Re: [BUG] Lockdep recursive locking in kmem_cache_free

From: Christoph Lameter
Date: Fri Jul 28 2006 - 16:16:42 EST

On Fri, 28 Jul 2006, Thomas Gleixner wrote:

> On Fri, 2006-07-28 at 08:35 -0700, Christoph Lameter wrote:
> > On Fri, 28 Jul 2006, Thomas Gleixner wrote:
> >
> > > If you need more info, I can add debugs. It happens every bootup.
> >
> > Could you tell me why _spin_lock and _spin_unlock seem
> > to be calling into the slab allocator? Also what is child_rip()? Cannot
> > find that function upstream.
> arch/x86_64/kernel/entry.S

Ah. Ok wrong arch. Why does _spin_unlock_irq call child_rip and then end
up in the slab allocator?

Why does _spin_lock call kmem_cache_free?

Is the stack trace an accurate representation of the calling sequence?

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at