linux-kernel - 2.6.28-rc9 - ioremap.c:226 warning

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Message-Id: <20081219130114.5fc87cfc.guilherme.m.schroeder@gmail.com>
Date:	Fri, 19 Dec 2008 13:01:14 -0200
From:	Guilherme Malschitzky Schroeder <guilherme.m.schroeder@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: 2.6.28-rc9 - ioremap.c:226 warning - GEM stuff?

Hi,

I'm running 2.6.28-rc9 on Debian sid/experimental with Xorg 1.5.3, intel driver 2.5.1 and i'm getting this warning in dmesg:

resource map sanity check conflict: 0xe0000000 0xefffffff 0xe0000000 0xe1feffff vesafb
------------[ cut here ]------------
WARNING: at arch/x86/mm/ioremap.c:226 __ioremap_caller+0xc8/0x2cd()
Modules linked in: kvm_intel kvm loop i2c_i801
Pid: 2101, comm: Xorg Not tainted 2.6.28-rc9 #10
Call Trace:
 [<ffffffff8022be25>] warn_on_slowpath+0x51/0x75
 [<ffffffff80230b5d>] iomem_map_sanity_check+0x75/0xac
 [<ffffffff8021fba0>] __ioremap_caller+0xc8/0x2cd
 [<ffffffff80360ffd>] i915_gem_entervt_ioctl+0x444/0x4d0
 [<ffffffff80360ffd>] i915_gem_entervt_ioctl+0x444/0x4d0
 [<ffffffff80360bb9>] i915_gem_entervt_ioctl+0x0/0x4d0
 [<ffffffff803548e3>] drm_ioctl+0x1c9/0x253
 [<ffffffff80280fc3>] vfs_ioctl+0x56/0x6c
 [<ffffffff8028135e>] do_vfs_ioctl+0x385/0x3b2
 [<ffffffff80276994>] vfs_write+0x121/0x136
 [<ffffffff802813c8>] sys_ioctl+0x3d/0x5c
 [<ffffffff8020b18b>] system_call_fastpath+0x16/0x1b
---[ end trace 05cd7e3729e479d6 ]---
Xorg:2101 conflicting memory types e0000000-f0000000 write-combining<->uncached-minus
reserve_memtype failed 0xe0000000-0xf0000000, track write-combining, req write-combining
Xorg:2101 conflicting memory types e0000000-f0000000 write-combining<->uncached-minus
reserve_memtype failed 0xe0000000-0xf0000000, track write-combining, req write-combining

I think is something related to GEM as my card supports it.

(II) intel(0): Integrated Graphics Chipset: Intel(R) Mobile Intel® GM45 Express Chipset

It's ok to just ignore?

If you need more info, let me know.

Thanks.

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