Looks like a bug in libusb, with anecdotal evidence from Sean above and
comments from the developer (on linked Redhat bugzilla bug also
mentioning this)
https://bugzilla.redhat.com/show_bug.cgi?id=580570
** Bug watch added: Red Hat Bugzilla #580570
*** This bug is a duplicate of bug 427805 ***
https://bugs.launchpad.net/bugs/427805
This actually looks like a dupe of #427805
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upowerd crashed with SIGSEGV in free()
https://bugs.launchpad.net/bugs/526895
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*** This bug is a duplicate of bug 427805 ***
https://bugs.launchpad.net/bugs/427805
** This bug has been marked a duplicate of bug 427805
usb_find_devices() crashed with SIGSEGV in free()
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upowerd crashed with SIGSEGV in free()
https://bugs.launchpad.net/bugs/526895
You received this
Replacing libusb-0.1-4 with a hand-built version of libusb-compat
appears to solve this problem for me.
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upowerd crashed with SIGSEGV in free()
https://bugs.launchpad.net/bugs/526895
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Here is the valgrind log. It doesn't have debug symbols for upowerd
though due to there not being a version available in the repo with them.
** Attachment added: valgrind.log
http://launchpadlibrarian.net/42074259/valgrind.log
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upowerd crashed with SIGSEGV in free()
** Visibility changed to: Public
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upowerd crashed with SIGSEGV in free()
https://bugs.launchpad.net/bugs/526895
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Ubuntu better. Please try to obtain a valgrind log following the
instructions at https://wiki.ubuntu.com/Valgrind and attach the file to
the bug report. This will greatly help us in tracking down your problem.
** Changed in:
** Attachment added: CoreDump.gz
http://launchpadlibrarian.net/39697770/CoreDump.gz
** Attachment added: Dependencies.txt
http://launchpadlibrarian.net/39697771/Dependencies.txt
** Attachment added: Disassembly.txt
http://launchpadlibrarian.net/39697772/Disassembly.txt
** Attachment
Setting back to private, as there is still a coredump attached, which
might contain private information
** Visibility changed to: Private
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upowerd crashed with SIGSEGV in free()
https://bugs.launchpad.net/bugs/526895
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