Messages in this thread |  | | Date | Wed, 04 Jun 2003 00:29:44 +0200 | | From | Mike Galbraith <> | | Subject | Re: sched.c gives ICE [Was: Re: web page on O(1) scheduler] |
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At 10:59 PM 6/3/2003 +0200, J.A. Magallon wrote:
>On 05.22, Mike Galbraith wrote: > > At 10:56 AM 5/21/2003 -0700, David Mosberger wrote: > > > >>>>> On Wed, 21 May 2003 11:26:31 +0200, Mike Galbraith <efault@gmx.de> > > > said: > > > > > > Mike> The page mentions persistent starvation. My own explorations > > > Mike> of this issue indicate that the primary source is always > > > Mike> selecting the highest priority queue. > > > > > >My working assumption is that the problem is a bug with the dynamic > > >prioritization. The task receiving the signals calls sleep() after > > >handling a signal and hence it's dynamic priority should end up higher > > >than the priority of the task sending signals (since the sender never > > >relinquishes the CPU voluntarily). > > > > > >However, I haven't actually had time to look at the relevant code, so > > >I may be missing something. If you understand the issue better, > > >please explain to me why this isn't a dynamic priority issue. > > > > You're right, it looks like a corner case. It works fine here with the > > attached diff. > > > >Have you tried to build with gcc-3.3 ? I applied it on top of 2.4.x-aa, >and I just get an ICE:
No, I use 2.95.3.
>End of search list. >sched.c: In function `do_schedule': >sched.c:1003: internal compiler error: in merge_assigned_reloads, at >reload1.c:6134 >Please submit a full bug report, >with preprocessed source if appropriate. >See <URL:https://qa.mandrakesoft.com/> for instructions. > >sched.c::1003 is the closing brace for do_schedule(). > >Any idea ?
Nope... gcc can have the blame if it wants it :)
-Mike
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