[Bug 110586] [CI][DRMTIP] igt at runner@aborted - fail - TAINT_BAD_PAGE: Bad page reference or an unexpected page flags.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110586

--- Comment #6 from Lakshmi <lakshminarayana.vudum at intel.com> ---
(In reply to Daniel Vetter from comment #5)
> Please don't do this, by usual bug filing standards our reports here are
> completely unactionable and this might as well sound like a bad machine or
> our driver bug.
> 
> If you want to file a bug with a foreign subsystem please make damn sure you
> have solid proof it's a bug with them, and not just a hunch.
> 
> Quick comment from Dave Airlie on irc:
> 
> * airlied also guesses it's memory corrupt or some pages ending up in wrong
> state
> <airlied> I doubt mm is at fault
> <danvet> yeah
> <airlied> we marked something unvevictable and freed it?
> 
> See the dmesg backtrace
> 
> <4>[  114.390971] page dumped because: PAGE_FLAGS_CHECK_AT_PREP flag set
> <1>[  114.390972] bad because of flags: 0x100000(unevictable)
> 
> drm/i915 does mark pages as unevictable, so this very much could be our own
> bug. Or bad hw.
> 
> Internally it's not a big deal if our triaging doesn't really analyze the
> bug, but that stops being fun as soon as we involve non-intel people.
> 
> Lakshmi, can you pls close the kernel bugzilla entry with a quick "oops sry,
> need to look at this more first internally".
> 
> Thanks, Daniel

Thanks for pointing this. Yes, I will double check or be more cautious when
creating an external bug. For now I have closed the kernel bug.

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