[Bug 197035] sysutils/bbcp: segmentation fault and core dump when running latest version (20150113)

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197035

            Bug ID: 197035
           Summary: sysutils/bbcp:  segmentation fault and core dump when
                    running latest version (20150113)
           Product: Ports & Packages
           Version: Latest
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: Individual Port(s)
          Assignee: freebsd-ports-bugs at FreeBSD.org
          Reporter: fjwcash at gmail.com
                CC: portmaster at bsdforge.com
                CC: portmaster at bsdforge.com
             Flags: maintainer-feedback?(portmaster at bsdforge.com)

Sending and receiving systems are running the same version of FreeBSD (updated
via freebsd-update) and the same versions of all software (using the quarterly
pkg repo -- except for bbcp which was manually pulled from latest pkg repo and
installed via "pkg add").

​# uname -a
FreeBSD alphadrive.sd73.bc.ca 9.3-RELEASE-p5 FreeBSD 9.3-RELEASE-p5 #0: Mon Nov
 3 22:38:58 UTC 2014    
root at amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC  amd64


The normal command I run is as follows (pipe a "zfs send" over a bbcp
connection and then pipe that into a "zfs recv"):

bbcp -N io "zfs send -I poolname/backups/folder at 2015-01-21
poolname/backups/folder at 2015-01-22" username at remotehost:"zfs recv -d poolname"

​The only output is "Segmentation fault (core dumped)." with the resulting
bbcp.core file created.

dmesg (and /var/log/messages) just shows:

​pid 91510 (bbcp), uid 0: exited on signal 11 (core dumped)


Sending and receiving system had bbcp-20150113 installed.

Downgraded the receiving system to bbcp-20120520.  Same result.

Downgraded the sending system to bbcp-20120520 as well, and everything is
transferring correctly.

I haven't tested the older version on the sending side with the newer version
on the receiving side.  Have to wait for the current transfer to finish before
I can change the software on the receiving system.

​The core file is 8 MB in size.  It can be downloaded from here for the next
couple of days:
    http://www.sd73.bc.ca/downloads/bbcp.core

If there's anything else you need, let me know.


I see there's a newer version available in bugzilla
(https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=196814).  I don't have the
ports tree installed on these systems.  If the patch in that PR is committed
before next week's pkg build, I can test it next week.  :)

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