Subject: bin/20048: ktruss exits with error leaving program running
To: None <gnats-bugs@gnats.netbsd.org>
From: None <dsl@l8s.co.uk>
List: netbsd-bugs
Date: 01/24/2003 23:00:16
>Number: 20048
>Category: bin
>Synopsis: ktruss exits with error leaving program running
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: bin-bug-people
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Fri Jan 24 14:58:00 PST 2003
>Closed-Date:
>Last-Modified:
>Originator: David Laight
>Release: NetBSD 1.6M
>Organization:
none
>Environment:
System: NetBSD snowdrop 1.6M NetBSD 1.6M (GENERIC) #1: Wed Jan 22 10:30:23 GMT 2003 dsl@snowdrop:/oldroot/usr/bsd-current/obj/sys/arch/i386/compile/GENERIC i386
Architecture: i386
Machine: i386
>Description:
If you ktruss a program that tries to read a sparse file, then
ktruss aborts with the error "ktruss: data too short"
returning you to your shell prompt, but leaving the program
still running.
>How-To-Repeat:
$ echo x >x
$ echo x | dd of=x seek=10240*10240
$ ktruss hexdump x
ktruss: data too short
$ ps | grep hexdump
190170 pa R 0:01.86 hexdump x
$
Note that ktruss exits but hexdump is still active.
>Fix:
If ktruss does abort tracing it should probably wait for
the traced program to exit.
It probably should also not abort the trace at that point.
>Release-Note:
>Audit-Trail:
>Unformatted: