Subject: kern/3764: userland and kernel profiling don't agree?
To: None <>
From: Chris Jones <>
List: netbsd-bugs
Date: 06/18/1997 18:03:43
>Number:         3764
>Category:       kern
>Synopsis:       Can't profile sendmail and kernel at the same time.
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people (Kernel Bug People)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Jun 18 17:05:00 1997
>Originator:     Chris Jones
Chris Jones                          
           Mad scientist in training...
"Is this going to be a stand-up programming session, sir, or another bug hunt?"
>Release:        1.2
System: NetBSD 1.2G NetBSD 1.2G (CLYDESDALE) #2: Mon Jun 16 15:46:23 MDT 1997 i386

This machine is running a sendmail with profiling compiled in.  In
tracking down a weird kernel performance bug, I compiled a profiled
kernel and tried running it.  Whenever I start sendmail under this
kernel, though, the machine entirely locks up; pcvt won't even change
to other virtual terminals.  This behavior occurs when sendmail is
started as root from /etc/rc, and it also occurs when my mailer tries
to run sendmail as a non-privileged user.