On Thu, Feb 28, 2013 at 6:59 PM, Sedat Dilek sedat.dilek@gmail.com wrote:
On Thu, Feb 28, 2013 at 6:33 PM, Paulo Zanoni przanoni@gmail.com wrote:
Hi
2013/2/28 Sedat Dilek sedat.dilek@gmail.com:
On Thu, Feb 28, 2013 at 6:12 PM, Sedat Dilek sedat.dilek@gmail.com wrote:
On Thu, Feb 28, 2013 at 3:31 PM, Paulo Zanoni przanoni@gmail.com wrote:
Hi
2013/2/28 Chris Wilson chris@chris-wilson.co.uk:
On Thu, Feb 28, 2013 at 12:06:28AM +0100, Sedat Dilek wrote: > On Wed, Feb 27, 2013 at 11:36 PM, Sedat Dilek sedat.dilek@gmail.com wrote: > > Hi, > > > > I am seeing this also on Linux-Next. > > > > /var/log/kern.log:Feb 27 22:52:35 fambox kernel: [ 28.202381] > > [drm:intel_dp_aux_wait_done] *ERROR* dp aux hw did not signal timeout > > (has irq: 1)! > > /var/log/kern.log:Feb 27 22:52:35 fambox kernel: [ 28.210588] > > [drm:intel_dp_aux_wait_done] *ERROR* dp aux hw did not signal timeout > > (has irq: 1)! > > > > /var/log/kern.log.1:Feb 22 07:36:04 fambox kernel: [ 27.408280] > > [drm:intel_dp_aux_wait_done] *ERROR* dp aux hw did not signal timeout > > (has irq: 1)! > > > > This seems to be hard reproducible... > > Laptop-LCD... Sandybridge Mobile-GT2. > > > > Is there a way to force the error? > > > > Possible patch see [1]. > > > > - Sedat - > > > > [1] https://patchwork.kernel.org/patch/2192721/
That was:
if (!done) {status = I915_READ_NOTRACE(ch_ctl);DRM_ERROR("dp aux hw did not signal timeout (has irq:%i), status=%08x!\n",
has_aux_irq, status);}You applied
if (!done) {status = I915_READ_NOTRACE(ch_ctl);DRM_ERROR("dp aux hw did not signal timeout (has irq:%i), status=%08x!\n",
has_aux_irq, status);{In addition to this, after the problem happens can you please dump the registers 0x44008 (DEIIR) and 0xC4008 (SDEIIR)? You can do this either by running intel-reg-read (from intel-gpu-tools) or by changing the DRM_ERROR above to also print the result of I915_READ(0x44008) and I915_READ(0xC4008).
Do I need a specific version of intel-gpu-tools? Ubuntu/precise has v1.2 in its archives - sufficient? Note: The error was twice after dozenz of Linux-Next kernel builds.
- Sedat -
Installed intel-gpu-tools.
# intel_reg_read Usage: intel_reg_read [-f | addr] -f : read back full range of registers. WARNING! This could be danger to hang the machine! addr : in 0xXXXX format
# intel_reg_read 0x44008 Couldn't map MMIO region: Resource temporarily unavailable
[ 368.281707] intel_reg_read:3657 conflicting memory types f0000000-f0400000 uncached-minus<->write-combining [ 381.521912] intel_reg_read:3658 conflicting memory types f0000000-f0400000 uncached-minus<->write-combining [ 401.136291] intel_reg_read:3659 conflicting memory types f0000000-f0400000 uncached-minus<->write-combining
Wrong i-g-t version? Missing enabled kernel-config option? Boot with i915 debug enabled?
Just build the version from git and it should work (http://cgit.freedesktop.org/xorg/app/intel-gpu-tools/).
NO.
$ git clone git://anongit.freedesktop.org/xorg/app/intel-gpu-tools intel-gpu-tools-git
$ cd intel-gpu-tools-git/
$ ./autogen.sh --disable-dumper <--- requires swig2.0 and python >=3.x
$ sudo ./tools/intel_reg_read 0x44008 0x44008 : 0x0
$ sudo ./tools/intel_reg_read 0xC4008 0xC4008 : 0x0
$ sudo ./tools/intel_reg_dumper > /tmp/intel_reg_dumper.txt <--- see attachment
Does this help you?
Ping Paulo.
- Sedat -
- Sedat -
- Sedat -
If you conclude that the value of 0x44008 is 0x0 while the value of 0xC4008 is not, then this patch should help: https://patchwork.kernel.org/patch/2177841/
That second '{' is the source of the compile error. -Chris
-- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
-- Paulo Zanoni
-- Paulo Zanoni