Messages in this thread | | | Date | Tue, 13 Feb 2007 20:49:23 -0800 (PST) | From | Davide Libenzi <> | Subject | Re: [patch 00/11] ANNOUNCE: "Syslets", generic asynchronous system call support |
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On Tue, 13 Feb 2007, Davide Libenzi wrote:
[...]
> So the sys_async_exec task is going to block. Now, am I being really > tired, or the cachemiss fast return is simply not there?
The former 8)
pick_new_async_head() new_task->ah = ah;
cachemiss_loop() for (;;) { if (unlikely(t->ah || ...)) break;
> There's another problem AFAICS: > > - We woke up one of the cachemiss_loop threads in pick_new_async_thread > > - The threads wakes up, mark itself as busy, and look at the ->work > pointer hoping to find something to work on > > But we never set that pointer to a userspace atom AFAICS. Me blind? :)
I still don't see at->work ever set to a valid userspace atom though...
- Davide
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