freebsd stable - Mar 2005 - ULE scheduler freezes kernel

Hi,

I was trying the ULE scheduler again on my single i686 5.4PRE laptop,
but it causes the kernel to freeze after some time (>=30 minutes): the
kernel does not even respond to opening/closing the lid when booting
verbose (normally it displays "acpi_lid0: Lid {opened|closed}").
Having some disk activity (e.g. portupgrade) seems to catalyze this
behaviour.  Only a full power reset gets the laptop running again.  I do
not have this problem with the 4BSD scheduler.

Sources are from March 16, 23:10 UTC.

Full details are available using anonymous ftp at
ftp://82.168.140.74/pub/ {conf|log}

Regards,
Rene
-- 
"It won't fit on the line."
		-- me, 2001
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On Thu, Mar 17, 2005 at 10:14:50PM +0100, Rene Ladan
wrote:
> Hi,
> 
> I was trying the ULE scheduler again on my single i686 5.4PRE laptop,
> but it causes the kernel to freeze after some time (>=30 minutes): the
> kernel does not even respond to opening/closing the lid when booting
> verbose (normally it displays "acpi_lid0: Lid {opened|closed}").
> Having some disk activity (e.g. portupgrade) seems to catalyze this
> behaviour.  Only a full power reset gets the laptop running again.  I do
[...]

This seems to be solved with RELENG_6 :

% uname -v
FreeBSD 6.0-BETA2 #5: Thu Aug 11 16:50:36 CEST 2005    
root@:/usr/obj/usr/src/sys/RENE

% sysctl kern.sched.name
kern.sched.name: ule

% uptime
 3:35pm  up 3 days,  1:17, 6 users, load averages: 1,00 1,02 1,00

And it even survived an OpenOffice portupgrade. :)

Regards,
Rene
-- 
GPG fingerprint = 5FFA 3959 3377 C697 8428  24D0 BF3E F4A9 AE33 5DCC

"It won't fit on the line."
		-- me, 2001
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