UFS lockups

Sławek Żak szak at era.pl
Wed Nov 26 07:32:01 PST 2003

I observe UFS lockups under heavy I/O. To reproduce the problem run around
10 copies of cp -Rp /usr/some-random-dir. All cp's after some time are hanging
on getblk. du's running concurrently are hanging in ufs state. The filesystems
are UFS2. The Server is running 5.2-BETA on SMP Dell 2650. Filesystems are laid
on Adaptec RAID controller (aac). Any ideas how to trace the problem?


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