Messages in this thread | | | Date | Thu, 11 Dec 2003 07:38:38 -0800 | From | William Lee Irwin III <> | Subject | Re: [CFT][RFC] HT scheduler |
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William Lee Irwin III wrote: >> Volano is all one process address space so it could be ->page_table_lock; >> any chance you could find which spin_lock() call the pounded chunk of the >> lock section jumps back to?
On Fri, Dec 12, 2003 at 02:30:27AM +1100, Nick Piggin wrote: > OK its in futex_wait, up_read(¤t->mm->mmap_sem) right after > out_release_sem (line 517). > So you get half points. Looks like its waiting on the bus rather than > spinning on a lock. Or am I'm wrong?
There is a spinloop in __up_read(), which is probably it.
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