irc-gdb-session.txt

$ JULIA_CPU_CORES=1 gdb --args usr/bin/julia-debug test/runtests.jl numbers parallel
GNU gdb (GDB) 7.8
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Reading symbols from usr/bin/julia-debug...done.
(gdb) break _exception_handler
Function "_exception_handler" not defined.
Make breakpoint pending on future shared library load? (y or [n]) y

Breakpoint 1 (_exception_handler) pending.
(gdb) break jl_rethrow
Function "jl_rethrow" not defined.
Make breakpoint pending on future shared library load? (y or [n]) y

Breakpoint 2 (jl_rethrow) pending.
(gdb) r
Starting program: /home/Tony/julia/usr/bin/julia-debug test/runtests.jl numbers parallel
[New Thread 6196.0x2ee8]
[New Thread 6196.0x2448]
[New Thread 6196.0x2ef0]
[New Thread 6196.0x21b4]
[New Thread 6196.0x51fc]
[New Thread 6196.0x2e6c]
[New Thread 6196.0x30d0]
[New Thread 6196.0x3620]
[New Thread 6196.0x930]
[New Thread 6196.0x10b8]
[New Thread 6196.0x465c]
     * numbers
[New Thread 6196.0x2e74]
[New Thread 6196.0x4120]
[Thread 6196.0x10b8 exited with code 0]
[Thread 6196.0x2e74 exited with code 0]
[Thread 6196.0x465c exited with code 0]
[Thread 6196.0x4120 exited with code 0]

Program received signal SIGFPE, Arithmetic exception.
0x0000000063041550 in __gmp_exception () from /home/Tony/julia/usr/bin/libgmp.DLL
(gdb) bt
#0  0x0000000063041550 in __gmp_exception () from /home/Tony/julia/usr/bin/libgmp.DLL
#1  0x000000006304158e in __gmp_divide_by_zero () from /home/Tony/julia/usr/bin/libgmp.DLL
#2  0x0000000063052d30 in __gmpz_powm () from /home/Tony/julia/usr/bin/libgmp.DLL
#3  0x000000000ef13009 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
(gdb) print jl_current_task->eh
$1 = (jl_handler_t *) 0xd5db00
(gdb) print jl_stackbase
$2 = (void *) 0xd5fcf0
(gdb) info reg
rax            0xa      10
rbx            0x210d6ba0       554527648
rcx            0x2      2
rdx            0x0      0
rsi            0x0      0
rdi            0x210d6be0       554527712
rbp            0xd5d5a0 0xd5d5a0
rsp            0xd5d4c0 0xd5d4c0
r8             0x210d6ba0       554527648
r9             0x210d6bb8       554527672
r10            0x2d07d30        47217968
r11            0xd5ce38 14011960
r12            0x210d6b88       554527624
r13            0x210d6bb0       554527664
r14            0xd5d660 14014048
r15            0x210d6b88       554527624
rip            0x63041550       0x63041550 <__gmp_exception+16>
eflags         0x10202  [ IF RF ]
cs             0x33     51
ss             0x2b     43
ds             0x0      0
es             0x0      0
fs             0x0      0
gs             0x0      0
(gdb) c
Continuing.

Breakpoint 1, _exception_handler (ExceptionInfo=0xd5c670, in_ctx=1) at init.c:298
298     {
(gdb) s
299         if (ExceptionInfo->ExceptionRecord->ExceptionFlags == 0) {
(gdb) s
300             switch (ExceptionInfo->ExceptionRecord->ExceptionCode) {
(gdb) s
302                     fpreset();
(gdb) s
_fpreset () at /usr/src/debug/mingw64-x86_64-runtime-3.2.0-1/crt/CRT_fp10.c:12
12      /usr/src/debug/mingw64-x86_64-runtime-3.2.0-1/crt/CRT_fp10.c: No such file or directory.
(gdb) s
_exception_handler (ExceptionInfo=0xd5c670, in_ctx=1) at init.c:303
303                     jl_throw_in_ctx(jl_diverror_exception, ExceptionInfo->ContextRecord,in_ctx);
(gdb) print bt=0
No symbol "bt" in current context.
(gdb) set bt=0
No symbol "bt" in current context.
(gdb) info locals
recursion = 0
(gdb) s
jl_throw_in_ctx (excpt=0x39ef218, ctxThread=0xd5cdc0, bt=1) at init.c:233
233     {
(gdb) print bt=0
$3 = 0
(gdb) s
234         assert(excpt != NULL);
(gdb) s
235         bt_size = bt ? rec_backtrace_ctx(bt_data, MAX_BT_SIZE, ctxThread) : 0;
(gdb) s
236         jl_exception_in_transit = excpt;
(gdb) s
238         ctxThread->Rip = (DWORD64)&jl_rethrow;
(gdb) s
239         ctxThread->Rsp &= (DWORD64)-16;
(gdb) s
240         ctxThread->Rsp -= 8; //fix up the stack pointer -- this seems to be correct by observation
(gdb) s
248     }
(gdb) s
_exception_handler (ExceptionInfo=0xd5c670, in_ctx=1) at init.c:304
304                     return EXCEPTION_CONTINUE_EXECUTION;
(gdb) s
366     }
(gdb) s
_seh_exception_handler (ExceptionRecord=0xd5d2b0, EstablisherFrame=0xd5d6b0,
    ContextRecord=0xd5cdc0, DispatcherContext=0xd5c770) at init.c:383
383                 rval = ExceptionContinueExecution; break;
(gdb) s
392         return rval;
(gdb) s
393     }
(gdb) s
0x0000000077889d2d in ntdll!RtlDecodePointer () from /cygdrive/c/Windows/SYSTEM32/ntdll.dll
(gdb) s
Single stepping until exit from function ntdll!RtlDecodePointer,
which has no line number information.
0x00000000778791cf in ntdll!RtlUnwindEx () from /cygdrive/c/Windows/SYSTEM32/ntdll.dll
(gdb) s
Single stepping until exit from function ntdll!RtlUnwindEx,
which has no line number information.
0x000000007786ddb6 in ntdll!RtlDeleteTimer () from /cygdrive/c/Windows/SYSTEM32/ntdll.dll
(gdb) s
Single stepping until exit from function ntdll!RtlDeleteTimer,
which has no line number information.
0x00000000778b1248 in ntdll!KiUserExceptionDispatcher ()
   from /cygdrive/c/Windows/SYSTEM32/ntdll.dll
(gdb) c
Continuing.

Breakpoint 2, jl_rethrow () at task.c:778
778     {
(gdb) print bt
No symbol "bt" in current context.
(gdb) bt
#0  jl_rethrow () at task.c:778
#1  0x0000000003cc01fe in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
(gdb) c
Continuing.
[New Thread 6196.0x3090]
     * parallel[New Thread 6196.0x3754]

[New Thread 6196.0x2db8]
    SUCCESS
[Thread 6196.0x51fc exited with code 0]
[Thread 6196.0x930 exited with code 0]
[Thread 6196.0x2ef0 exited with code 0]
[Thread 6196.0x3754 exited with code 0]
[Thread 6196.0x21b4 exited with code 0]
[Thread 6196.0x3620 exited with code 0]
[Thread 6196.0x3090 exited with code 0]
[Thread 6196.0x30d0 exited with code 0]
[Thread 6196.0x2448 exited with code 0]
[Thread 6196.0x2e6c exited with code 0]
[Thread 6196.0x2db8 exited with code 0]
[Inferior 1 (process 6196) exited normally]