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* [Bug nptl/13172] New: aio_suspend is not async-signal-safe
@ 2011-09-09  3:38 bugdal at aerifal dot cx
  2012-04-29  3:05 ` [Bug nptl/13172] " bugdal at aerifal dot cx
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: bugdal at aerifal dot cx @ 2011-09-09  3:38 UTC (permalink / raw)
  To: glibc-bugs

http://sourceware.org/bugzilla/show_bug.cgi?id=13172

             Bug #: 13172
           Summary: aio_suspend is not async-signal-safe
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: critical
          Priority: P2
         Component: nptl
        AssignedTo: drepper.fsp@gmail.com
        ReportedBy: bugdal@aerifal.cx
    Classification: Unclassified


aio_suspend is required by POSIX to be async-signal-safe, but the first
non-trivial line of glibc's implementation of aio_suspend is:

pthread_mutex_lock(&__aio_requests_mutex);

This will obviously deadlock (or worse) if the thread running the signal
handler was already executing aio_suspend when it was interrupted by the
signal.

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^ permalink raw reply	[flat|nested] 4+ messages in thread
* [Bug nptl/13172] aio_suspend is not async-signal-safe
  2011-09-09  3:38 [Bug nptl/13172] New: aio_suspend is not async-signal-safe bugdal at aerifal dot cx
@ 2012-04-29  3:05 ` bugdal at aerifal dot cx
  2014-06-13 14:29 ` fweimer at redhat dot com
  2015-08-27 22:11 ` [Bug librt/13172] " jsm28 at gcc dot gnu.org
  2 siblings, 0 replies; 4+ messages in thread
From: bugdal at aerifal dot cx @ 2012-04-29  3:05 UTC (permalink / raw)
  To: glibc-bugs

http://sourceware.org/bugzilla/show_bug.cgi?id=13172

Rich Felker <bugdal at aerifal dot cx> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|drepper.fsp at gmail dot    |unassigned at sourceware
                   |com                         |dot org

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^ permalink raw reply	[flat|nested] 4+ messages in thread
* [Bug nptl/13172] aio_suspend is not async-signal-safe
  2011-09-09  3:38 [Bug nptl/13172] New: aio_suspend is not async-signal-safe bugdal at aerifal dot cx
  2012-04-29  3:05 ` [Bug nptl/13172] " bugdal at aerifal dot cx
@ 2014-06-13 14:29 ` fweimer at redhat dot com
  2015-08-27 22:11 ` [Bug librt/13172] " jsm28 at gcc dot gnu.org
  2 siblings, 0 replies; 4+ messages in thread
From: fweimer at redhat dot com @ 2014-06-13 14:29 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=13172

Florian Weimer <fweimer at redhat dot com> changed:

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

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^ permalink raw reply	[flat|nested] 4+ messages in thread
* [Bug librt/13172] aio_suspend is not async-signal-safe
  2011-09-09  3:38 [Bug nptl/13172] New: aio_suspend is not async-signal-safe bugdal at aerifal dot cx
  2012-04-29  3:05 ` [Bug nptl/13172] " bugdal at aerifal dot cx
  2014-06-13 14:29 ` fweimer at redhat dot com
@ 2015-08-27 22:11 ` jsm28 at gcc dot gnu.org
  2 siblings, 0 replies; 4+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2015-08-27 22:11 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=13172

Joseph Myers <jsm28 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|nptl                        |librt

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^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2015-08-27 22:11 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2011-09-09  3:38 [Bug nptl/13172] New: aio_suspend is not async-signal-safe bugdal at aerifal dot cx
2012-04-29  3:05 ` [Bug nptl/13172] " bugdal at aerifal dot cx
2014-06-13 14:29 ` fweimer at redhat dot com
2015-08-27 22:11 ` [Bug librt/13172] " jsm28 at gcc dot gnu.org

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