Justin Piszcz wrote:
This is a known bug in 2.6.23 and should be fixed in 2.6.23.2 if the
RAID5 bio* patches are applied.
Note below he's running 2.6.22.3 which doesn't have the bug unless
-STABLE added it. So should not really be in 2.6.22.anything. I assume
you're talking the endless write or bio issue?
Justin.
On Wed, 14 Nov 2007, Peter Magnusson wrote:
Hey.
[1.] One line summary of the problem:
raid5 hangs and use 100% cpu
[2.] Full description of the problem/report:
I have used 2.6.18 for 284 days or something until my powersupply
died, no problem what so ever duing that time. After that forced
reboot I did these changes; Put in 2 GB more memory so I have 3 GB
instead of 1 GB, two disks in the raid5 got badblocks so I didnt
trust them anymore so I bought new disks (I managed to save the
raid5). I have 6x300 GB in a raid5. Two of them are now 320 GB so
created a small raid1 also. That raid5 is encrypted with
aes-cbc-plain. The raid1 is encrypted with aes-cbc-essiv:sha256.
I compiled linux-2.6.22.3 and started to use that. I used the same
.config
as in default FC5, I think i just selected P4 cpu and preemptive
kernel type.
After 11 or 12 days the computer froze, I wasnt home when it happend and
couldnt fix it for like 3 days. It was just to reboot it as it wasnt
possible to login remotely or on console. It did respond to ping
however.
After reboot it rebuilded the raid5.
Then it happend again after approx the same time, 11 or 12 days. I
noticed
that the process md1_raid5 used 100% cpu all the time. After reboot it
rebuilded the raid5.
I compiled linux-2.6.23.
And then... it happend again... After about the same time as before.
md1_raid5 used 100% cpu. I also noticed that I wasnt able to save
anything in my homedir, it froze during save. I could read from it
however. My homedir isnt on raid5 but its encrypted. Its not on any
disk that has to do with raid. This problem didnt happend when I used
2.6.18. Currently I use 2.6.18 as I kinda need the computer stable.
After reboot it rebuilded the raid5.
--
bill davidsen <davidsen@xxxxxxx>
CTO TMR Associates, Inc
Doing interesting things with small computers since 1979
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