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Re: kern/55933: diskless machine hangs at boot
The following reply was made to PR kern/55933; it has been noted by GNATS.
From: Martin Husemann <martin%duskware.de@localhost>
Subject: Re: kern/55933: diskless machine hangs at boot
Date: Mon, 18 Jan 2021 14:02:31 +0100
The effect is very volatile, adding simple debug code to cdbw_open()
makes the issue go away, but also confirms that *no* use of the cdbw
code happens before the hang.
Maybe some libc code layout issue and the cdbw change pushing things
to a new (not yet used before) page? Plus some emac(4) driver bug breaking
In case of the hang the shell executing /etc/rc gets into rc.d/network,
close to the end and hangs in
load_rc_config_var dhcpcd dhcpcd
right after testing the function was called with two args (so maybe
the following eval failed to exec a new sh?)
With "set -X" added to the start of rc.d/network:
Setting sysctl variables:
ddb.onpanic: 1 -> 0
+ load_rc_config network
+ '[' -z network ']'
+ '[' -f /etc/rc.conf.d/network ']'
+ load_rc_config_var dhcpcd dhcpcd
+ '[' 2 -ne 2 ']'
Any ideas how to trace this further?
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