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SubjectRe: Repeatable File Corruption (ECS K7S5A w/SIS735)

I just tried 2.4.10-ac12 with no solution. The same file corruption still
exists.

Not that it's relevant, but I was unable to get any of the 2.4.12 -ac
patches to compile:

make[3]: Entering directory `/usr/src/kernel-source-2.4.12/fs/partitions'
gcc -D__KERNEL__ -I/usr/src/kernel-source-2.4.12/include -Wall
-Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer
-fno-strict-aliasing -fno-common -pipe -mpreferred-stack-boundary=2
-march=i686 -malign-functions=4 -DEXPORT_SYMTAB -c msdos.c
msdos.c: In function `handle_ide_mess':
msdos.c:550: warning: implicit declaration of function `invalidate_bdev'
msdos.c:551: structure has no member named `bd_inode'
make[3]: *** [msdos.o] Error 1

# gcc -v
Reading specs from /usr/lib/gcc-lib/i386-linux/2.95.4/specs
gcc version 2.95.4 20011006 (Debian prerelease)




On Thu, 25 Oct 2001, Andre Hedrick wrote:

>
> Greetings dan,
>
> Well no kidding !!!
> Just maybe it is the VM layer getting it wrong again.
> Please try an -ac kernel and see if it still exist.
>
> As most know that there are corrections there that have not been accepted
> into the main tree ..... OUCH that hurts ....
>
> Cheers,
>
> On Thu, 25 Oct 2001, dan wrote:
>
> >
> > ===== SUMMARY
> >
> > I have found a file corruption issue when writing files seemingly related
> > to my new motherboard.
> >
> >
> > ===== HARDWARE
> >
> > It is repeatable and verified on other boards of the same model. This
> > just started happening when I upgraded the system. The following is a
> > link to the ECS K7S5A board in question, the SIS735 chipset, and a
> > hardware description:
> >
> > http://www.ecsusa.com/ecsusa/www.ecs.com.tw/products/k7s5a.htm
> > http://www.sis.com/products/chipsets/oa/socketa/735.htm
> >
> > ECS K7S5A motherboard
> > AMD 1.4Ghz Tbird
> > 2x256Mb Micron DDR PC2100
> > hda: ST36421A, ATA DISK drive
> > hdb: QUANTUM FIREBALLP LM10.2, ATA DISK drive
> > hdc: IC35L060AVER07-0, ATA DISK drive
> >
> >
> > ===== DESCRIPTION
> >
> > The bug was first noticed when running a game server that verifies client
> > map files with the server map files. Some of the maps, no matter what I
> > did, were always different, causing the server to reject clients. Using
> > the commands md5sum and cmp, I noticed that each time I copied a new file
> > into place, it was slightly different:
> >
> > $ cp de_aztec.bsp de_aztec.bsp2
> > $ cmp de_aztec.bsp de_aztec.bsp2
> > de_aztec.bsp de_aztec.bsp2 differ: char 2287174, line 6590
> > $ md5sum de_aztec.bsp de_aztec.bsp2
> > c138a969edf84abcfc5fe4b4b2a2c5ed de_aztec.bsp
> > 36b5bdd244d69a8d0fb3c81ba25e1df1 de_aztec.bsp2
> >
> > Not only that, every copy is different from every other copy:
> >
> > $ cp de_aztec.bsp de_aztec.bsp3
> > $ cp de_aztec.bsp de_aztec.bsp4
> > $ cp de_aztec.bsp de_aztec.bsp5
> > $ md5sum de_aztec.bsp de_aztec.bsp?
> > c138a969edf84abcfc5fe4b4b2a2c5ed de_aztec.bsp
> > fe858630be18e37eba8ea73a6be941c9 de_aztec.bsp2
> > 87bd1ad8b0ff2c58ebff5372f865fa35 de_aztec.bsp3
> > 7cffbffca0600c80e6cae336f52c885b de_aztec.bsp4
> > 91287ef7c8eb047d8f305315b4e0ce55 de_aztec.bsp5
> >
> > It does not seem to be an issue with reading from the drive because the
> > md5sum of the original file is always the same.
> >
> > This is repeatable with any command that will write a file out including
> > tar, rsync, and ftp. If I move the file within the partition, there is no
> > corruption. Copying the file one character at a time works.
> >
> > This does not happen with every file on the drive. In fact, out of the
> > 1400 files related to the server, I only found a few dozen that I could
> > repeat this issue with. I also have complaints from other users of the
> > system of files being corrupt and have found a number myself.
> >
> > I have repeated this with the following:
> >
> > Duplicate systems (I have 5)
> > Multiple hard drives (IBM, Quantum, Seagate)
> > Different filesystems on multiple drives (reiserfs, ext2)
> > With and without different drivers in the kernel (IDE chipset support)
> > Kernels 2.4.10 through 2.4.13
> > Drives running at different speeds (ATA-100, 66, 33)
> > Slow processor (AMD 1.2GHz Tbird)
> >
> >
> > ===== WORKAROUND
> >
> > The problem only went away when I replaced the motherboard. I also
> > haven't had any file corruption issues running Windows2000 on the same
> > hardware with the same files. I moved all of the hardware in the original
> > system to a new motherboard (ASUS A7A266) and the problem went away.
> >
> > I have CC'd the IDE chipset maintainer because I can only assume it might
> > be related.
> >
> > Thank you for fighting through this email, I know it was long and boring.
> >
> >
> > dan
> >
>
> Andre Hedrick
> CTO ASL, Inc.
> Linux ATA Development
> -----------------------------------------------------------------------------
> ASL, Inc. Tel: (510) 857-0055 x103
> 38875 Cherry Street Fax: (510) 857-0010
> Newark, CA 94560 Web: www.aslab.com
>
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