Re: Linux 2.6.25-rc2

[Ingo Molnar <mingo@elte.hu>]

* Torsten Kaiser <just.for.lkml@googlemail.com> wrote:

> On Feb 15, 2008 10:23 PM, Linus Torvalds <torvalds@linux-foundation.org> wrote:
> >
> > Ok,
> >  this kernel is a winner.
> 
> Sadly not for me:
> [ 5282.056415] ------------[ cut here ]------------
> [ 5282.059757] kernel BUG at lib/list_debug.c:33!
> [ 5282.062055] invalid opcode: 0000 [1] SMP
> [ 5282.062055] CPU 3

hm. Your crashes do seem to span multiple subsystems, but it always 
seems to be around the SLUB code. Could you try the patch below? The 
SLUB code has a new optimization and i'm not 100% sure about it. [the 
hack below switches the SLUB optimization off by disabling the CPU 
feature it relies on.]

	Ingo

------------->
 arch/x86/Kconfig |    4 ----
 1 file changed, 4 deletions(-)

Index: linux/arch/x86/Kconfig
===================================================================
--- linux.orig/arch/x86/Kconfig
+++ linux/arch/x86/Kconfig
@@ -59,10 +59,6 @@ config HAVE_LATENCYTOP_SUPPORT
 config SEMAPHORE_SLEEPERS
 	def_bool y
 
-config FAST_CMPXCHG_LOCAL
-	bool
-	default y
-
 config MMU
 	def_bool y