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Date:      Tue, 16 Apr 2024 17:10:09 +0000
From:      bugzilla-noreply@freebsd.org
To:        virtualization@FreeBSD.org
Subject:   [Bug 277559] kldload vmm sometimes hangs kernel on arm64
Message-ID:  <bug-277559-27103-JAG8HSTIXl@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-277559-27103@https.bugs.freebsd.org/bugzilla/>
References:  <bug-277559-27103@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D277559

--- Comment #10 from John F. Carr <jfc@mit.edu> ---
There is still a problem, but less common.  One out of five reboots with the
patch the RockPro64 hung the first time I ran kldload.  The ssh session was
responsive for a few seconds:

# kldload vmm
load: 0.12  cmd: kldload 81984 [running] 0.97r 0.00u 0.01s 9% 2596k
load: 0.12  cmd: kldload 81984 [running] 2.46r 0.00u 0.01s 23% 2596k
client_loop: send disconnect: Broken pipe

The last entry in /var/log/messages said:

vgic0: <Virtual GIC v3> on gic0

This machine can't save crash dumps and I don't know if there was a panic. =
 I
can hook up a serial console if helpful.

If kldload works the first time after reboot it seems to keep working.  Thi=
s is
an improvement.

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