On Fri, Aug 3, 2012 at 8:32 AM, Piotr Gluszenia Slawinski <[email protected]> wrote: > 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 <[email protected]> > 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 <[email protected]> > Signed-off-by: Bjorn Helgaas <[email protected]> > Signed-off-by: Jesse Barnes <[email protected]> > > :040000 040000 58cf7334131f8ad10bc814e56ef6538781b01add > 2434a5e5da4eabf3e413ac694c0cdeef91e17680 M arch > > bug is present in all kernels since late 2.6.36
can you send the boot log with working and not working kernel? Please make sure you have PCI_DEBUG set in your config. Thanks Yinghai -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
