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<body><span class="vcard"><a class="email" href="mailto:daniel@ffwll.ch" title="Daniel Vetter <daniel@ffwll.ch>"> <span class="fn">Daniel Vetter</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [HSW]igt/gem_seqno_wrap randomly fail and cause system hang with call trace"
href="https://bugs.freedesktop.org/show_bug.cgi?id=67198">bug 67198</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
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<tr>
<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>NEEDINFO
</td>
</tr>
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<td style="text-align:right;">Assignee</td>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
<td>ben@bwidawsk.net
</td>
</tr></table>
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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [HSW]igt/gem_seqno_wrap randomly fail and cause system hang with call trace"
href="https://bugs.freedesktop.org/show_bug.cgi?id=67198#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [HSW]igt/gem_seqno_wrap randomly fail and cause system hang with call trace"
href="https://bugs.freedesktop.org/show_bug.cgi?id=67198">bug 67198</a>
from <span class="vcard"><a class="email" href="mailto:daniel@ffwll.ch" title="Daniel Vetter <daniel@ffwll.ch>"> <span class="fn">Daniel Vetter</span></a>
</span></b>
<pre>Can you please decode the exact line where the BUG happened?
When looking at the backtrace the important part is
[ 59.706535] RIP: 0010:[<ffffffffa00733f5>] [<ffffffffa00733f5>]
i915_gem_reset+0x11a/0x24c [i915]
The address can be decoded to line numbers with
addr2line -e drivers/gpu/drm/i915/i915.ko i915_gem_reset+0x11a
It is of utmost importance that the hex offset you pass to addr2line from the
backtrace is from running the exact i915.ko you pass it. Otherwise the line
number will be unusable (and often is really misleading).
Otherwise it seems to die in
static inline unsigned long
i915_gem_obj_ggtt_offset(struct drm_i915_gem_object *o)
{
BUG_ON(list_empty(&o->vma_list));
return __i915_gem_obj_to_vma(o)->node.start;
}
so one for Ben.</pre>
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