lkml.org 
[lkml]   [2002]   [Jan]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [2.4.17/18pre] VM and swap - it's really unusable
From
Date
>>>>> "Oliver" == Oliver Neukum <520047054719-0001@t-online.de> writes:

Oliver> On Monday 14 January 2002 13:17, Momchil Velikov wrote:
>> >>>>> "yodaiken" == yodaiken <yodaiken@fsmlabs.com> writes:
>>
yodaiken> It's not even clear how preempt is supposed to interact with
>> SCHED_FIFO.
>>
>> How so ? The POSIX specification is not clear enough or it is not to be
>> followed ?

Oliver> You can have an rt task block on a lock held by a normal task that was
Oliver> preempted by a rt task of lower priority. The same problem as with the
Oliver> sched_idle patches.

This can happen with a non-preemptible kernel too. And it has nothing to
do with scheduling policy.


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:15    [W:0.409 / U:0.472 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site