Messages in this thread | | | Date | Fri, 29 Aug 2008 19:39:57 +0200 | From | "Rafał Miłecki" <> | Subject | Re: [PATCH RFC] x86: check for and defend against BIOS memory corruption |
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2008/8/29 Hugh Dickins <hugh@veritas.com>: > Here's my version of Jeremy's patch, that I've now tested on my machines, > as x86_32 and as x86_64. It addresses none of the points Alan Cox made, > and it stays silent for me, even after suspend+resume, unless I actually > introduce corruption myself. Omits Jeremy's check in fault.c, but does > a check every minute, so should soon detect Rafał's HDMI corruption > without any need to suspend+resume.
Your periodic test works fine:
Corrupted low memory at ffff88000000be9c (be9c phys) = b02a0004 <IRQ> [<ffffffff8020fc9b>] check_for_bios_corruption+0x93/0x9f [<ffffffff8020fca7>] ? periodic_check_for_corruption+0x0/0x25 [<ffffffff8020fcb0>] periodic_check_for_corruption+0x9/0x25
By the way I confirmed this bug on Sony Vaio FW11M (my one is FW11S). Probably more machines from FW11* are affected.
-- Rafał Miłecki
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