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SubjectRe: [PROBLEM] 2.6.22-rc2 panics on x86-64 with slub
On Mon, May 21 2007, Christoph Lameter wrote:
> Ok booting SLUB without "slub_debug" and having
>
> CONFIG_DEBUG_LOCK_ALLOC
> CONFIG_LOCKDEP
>
> will trigger the problem.
>
> So I guess the issue is that lockdep does a slab alloc while we get the
> slab lock during slab alloc?

If I have CONFIG_SLUB_DEBUG set, then box boots fine. If I don't have it
set, then it hard hangs sometime after boot:

[...]
ReiserFS: sda2: Using r5 hash to sort names
VFS: Mounted root (reiserfs filesystem) readonly.
Freeing unused kernel memory: 180k freed

which is usually followed by messages bringing up the network link, etc.
Let me know which tests you want run, or which patches to try.

--
Jens Axboe

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