NetBSD Problem Report #57709
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Date: Sun, 19 Nov 2023 22:05:30 +0000 (UTC)
From: campbell+netbsd@mumble.net
Reply-To: campbell+netbsd@mumble.net
To: gnats-bugs@NetBSD.org
Subject: uvm_grow cannot be dtraced with fbt
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>Number: 57709
>Category: kern
>Synopsis: uvm_grow cannot be dtraced with fbt
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: kern-bug-people
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Sun Nov 19 22:10:00 +0000 2023
>Originator: Taylor R Campbell
>Release: current
>Organization:
The NetBSD Stackgrowdation
>Environment:
>Description:
The function uvm_grow does not appear with fbt probes, entry or return, so it can't be dtraced as such.
Perhaps whatever problem is affecting uvm_grow might also affect other symbols in the kernel too.
>How-To-Repeat:
# dtrace -n 'fbt::uvm_grow:entry { @[stack()] = count() }'
dtrace: invalid probe specifier fbt::uvm_grow:entry { @[stack()] = count() }: probe description fbt::uvm_grow:entry does not match any probes
# dtrace -l -P fbt | grep uvm_grow
#
>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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