<html>
<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body>
<p>
<div>
<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [skl] assertion hits"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111197#c20">Comment # 20</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [skl] assertion hits"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111197">bug 111197</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>(In reply to Jiri Slaby from <a href="show_bug.cgi?id=111197#c19">comment #19</a>)
<span class="quote">> (In reply to Chris Wilson from <a href="show_bug.cgi?id=111197#c1">comment #1</a>)
> > assert(!get_private(back)->bo->active_scanout);
>
> I have just hit it even after the move:
> #5 0x00007f00322cb166 in sna_dri2_schedule_swap (client=0x55f38c48fa50,
> draw=0x55f38cc13f70, front=0x55f38c82d200, back=0x55f38ccc6fa0,
> target_msc=0x7ffd7ecee278, divisor=0, remainder=0, func=0x55f38ba5b7c0
> <DRI2SwapEvent>, data=0x55f38cc13f70) at sna_dri2.c:3339
> #6 0x000055f38ba5a90d in DRI2SwapBuffers
> (client=client@entry=0x55f38c48fa50, pDraw=0x55f38cc13f70,
> target_msc=<optimized out>, divisor=0, remainder=0,
> swap_target=swap_target@entry=0x7ffd7ecee318, func=0x55f38ba5b7c0
> <DRI2SwapEvent>, data=0x55f38cc13f70) at dri2.c:1182
> #7 0x000055f38ba5bd5a in ProcDRI2SwapBuffers (client=0x55f38c48fa50) at
> dri2ext.c:424
> #8 ProcDRI2Dispatch (client=0x55f38c48fa50) at dri2ext.c:621
> #9 0x000055f38b9344b4 in Dispatch () at dispatch.c:478
>
> It took a day to hit it -- in the meantime, I disabled full debug, so no
> more info I have. It happened during switch of virtual desktops.</span >
Bah. That's going to be nasty; it's definitely in the "should never happen"
category. It's at times like that you wish there was a trace_printk.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the QA Contact for the bug.</li>
</ul>
</body>
</html>