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SubjectRe: 2.6.21-mm1 and now 2.6.21-git: SLUB Crashes on boot
On Tue, 8 May 2007, Kevin Winchester wrote:

> Here's the dmesg of the slub_debug run, I'll try the patch next:

Ok someone wrote to an object after it was freed. Not slubs problem.

> [ 1.367129] Object 0xffff810001bdecd0: 80 b7 b1 01 00 81 ff ff 6b 6b
> 6b 6b 6b 6b 6b 6b .·±...kkkkkkkk

The first 8 bytes of the freed object were overwritten.

> [ 1.374455] Last alloc: cryptomgr_notify+0x28/0x190 jiffies_ago=0 cpu=0
> pid=1
> [ 1.374611] Last free : cryptomgr_probe+0x85/0xb0 jiffies_ago=0 cpu=0
> pid=405

Here are some potential candidates that have recently handled the object.
That was less than a jiffy ago. So very recent.

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