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Re: port-evbarm/55504: evbarm-earmv7hf testbed hangs during sbin/ifconfig/t_repeated_updown test
The following reply was made to PR port-evbarm/55504; it has been noted by GNATS.
From: Andreas Gustafsson <gson%gson.org@localhost>
To: Jukka Ruohonen <jruohonen%iki.fi@localhost>, gnats-bugs%netbsd.org@localhost
Subject: Re: port-evbarm/55504: evbarm-earmv7hf testbed hangs during
Date: Fri, 24 Jul 2020 12:17:47 +0300
Jukka Ruohonen wrote:
> The reason is likely the same as in PR kern/55466, i.e. not related to
> this particular, simple test per se.
I don't think the present bug is the same as PR kern/55466, as this
one can in fact be triggered by running "this particular simple, test"
only; no hung rump_server processes are involved or required.
Using a system built from 2020.07.22.01.24.40 sources (which has
t_repeated_updown 1.3) under qemu 5.0.0, running
sysctl -w hw.cnmagic=+
hangs after printing "smsh0 up":
tc-start: 1595581029.664487, repeated_updown
tc-so:Test 35: smsh0 down
tc-so:Test 35: smsh0 up
The system hangs hard such that typing the cnmagic character on the
emulated serial console has no effect.
Note that t_repeated_updown.sh 1.4 will no longer trigger the hang.
Also, if the system is started with "anita --machine virt", it will
have no shmh interface and therefore will not hang.
Andreas Gustafsson, gson%gson.org@localhost
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