[Bug 77511] [ILK/SNB/IVB/BYT/HSW/BDW regression]igt/drv_module_reload causes system hang
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Mon Oct 20 23:32:10 PDT 2014
https://bugs.freedesktop.org/show_bug.cgi?id=77511
Guo Jinxian <jinxianx.guo at intel.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |RESOLVED
Resolution|--- |FIXED
--- Comment #13 from Guo Jinxian <jinxianx.guo at intel.com> ---
(In reply to Paulo Zanoni from comment #12)
> (In reply to Guo Jinxian from comment #11)
> > (In reply to Paulo Zanoni from comment #10)
> > > Same comment as the one I posted on bug #83484:
> > >
> > > Please test https://bugs.freedesktop.org/attachment.cgi?id=107840 , then
> > > post the dmesg here.
> > >
> > > I tested this on BDW, and module_reload works for me on this machine, with
> > > this patch on top of drm-intel-nightly.
> >
> > The failure still able to reproduce with this patch on latest
> > -nightly(2ea23cd593ba60ead60e2f796fae675aa4475b1a)
> >
> >
> > root at x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests#
> > ./drv_module_reload
> > unbinding /sys/class/vtconsole/vtcon1/: (M) frame buffer device
> > module successfully unloaded
> > libkmod: ERROR ../libkmod/libkmod.c:554 kmod_search_moddep: could not open
> > moddep file '/lib/modules/3.17.0_kcloud_43c5c7_20141016+/modules.dep.bin'
> > Killed
> > root at x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# echo $?
> > 137
>
> Does this file exist on your machine? Maybe your system setup is wrong? This
> really looks like a bug in your machine setup, not our driver.
>
> Also, bug 83484 is a duplicate of this one?
Yes, some modules don't install by default on our Ubuntu devices. Execute
commands below then run the tests, the result passes.
apt-get install nfs-common nfs-kernel-server
/etc/init.d/client_module
mount -a
root at x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests#
./drv_module_reload
unbinding /sys/class/vtconsole/vtcon1/: (M) frame buffer device
module successfully unloaded
module successfully loaded again
root at x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# echo $?
0
[root at x-bsw01 tests]#./drv_module_reload
unbinding /sys/class/vtconsole/vtcon1/: (M) frame buffer device
module successfully unloaded
module successfully loaded again
[root at x-bsw01 tests]# echo $?
0
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