Re: kern/46328 (Switching into and out of promiscuous mode causes lockup)

["David H. Gutteridge" <dhgutteridge%sympatico.ca@localhost>]

The following reply was made to PR kern/46328; it has been noted by GNATS.

From: "David H. Gutteridge" <dhgutteridge%sympatico.ca@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/46328 (Switching into and out of promiscuous mode causes
 lockup)
Date: Fri, 07 Apr 2017 17:06:09 -0400

 I can duplicate this reliably running amd64/7.99.67 in QEMU, when the
 emulated network card is a rtl8139 (re[4], in other words). I cannot
 duplicate it when I use vioif(4) instead. (I imagine given the choices
 QEMU offers, no one would ordinarily pick a Realtek card, so this
 isn't normally encountered.) This is on a Fedora 25 host with QEMU
 2.7.1.
 
 The catch is, I have to run the full test suite to trigger it. If I
 just run this particular test in isolation, it passes. If I run the
 full test suite, the system consistently hangs when it gets to this
 test, and I have to power cycle the VM. (I guess all the additional
 networking activity that occurs in prior tests somehow contributes to
 this state.)
 
 Not a problem for me, since I just use vioif(4), but I thought I'd
 mention it.
 
 Dave