Panic in a recent kernel (cardbus/pci related ?)

Wojciech A. Koszek wkoszek at
Wed Dec 30 17:20:48 UTC 2009

On Wed, Dec 30, 2009 at 10:25:56AM -0500, John Baldwin wrote:
> On Wednesday 30 December 2009 9:28:33 am John Baldwin wrote:
> > On Friday 11 December 2009 12:15:27 am Thierry Herbelot wrote:
> > > Hello,
> > > 


> This is one possible hack.  It instructs the PCI bus to completely remove the
> resource for the CIS.  While looking at this I found some other bugs (the code to
> disable decoding in the ROM BAR didn't actually work for example) and have come up
> with a larger patch.  It does a few things:
> 1) Fixes bus_generic_rl_(alloc|release)_resource() to not try to fetch a resource
> list for a grandchildren.
> 2) Add full support for device ROM BARs to the PCI bus and remove the device ROM
> hacks from the cardbus driver now that PCI manages them.
> 3) Use a resource_list_unreserve() when purging resources from a cardbus card when
> it is removed as this is a bit cleaner.  Arguably the PCI bus driver should have a
> 'delete all resources' method that does this instead (hotplug PCI would need to
> use it).
> 4) Remove unused pci_release_resource().
> The patch is available at

Hi John,

I took my current sources:

Which come from:

	r200811: Mon Dec 21 22:11:17 UTC 2009
	wkoszek at

And I have applied your patch against src/sys/.... This is what I got when my
Atheros-based CardBus WiFi card got inserted:

Wojciech A. Koszek
wkoszek at

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