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From: Pekka Enberg <penberg@cs.helsinki.fi>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Patrick McHardy <kaber@trash.net>,
	htmldeveloper@gmail.com, bugme-daemon@bugzilla.kernel.org,
	netdev@vger.kernel.org, clameter@sgi.com
Subject: Re: [Bug 10575] New: WARNING: at mm/slub.c:2444
Date: Tue, 29 Apr 2008 22:39:13 +0300	[thread overview]
Message-ID: <48177961.3030204@cs.helsinki.fi> (raw)
In-Reply-To: <20080429123741.bce81cf8.akpm@linux-foundation.org>

Andrew Morton wrote:
> Sorry, I confused it with a similar-looking USB trace.  Pekka added some
> additional debug at that site which might help here - it will tell us the
> name of the slab cache:
> 
> void kmem_cache_destroy(struct kmem_cache *s)
> {
> 	down_write(&slub_lock);
> 	s->refcount--;
> 	if (!s->refcount) {
> 		list_del(&s->list);
> 		up_write(&slub_lock);
> 		if (kmem_cache_close(s)) {
> 			printk(KERN_ERR "SLUB %s: %s called for cache that "
> 				"still has objects.\n", s->name, __func__);
> 			dump_stack();
> 		}
> 		sysfs_slab_remove(s);
> 	} else
> 		up_write(&slub_lock);
> }
> 			
> that was merged into mainline yesterday.

Christoph added even nicer debugging code that dumps the objects in the 
cache:

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=33b12c38134e95e5afa73214af6f49abd7b8418e

  reply	other threads:[~2008-04-29 19:41 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <bug-10575-27@http.bugzilla.kernel.org/>
2008-04-29 15:22 ` [Bug 10575] New: WARNING: at mm/slub.c:2444 Andrew Morton
2008-04-29 19:14   ` Patrick McHardy
2008-04-29 19:37     ` Andrew Morton
2008-04-29 19:39       ` Pekka Enberg [this message]
2008-04-29 20:01       ` Pekka Enberg
2008-04-29 23:00         ` Christoph Lameter

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