linux-kernel - Re: bisected pcmcia bug - unable to map card memory on old laptops

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Date:	Fri, 3 Aug 2012 23:53:16 +0200 (CEST)
From:	Piotr Gluszenia Slawinski <curious@...190.internetdsl.tpnet.pl>
To:	Yinghai Lu <yinghai@...nel.org>
cc:	"H. Peter Anvin" <hpa@...or.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	linux-kernel@...r.kernel.org, linux-pcmcia@...ts.infradead.org,
	linux-pci@...r.kernel.org
Subject: Re: bisected pcmcia bug - unable to map card memory on old laptops

>> 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.

system is ISA based :) but i've enabled it for sake of clarity.

logs are attached 
both systems are 3.5 kernel, working is one where i've simply commented 
out the code preventing low mem allocation in resource.c

btw. note that if i would enable pci support in older kernels
bug would most likely resurface even there.

--
View attachment "notworking.log" of type "TEXT/PLAIN" (10810 bytes)

View attachment "working.log" of type "TEXT/PLAIN" (10906 bytes)