Re: 4.3-rc3 BAR allocation problems on multiple machines

Bjorn Helgaas
2016-10-26T21:51:06Z

Hi Meelis,

On Wed, Oct 07, 2015 at 12:25:19PM +0300, Meelis Roos wrote:
> First I noticed that on Sun Netra t1-150 (sparc64 CPU), PCI allocation
> was failing for qla1280 scsi driver. Reading dmesg uncovered "can't
> claim BAR" errors. Looking for this in my other test machines I see more
> of them - on many sparc64 machines and some on x86.
>
> In another thread for "Resource allocation cleanup for v4.4", Yinghai Lu
> asked for full dmesg to solve another similar case. So to help
> understanding this one, here are the dmesgs of my machines:
>
> sparc64 machines:
>
> http://kodu.ut.ee/~mroos/dm/dm.t1-105
> http://kodu.ut.ee/~mroos/dm/dm.t1-200
> http://kodu.ut.ee/~mroos/dm/dm.v120
> http://kodu.ut.ee/~mroos/dm/dm.v210
> http://kodu.ut.ee/~mroos/dm/dm.v240
> http://kodu.ut.ee/~mroos/dm/dm.sb100
>
> amd64 machine:
>
> http://kodu.ut.ee/~mroos/dm/dm.x2100

I'm looking through the PCI bugs in bugzilla.kernel.org and came
across one that I opened for this issue
(https://bugzilla.kernel.org/show_bug.cgi?id=117191)

Is this still an issue? I've applied some patches from Yinghai, but I
know there are a bunch more in the queue, so I'm trying to figure out
what's fixed and what's still broken.

Bjorn