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From: John Baldwin <jhb@freebsd.org>
To: freebsd-current@freebsd.org
Subject: Re: panic: resource_list_alloc: resource entry is busy
Date: Wed, 10 Sep 2014 11:06:36 -0400
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 (bigwig.baldwin.cx); Wed, 10 Sep 2014 11:59:02 -0400 (EDT)
Cc: Marcin Cieslak <saper@saper.info>
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On Wednesday, September 10, 2014 12:45:08 PM Marcin Cieslak wrote:
> On my CURRENT as of 6 Sep (r271197):
> 
> What I did was that:
> 
> - kldload i915
> 
> - startx
> 
> During X server start I get the following:
> 
> #10 0xffffffff808c2947 in resource_list_alloc (rl=<value optimized out>,
> bus=<value optimized out>, child=<value optimized out>, type=<value
> optimized out>,
>      rid=<value optimized out>, start=<value optimized out>, end=<value
> optimized out>, count=<value optimized out>, flags=<value optimized out>)
>      at /usr/src/sys/kern/subr_bus.c:3304
> #11 0xffffffff8061ddae in pci_alloc_resource (dev=<value optimized out>,
> child=<value optimized out>, type=<value optimized out>, rid=<value
> optimized out>,
>      start=<value optimized out>, end=<value optimized out>, count=<value
> optimized out>, flags=<value optimized out>) at
> /usr/src/sys/dev/pci/pci.c:4604 #12 0xffffffff808c4420 in
> bus_alloc_resource (dev=0xfffff800026d8800, type=1, rid=0xffffffff811effc8,
> start=632, end=18446744071580876744, count=464, flags=100707968) at
> bus_if.h:284
> #13 0xffffffff80626092 in vga_pci_alloc_resource (dev=0xfffff800026d8800,
> child=<value optimized out>, type=1, rid=0xfffff80008c0b2d4, start=0,
>      end=<value optimized out>, count=18446744071580876744, flags=<value
> optimized out>) at /usr/src/sys/dev/pci/vga_pci.c:318

Can you load the core dump in kgdb and run 'f 13' and 'p *rid'?

-- 
John Baldwin