Messages in this thread |  | | | Date | Thu, 9 Jul 2009 12:10:59 -0400 | | From | Dave Jones <> | | Subject | Re: [PATCH 1/3] Increase lockdep limits: MAX_STACK_TRACE_ENTRIES |
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On Thu, Jul 09, 2009 at 10:02:36AM +0200, Peter Zijlstra wrote: > On Thu, 2009-07-09 at 00:39 -0400, Dave Jones wrote: > > On Wed, Jul 08, 2009 at 08:36:04PM +0200, Peter Zijlstra wrote: > > > Looking at a lockdep dump hch gave me I can see that that is certainly > > > possible, I see tons of very deep callchains. > > > > > > /me wonders if we're getting significantly deeper.. > > > > Looking at /proc/lockdep, I'm curious.. > > Take a look at http://davej.fedorapeople.org/lockdep > > scroll down to c12c0924 > > > > What's up with all those old_style_spin_init's ? > > What kernel are you running?
.31rc2
> Does your lib/dma_debug.c:dma_debug_init() > have spin_lock_init() in that HASH_SIZE loop?
it's doing it by hand..
717 for (i = 0; i < HASH_SIZE; ++i) { 718 INIT_LIST_HEAD(&dma_entry_hash[i].list); 719 dma_entry_hash[i].lock = SPIN_LOCK_UNLOCKED; 720 }
Dave
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