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SubjectRe: 2.6.0-test4: blkdev_requests "memory before object was overwritten" and oops in __iget
Oleg Drokin <> wrote:
> Found one of my test boxes freezed today (or may be even yesterday).
> That's what was in logs:
> Aug 25 00:50:37 dwarf kernel: [drm] DMA Cleanup
> Aug 25 21:46:31 dwarf kernel: mtrr: base(0xf8000000) is not aligned on a size(0x180000) boundary
> Aug 25 21:46:31 dwarf kernel: [drm] Using POST v1.2 init.
> Aug 25 21:46:31 dwarf kernel: PCI: Found IRQ 11 for device 0000:00:02.0
> Aug 25 21:46:39 dwarf kernel: slab error in cache_alloc_debugcheck_after(): cache `blkdev_requests': memory before object was overwritten

Setting CONFIG_DEBUG_PAGEALLOC might help us trap this.

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