SCHED_ULE with SMP broke libpthread/libthr on 5.4-RELEASE

[Chris]

Seems the 4+ cpu crash fix might have broken it at a guess since RC4
onwards it broke, I am interested in how this goes as I was planning
on upgrading a SMP box to 5.4 and ULE this month.

Have you guys tried this without SMP?

Chris

On 5/11/05, Marian Hettwer <MH at kernel32.de> wrote:
> On Mi, 11.05.2005, 14:34, Steven Jurczyk sagte:
> > **Using SCHED_ULE on SMP/HT machine broke applications which use
> > libpthread/libthr, probably at context switching between threads... The
> > applications simply hang and they aren't killable (kill -9 <pid> don't
> > work).. Usually this also break kernel shutdown (can't flush some inodes
> > or blocks)...
> >
> right!
> I have the same problem. My Kernel is basicly a GENERIC with SMP and ULE
> added (4BSD removed).
> 
> ([mhettwer at siteop-8] <~>)$ uname -a
> FreeBSD siteop-8.mobile.rz 5.4-STABLE FreeBSD 5.4-STABLE #7: Wed May 11
> 12:03:35 CEST 2005
> root at siteop-8.mobile.rz:/usr/src/sys/i386/compile/SITEOP-8  i386
> 
> > This is very big problem for people who want use mysql_server on SMP
> > machines...
> indeed.
> The MySQL server won't start and is not killable. I had to switch back to
> SCHED_4BSD :-/
> 
> I would be available for testing packages, as this machine is not in
> production.
> 
> it's a dual xeon 2,8 ... you can find detailed information about it at:
> http://unixoid.de/freebsd/dmesg.xeon
> 
> :)
> 
> best regards,
> Marian
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