Re: regression between 2.4.18 and 2.4.21/22

[Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>]

On Monday 06 of October 2003 22:21, Justin Hibbits wrote:
> On Monday, Oct 6, 2003, at 15:06 America/New_York, Bartlomiej
>
> Zolnierkiewicz wrote:
> > Your /dev/hda (IBM DeskStar 60GXP) is not in DMA mode because
> > you don't have support for your IDE controller compiled-in.
> > Going from 2.4.21 you have to explicitely enable support for IDE
> > chipsets.
> > Assumption that current .config file will work with future kernel
> > versions
> > is not true.  Please compile kernel with driver for your on-board IDE
> > chipset
> > (I deducted from your dmesg that it is VIA82CXXX IDE driver).
> >
> > Please report back if this cures your problem,
> >
> > Thanks,
> > --bartlomiej
> >
> > On Monday 06 of October 2003 01:38, Justin Hibbits wrote:
> >> On Sunday, Oct 5, 2003, at 19:22 America/New_York, Bartlomiej
> >>
> >> Zolnierkiewicz wrote:
> >>> Please narrow down kernel version if you want your problem to be
> >>> cared.
> >>>
> >>> Try 2.4.19, 2.4.20.  There are also intermediate prepatches at
> >>> http://www.kernel.org/pub/linux/kernel/v2.4/testing/old/
> >>>
> >>> dmesg output and .config can also be useful.
> >>>
> >>> --bartlomiej
> >>>
> >>> On Sunday 05 of October 2003 22:21, Justin Hibbits wrote:
> >>>> Something very strange is going on with my machine.  With 2.4.18, I
> >>>> was
> >>>> getting 38MB/s on my main system disk (IBM Deskstar 60gxp), and 35
> >>>> for
> >>>> the other drives (Western Digital).  The IBM drive is on a Promise
> >>>> IDE
> >>>> controller (ASUS A7V266-E motherboard), and the others are on a
> >>>> PROMISE
> >>>> 2069 UDMA133 controller.  However, with 2.4.21 and 2.4.22, it will
> >>>> not
> >>>> set the using_dma flag for my IBM drive, but sets it for the others,
> >>>> which now get sustained transfer rates of 46MB/s or greater.  I'm
> >>>> using
> >>>> the same options for all 3 kernels (at least, for the ATA/IDE
> >>>> options).
> >>>>   Any help would be appreciated, and I'll see if maybe I could do
> >>>> something with it when I get time.
> >>
> >> Ok, I tried 2.4.19, which I thought was pretty bad because it randomly
> >> crashed all the time, and it worked just fine with all my drives.
> >> 2.4.20 with the wolk-4.0 patch also worked.  So, I'm guessing it was
> >> between 2.4.20 and 2.4.21....I could try all the prepatches as well,
> >> and narrow down exact prepatch, will take some time.  dmesg output for
> >> 2.4.21 follows (uses a patchset for XFS, sensors, etc), along with my
> >> config, both compressed.
>
> Thanks Bartlomeij, building that driver helped.  Curious though, since
> it's using the PROMISE chip, or should be, since, according to my
> motherboard's manual, the PROMISE chip is the only IDE chip there.

Good.  It has also on-board IDE ports (from VIA chipset).

--bartlomiej