Messages in this thread | | | Date | Tue, 3 Jun 2003 22:59:29 +0200 | From | "J.A. Magallon" <> | Subject | sched.c gives ICE [Was: Re: web page on O(1) scheduler] |
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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:
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 ?
-- J.A. Magallon <jamagallon@able.es> \ Software is like sex: werewolf.able.es \ It's better when it's free Mandrake Linux release 9.2 (Cooker) for i586 Linux 2.4.21-rc6-jam1 (gcc 3.2.3 (Mandrake Linux 9.2 3.2.3-1mdk)) - 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/
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