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Date: Sun, 25 Feb 2001 20:52:13 +0100 (CET)
From: Christian Weisgerber <naddy@mips.inka.de>
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Subject: bin/25361: dump(8) command segfaults
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>Number:         25361
>Category:       bin
>Synopsis:       dump(8) command segfaults
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Feb 25 12:40:00 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     Christian Weisgerber
>Release:        FreeBSD 5.0-CURRENT alpha
>Organization:
>Environment:
System: FreeBSD kemoauc.mips.inka.de 5.0-CURRENT FreeBSD 5.0-CURRENT #4: Sat Feb 24 14:37:31 CET 2001 naddy@kemoauc.mips.inka.de:/usr/src/sys/compile/KEMOAUC alpha

>Description:

The dump(8) command segfaults:

$ dump 0af /dev/null /
  DUMP: Date of this level 0 dump: Sun Feb 25 20:44:21 2001
  DUMP: Date of last level 0 dump: the epoch
  DUMP: Dumping /dev/da0a (/) to /dev/null
  DUMP: mapping (Pass I) [regular files]
  DUMP: mapping (Pass II) [directories]
  DUMP: estimated 67655 tape blocks.
  DUMP: dumping (Pass III) [directories]
  DUMP: dumping (Pass IV) [regular files]
  DUMP: SIGSEGV: ABORTING!
  DUMP: SIGSEGV: ABORTING!
  DUMP: SIGSEGV: ABORTING!
  DUMP: SIGSEGV: ABORTING!
  DUMP: SIGSEGV: ABORTING!
Segmentation fault (core dumped)

dump was working fine in -current as of Dec 25.  The only changes
to it since then are the introduction of <sys/queue.h> instead of
a home-rolled list and the replacement of '\007' with '\a'.  These
changes are innocuous; if backed out, dump still segfaults.  This
suggests that the problem has been triggered by a kernel change.

>How-To-Repeat:

$ dump 0af /dev/null /

>Fix:

None known.

>Release-Note:
>Audit-Trail:
>Unformatted:

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