Hello. I've bisected bug which makes old laptops fail to detect
(any) pcmcia cards with message 'unable to map card memory!' .
commit in question is :
30919b0bf356a8ee0ef4f7d38ca8ad99b96820b2 is the first bad commit
commit 30919b0bf356a8ee0ef4f7d38ca8ad99b96820b2
Author: Bjorn Helgaas <bjorn.helg...@hp.com>
Date: Thu Dec 16 10:38:51 2010 -0700
x86: avoid low BIOS area when allocating address space
This implements arch_remove_reservations() so allocate_resource() can
avoid any arch-specific reserved areas. This currently just avoids
the
BIOS area (the first 1MB), but could be used for E820 reserved areas
if
that turns out to be necessary.
We previously avoided this area in pcibios_align_resource(). This
patch
moves the test from that PCI-specific path to a generic path, so *all*
resource allocations will avoid this area.
Acked-by: H. Peter Anvin <h...@zytor.com>
Signed-off-by: Bjorn Helgaas <bjorn.helg...@hp.com>
Signed-off-by: Jesse Barnes <jbar...@virtuousgeek.org>
:040000 040000 58cf7334131f8ad10bc814e56ef6538781b01add
2434a5e5da4eabf3e413ac694c0cdeef91e17680 M arch
bug is present in all kernels since late 2.6.36
--
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