NetBSD Problem Report #57569
From www@netbsd.org Sat Aug 5 14:43:48 2023
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for <gnats-bugs@gnats.NetBSD.org>; Sat, 5 Aug 2023 14:43:48 +0000 (UTC)
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Date: Sat, 5 Aug 2023 14:43:46 +0000 (UTC)
From: campbell+netbsd@mumble.net
Reply-To: campbell+netbsd@mumble.net
To: gnats-bugs@NetBSD.org
Subject: ddb(4) should have a command to print stack traces for all CPUs
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>Number: 57569
>Category: kern
>Synopsis: ddb(4) should have a command to print stack traces for all CPUs
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: kern-bug-people
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Sat Aug 05 14:45:00 +0000 2023
>Originator: Taylor R Campbell
>Release: current
>Organization:
The NetBStopped in pid 1497.273 (firefox) at netbsd:breakpoint+0x5: leave
>Environment:
having its hottest summer in history
>Description:
The trace (bt) command in ddb should have a way to print a stack trace for every CPU in the system, for diagnosis when something is wedged in, e.g., an interrupt handler or at high IPL with the kernel lock held.
>How-To-Repeat:
1. Put an infinite loop in a secretly chosen interrupt handler.
2. Try to find which interrupt handler it was when the system wedges.
>Fix:
Yes, please!
(Contact us)
$NetBSD: query-full-pr,v 1.47 2022/09/11 19:34:41 kim Exp $
$NetBSD: gnats_config.sh,v 1.9 2014/08/02 14:16:04 spz Exp $
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