[Mono-dev] Crash on build

[Greg Young]

Doesn't happen every time I build from source but occasionally get this.

ubuntu

MCS     [build] mscorlib.dll
Stacktrace:

  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) System.Environment.Exit (int) <0xffffffff>
  at Mono.CSharp.Driver.Main (string[]) <0x001f7>
  at (wrapper runtime-invoke) <Module>.runtime_invoke_int_object
(object,intptr,intptr,intptr) <0xffffffff>

Native stacktrace:

/home/greg/mono/mono/mini/mono() [0x4b74e8]
/home/greg/mono/mono/mini/mono() [0x50f2bb]
/home/greg/mono/mono/mini/mono() [0x423d42]
/lib/x86_64-linux-gnu/libpthread.so.0(+0xfbb0) [0x2b26f0058bb0]
/lib/x86_64-linux-gnu/libpthread.so.0(pthread_join+0x24) [0x2b26f0052164]
/home/greg/mono/mono/mini/mono() [0x5acce4]
/home/greg/mono/mono/mini/mono(mono_runtime_cleanup+0xe) [0x5a4aee]
/home/greg/mono/mono/mini/mono() [0x41b826]
/home/greg/mono/mono/mini/mono() [0x53f9bb]
[0x404b01bd]

Debug info from gdb:

[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00002b26f0058757 in __libc_waitpid (pid=pid at entry=30845,
stat_loc=stat_loc at entry=0x2b26ef75119c, options=options at entry=0) at
../sysdeps/unix/sysv/linux/waitpid.c:40
40 ../sysdeps/unix/sysv/linux/waitpid.c: No such file or directory.
  Id   Target Id         Frame
* 1    Thread 0x2b26ef754500 (LWP 30832) "mono" 0x00002b26f0058757 in
__libc_waitpid (pid=pid at entry=30845, stat_loc=stat_loc at entry=0x2b26ef75119c,
options=options at entry=0) at ../sysdeps/unix/sysv/linux/waitpid.c:40

Thread 1 (Thread 0x2b26ef754500 (LWP 30832)):
#0  0x00002b26f0058757 in __libc_waitpid (pid=pid at entry=30845,
stat_loc=stat_loc at entry=0x2b26ef75119c, options=options at entry=0) at
../sysdeps/unix/sysv/linux/waitpid.c:40
#1  0x00000000004b7575 in mono_handle_native_sigsegv (signal=signal at entry=11,
ctx=ctx at entry=0x2b26ef751ac0) at mini-exceptions.c:2299
#2  0x000000000050f2bb in mono_arch_handle_altstack_exception
(sigctx=sigctx at entry=0x2b26ef751ac0, fault_addr=<optimized out>,
stack_ovf=stack_ovf at entry=0) at exceptions-amd64.c:908
#3  0x0000000000423d42 in mono_sigsegv_signal_handler (_dummy=11,
info=0x2b26ef751bf0, context=0x2b26ef751ac0) at mini.c:6769
#4  <signal handler called>
#5  0x00002b26f0052164 in pthread_join (threadid=4077680384,
thread_return=thread_return at entry=0x0) at pthread_join.c:47
#6  0x00000000005acce4 in mono_gc_cleanup () at gc.c:1215
#7  0x00000000005a4aee in mono_runtime_cleanup (domain=domain at entry=0x153cfe0)
at appdomain.c:354
#8  0x000000000041b826 in mini_cleanup (domain=0x153cfe0) at mini.c:7626
#9  0x000000000053f9bb in ves_icall_System_Environment_Exit (result=0) at
icall.c:6517
#10 0x00000000404b01bd in ?? ()
#11 0x00000000015955b0 in ?? ()
#12 0x00002b26f1195458 in ?? ()
#13 0x00000000015a8cf0 in ?? ()
#14 0x00007fffc5914040 in ?? ()
#15 0x00007fffc5913f50 in ?? ()
#16 0x0000000000000000 in ?? ()

=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================

Aborted (core dumped)
make[8]: *** [../../class/lib/build/tmp/mscorlib.dll] Error 134
make[7]: *** [do-all] Error 2
make[6]: *** [all-recursive] Error 1
make[5]: *** [all-recursive] Error 1
make[4]: *** [profile-do--build--all] Error 2
make[3]: *** [profiles-do--all] Error 2
make[2]: *** [all-local] Error 2
make[2]: Leaving directory `/home/greg/mono/runtime'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/greg/mono'
make: *** [all] Error 2
FAIL!


-- 
Le doute n'est pas une condition agréable, mais la certitude est absurde.
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