Messages in this thread | | | Date | Thu, 06 Nov 2003 15:00:24 +0100 | From | "Prakash K. Cheemplavam" <> | Subject | Re: 2.9test9-mm1 and DAO ATAPI cd-burning corrupt |
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Nick Piggin wrote: > > > Jens Axboe wrote: > >> On Thu, Nov 06 2003, Prakash K. Cheemplavam wrote: >> >>>>>> Heh indeed, maybe because the archs I use are still at 100. Looks >>>>>> suspiciously like it's loosing timer interrupts, which would indeed >>>>>> point to PIO. >>>>>> >>>>>> >>>>> bash-2.05b# hdparm -I /dev/hdc >>>>> >>>> >>>> -i please >>>> >>> bash-2.05b# hdparm -i /dev/hdc >>> >>> /dev/hdc: >>> >>> Model=LITE-ON LTR-16102B, FwRev=OS0K, SerialNo= >>> Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic } >>> RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0 >>> BuffType=unknown, BuffSize=0kB, MaxMultSect=0 >>> (maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0 >>> IORDY=yes, tPIO={min:227,w/IORDY:120}, tDMA={min:120,rec:120} >>> PIO modes: pio0 pio1 pio2 pio3 pio4 >>> DMA modes: mdma0 mdma1 *mdma2 >>> AdvancedPM=no >>> >>> * signifies the current active mode >>> >>> The same: dma is active. >>> >> >> Indeed, so you are ysing multiword mode 2. Can you try and do a dd from >> the drive, while doing a vmstat 1? Also, does that show the jerky >> behaviour? >> > > AFAIK, Prakash cannot reproduce this bad behaviour with mm1, only mm2 (is > this right, Prakash?). So its something there (don't forget Andrew merges > the latest bk with his releases too).
AFAIK, yes. Just too be 100% sure, I rather boot up mm1 and will do a test-run...
Prakash
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