Re: kernel BUGs when removing largish files with the SLOB allocator
From: David Howells
Date: Mon Sep 04 2006 - 06:19:01 EST
Aubrey <aubreylee@xxxxxxxxx> wrote:
> Is there any solution/patch to fix the issue?
Make the SLOB allocator mark its pages PG_slab, just like the SLAB allocator
does. I think this should be okay as the SLOB allocator and the SLAB
allocator seem to be mutually exclusive.
Using PG_slab would also give an instant check to things like SLOB's kfree().
> +#ifdef CONFIG_SLAB
> if (PageSlab(page))
> +#endif
This is not a valid workaround as the object won't necessarily have been
allocated from a slab (shared ramfs mappings and SYSV SHM for example). You
may not pass to ksize() objects allocated by means other than SLAB/SLOB.
David
--
VGER BF report: H 1.12398e-05
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