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Date: Fri, 25 Jan 2002 11:39:10 -0800
From: David Brownell <david-b@pacbell.net>
Subject: Re: OOPS in 2.5.3-pre5 -- kernel BUG at slab.c:1101!
To: Miles Lane <miles@megapathdsl.net>, Ingo Molnar <mingo@elte.hu>,
        Greg KH <greg@kroah.com>
Cc: LKML <linux-kernel@vger.kernel.org>
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> David and Greg, I think this OOPS may be related to the
> new EHCI/ohci-hcd code.  This machine has an early NEC
> USB 2.0 host controller and an USB OHCI host controller:

Configure with CONFIG_DEBUG_SLAB and it should go
away.  Or, tweak drivers/usb/hcd/ohci-mem.c line 45 to
be #ifdef CONFIG_DEBUG_SLAB.  A patch is pending,
but it's included with some other updates to that code
and I wanted to re-test.

Or a more fundamental fix would be to remove those
#ifdefs from the EHCI and OHCI HCD code and just
change drivers/pci/pci.c at about line 1065 to poison
based on CONFIG_DEBUG_SLAB rather than using
CONFIG_PCIPOOL_DEBUG ... that #ifdef predates
CONFIG_DEBUG_SLAB.

- Dave


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