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SubjectRe: UDMA Problem on VIA chipset - K7M motherboard
Date
The man page for hdparm SPECIFICALLY says using -X is likely to cause fs
corruption. DO NOT use it.

I'm running a k7m and athlon 500. After remvoing -X66, i've had no more
problems

--buddy

>
> > I have a Asus k7m mb with amd athlon 500 processor.
> > When I try to enable DMA on hda using hdparm -d 1 I get the following
> > errors:
>
> I'm getting this too - along with MASSIVE FILESYSTEM CORRUPTION!
> I'm using an Asus K7M (VIA82C686A IDE chipset) with Athlon 650 MHz CPU.
>
> I've seen problems with the following kernels:
>
> RedHat 6.1 stock 2.2.12-20 (which I'm using to generate the
> configuration output below)
> 2.2.14
> 2.2.14 + Jens Axboe's DVD/CD+IDE patch
> 2.2.15pre9
> 2.2.15pre9 + Jens Axboe's DVD/CD+IDE patch
>
> Everything seems to work just fine until I do a hdparm -c 1 -d 1 -X 66
> -S 180 /dev/hda /dev/hdb, then all hell breaks loose. It seems to be
> triggered by massive disk I/O - it'll run OK for a while, but if I
> restore from a backup, copy many files between the two drives, or
> install something from CD, the filesystem seems to be instantly and
> irretrievably corrupted.
>
> Also, I don't know if this is related, but I'm still seeing in the
> latest kernels a problem I reported a few months ago wherein doing a
> directory listing of a CD-ROM returns inconsistent results (once mounted
> the results are consistent, but each time the drive is mounted I see a
> different set of missing files).
>
> Any help with either of these would be greatly appreciated! My drive
> config is listed below. Please let me know if there's any other needed
> information.
>
> [root@DILITHIUM /root]# hdparm -i /dev/hda /dev/hdb
>
> /dev/hda:
>
> Model=WDC WD307AA, FwRev=05.05B05, SerialNo=WD-WMA111008520
> Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs
> FmtGapReq }
> RawCHS=59598/16/63, TrkSize=57600, SectSize=600, ECCbytes=40
> BuffType=3(DualPortCache), BuffSize=2048kB, MaxMultSect=16,
> MultSect=off
> DblWordIO=no, maxPIO=2(fast), DMA=yes, maxDMA=0(slow)
> CurCHS=3739/255/63, CurSects=-1423965292, LBA=yes
> LBA CHS=934/1020/63 Remapping, LBA=yes, LBAsects=60074784
> tDMA={min:120,rec:120}, DMA modes: mword0 mword1 mword2
> IORDY=on/off, tPIO={min:120,w/IORDY:120}, PIO modes: mode3 mode4
> UDMA modes: mode0 mode1 mode2
>
>
> /dev/hdb:
>
> Model=WDC AC28400R, FwRev=17.01J17, SerialNo=WD-WT6280742940
> Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs
> FmtGapReq }
> RawCHS=16383/16/63, TrkSize=57600, SectSize=600, ECCbytes=40
> BuffType=3(DualPortCache), BuffSize=512kB, MaxMultSect=16, MultSect=off
> DblWordIO=no, maxPIO=2(fast), DMA=yes, maxDMA=0(slow)
> CurCHS=1027/255/63, CurSects=-66060037, LBA=yes
> LBA CHS=513/510/63 Remapping, LBA=yes, LBAsects=16514064
> tDMA={min:120,rec:120}, DMA modes: mword0 mword1 mword2
> IORDY=on/off, tPIO={min:160,w/IORDY:120}, PIO modes: mode3 mode4
> UDMA modes: mode0 mode1 mode2
>
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