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* Marco Berizzi <pupilla@hotmail.com> wrote: > Herbert Xu wrote: > > > On Fri, May 09, 2008 at 11:50:00AM +0200, Marco Berizzi wrote: > > > > > > I have rebooted the two boxes with slub_debug. > > > This is the output taken with network console. > > > Herbert does it help you? > > > > > > BUG: unable to handle kernel paging request at 6b6b6b9f > > > > Unfortunately this just confirms that your skb has been freed > > prematurely because 6b is the poison value. > > > > However, it doesn't point us at the offender. > > :-(( you could try x86.git and enable CONFIG_KMEMCHECK, which catches all sorts of memory corruption bugs at its root: http://people.redhat.com/mingo/x86.git/README it's for 32-bit currently, and depends on the following CONFIG details in your .config: depends on X86_32 depends on !X86_USE_3DNOW depends on !CC_OPTIMIZE_FOR_SIZE depends on !DEBUG_PAGEALLOC && SLUB note that CONFIG_DEBUG_PAGEALLOC=y will catch a few types of corruption too. Note that KMEMCHECK and DEBUG_PAGEALLOC are exclusive. Ingo | ||||||||||||
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