Messages in this thread | | | Date | Tue, 22 Apr 2008 15:10:20 +0200 | From | Ingo Molnar <> | Subject | Re: [bug] SCSI/SLUB - latest -git: WARNING: at mm/slub.c:2443 kmem_cache_destroy, scsi_put_host_cmd_pool() |
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* James Bottomley <James.Bottomley@HansenPartnership.com> wrote:
> Thanks ... it looks like we may have trouble from devices that alter > the unchecked isa dma flag after scsi_host_alloc. The guilty parties > appear to be gdth, eata, u14-34f, ultrastor, BusLogic and advansys. > > The trouble is that if you alloc the host with it one way and free it > with it the other, the wrong freelist is used and the ref counts are > invalid. > > Try this pseudo fix: it avoids allocating the freelist until add time > (by which time they should all have fixed the flag). It still doesn't > change the fact that the host is allocated in the wrong region, but > that shouldn't matter too much.
ok - do you intend to push this pseudo-fix upstream? If yes then please consider it fixed as far as i'm concerned - i'll re-reply if the warning resurfaces (it wasnt lethal to the bootup otherwise). Or if you've got some other approach/fix then i can test that too.
Ingo
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