[Issue 8849] New: std.parallelism.executeInNewThread with thread priority segfaults

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=8849

           Summary: std.parallelism.executeInNewThread with thread
                    priority segfaults
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Phobos
        AssignedTo: nobody at puremagic.com
        ReportedBy: acehreli at yahoo.com


--- Comment #0 from Ali Cehreli <acehreli at yahoo.com> 2012-10-18 10:48:51 PDT ---
import std.parallelism;

void foo()
{}

void main() {
   auto t = task!foo();
   t.executeInNewThread(1);
}

Output from gdb:

Program received signal SIGSEGV, Segmentation fault.
0x0000003016e0839b in pthread_getschedparam () from /lib64/libpthread.so.0
Missing separate debuginfos, use: debuginfo-install
glibc-2.12-1.80.el6_3.5.x86_64
(gdb) bt
#0  0x0000003016e0839b in pthread_getschedparam () from /lib64/libpthread.so.0
#1  0x0000000000458cd0 in core.thread.Thread.priority() ()
#2  0x0000000000000000 in ?? ()

Compiling with -m32 causes the same issue with better backtrace:

Program received signal SIGSEGV, Segmentation fault.
0x0011844d in pthread_getschedparam () from /lib/libpthread.so.0
Missing separate debuginfos, use: debuginfo-install
glibc-2.12-1.80.el6_3.5.i686
(gdb) bt
#0  0x0011844d in pthread_getschedparam () from /lib/libpthread.so.0
#1  0x08095253 in core.thread.Thread.priority() ()
#2  0x08092f1e in std.parallelism.TaskPool.__ctor() ()
#3  0x080873df in std.parallelism.Task!(foo).Task.executeInNewThread
(this=0xf7ee5fe0, priority=1) at
/usr/include/d/dmd/phobos/std/parallelism.d:753
#4  0x08086ae1 in D main () at deneme.d:102585
#5  0x0808f564 in rt.dmain2.main() ()
#6  0x0808f074 in rt.dmain2.main() ()
#7  0x0808f5a6 in rt.dmain2.main() ()
#8  0x0808f074 in rt.dmain2.main() ()
#9  0x0808f024 in main ()

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