[Bug 94001] [APL/KBL/BSW/BDW/SKL/IVB/BYT] igt/gem_exec_reloc subtests fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94001

--- Comment #53 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to cprigent from comment #52)
> Created attachment 130385 [details]
> SKL__gem_exec_reloc__gtt-32__without_CONFIG_TRANSPARENT_HUGEPAGE__kern.log
> 
> (In reply to Chris Wilson from comment #51)
> > Could you disable Transparent Huge Page support
> > (CONFIG_TRANSPARENT_HUGEPAGE) and retest? Noticed anon_thp: 3424228kB which
> > I wonder if that is what is causing the mempressue.
> 
> Tested on SKL twice, I'm reproducing it (new kernel log attached).
> While checking my kernel config I saw:
> $ cat /boot/config-$(uname -r) |grep TRANSPARENT_HUGEPAGE
>   CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
>   CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD=y
>   # CONFIG_TRANSPARENT_HUGEPAGE is not set
> Should I deactivate all of them?

No need. CONFIG_TRANSPARENT_HUGEPAGE was enough and says that the thp aren't a
factor here.

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