On Tuesday, 27 December 2016 at 17:27:14 UTC, unDEFER wrote:
Hello I have very simple line with exec-command:
execl("/bin/bash".toStringz(), "/bin/bash".toStringz(),
"-c".toStringz(), command.toStringz(), null);
And on this line on toStringz my program sometimes hangs.
backtrace:
(gdb) bt
#0 0x00007f3acd535c6d in nanosleep () at
../sysdeps/unix/syscall-template.S:84
#1 0x000000000066f57e in
core.thread.Thread.sleep(core.time.Duration) ()
#2 0x00000000006b2824 in
core.internal.spinlock.SpinLock.yield(ulong) shared
()
#3 0x00000000006b27c0 in
core.internal.spinlock.SpinLock.lock() shared ()
#4 0x00000000006a7244 in
gc.gc.GC.runLocked!(gc.gc.GC.mallocNoSync(ulong, uint, ref
ulong, const(TypeInfo)), gc.gc.mallocTime, gc.gc.numMallocs,
ulong, uint, ulong, const(TypeInfo)).runLocked(ref ulong, ref
uint, ref ulong, ref const(TypeInfo)) ()
#5 0x00000000006a0bc6 in gc.gc.GC.malloc(ulong, uint, ulong*,
const(TypeInfo))
()
#6 0x00000000006721d3 in gc_qalloc ()
#7 0x00000000006a99a1 in rt.lifetime.__arrayAlloc(ulong,
const(TypeInfo), const(TypeInfo)) ()
#8 0x000000000067523a in _d_newarrayU ()
#9 0x0000000000675324 in _d_newarrayiT ()
#10 0x000000000068fde6 in std.string.toStringz(const(char)[]) ()
#11 0x000000000068fe79 in
std.string.toStringz(const(immutable(char)[])) ()
#12 0x0000000000592dc9 in
unde.command_line.run.fork_command(unde.global_state.CMDGlobalState, immutable(char)[], immutable(char)[], std.concurrency.Tid) (
tid=..., command=..., cwd=..., cgs=0x7f3abcdffb80)
at source/unde/command_line/run.d:2002
What is it? For what it waits?
What context are you calling this from? Is this in a signal
handler? Or from inside a destructor of a GC-owned object?
