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List:       linux-kernel
Subject:    Re: Stuck processes in 2.2.13 and 2.2.14pre6
From:       Kevin Fenzi <kevin () scrye ! com>
Date:       1999-11-30 23:31:42
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> > > > > "Philippe" == Philippe Troin <phil@fifi.org> writes:

Philippe> Andrea Arcangeli <andrea@suse.de> writes:
> > On Sun, 21 Nov 1999, Kevin Fenzi wrote:
> > 
> > > slocate 11284 wait_on_buffer
> > 
> > Which kind of HD are you using? IDE/SCSI whatever? That's a device
> > driver or hardware problem. If you are IDE you may want to hdparm
> > -u0 /dev/hd*.

Philippe> I've also seen that on 2.2.13. 2.2.12 seems fine.  It's on a
Philippe> SMP box with 2 Pentium Pros. Linux 2.2.12 + HJL's knfs
Philippe> patches (1.5.2).

Well, I thought my problem was perhaps related to the scsi cdrom
locking issues that had cropped up. I booted in 2.2.14pre8 (which has
the fix for the scsi cdrom thing). 

Everything looked good for about 6 days, and then all of a sudden, the
stuck processes were back:

root     25497  0.0  0.1  1284  492 ?        S    Nov25   0:00 CROND
root     26316  0.0  0.1  1112  444 ?        D    Nov25   0:33 /usr/bin/slocate -u -e \
/home/rahl1,/home/rahl2,/tmp,/var/tmp,/usr/tmp,/afs,/net,/proc root      6620  0.0  0.1  1288  508 ?      \
S    Nov26   0:00 CROND root      6624  0.0  0.3  1488  804 ?        D    Nov26   0:00 rdump -9uaf rahl \
/dev/nst0 /home/jelerak1 root      9438  0.0  0.1  1284  492 ?        S    Nov26   0:00 CROND
root     10638  0.0  0.1  1112  444 ?        D    Nov26   0:35 /usr/bin/slocate -u -e \
/home/rahl1,/home/rahl2,/tmp,/var/tmp,/usr/tmp,/afs,/net,/proc

26316 /usr/bin/slocate wait_on_buffer
10638 /usr/bin/slocate down_failed
 6624 rdump -9uaf rahl wait_on_buffer

It could be dodgy hardware, but which? There are no errors. I can
access both my scsi disks, my scsi cdrom, and the ide cdrom. If I do a
'sync' it also gets stuck:

25221 sync             wait_on_buffer

anyone have any ideas? Anything I can do to get it to indicate what
buffer it's waiting on? 

Philippe> Phil.

kevin


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