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gem_flink_race and prime_self_import have subtests which read the
number of open gem objects from debugfs to determine if objects have
leaked during the test. However the test can fail sporadically if
the number of gem objects changes due to other process activity.
This patch introduces a change to check the number of gem objects
several times to filter out any fluctuations.
v2: Moved the common code to a library and made the loop android
specific (Daniel Vetter)
v3: Renamed get_stable_obj_count -> igt_get_stable_obj_count
Signed-off-by: Derek Morton <derek.j.morton@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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Apply the new API to all call sites within the test suite using the following
semantic patch:
// Semantic patch for replacing drm_open_any* with arch-specific drm_open_driver* calls
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identifier i =~ "\bdrm_open_any\b";
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- i()
+ drm_open_driver(DRIVER_INTEL)
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identifier i =~ "\bdrm_open_any_master\b";
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- i()
+ drm_open_driver_master(DRIVER_INTEL)
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identifier i =~ "\bdrm_open_any_render\b";
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- i()
+ drm_open_driver_render(DRIVER_INTEL)
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identifier i =~ "\b__drm_open_any\b";
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- i()
+ __drm_open_driver(DRIVER_INTEL)
Signed-off-by: Micah Fedke <micah.fedke@collabora.co.uk>
Signed-off-by: Thomas Wood <thomas.wood@intel.com>
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Add a header that includes all the headers for the library. This allows
reorganisation of the library without affecting programs using it and
also simplifies the headers that need to be included to use the library.
Signed-off-by: Thomas Wood <thomas.wood@intel.com>
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By explicitly quiescing the GPU we force it to a known and ideally
identical state when counting objects. In particular, this should make
the batch-pool status the same and not cause us to detect a negative
leak.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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The integer comparison macros give us better error output by including
the actual values that failed the comparison.
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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drm_open_any always returns a valid file descriptor, so there is no need
to check the return value.
Signed-off-by: Thomas Wood <thomas.wood@intel.com>
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Add more test descriptions based on exiting comments.
Signed-off-by: Thomas Wood <thomas.wood@intel.com>
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Signed-off-by: Thomas Wood <thomas.wood@intel.com>
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All the cases that simply dump some debug information and couldn't be
converted to some of the fancier macros.
Some information output removed when it's redundant with the subtest
status.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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We need to add one drm_open_any() before getting the object counts
as first call to drm_open_any() allocates file descriptors for
exit handlers and thus is not symmetrical.
The regression, assymmetric behaviour, was introduced in:
commit 2f2c491cf3167befe7c79e4b17afb4f6284dfc84
Author: Mika Kuoppala <mika.kuoppala@intel.com>
Date: Fri Mar 28 10:52:46 2014 +0200
lib/drmtest: don't dup quiescent fd
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=77867
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=77875
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
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I've left unistd.h in it - it's not strictly required but most users
of drmtest.h want it for the open helpers, and then you kinda need to
close that file descriptor again ...
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Brought a few missing headers to light in ioctl_wrappers.h, too.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Same thing that was done for prime_self_import.
v2: Move igt_drop_caches_set() call inside get_object_count() to make
it clearer why we want this.
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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In the past new testcases with subtest often forgot to add the call to
igt_exit at the end of their main() function. That is now caught with
a bit more obnoxious asserts, but it's still a nuissance.
This little igt_main macro takes care of that (and also of calling the
subtest machinery initialization code correctly).
If no one objects I'll roll this out for all the simple cases (i.e.
those tests that don't have additional argv parsing on top of the
subtest machinery).
v2: Roll it out across the board.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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It's unused. Also most of our tests failed to ask for the right type
of drm fd anyway. So it's imo better to just let them fall over when
they don't get master but want it, like they already do today.
This also allows us to garbage-collect the master parameter to
drm_get_card and associated code.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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This is mostly important to get the SKIP reporting right, but I've
found a few stragglers that wanted to get converted over to the igt
result reporting completely.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Just a wholesale rollout for now, we can refine later on.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Requested-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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The _block postfix meant to convey that a C statement/block must
follow can be misread as the verb to block. So drop it.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Doesn't do more than an if (drmtest_run_test(name)) right now, but
as soon as we get a bit of infrastructure to handle test failures and
skipping, this will get more interesting.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Leak test that leaks ...
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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They all race against each another, no worker-slave relationship
like in the other subtest.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Oops, failed to git add.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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- Enable subtest support.
- Add a check for the same flink name in the racing threads, which is
an issue one of my recent patches actually fixes.
- Add the test I've actually wanted to write which races an flink
against gem close (with no open in between). That one does indeed
leak.
- Readd the leak check, but note that this needs a fixed kernel.
Otherwise the leak counter will be utter garbage.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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This reverts commit bd927662fcfb1443c5982fb04cc694f78e1c8d53.
It's bogus.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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And fail the test if the leak count is bigger than 0.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Oops.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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This exercises a race in the flink name descruction of the current drm
gem core. When racing a gem close with a gem open the open can sneak
in and cause the kernel to leak the flink name and its reference.
This results in leaked gem objects that won't get reaped even at drm
file close time. On my 2 core/4 threads snb machine this leaks on the
order of 1k objects per second.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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