Hello, John.
You wrote 23 июня 2008 г., 18:47:33:
On Monday 16 June 2008 07:21:15 am Lev Serebryakov wrote:
Lev Serebryakov wrote:
It seems to be ATA/SATA or UFS2 problem: now I have computer in state,
when 4 iozone processes are hanged in Disk wait state, and I can not
cd to filesystem, which is tested by iozone.
But I can create processes, work on system, etc., if I don't touch this
filesystem.
I can reproduce it, creating gmirror on 5 disks (yes, not very useful
configuration, but I've started from non-base-system RAID5 and need to
exclude it), FS with 64Kb blocks, and 4 threads of iozone with mixed
workload (-i 8 -+p 70).
All 5 disks are ICH9DO-based, SATA-II WD5000AAKS HDDs.
Try getting the 'ps' output from ddb. Also, get a crash dump if you can.
It was tracked douwn to known deadlock in buffer allocator when
buffer map is fragmented (thnx to [EMAIL PROTECTED]). Workaround is known:
don't
use FSes with 16Kb and 64Kb blocks on same system in one time. 16/32
mixture works well :)
--
// Black Lion AKA Lev Serebryakov [EMAIL PROTECTED]
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