPPET####################################################
>
> ncr53c875-0-<0,0>: phase change 2-7 6@00fbc038 resid=1.
> attempt to access beyond end of device
> 08:04: rw=0, want=1414745929, limit=6197248
> attempt to access beyond end of device
> 08:04: rw=0, want=538976289, limit=6197248
> attempt to access beyond end of device
> 08:04: rw=0, want=538976289, limit=6197248
>
> SNIPPET####################################################
>
> That was just a snippet of the kind of errors I'm getting. Ok, I know
> that for those of you who have been following the above topic are probably
> getting tired of it, but I live with this situation everyday, and have
> some insights I would like to air, that I've not seen aired yet (unless I
> missed something; I know I did, I just don't know what).
>
> My system hardware is as follows: AMD k62 300, with Tekram DC390F scsi
> card (with seagate ST39173WC), matrox G200 AGP card, FIC PA-2013
> mother board with 1mb cache, DEC500 ethernet and 64mb memory. This
> hardware drives redhat 5.2, kernel 2.0.36.
>
> I've run kernels 2.0.36 through 2.2.13 with above configuration, and still
> gotten those errors and file corruption.
>
> I've been running redhat 5.2 on this system, with slightly varying
> hardware configuration, for just over a year now. I ONLY started getting
> the above errors and file corruption in late October '99, which is when I
> switched my vga hardware AND software, from using PCI S3_Virge/4mbram and
> XF86-3.3.3 to using matrox AGP G200/8mbram with XF86-3.3.5. One time I
> came back home, to find my system's boot sector wiped out, so I had to
> re-install the distribution (lackily, I had backed-up my system).
>
> I've observed that I only get file corruption and the above errors when
> I'm running in X and the system is fairly busy, say, when I'm compiling
> something, or doing semi-intensive disk i/o. To test this theory, I
> embarked on compiling glibc-2.1.2 and the latest version of gcc. I
> compiled glibc while in console mode (no x running) without a single
> glitch. I rebooted the system (just to use a fresh system) so I can
> compile in X windows, and sure enough, about midway through the compile of
> glibc, I got filesystem corruption and the above errors. I did the same
> thing with gcc, and got similar results. Whenever I compile anything
> fairly large in X, I get the above errors.
>
> It is this observation that has led me to post to this list, at least to
> point out that I've a pattern here that is being caused by a specific
> combination of interactions; i.e, using x and doing fairly intensive disk
> i/o. Could it be the XF86-3.3.5 driver that's the cause of this problem?
> Could it be conflict between XF86-3.3.5 and the scsi driver in the kernel,
> conflict between the AGP and SCSI card.
>
> My observations have not been scientific, so I'm not claiming anything.
> I'm simply stating observations that I think might be helpful in narrowing
> down the problem. If this problem has been solved, please notify me of
> what and where the fix is.
>
> Thanks
>
> Robert Johannes
>
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