[Bug 79237] igt/gem_userptr_blits fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=79237

--- Comment #8 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to comment #7)
> > Please attach the usual dmesg and run with IGT_LOG_LEVEL=debug to explain
> > how it thinks you only have less than 2GiB of ram.
> 
> I don't know how to use parameter "IGT_LOG_LEVEL=debug", and the device I
> used was 2GiB ram. but this bug is able to reproduce on other device too.
> Please check the output below and the dmesg in attachment.

It's an environment variable, so use as:

$ IGT_LOG_LEVEL=debug ./gem_userptr_blits

The missing memory check should be performed by:

commit 52ac9a4b57f20f2dc019a973237f2f97ddb0ebf3
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Mon Jul 14 10:30:36 2014 +0100

    igt/gem_userptr_blits: Add missing RAM check before coherency tests

    References: https://bugs.freedesktop.org/show_bug.cgi?id=79237
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

That should be enough to stop it from running out of memory.

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