[Bug libc/15521] New: real-time signals DO NOT delivered starting with the lowest-numbered signal.

[Bug libc/15521] New: real-time signals DO NOT delivered starting with the lowest-numbered signal.

[1533963612 at qq dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=15521

             Bug #: 15521
           Summary: real-time signals DO NOT delivered starting with the
                    lowest-numbered signal.
           Product: glibc
           Version: 2.15
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: unassigned@sourceware.org
        ReportedBy: 1533963612@qq.com
                CC: drepper.fsp@gmail.com
    Classification: Unclassified


Created attachment 7040
  --> http://sourceware.org/bugzilla/attachment.cgi?id=7040
compile it using -std=c99 option

Assume parent send 3 signals from SIGRTMAX to SIGRTMAX - 2, each signal sends 3
times, the child would recv the signal as order SIGRTMAX - 2 to SIGRTMAX, since
the lowest-numbered should delivered first, and each same number signal deliver
as FIFO order, but the result is:

-----parent send-----
sent 64, val = 1
sent 64, val = 2
sent 64, val = 3
sent 63, val = 1
sent 63, val = 2
sent 63, val = 3
sent 62, val = 1
sent 62, val = 2
sent 62, val = 3
-----child recv-----
recv 64, val = 1
recv 64, val = 2
recv 64, val = 3
recv 63, val = 1
recv 63, val = 2
recv 63, val = 3
recv 62, val = 1
recv 62, val = 2
recv 62, val = 3

we see that the same number signal deliver in rigth sequence （FIFO）， but
different signal DO NOT delivered in lowest number first, in this case, should 
signal 62 first, and 64 last.

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To: glibc-bugs@sourceware.org
Subject: [Bug libc/15521] real-time signals DO NOT delivered starting with the lowest-numbered signal.
Date: Thu, 23 May 2013 08:25:00 -0000
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http://sourceware.org/bugzilla/show_bug.cgi?id\x15521

Chopin <1533963612 at qq dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Attachment #7040|0                           |1
        is obsolete|                            |

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[Bug libc/15521] real-time signals DO NOT delivered starting with the lowest-numbered signal.

[1533963612 at qq dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=15521

--- Comment #1 from Chopin <1533963612 at qq dot com> 2013-05-23 08:26:29 UTC ---
Created attachment 7041
  --> http://sourceware.org/bugzilla/attachment.cgi?id=7041
test code, compile it using -std=c99 option

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[Bug libc/15521] real-time signals DO NOT delivered starting with the lowest-numbered signal.

[1533963612 at qq dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=15521

Chopin <1533963612 at qq dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |1533963612 at qq dot com

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[Bug libc/15521] real-time signals DO NOT delivered starting with the lowest-numbered signal.

[schwab@linux-m68k.org]

http://sourceware.org/bugzilla/show_bug.cgi?id=15521

Andreas Schwab <schwab@linux-m68k.org> changed:

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

--- Comment #2 from Andreas Schwab <schwab@linux-m68k.org> 2013-05-23 13:51:33 UTC ---
Signal delivery is the business of the kernel.  Please report that to
linux-kernel@vger.kernel.org.

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[Bug libc/15521] real-time signals DO NOT delivered starting with the lowest-numbered signal.

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=15521

Florian Weimer <fweimer at redhat dot com> changed:

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

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