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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [DRM/i915][Bisected] Kernel panic in setup_vector_irq() with HDMI LPE driver while putting offline CPU thread back to online"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103731#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [DRM/i915][Bisected] Kernel panic in setup_vector_irq() with HDMI LPE driver while putting offline CPU thread back to online"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103731">bug 103731</a>
from <span class="vcard"><a class="email" href="mailto:pierre-louis.bossart@linux.intel.com" title="Pierre Bossart <pierre-louis.bossart@linux.intel.com>"> <span class="fn">Pierre Bossart</span></a>
</span></b>
<pre>I can reproduce the system hang on a Zotac PI330 device (CHT)
Can you clarify which debug options you used, I just see a system hang when one
core is put online again and can't get a dmesg as detailed as yours.
FWIW, when using a regular 4.12 Fedora install I also see the problem but I get
an additional message when taking core 1 out:
[ 163.799497] Cannot set affinity for irq 158
[ 163.801408] smpboot: CPU 1 is now offline</pre>
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