Re: panic: resource_list_alloc: resource entry is busy

On Friday, September 12, 2014 08:57:55 PM Marcin Cieslak wrote:
> On Fri, 12 Sep 2014, John Baldwin wrote:
> >>      at /usr/src/sys/dev/pci/vga_pci.c:318
> >> 
> >> 318		return (bus_alloc_resource(dev, type, rid, start, end, count,
> > 
> > flags));
> > 
> >> Current language:  auto; currently minimal
> >> (kgdb) p *rid
> >> $1 = 0
> > 
> > Hmm, type 1 is SYS_RES_IRQ.  IRQ resources should not be marked reserved.
> > 
> > Oh, some other child of vgapci has already allocated the IRQ.  That seems
> > odd.
> > 
> > Can you get 'devinfo -r' output before you kldload i915kms and again after
> > doing the kldload?  (No need to run startx)
> 
> Please note I originally loaded "i915.ko", not "i915kms.ko"

Oh, that is probably your problem.  X loaded i915kms automatically and
i915 and i915kms do not get along.  i915 had already allocated the IRQ
when i915kms tried to alloc the same IRQ causing the issue.

-- 
John Baldwin