6.0 hangs (while building OOo)

[Don Lewis]

On  4 Oct, Mikhail T. wrote:
> This happened twice already -- I rebuilt the kernel after the first
> time. I'm currently running
> 
> 	FreeBSD 6.0-BETA5 #7: Mon Oct  3 19:10:37 EDT 2005
> 
> This is a dual Xeon-PII @450MHz with 512Mb of memory.
> 
> The OOo build progresses until it gets stuck on something like:
> 
> 	if ( -e ../../../unxfbsd.pro/slo/provider.o) touch ../../../unxfbsd.pro/slo/provider.obj
> 
> According to Ctrl-T, the active process is:
> 
> 	load: 0.00  cmd: perl5.8.7 64983 [runnable] 0.00u 0.01s 0% 4868k
> 
> but the machine is 100% idle. The build itself can be interrupted
> with Ctrl-C, but the subsequent access to the work-directory
> will somewhere. The first time `rm -rf' got hung. Now
> `find work/ -name provider.o' is hanging (after displaying
> work/OOo_2.0beta2/configmgr/unxfbsd.pro/slo/provider.o).
> 
> The machine is otherwise usable. When rebooted after the first time
> this happened, the reboot hung too -- I had to cold-reset it and the
> filesystem hosting /usr/ports had to be fsck-ed.

Is this problem repeatable?

What does "ps lax" say about the hung processes?

Where is the reboot sequence did the system hang?

What problems did fsck fix?

My RELENG_6 box doesn't have enough space to build OOo, but I can try it
on HEAD, which should be very similar.