Messages in this thread | | | Date | Mon, 17 Mar 2008 08:23:25 +0100 | From | Jens Axboe <> | Subject | Re: Linux 2.6.25-rc4 |
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On Sun, Mar 16 2008, Bartlomiej Zolnierkiewicz wrote: > On Sunday 16 March 2008, Bartlomiej Zolnierkiewicz wrote: > > [...] > > > I think that we are looking into completely wrong direction... > > Alt-SysRq-T traces that Anders posted shows that the system hangs inside > block layer, if not clearing DRQ would be the case we should see system > getting stuck inside IDE (or at least IDE commands timing out)...
The bisect ends up pointing at IDE bits everytime, plus it's io scheduler independent. So I don't think a generic issue is very likely.
> I really do think that it is the same hang-in-block-layer issue that > Ingo managed to hit once (his system was using libata)...
There's no data to back any such conclusion up, that would be extremely hand wavy (at best).
Ingo hit a hang in one boot out of hundreds to thousands. Anders can reproduce easily, should be easy enough to narrow down.
-- Jens Axboe
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