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Subject: [Bug 213257] Crash in IGB driver with ALTQ
Date: Wed, 22 Feb 2017 19:23:48 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D213257

--- Comment #25 from freebsd@mcwest.org ---
I can confirm that setting hw.igb.num_queues=3D1 in /boot/loader.conf preve=
nts
crashes when running a kernel compiled with IGB_LEGACY_TX.  I removed the q=
ueue
configuration from my internal igb(4) interface, and netperf's TCP stream t=
est
hasn't been able to provoke a crash after ~30 min.

Assuming the system remains stable, this is a much simpler fix than adding a
new kernel config option.  Ken, if you have the time could you see if this
configuration change eliminates your system instability as well?

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