[gccsdk] [Bug 217] New: Stack Backtrace with certain programs built with gcc 4.6

bugzilla-daemon at riscos.info bugzilla-daemon at riscos.info
Mon Feb 28 10:53:15 PST 2011


http://www.riscos.info/bugzilla3/show_bug.cgi?id=217

           Summary: Stack Backtrace with certain programs built with gcc
                    4.6
           Product: GCC/GCCSDK
           Version: other
          Platform: Other
        OS/Version: RISC OS
            Status: NEW
          Severity: normal
          Priority: P1
         Component: C compiler
        AssignedTo: John.Tytgat at aaug.net
        ReportedBy: chrisg at care4free.net
   Estimated Hours: 0.0


I'm getting the following Stack backtrace with several programs built with
gcc4.6. When it happens it looks like it gets stuck in an infinite loop
continually outputting the backtrace until I 'Alt-break' to stop the program. I
haven't managed to narrow down a test case yet. I thought I'd raise it in case
it is something obvious. If not point me in the right direction to narrow down
the problem.

GCCSDK revision 5057
GCC 4.6 revision 170519

Fatal signal received: EMT trap

Stack backtrace:

Running thread 0x2bc268
  (  2bef7c) pc:   2102a4 lr:   210714 sp:   2bef80  __write_backtrace()
  (  2befe4) pc:   2103bc lr:   1db72c sp:   2befe8  __unixlib_raise_signal()
  (  2beff4) pc:   1db62c lr:   1da004 sp: 15b4b67c  __rt_stkovf_split_small()
  (15b4b6bc) pc:   1c8d5c lr:   20ee94 sp: 15b4b6c0  __cexp()
  (15b4b6dc) pc:   20ee54 lr:   1c8dc8 sp: 15b4b6e0  __sincos()
  (15b4b71c) pc:   1c8d5c lr:   20ee94 sp: 15b4b720  __cexp()
  (15b4b73c) pc:   20ee54 lr:   1c8dc8 sp: 15b4b740  __sincos()
  (15b4b77c) pc:   1c8d5c lr:   20ee94 sp: 15b4b780  __cexp()
  (15b4b79c) pc:   20ee54 lr:   1c8dc8 sp: 15b4b7a0  __sincos()
  (15b4b7dc) pc:   1c8d5c lr:   20ee94 sp: 15b4b7e0  __cexp()
  (15b4b7fc) pc:   20ee54 lr:   1c8dc8 sp: 15b4b800  __sincos()
  (15b4b83c) pc:   1c8d5c lr:   20ee94 sp: 15b4b840  __cexp()
  (15b4b85c) pc:   20ee54 lr:   1c8dc8 sp: 15b4b860  __sincos()
  (15b4b89c) pc:   1c8d5c lr:   20ee94 sp: 15b4b8a0  __cexp()
  (15b4b8bc) pc:   20ee54 lr:   1c8dc8 sp: 15b4b8c0  __sincos()
  (15b4b8fc) pc:   1c8d5c lr:   20ee94 sp: 15b4b900  __cexp()
  (15b4b91c) pc:   20ee54 lr:   1c8dc8 sp: 15b4b920  __sincos()
  (15b4b95c) pc:   1c8d5c lr:   20ee94 sp: 15b4b960  __cexp()
  (15b4b97c) pc:   20ee54 lr:   1c8dc8 sp: 15b4b980  __sincos()
  (15b4b9bc) pc:   1c8d5c lr:   20ee94 sp: 15b4b9c0  __cexp()

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