Messages in this thread | | | Date | Wed, 25 Jun 2003 21:30:02 +0200 (MET DST) | From | Bartlomiej Zolnierkiewicz <> | Subject | Re: SOLVED - Testing IDE-TCQ and Taskfile - doesn't work nicely:) |
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On Wed, 25 Jun 2003, Jan-Benedict Glaw wrote:
> On Wed, 2003-06-25 20:44:19 +0200, Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> > wrote in message <Pine.SOL.4.30.0306252040570.11992-100000@mion.elka.pw.edu.pl>: > > On Wed, 25 Jun 2003, Jan-Benedict Glaw wrote: > > > On Wed, 2003-06-25 01:08:13 +0200, Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> > > > wrote in message <Pine.SOL.4.30.0306250107180.17106-100000@mion.elka.pw.edu.pl>: > > > > On Wed, 25 Jun 2003, Jan-Benedict Glaw wrote: > > > > > On Tue, 2003-06-24 15:44:36 +0200, Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> > > > > > wrote in message <Pine.SOL.4.30.0306241543050.23584-100000@mion.elka.pw.edu.pl>: > > > > However, allow me to ask why this occured never bevore (for other > > > people)? Do they all have only one drive? Does nobody use TCQ? Nobody > > > with old hardware (though, your patch hasn't touched the core PIIX > > > parts...)? > > > > nobody is stupid^H^Hbrave enough to use TCQ ;-) > > Well... I knew that it was, erm, brave to use it at some time (this box > isn't really important - if I kill its filesystems, I'll simply > re-install and recover my mirror scripts:) , but new, where 2.5.x > starts to be really useable, I'd suggest to face users with upcoming > problems:
I think 2.5.x is really useable.
> CONFIG_IDE_TASKFILE_IO > It is safe to say Y to this question, in most cases. > > (By the way, exactly which cases are ment?)
Ehh... 3 weird bugreports (all are oopses): - on x86_64 with 32 bit userspace when reading /proc/ide/hdx/identify - in task_mulout_intr() on access to freed rq->bio - "bad: scheduling while atomic"
I don't have any ideas how to find&fix these bugs...
> CONFIG_BLK_DEV_IDE_TCQ > If you have such a drive, say Y here.
TCQ is marked (EXPERIMENTAL) but there should be warning about potential risk... :-)
> CONFIG_BLK_DEV_IDE_TCQ_DEFAULT > Generally say Y here. > > > CONFIG_BLK_DEV_IDE_TCQ_DEPTH > You probably just want the default of 32 here. > > (Default queue depth is 8, not 32...)
Jens did some testing ages ago and 8 was optimal...
> Right now, I'm building 2.5.73-bk3 + your 2nd patch. Let's face it:)
Okay. :-) -- Bartlomiej
> MfG, JBG > > -- > Jan-Benedict Glaw jbglaw@lug-owl.de . +49-172-7608481 > "Eine Freie Meinung in einem Freien Kopf | Gegen Zensur | Gegen Krieg > fuer einen Freien Staat voll Freier Bürger" | im Internet! | im Irak! > ret = do_actions((curr | FREE_SPEECH) & ~(IRAQ_WAR_2 | DRM | TCPA));
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