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test-lock is segfaulting on Ubuntu 13.10


From: Richard W.M. Jones
Subject: test-lock is segfaulting on Ubuntu 13.10
Date: Mon, 14 Oct 2013 16:32:24 +0100
User-agent: Mutt/1.5.20 (2009-12-10)

With the latest gnulib from git:

Starting test_lock .../bin/bash: line 5:  9992 Aborted                 (core 
dumped) EXEEXT='' srcdir='.' LOCALE_FR='none' LOCALE_FR_UTF8='none' 
LOCALE_FR='none' LOCALE_TR_UTF8='none' LOCALE_FR='none' LOCALE_FR_UTF8='none' 
LOCALE_JA='none' LOCALE_ZH_CN='none' LOCALE_FR_UTF8='none' LOCALE_FR='none' 
LOCALE_FR_UTF8='none' LOCALE_JA='none' LOCALE_ZH_CN='none' LOCALE_FR='none' 
LOCALE_FR_UTF8='none' LOCALE_JA='none' LOCALE_ZH_CN='none' 
abs_aux_dir='/home/rjones/d/libguestfs/build-aux' MAKE='make' LOCALE_FR='none' 
LOCALE_FR_UTF8='none' LOCALE_JA='none' LOCALE_ZH_CN='none' ${dir}$tst
FAIL: test-lock

The stack trace is:

Thread 1 (LWP 9992):
#0  0x00002b39b9565f77 in __GI_raise (address@hidden)
    at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1  0x00002b39b95695e8 in __GI_abort () at abort.c:90
#2  0x0000000000400deb in gl_thread_create (arg=0x0, 
    func=0x401130 <lock_checker_thread>) at glthread/thread.h:385
#3  test_lock () at test-lock.c:206
#4  main () at test-lock.c:566

(There is only 1 thread)

This stack trace makes no sense, since the code at line 206 is:

  checkerthread = gl_thread_create (lock_checker_thread, NULL);

(ie. the two arguments are reversed).  So I've got no idea what could
be going on here.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-p2v converts physical machines to virtual machines.  Boot with a
live CD or over the network (PXE) and turn machines into KVM guests.
http://libguestfs.org/virt-v2v



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