On Wed, 2008-03-12 at 11:51 -0600, Matthew Wilcox wrote: > On Wed, Mar 12, 2008 at 10:46:45AM -0700, Andrew Morton wrote: > > On Wed, 12 Mar 2008 18:25:37 +0530 Kamalesh Babulal <[EMAIL PROTECTED]> > > wrote: > > Beats me. Maybe we're still enabling interrupts too early. But the new > > semaphore code got fixed (didn't it?) > > On the 7th, according to my records. Easy to check -- look in > kernel/semaphore.c and see whether down() is using spin_lock_irqsave > (good) or spin_lock_irq (bad).
down() looks OK, but there's still a spin_lock_irq() in __down_common(), although I don't know if it makes sense for us to be in __down() at that stage. cheers -- Michael Ellerman OzLabs, IBM Australia Development Lab wwweb: http://michael.ellerman.id.au phone: +61 2 6212 1183 (tie line 70 21183) We do not inherit the earth from our ancestors, we borrow it from our children. - S.M.A.R.T Person
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