[Issue 11341] New: segfault in std.process.createEnv

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=11341

           Summary: segfault in std.process.createEnv
           Product: D
           Version: D2
          Platform: All
        OS/Version: Mac OS X
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Phobos
        AssignedTo: nobody at puremagic.com
        ReportedBy: hans at fugal.net


--- Comment #0 from Hans Fugal <hans at fugal.net> 2013-10-24 09:37:04 PDT ---
// On OSX this code causes a segfault. (dmd 2.063.2)
void sub() {
  import std.process;
  execute(["echo", "hello"]);
}

void main() {
  import std.concurrency;
  spawn(&sub);
}

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x0000000000000000
[Switching to process 39151 thread 0x1203]
0x0000000100038a2c in D3std7process7environFNbNdNeZxPPa ()
(gdb) bt
#0  0x0000000100038a2c in D3std7process7environFNbNdNeZxPPa ()
#1  0x00000001000390bf in D3std7process9createEnvFxHAyaAyabZPxPa ()
#2  0x0000000100038df7 in
D3std7process16spawnProcessImplFNexAAaS3std5stdio4FileS3std5stdio4FileS3std5stdio4FilexHAyaAyaE3std7process6ConfigZC3std7process3Pid
()
#3  0x0000000100038ae9 in
D3std7process12spawnProcessFNexAAaS3std5stdio4FileS3std5stdio4FileS3std5stdio4FilexHAyaAyaE3std7process6ConfigZC3std7process3Pid
()
#4  0x000000010003a9cb in
D3std7process159__T15pipeProcessImplS129_D3std7process12spawnProcessFNexAAaS3std5stdio4FileS3std5stdio4FileS3std5stdio4FilexHAyaAyaE3std7process6ConfigZC3std7process3PidTAAyaZ15pipeProcessImplFNeAAyaE3std7process8RedirectxHAyaAyaE3std7process6ConfigZS3std7process12ProcessPipes
()
#5  0x0000000100039add in
D3std7process11pipeProcessFNeAAyaE3std7process8RedirectxHAyaAyaE3std7process6ConfigZS3std7process12ProcessPipes
()
#6  0x0000000100001959 in
D3std7process138__T11executeImplS112_D3std7process11pipeProcessFNeAAyaE3std7process8RedirectxHAyaAyaE3std7process6ConfigZS3std7process12ProcessPipesTAAyaZ11executeImplFAAyaxHAyaAyaE3std7process6ConfigmZS3std7process138__T11executeImplS112_D3std7process11pipeProcessFNeAAyaE3std7process8RedirectxHAyaAyaE3std7process6ConfigZS3std7process12ProcessPipesTAAyaZ11executeImplFAAyaxHAyaAyaE3std7process6ConfigmZ13ProcessOutput
()
#7  0x0000000100039e69 in
D3std7process7executeFNeAAyaxHAyaAyaE3std7process6ConfigmZS3std7process138__T11executeImplS112_D3std7process11pipeProcessFNeAAyaE3std7process8RedirectxHAyaAyaE3std7process6ConfigZS3std7process12ProcessPipesTAAyaZ11executeImplFAAyaxHAyaAyaE3std7process6ConfigmZ13ProcessOutput
()
#8  0x0000000100001495 in D9spawnpipe3subFZv ()
#9  0x0000000100002765 in
D3std11concurrency16__T6_spawnTPFZvZ6_spawnFbPFZvZS3std11concurrency3Tid4execMFZv
()
#10 0x0000000100012851 in D4core6thread6Thread3runMFZv ()
#11 0x0000000100011fed in thread_entryPoint ()
#12 0x00007fff8d731772 in _pthread_start ()
#13 0x00007fff8d71e1a1 in thread_start ()

Same thing happens with core.thread.Thread insead of std.concurrency.spawn, and
other variants like
std.process.{spawnProcess,spawnShell,pipeProcess,pipeShell}.

Works ok in linux. (2.063.2)

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