NetBSD Problem Report #57490

From www@netbsd.org  Mon Jun 26 21:56:02 2023
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Date: Mon, 26 Jun 2023 21:56:00 +0000 (UTC)
From: umbertocerrato@outlook.it
Reply-To: umbertocerrato@outlook.it
To: gnats-bugs@NetBSD.org
Subject: X /xdm / startx crash on Quit or when changing consoles
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>Number:         57490
>Category:       port-amd64
>Synopsis:       X /xdm / startx crash on Quit or when changing consoles
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    port-amd64-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Jun 26 22:00:00 +0000 2023
>Originator:     Mepy
>Release:        9.3
>Organization:
>Environment:
NetBSD localhost 9.3 NetBSD 9.3 (GENERIC) #0: Thu Aug  4 15:30:37 U
TC 2022  mkrepro@mkrepro.NetBSD.org:/usr/src/sys/arch/amd64/compile
/GENERIC amd64
>Description:
Entering X sometimes crash.
Even if X or xdm works, when changing consoles (ctrl alt fX) it crashes. And then it restarts.
Done some testing with the pc and another client connected through ssh.
I.e. starting X, then quitting, everything freezes on the main screen. Though doing ps -A with ssh shows no X is running.
Starting X again (from ssh) redraws the screen and everything "works" again.
Doing "Quit" from i.e. ctwm does the same.
Changing virtual consoles does the same too.
I.e. when xdm is running it quits and then restarts. If changing screen quickly the system may crash too (not tested recently).
>How-To-Repeat:
Probably an hardware related problem.
Anyway: login; startx; "Quit".
>Fix:
Managing the crashed system from a ssh connected third system.

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