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* [Bug nptl/15921] New: nptl/tst-cleanup2 fails on s390x and power6
@ 2013-09-02 12:28 siddhesh at redhat dot com
  2013-09-03  3:59 ` [Bug nptl/15921] " siddhesh at redhat dot com
  2014-06-13 12:57 ` fweimer at redhat dot com
  0 siblings, 2 replies; 3+ messages in thread
From: siddhesh at redhat dot com @ 2013-09-02 12:28 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=15921

            Bug ID: 15921
           Summary: nptl/tst-cleanup2 fails on s390x and power6
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: nptl
          Assignee: siddhesh at redhat dot com
          Reporter: siddhesh at redhat dot com
                CC: drepper.fsp at gmail dot com

The test case nptl/tst-cleanup2 fails on s390x and power6 due to instruction
sheduling in gcc.  This was reported in gcc:

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58034

but it was concluded that gcc is allowed to assume that the first argument to
sprintf is a character array - NULL not being a character array.

It is trivial to avoid this problem in the test case by marking the success
return value in tst-cleanup2 as volatile.

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* [Bug nptl/15921] nptl/tst-cleanup2 fails on s390x and power6
  2013-09-02 12:28 [Bug nptl/15921] New: nptl/tst-cleanup2 fails on s390x and power6 siddhesh at redhat dot com
@ 2013-09-03  3:59 ` siddhesh at redhat dot com
  2014-06-13 12:57 ` fweimer at redhat dot com
  1 sibling, 0 replies; 3+ messages in thread
From: siddhesh at redhat dot com @ 2013-09-03  3:59 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=15921

Siddhesh Poyarekar <siddhesh at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #1 from Siddhesh Poyarekar <siddhesh at redhat dot com> ---
commit 6c8bbad92726eeb50c9bb4107dad80155062eb0a
Author: Siddhesh Poyarekar <siddhesh@redhat.com>
Date:   Tue Sep 3 09:29:01 2013 +0530

    Mark success return value as volatile to work around rescheduling

    Resolves #15921

    The test case nptl/tst-cleanup2 fails on s390x and power6 due to
    instruction sheduling in gcc.  This was reported in gcc:

    http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58034

    but it was concluded that gcc is allowed to assume that the first
    argument to sprintf is a character array - NULL not being a valid
    character array.

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* [Bug nptl/15921] nptl/tst-cleanup2 fails on s390x and power6
  2013-09-02 12:28 [Bug nptl/15921] New: nptl/tst-cleanup2 fails on s390x and power6 siddhesh at redhat dot com
  2013-09-03  3:59 ` [Bug nptl/15921] " siddhesh at redhat dot com
@ 2014-06-13 12:57 ` fweimer at redhat dot com
  1 sibling, 0 replies; 3+ messages in thread
From: fweimer at redhat dot com @ 2014-06-13 12:57 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=15921

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|                            |security-

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end of thread, other threads:[~2014-06-13 12:57 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2013-09-02 12:28 [Bug nptl/15921] New: nptl/tst-cleanup2 fails on s390x and power6 siddhesh at redhat dot com
2013-09-03  3:59 ` [Bug nptl/15921] " siddhesh at redhat dot com
2014-06-13 12:57 ` fweimer at redhat dot com

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