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SubjectRe: Asus-a7v/Via-Vt8233 data corruption

Could you, David, and other people with corruption try this patch from
Andre?

--- linux-2.4.19-rc3-pristine/arch/i386/kernel/pci-pc.c.orig Tue Jul 23 21:39:42 2002
+++ linux-2.4.19-rc3-pristine/arch/i386/kernel/pci-pc.c Tue Jul 23 21:41:03 2002
@@ -1227,6 +1227,9 @@
pci_read_config_byte(d, PCI_REVISION_ID, &revision);

if (d->device == PCI_DEVICE_ID_VIA_8367_0) {
+ /* fix pci bus latency issues resulted by NB bios error */
+ pci_write_config_byte(d, PCI_LATENCY_TIMER, 0);
+
where = 0x95; /* the memory write queue timer register is
different for the KT266x's: 0x95 not 0x55 */
} else if (d->device == PCI_DEVICE_ID_VIA_8363_0 &&

On Sun, 21 Jul 2002, David Caplan wrote:

> [This is an email copy of a Usenet post to "linux.kernel"]
>
> Hello,
>
> I am having many problems with the asus a7v266 motherboard, and its IDE
> controller. It seems to be corrupting data transfers to and from my
> single 40 gb Quantum Fireball hd.
>
> I ran Robin Miller's Data Test Program (dt) from
> http://www.bit-net.com/~rmiller/dt.html. It reported errors after a few
> tests.
>
> I had DMA enabled via hdparm,
> I was running kernel 2.4.18.
>
> These occurrences seem to be common with my chipset, or others by
> VIA.
> I have been running the same motherboard for about 3/4 of a year,
> with none of these problems until last week, why would that be?
>
> Is this a bug in the motherboard? or is it the way Linux handles it?
>
> Anyways,here is the output of dt:
>
> # ./dt of=../test limit=1g min=500k max=2000k procs=2 log=dtlog runtime=1h
>
> --> Date: June 2nd, Version: 14.10, Author: Robin T. Miller <--
>
> Write Statistics (260):
> Current Process Reported: 1/2
> Total records processed: 1280 with min=512000, max=2048000, incr=512
> Total bytes transferred: 1073741824 (1048576.000 Kbytes, 1024.000 Mbytes)
> Average transfer rates: 12420380 bytes/sec, 12129.277 Kbytes/sec
> Number I/O's per second: 14.806
> Total passes completed: 0
> Total errors detected: 0/1
> Total elapsed time: 01m26.45s
> Total system time: 00m05.95s
> Total user time: 00m08.59s
>
> Write Statistics (261):
> Current Process Reported: 2/2
> Total records processed: 1280 with min=512000, max=2048000, incr=512
> Total bytes transferred: 1073741824 (1048576.000 Kbytes, 1024.000 Mbytes)
> Average transfer rates: 12423254 bytes/sec, 12132.084 Kbytes/sec
> Number I/O's per second: 14.810
> Total passes completed: 0
> Total errors detected: 0/1
> Total elapsed time: 01m26.43s
> Total system time: 00m06.71s
> Total user time: 00m08.73s
>
> dt (261): Error number 1 occurred on Sat Jul 20 17:52:18 2002
> dt (261): Data compare error at byte 237670 in record number 1
> dt (261): Relative block number where the error occcured is 464 (offset 102)
> dt (261): Data expected = 0xff, data found = 0, byte count = 512000
> dt (261): The incorrect data starts at address 0x80bf962 (marked by asterisk '*')
> dt (261): Dumping Pattern Buffer (base = 0x80bf960, offset = 2, limit = 4 bytes):
>
> 0x80bf960 ff 00*ff 00
>
> dt (261): The incorrect data starts at address 0x4003c066 (marked by asterisk '*')
> dt (261): Dumping Data Buffer (base = 0x40002000, offset = 237670, limit = 64 bytes):
>
> 0x4003c046 ff 00 ff 00 ff 00 ff 00 ff 00 ff 00 ff 00 ff 00
> 0x4003c056 ff 00 ff 00 ff 00 ff 00 ff 00 ff 00 ff 00 ff 00
> 0x4003c066 *00 00 ff 00 ff 00 ff 00 ff 00 ff 00 ff 00 ff 00
> 0x4003c076 ff 00 ff 00 ff 00 ff 00 ff 00 ff 00 ff 00 ff 00
>
> Read Statistics (261):
> Current Process Reported: 2/2
> Total records processed: 1 with min=512000, max=2048000, incr=512
> Total bytes transferred: 512000 (500.000 Kbytes, 0.488 Mbytes)
> Average transfer rates: 4266667 bytes/sec, 4166.667 Kbytes/sec
> Number I/O's per second: 8.333
> Total passes completed: 1
> Total errors detected: 1/1
> Total elapsed time: 00m00.12s
> Total system time: 00m00.00s
> Total user time: 00m00.01s
>
> Total Statistics (261):
> Output device/file name: ../test-261 (device type=regular)
> Type of I/O's performed: sequential (forward)
> Current Process Reported: 2/2
> Data pattern read/written: 0x00ff00ff
> Total records processed: 1281 with min=512000, max=2048000, incr=512
> Total bytes transferred: 1074253824 (1049076.000 Kbytes, 1024.488 Mbytes)
> Average transfer rates: 12409077 bytes/sec, 12118.240 Kbytes/sec
> Number I/O's per second: 14.797
> Total passes completed: 1
> Total errors detected: 1/1
> Total elapsed time: 01m26.57s
> Total system time: 00m06.71s
> Total user time: 00m08.74s
> Starting time: Sat Jul 20 17:50:52 2002
> Ending time: Sat Jul 20 17:52:18 2002
>
>
> dt (260): Error number 1 occurred on Sat Jul 20 17:52:18 2002
> dt (260): Data compare error at byte 12294 in record number 2
> dt (260): Relative block number where the error occcured is 1024 (offset 6)
> dt (260): Data expected = 0xc3, data found = 0xff, byte count = 512512
> dt (260): The incorrect data starts at address 0x80bf962 (marked by asterisk '*')
> dt (260): Dumping Pattern Buffer (base = 0x80bf960, offset = 2, limit = 4 bytes):
>
> 0x80bf960 39 9c*c3 39
>
> dt (260): The incorrect data starts at address 0x40005006 (marked by asterisk '*')
> dt (260): Dumping Data Buffer (base = 0x40002000, offset = 12294, limit = 64 bytes):
>
> 0x40004fe6 c3 39 39 9c c3 39 39 9c c3 39 39 9c c3 39 39 9c
> 0x40004ff6 c3 39 39 9c c3 39 39 9c c3 39 39 9c c3 39 39 9c
> 0x40005006 *ff 39 39 9c c3 39 39 9c c3 39 39 9c c3 39 39 9c
> 0x40005016 c3 39 39 9c c3 39 39 9c c3 39 39 9c c3 39 39 9c
>
> Read Statistics (260):
> Current Process Reported: 1/2
> Total records processed: 2 with min=512000, max=2048000, incr=512
> Total bytes transferred: 1024512 (1000.500 Kbytes, 0.977 Mbytes)
> Average transfer rates: 5392168 bytes/sec, 5265.789 Kbytes/sec
> Number I/O's per second: 10.526
> Total passes completed: 1
> Total errors detected: 1/1
> Total elapsed time: 00m00.19s
> Total system time: 00m00.00s
> Total user time: 00m00.01s
>
> Total Statistics (260):
> Output device/file name: ../test-260 (device type=regular)
> Type of I/O's performed: sequential (forward)
> Current Process Reported: 1/2
> Data pattern read/written: 0x39c39c39
> Total records processed: 1282 with min=512000, max=2048000, incr=512
> Total bytes transferred: 1074766336 (1049576.500 Kbytes, 1024.977 Mbytes)
> Average transfer rates: 12399242 bytes/sec, 12108.635 Kbytes/sec
> Number I/O's per second: 14.790
> Total passes completed: 1
> Total errors detected: 1/1
> Total elapsed time: 01m26.68s
> Total system time: 00m05.95s
> Total user time: 00m08.60s
> Starting time: Sat Jul 20 17:50:52 2002
> Ending time: Sat Jul 20 17:52:18 2002
>
>
>
> --END OF OUTPUT--
>
> Sometimes, when I altered the run-time parameters I would get complete
> kernel crashes, leaving a message similar to the following:
> Assersion Failure in __journal_file_buffer() transaction.c:1937
> ..
>
> I don't really know how one may be related to the other, as I did not log
> the complete output of the crash...
>
> Thanks for your help,
> -David
> -
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