[Mono-dev] Deadlock in Mono 3.2.7
Christian Smith
smith.cba at gmail.com
Fri Dec 13 18:51:28 UTC 2013
Hi Joerg,
I just checked, I don't see any occurrences of Task.WhenAll()
unfortunately. Just lots of Task.FromResult...
-Christian
On 14 December 2013 01:17, Jörg Rosenkranz <joerg.rosenkranz at gmail.com>wrote:
> I've seen such behavior when using Task.WhenAll, but was not able to
> reproduce it in a simple test case.
> Any chance that the lib is using this call?
>
> Joerg.
>
>
> 2013/12/10 Christian Smith <smith.cba at gmail.com>
>
>> Hi,
>>
>> I've been running mono 3.2.7 & 3.2.3 and see deadlocks 100% of the time
>> on Windows & Linux when I run a small test case using the Azure blob
>> storage libraries. The code works fine without Mono and has been in
>> production for a long time.
>>
>> The test case creates 10 concurrent Tasks, each of which uploads,
>> downloads and deletes an 8MB file.
>>
>> I've got the backtrace below, I'm not 100% clear on it but maybe someone
>> else can see something fishy?
>>
>> Any help is greatly appreciated, thanks!
>>
>> -Christian
>>
>>
>> Using Mono built from source (GitHub) on Ubuntu 13.04 server x64
>>
>> $ /usr/local/bin/mono --version
>> Mono Runtime Engine version 3.2.7
>> (remotes/origin/mono-3.2.5-branch/9003740 Wed Dec 4 02:16:54 UTC 2013)
>> Copyright (C) 2002-2013 Novell, Inc, Xamarin Inc and Contributors.
>> www.mono-project.com
>> TLS: __thread
>> SIGSEGV: altstack
>> Notifications: epoll
>> Architecture: amd64
>> Disabled: none
>> Misc: softdebug
>> LLVM: supported, not enabled.
>> GC: sgen
>>
>>
>> (gdb) thread apply all bt
>>
>> Thread 27 (Thread 0x7fcb747e5700 (LWP 39275)):
>> #0 0x00007fcb7732cf80 in sem_wait () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000626e38 in mono_sem_wait (sem=sem at entry=0x96f5a0
>> <finalizer_sem>, alertable=alertable at entry=1)
>> at mono-semaphore.c:119
>> #2 0x00000000005a2d75 in finalizer_thread (unused=unused at entry=0x0) at
>> gc.c:1073
>> #3 0x0000000000586942 in start_wrapper_internal (data=0x266d380) at
>> threads.c:609
>> #4 start_wrapper (data=0x266d380) at threads.c:654
>> #5 0x000000000061b7c1 in thread_start_routine (args=args at entry=0x25eedd0)
>> at wthreads.c:294
>> #6 0x000000000062b710 in inner_start_thread (arg=0x2670ff0) at
>> mono-threads-posix.c:49
>> #7 0x00007fcb77326f8e in start_thread () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #8 0x00007fcb77050e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
>>
>> Thread 26 (Thread 0x7fcb6ff7c700 (LWP 39276)):
>> #0 0x00007fcb7732e43d in nanosleep () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x000000000061aaa7 in SleepEx (ms=ms at entry=500,
>> alertable=alertable at entry=1) at wthreads.c:842
>> #2 0x0000000000588673 in monitor_thread (unused=unused at entry=0x0) at
>> threadpool.c:779
>> #3 0x0000000000586942 in start_wrapper_internal (data=0x2aa43d0) at
>> threads.c:609
>> #4 start_wrapper (data=0x2aa43d0) at threads.c:654
>> #5 0x000000000061b7c1 in thread_start_routine (args=args at entry=0x25ef028)
>> at wthreads.c:294
>> #6 0x000000000062b710 in inner_start_thread (arg=0x2b04520) at
>> mono-threads-posix.c:49
>> #7 0x00007fcb77326f8e in start_thread () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #8 0x00007fcb77050e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
>>
>> Thread 25 (Thread 0x7fcb6fdff700 (LWP 39277)):
>> #0 0x00007fcb7732d071 in sem_timedwait () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000626f1b in mono_sem_timedwait (sem=sem at entry=0x96f208
>> <async_tp+40>, timeout_ms=timeout_ms at entry=2000,
>> alertable=alertable at entry=1) at mono-semaphore.c:82
>> #2 0x000000000058b292 in async_invoke_thread (data=0x0, data at entry=0x96f1e0
>> <async_tp>) at threadpool.c:1565
>> #3 0x0000000000586942 in start_wrapper_internal (data=0x2b04ac0) at
>> threads.c:609
>> #4 start_wrapper (data=0x2b04ac0) at threads.c:654
>> #5 0x000000000061b7c1 in thread_start_routine (args=args at entry=0x25ef0f0)
>> at wthreads.c:294
>> #6 0x000000000062b710 in inner_start_thread (arg=0x2b04710) at
>> mono-threads-posix.c:49
>> #7 0x00007fcb77326f8e in start_thread () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #8 0x00007fcb77050e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
>>
>> Thread 24 (Thread 0x7fcb6fbb5700 (LWP 39278)):
>> #0 0x00007fcb7732d071 in sem_timedwait () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000626f1b in mono_sem_timedwait (sem=sem at entry=0x96f208
>> <async_tp+40>, timeout_ms=timeout_ms at entry=2000,
>> alertable=alertable at entry=1) at mono-semaphore.c:82
>> #2 0x000000000058b292 in async_invoke_thread (data=0x0, data at entry=0x96f1e0
>> <async_tp>) at threadpool.c:1565
>> #3 0x0000000000586942 in start_wrapper_internal (data=0x7fcb680025c0) at
>> threads.c:609
>> #4 start_wrapper (data=0x7fcb680025c0) at threads.c:654
>> #5 0x000000000061b7c1 in thread_start_routine (args=args at entry=0x25ef348)
>> at wthreads.c:294
>> #6 0x000000000062b710 in inner_start_thread (arg=0x7fcb68002650) at
>> mono-threads-posix.c:49
>> #7 0x00007fcb77326f8e in start_thread () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #8 0x00007fcb77050e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
>>
>> Thread 23 (Thread 0x7fcb6f9b4700 (LWP 39279)):
>> #0 0x00007fcb7732aca4 in pthread_cond_wait@@GLIBC_2.3.2 () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000604c6b in _wapi_handle_timedwait_signal_handle
>> (handle=handle at entry=0x43e, timeout=timeout at entry=0x0,
>> alertable=alertable at entry=1, poll=poll at entry=0) at handles.c:1588
>> #2 0x0000000000604c9b in _wapi_handle_wait_signal_handle
>> (handle=handle at entry=0x43e, alertable=alertable at entry=1)
>> at handles.c:1533
>> #3 0x000000000061881d in WaitForSingleObjectEx (handle=0x43e,
>> timeout=timeout at entry=4294967295, alertable=alertable at entry=1)
>> at wait.c:196
>> #4 0x0000000000584aef in mono_wait_uninterrupted (thread=thread at entry=0x7fcb76d0b870,
>> multiple=multiple at entry=0,
>> numhandles=numhandles at entry=1, handles=handles at entry=0x7fcb6f9b1e78,
>> waitall=waitall at entry=0, ms=ms at entry=-1, alertable=1)
>> at threads.c:1497
>> #5 0x0000000000586279 in
>> ves_icall_System_Threading_WaitHandle_WaitOne_internal (this=<optimized
>> out>, handle=0x43e, ms=-1,
>> exitContext=<optimized out>) at threads.c:1629
>> #6 0x0000000041e3cf88 in ?? ()
>> #7 0x00007fcb58002540 in ?? ()
>> #8 0x00007fcb769400b8 in ?? ()
>> #9 0x00007fcb76809040 in ?? ()
>> #10 0x00007fcb6f9b1f20 in ?? ()
>> #11 0x00007fcb6f9b1ea0 in ?? ()
>> #12 0x00007fcb76809040 in ?? ()
>> #13 0x00007fcb768e5aa0 in ?? ()
>> #14 0x0000000000000000 in ?? ()
>>
>> Thread 22 (Thread 0x7fcb6f7b3700 (LWP 39280)):
>> #0 0x00007fcb7732aca4 in pthread_cond_wait@@GLIBC_2.3.2 () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000604c6b in _wapi_handle_timedwait_signal_handle
>> (handle=handle at entry=0x43e, timeout=timeout at entry=0x0,
>> alertable=alertable at entry=1, poll=poll at entry=0) at handles.c:1588
>> #2 0x0000000000604c9b in _wapi_handle_wait_signal_handle
>> (handle=handle at entry=0x43e, alertable=alertable at entry=1)
>> at handles.c:1533
>> #3 0x000000000061881d in WaitForSingleObjectEx (handle=0x43e,
>> timeout=timeout at entry=4294967295, alertable=alertable at entry=1)
>> at wait.c:196
>> #4 0x0000000000584aef in mono_wait_uninterrupted (thread=thread at entry=0x7fcb76d0b710,
>> multiple=multiple at entry=0,
>> numhandles=numhandles at entry=1, handles=handles at entry=0x7fcb6f7b0e78,
>> waitall=waitall at entry=0, ms=ms at entry=-1, alertable=1)
>> ---Type <return> to continue, or q <return> to quit---
>> at threads.c:1497
>> #5 0x0000000000586279 in
>> ves_icall_System_Threading_WaitHandle_WaitOne_internal (this=<optimized
>> out>, handle=0x43e, ms=-1,
>> exitContext=<optimized out>) at threads.c:1629
>> #6 0x0000000041e3cf88 in ?? ()
>> #7 0x00007fcb5c002540 in ?? ()
>> #8 0x00007fcb769400b8 in ?? ()
>> #9 0x00007fcb76809040 in ?? ()
>> #10 0x00007fcb6f7b0f20 in ?? ()
>> #11 0x00007fcb6f7b0ea0 in ?? ()
>> #12 0x00007fcb76809040 in ?? ()
>> #13 0x00007fcb768ecaa0 in ?? ()
>> #14 0x0000000000000000 in ?? ()
>>
>> Thread 21 (Thread 0x7fcb6f5b2700 (LWP 39282)):
>> #0 0x00007fcb7732d071 in sem_timedwait () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000626f1b in mono_sem_timedwait (sem=sem at entry=0x96f208
>> <async_tp+40>, timeout_ms=timeout_ms at entry=2000,
>> alertable=alertable at entry=1) at mono-semaphore.c:82
>> #2 0x000000000058b292 in async_invoke_thread (data=0x0, data at entry=0x96f1e0
>> <async_tp>) at threadpool.c:1565
>> #3 0x0000000000586942 in start_wrapper_internal (data=0x7fcb680025c0) at
>> threads.c:609
>> #4 start_wrapper (data=0x7fcb680025c0) at threads.c:654
>> #5 0x000000000061b7c1 in thread_start_routine (args=args at entry=0x25ef7f8)
>> at wthreads.c:294
>> #6 0x000000000062b710 in inner_start_thread (arg=0x7fcb68002b60) at
>> mono-threads-posix.c:49
>> #7 0x00007fcb77326f8e in start_thread () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #8 0x00007fcb77050e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
>>
>> Thread 20 (Thread 0x7fcb6f3b1700 (LWP 39283)):
>> #0 0x00007fcb7732aca4 in pthread_cond_wait@@GLIBC_2.3.2 () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000604c6b in _wapi_handle_timedwait_signal_handle
>> (handle=handle at entry=0x43e, timeout=timeout at entry=0x0,
>> alertable=alertable at entry=1, poll=poll at entry=0) at handles.c:1588
>> #2 0x0000000000604c9b in _wapi_handle_wait_signal_handle
>> (handle=handle at entry=0x43e, alertable=alertable at entry=1)
>> at handles.c:1533
>> #3 0x000000000061881d in WaitForSingleObjectEx (handle=0x43e,
>> timeout=timeout at entry=4294967295, alertable=alertable at entry=1)
>> at wait.c:196
>> #4 0x0000000000584aef in mono_wait_uninterrupted (thread=thread at entry=0x7fcb76d0b450,
>> multiple=multiple at entry=0,
>> numhandles=numhandles at entry=1, handles=handles at entry=0x7fcb6f3aee78,
>> waitall=waitall at entry=0, ms=ms at entry=-1, alertable=1)
>> at threads.c:1497
>> #5 0x0000000000586279 in
>> ves_icall_System_Threading_WaitHandle_WaitOne_internal (this=<optimized
>> out>, handle=0x43e, ms=-1,
>> exitContext=<optimized out>) at threads.c:1629
>> #6 0x0000000041e3cf88 in ?? ()
>> #7 0x00007fcb54002540 in ?? ()
>> #8 0x00007fcb769400b8 in ?? ()
>> #9 0x00007fcb76809040 in ?? ()
>> #10 0x00007fcb6f3aef20 in ?? ()
>> #11 0x00007fcb6f3aeea0 in ?? ()
>> #12 0x00007fcb76809040 in ?? ()
>> #13 0x00007fcb768faaa0 in ?? ()
>> #14 0x0000000000000000 in ?? ()
>>
>> Thread 19 (Thread 0x7fcb6f1b0700 (LWP 39284)):
>> #0 0x00007fcb7732aca4 in pthread_cond_wait@@GLIBC_2.3.2 () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000604c6b in _wapi_handle_timedwait_signal_handle
>> (handle=handle at entry=0x43e, timeout=timeout at entry=0x0,
>> alertable=alertable at entry=1, poll=poll at entry=0) at handles.c:1588
>> #2 0x0000000000604c9b in _wapi_handle_wait_signal_handle
>> (handle=handle at entry=0x43e, alertable=alertable at entry=1)
>> at handles.c:1533
>> #3 0x000000000061881d in WaitForSingleObjectEx (handle=0x43e,
>> timeout=timeout at entry=4294967295, alertable=alertable at entry=1)
>> at wait.c:196
>> #4 0x0000000000584aef in mono_wait_uninterrupted (thread=thread at entry=0x7fcb76d0b2f0,
>> multiple=multiple at entry=0,
>> numhandles=numhandles at entry=1, handles=handles at entry=0x7fcb6f1ade78,
>> waitall=waitall at entry=0, ms=ms at entry=-1, alertable=1)
>> at threads.c:1497
>> #5 0x0000000000586279 in
>> ves_icall_System_Threading_WaitHandle_WaitOne_internal (this=<optimized
>> out>, handle=0x43e, ms=-1,
>> exitContext=<optimized out>) at threads.c:1629
>> #6 0x0000000041e3cf88 in ?? ()
>> #7 0x00007fcb48002540 in ?? ()
>> #8 0x00007fcb769400b8 in ?? ()
>> #9 0x00007fcb76809040 in ?? ()
>> #10 0x00007fcb6f1adf20 in ?? ()
>> #11 0x00007fcb6f1adea0 in ?? ()
>> #12 0x00007fcb76809040 in ?? ()
>> #13 0x00007fcb76901aa0 in ?? ()
>> #14 0x0000000000000000 in ?? ()
>>
>> Thread 18 (Thread 0x7fcb6efaf700 (LWP 39285)):
>> #0 0x00007fcb7732d071 in sem_timedwait () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000626f1b in mono_sem_timedwait (sem=sem at entry=0x96f208
>> <async_tp+40>, timeout_ms=timeout_ms at entry=2000,
>> alertable=alertable at entry=1) at mono-semaphore.c:82
>> #2 0x000000000058b292 in async_invoke_thread (data=0x0, data at entry=0x96f1e0
>> <async_tp>) at threadpool.c:1565
>> #3 0x0000000000586942 in start_wrapper_internal (data=0x7fcb680025c0) at
>> threads.c:609
>> #4 start_wrapper (data=0x7fcb680025c0) at threads.c:654
>> #5 0x000000000061b7c1 in thread_start_routine (args=args at entry=0x25efca8)
>> at wthreads.c:294
>> #6 0x000000000062b710 in inner_start_thread (arg=0x7fcb68003070) at
>> mono-threads-posix.c:49
>> #7 0x00007fcb77326f8e in start_thread () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> ---Type <return> to continue, or q <return> to quit---
>> #8 0x00007fcb77050e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
>>
>> Thread 17 (Thread 0x7fcb6edae700 (LWP 39286)):
>> #0 0x00007fcb7732aca4 in pthread_cond_wait@@GLIBC_2.3.2 () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000604c6b in _wapi_handle_timedwait_signal_handle
>> (handle=handle at entry=0x43e, timeout=timeout at entry=0x0,
>> alertable=alertable at entry=1, poll=poll at entry=0) at handles.c:1588
>> #2 0x0000000000604c9b in _wapi_handle_wait_signal_handle
>> (handle=handle at entry=0x43e, alertable=alertable at entry=1)
>> at handles.c:1533
>> #3 0x000000000061881d in WaitForSingleObjectEx (handle=0x43e,
>> timeout=timeout at entry=4294967295, alertable=alertable at entry=1)
>> at wait.c:196
>> #4 0x0000000000584aef in mono_wait_uninterrupted (thread=thread at entry=0x7fcb76d0b030,
>> multiple=multiple at entry=0,
>> numhandles=numhandles at entry=1, handles=handles at entry=0x7fcb6edabe78,
>> waitall=waitall at entry=0, ms=ms at entry=-1, alertable=1)
>> at threads.c:1497
>> #5 0x0000000000586279 in
>> ves_icall_System_Threading_WaitHandle_WaitOne_internal (this=<optimized
>> out>, handle=0x43e, ms=-1,
>> exitContext=<optimized out>) at threads.c:1629
>> #6 0x0000000041e3cf88 in ?? ()
>> #7 0x00007fcb40002540 in ?? ()
>> #8 0x00007fcb769400b8 in ?? ()
>> #9 0x00007fcb76809040 in ?? ()
>> #10 0x00007fcb6edabf20 in ?? ()
>> #11 0x00007fcb6edabea0 in ?? ()
>> #12 0x00007fcb76809040 in ?? ()
>> #13 0x00007fcb7690faa0 in ?? ()
>> #14 0x0000000000000000 in ?? ()
>>
>> Thread 16 (Thread 0x7fcb6ebad700 (LWP 39287)):
>> #0 0x00007fcb7732d071 in sem_timedwait () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000626f1b in mono_sem_timedwait (sem=sem at entry=0x96f208
>> <async_tp+40>, timeout_ms=timeout_ms at entry=2000,
>> alertable=alertable at entry=1) at mono-semaphore.c:82
>> #2 0x000000000058b292 in async_invoke_thread (data=0x0, data at entry=0x96f1e0
>> <async_tp>) at threadpool.c:1565
>> #3 0x0000000000586942 in start_wrapper_internal (data=0x7fcb680025c0) at
>> threads.c:609
>> #4 start_wrapper (data=0x7fcb680025c0) at threads.c:654
>> #5 0x000000000061b7c1 in thread_start_routine (args=args at entry=0x25effc8)
>> at wthreads.c:294
>> #6 0x000000000062b710 in inner_start_thread (arg=0x7fcb680033d0) at
>> mono-threads-posix.c:49
>> #7 0x00007fcb77326f8e in start_thread () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #8 0x00007fcb77050e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
>>
>> Thread 15 (Thread 0x7fcb6e9ac700 (LWP 39288)):
>> #0 0x00007fcb7732d071 in sem_timedwait () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000626f1b in mono_sem_timedwait (sem=sem at entry=0x96f208
>> <async_tp+40>, timeout_ms=timeout_ms at entry=2000,
>> alertable=alertable at entry=1) at mono-semaphore.c:82
>> #2 0x000000000058b292 in async_invoke_thread (data=0x0, data at entry=0x96f1e0
>> <async_tp>) at threadpool.c:1565
>> #3 0x0000000000586942 in start_wrapper_internal (data=0x7fcb680025c0) at
>> threads.c:609
>> #4 start_wrapper (data=0x7fcb680025c0) at threads.c:654
>> #5 0x000000000061b7c1 in thread_start_routine (args=args at entry=0x25f0158)
>> at wthreads.c:294
>> #6 0x000000000062b710 in inner_start_thread (arg=0x7fcb68003580) at
>> mono-threads-posix.c:49
>> #7 0x00007fcb77326f8e in start_thread () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #8 0x00007fcb77050e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
>>
>> Thread 14 (Thread 0x7fcb6e7ab700 (LWP 39289)):
>> #0 0x00007fcb7732aca4 in pthread_cond_wait@@GLIBC_2.3.2 () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000604c6b in _wapi_handle_timedwait_signal_handle
>> (handle=handle at entry=0x43e, timeout=timeout at entry=0x0,
>> alertable=alertable at entry=1, poll=poll at entry=0) at handles.c:1588
>> #2 0x0000000000604c9b in _wapi_handle_wait_signal_handle
>> (handle=handle at entry=0x43e, alertable=alertable at entry=1)
>> at handles.c:1533
>> #3 0x000000000061881d in WaitForSingleObjectEx (handle=0x43e,
>> timeout=timeout at entry=4294967295, alertable=alertable at entry=1)
>> at wait.c:196
>> #4 0x0000000000584aef in mono_wait_uninterrupted (thread=thread at entry=0x7fcb76d0ac10,
>> multiple=multiple at entry=0,
>> numhandles=numhandles at entry=1, handles=handles at entry=0x7fcb6e7a8e78,
>> waitall=waitall at entry=0, ms=ms at entry=-1, alertable=1)
>> at threads.c:1497
>> #5 0x0000000000586279 in
>> ves_icall_System_Threading_WaitHandle_WaitOne_internal (this=<optimized
>> out>, handle=0x43e, ms=-1,
>> exitContext=<optimized out>) at threads.c:1629
>> #6 0x0000000041e3cf88 in ?? ()
>> #7 0x00007fcb3c002540 in ?? ()
>> #8 0x00007fcb769400b8 in ?? ()
>> #9 0x00007fcb76809040 in ?? ()
>> #10 0x00007fcb6e7a8f20 in ?? ()
>> #11 0x00007fcb6e7a8ea0 in ?? ()
>> #12 0x00007fcb76809040 in ?? ()
>> #13 0x00007fcb76924aa0 in ?? ()
>> #14 0x0000000000000000 in ?? ()
>>
>> Thread 13 (Thread 0x7fcb6e5aa700 (LWP 39290)):
>> #0 0x00007fcb7732aca4 in pthread_cond_wait@@GLIBC_2.3.2 () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000604c6b in _wapi_handle_timedwait_signal_handle
>> (handle=handle at entry=0x43e, timeout=timeout at entry=0x0,
>> alertable=alertable at entry=1, poll=poll at entry=0) at handles.c:1588
>> #2 0x0000000000604c9b in _wapi_handle_wait_signal_handle
>> (handle=handle at entry=0x43e, alertable=alertable at entry=1)
>> at handles.c:1533
>> #3 0x000000000061881d in WaitForSingleObjectEx (handle=0x43e,
>> timeout=timeout at entry=4294967295, alertable=alertable at entry=1)
>> at wait.c:196
>> #4 0x0000000000584aef in mono_wait_uninterrupted (thread=thread at entry=0x7fcb76d0aab0,
>> multiple=multiple at entry=0,
>> ---Type <return> to continue, or q <return> to quit---
>> numhandles=numhandles at entry=1, handles=handles at entry=0x7fcb6e5a7e78,
>> waitall=waitall at entry=0, ms=ms at entry=-1, alertable=1)
>> at threads.c:1497
>> #5 0x0000000000586279 in
>> ves_icall_System_Threading_WaitHandle_WaitOne_internal (this=<optimized
>> out>, handle=0x43e, ms=-1,
>> exitContext=<optimized out>) at threads.c:1629
>> #6 0x0000000041e3cf88 in ?? ()
>> #7 0x00007fcb30002540 in ?? ()
>> #8 0x00007fcb769400b8 in ?? ()
>> #9 0x00007fcb76809040 in ?? ()
>> #10 0x00007fcb6e5a7f20 in ?? ()
>> #11 0x00007fcb6e5a7ea0 in ?? ()
>> #12 0x00007fcb76809040 in ?? ()
>> #13 0x00007fcb7692baa0 in ?? ()
>> #14 0x0000000000000000 in ?? ()
>>
>> Thread 12 (Thread 0x7fcb6e3a9700 (LWP 39291)):
>> #0 0x00007fcb7732aca4 in pthread_cond_wait@@GLIBC_2.3.2 () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000604c6b in _wapi_handle_timedwait_signal_handle
>> (handle=handle at entry=0x43e, timeout=timeout at entry=0x0,
>> alertable=alertable at entry=1, poll=poll at entry=0) at handles.c:1588
>> #2 0x0000000000604c9b in _wapi_handle_wait_signal_handle
>> (handle=handle at entry=0x43e, alertable=alertable at entry=1)
>> at handles.c:1533
>> #3 0x000000000061881d in WaitForSingleObjectEx (handle=0x43e,
>> timeout=timeout at entry=4294967295, alertable=alertable at entry=1)
>> at wait.c:196
>> #4 0x0000000000584aef in mono_wait_uninterrupted (thread=thread at entry=0x7fcb76d0a950,
>> multiple=multiple at entry=0,
>> numhandles=numhandles at entry=1, handles=handles at entry=0x7fcb6e3a6e78,
>> waitall=waitall at entry=0, ms=ms at entry=-1, alertable=1)
>> at threads.c:1497
>> #5 0x0000000000586279 in
>> ves_icall_System_Threading_WaitHandle_WaitOne_internal (this=<optimized
>> out>, handle=0x43e, ms=-1,
>> exitContext=<optimized out>) at threads.c:1629
>> #6 0x0000000041e3cf88 in ?? ()
>> #7 0x00007fcb34002540 in ?? ()
>> #8 0x00007fcb769400b8 in ?? ()
>> #9 0x00007fcb76809040 in ?? ()
>> #10 0x00007fcb6e3a6f20 in ?? ()
>> #11 0x00007fcb6e3a6ea0 in ?? ()
>> #12 0x00007fcb76809040 in ?? ()
>> #13 0x00007fcb76932aa0 in ?? ()
>> #14 0x0000000000000000 in ?? ()
>>
>> Thread 11 (Thread 0x7fcb6e1a8700 (LWP 39292)):
>> #0 0x00007fcb7732d071 in sem_timedwait () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000626f1b in mono_sem_timedwait (sem=sem at entry=0x96f208
>> <async_tp+40>, timeout_ms=timeout_ms at entry=2000,
>> alertable=alertable at entry=1) at mono-semaphore.c:82
>> #2 0x000000000058b292 in async_invoke_thread (data=0x0, data at entry=0x96f1e0
>> <async_tp>) at threadpool.c:1565
>> #3 0x0000000000586942 in start_wrapper_internal (data=0x7fcb680025c0) at
>> threads.c:609
>> #4 start_wrapper (data=0x7fcb680025c0) at threads.c:654
>> #5 0x000000000061b7c1 in thread_start_routine (args=args at entry=0x25f0798)
>> at wthreads.c:294
>> #6 0x000000000062b710 in inner_start_thread (arg=0x7fcb68003c40) at
>> mono-threads-posix.c:49
>> #7 0x00007fcb77326f8e in start_thread () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #8 0x00007fcb77050e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
>>
>> Thread 10 (Thread 0x7fcb6d985700 (LWP 39294)):
>> #0 0x00007fcb770514d3 in epoll_wait () from
>> /lib/x86_64-linux-gnu/libc.so.6
>> #1 0x00000000005895e4 in tp_epoll_wait (p=p at entry=0x96f0a0
>> <socket_io_data>) at ../../mono/metadata/tpool-epoll.c:118
>> #2 0x0000000000586942 in start_wrapper_internal (data=0x7fcb2c06bec0) at
>> threads.c:609
>> #3 start_wrapper (data=0x7fcb2c06bec0) at threads.c:654
>> #4 0x000000000061b7c1 in thread_start_routine (args=args at entry=0x25f09f0)
>> at wthreads.c:294
>> #5 0x000000000062b710 in inner_start_thread (arg=0x7fcb2c071b60) at
>> mono-threads-posix.c:49
>> #6 0x00007fcb77326f8e in start_thread () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #7 0x00007fcb77050e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
>>
>> Thread 9 (Thread 0x7fcb6d944700 (LWP 39295)):
>> #0 0x00007fcb7732d071 in sem_timedwait () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000626f1b in mono_sem_timedwait (sem=sem at entry=0x96f148
>> <async_io_tp+40>, timeout_ms=timeout_ms at entry=2000,
>> alertable=alertable at entry=1) at mono-semaphore.c:82
>> #2 0x000000000058b292 in async_invoke_thread (data=0x0, data at entry=0x96f120
>> <async_io_tp>) at threadpool.c:1565
>> #3 0x0000000000586942 in start_wrapper_internal (data=0x7fcb2c06dc70) at
>> threads.c:609
>> #4 start_wrapper (data=0x7fcb2c06dc70) at threads.c:654
>> #5 0x000000000061b7c1 in thread_start_routine (args=args at entry=0x25f0ab8)
>> at wthreads.c:294
>> #6 0x000000000062b710 in inner_start_thread (arg=0x7fcb2c0545a0) at
>> mono-threads-posix.c:49
>> #7 0x00007fcb77326f8e in start_thread () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #8 0x00007fcb77050e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
>>
>> Thread 8 (Thread 0x7fcb0c9fc700 (LWP 39303)):
>> #0 0x00007fcb7732d071 in sem_timedwait () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000626f1b in mono_sem_timedwait (sem=sem at entry=0x96f208
>> <async_tp+40>, timeout_ms=timeout_ms at entry=2000,
>> alertable=alertable at entry=1) at mono-semaphore.c:82
>> #2 0x000000000058b292 in async_invoke_thread (data=0x0, data at entry=0x96f1e0
>> <async_tp>) at threadpool.c:1565
>> #3 0x0000000000586942 in start_wrapper_internal (data=0x7fcb680025c0) at
>> threads.c:609
>> #4 start_wrapper (data=0x7fcb680025c0) at threads.c:654
>> #5 0x000000000061b7c1 in thread_start_routine (args=args at entry=0x25f5fe0)
>> at wthreads.c:294
>> #6 0x000000000062b710 in inner_start_thread (arg=0x7fcb68004660) at
>> mono-threads-posix.c:49
>> #7 0x00007fcb77326f8e in start_thread () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> ---Type <return> to continue, or q <return> to quit---
>> #8 0x00007fcb77050e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
>>
>> Thread 7 (Thread 0x7fcaf75fa700 (LWP 39318)):
>> #0 0x00007fcb7732d071 in sem_timedwait () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000626f1b in mono_sem_timedwait (sem=sem at entry=0x96f208
>> <async_tp+40>, timeout_ms=timeout_ms at entry=2000,
>> alertable=alertable at entry=1) at mono-semaphore.c:82
>> #2 0x000000000058b292 in async_invoke_thread (data=0x0, data at entry=0x96f1e0
>> <async_tp>) at threadpool.c:1565
>> #3 0x0000000000586942 in start_wrapper_internal (data=0x7fcb680025c0) at
>> threads.c:609
>> #4 start_wrapper (data=0x7fcb680025c0) at threads.c:654
>> #5 0x000000000061b7c1 in thread_start_routine (args=args at entry=0x25f66e8)
>> at wthreads.c:294
>> #6 0x000000000062b710 in inner_start_thread (arg=0x7fcb68005420) at
>> mono-threads-posix.c:49
>> #7 0x00007fcb77326f8e in start_thread () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #8 0x00007fcb77050e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
>>
>> Thread 6 (Thread 0x7fcaf6df6700 (LWP 39325)):
>> #0 0x00007fcb7732d071 in sem_timedwait () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000626f1b in mono_sem_timedwait (sem=sem at entry=0x96f208
>> <async_tp+40>, timeout_ms=timeout_ms at entry=2000,
>> alertable=alertable at entry=1) at mono-semaphore.c:82
>> #2 0x000000000058b292 in async_invoke_thread (data=0x0, data at entry=0x96f1e0
>> <async_tp>) at threadpool.c:1565
>> #3 0x0000000000586942 in start_wrapper_internal (data=0x7fcb680025c0) at
>> threads.c:609
>> #4 start_wrapper (data=0x7fcb680025c0) at threads.c:654
>> #5 0x000000000061b7c1 in thread_start_routine (args=args at entry=0x25f6ad0)
>> at wthreads.c:294
>> #6 0x000000000062b710 in inner_start_thread (arg=0x7fcb68005c50) at
>> mono-threads-posix.c:49
>> #7 0x00007fcb77326f8e in start_thread () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #8 0x00007fcb77050e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
>>
>> Thread 5 (Thread 0x7fcaf63f1700 (LWP 39330)):
>> #0 0x00007fcb7732d071 in sem_timedwait () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000626f1b in mono_sem_timedwait (sem=sem at entry=0x96f208
>> <async_tp+40>, timeout_ms=timeout_ms at entry=2000,
>> alertable=alertable at entry=1) at mono-semaphore.c:82
>> #2 0x000000000058b292 in async_invoke_thread (data=0x0, data at entry=0x96f1e0
>> <async_tp>) at threadpool.c:1565
>> #3 0x0000000000586942 in start_wrapper_internal (data=0x7fcb680025c0) at
>> threads.c:609
>> #4 start_wrapper (data=0x7fcb680025c0) at threads.c:654
>> #5 0x000000000061b7c1 in thread_start_routine (args=args at entry=0x25f6eb8)
>> at wthreads.c:294
>> #6 0x000000000062b710 in inner_start_thread (arg=0x7fcb680065e0) at
>> mono-threads-posix.c:49
>> #7 0x00007fcb77326f8e in start_thread () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #8 0x00007fcb77050e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
>>
>> Thread 4 (Thread 0x7fcaf51e8700 (LWP 39344)):
>> #0 0x00007fcb7732d071 in sem_timedwait () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000626f1b in mono_sem_timedwait (sem=sem at entry=0x96f208
>> <async_tp+40>, timeout_ms=timeout_ms at entry=2000,
>> alertable=alertable at entry=1) at mono-semaphore.c:82
>> #2 0x000000000058b292 in async_invoke_thread (data=0x0, data at entry=0x96f1e0
>> <async_tp>) at threadpool.c:1565
>> #3 0x0000000000586942 in start_wrapper_internal (data=0x7fcb680025c0) at
>> threads.c:609
>> #4 start_wrapper (data=0x7fcb680025c0) at threads.c:654
>> #5 0x000000000061b7c1 in thread_start_routine (args=args at entry=0x25f7750)
>> at wthreads.c:294
>> #6 0x000000000062b710 in inner_start_thread (arg=0x7fcb680076c0) at
>> mono-threads-posix.c:49
>> #7 0x00007fcb77326f8e in start_thread () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #8 0x00007fcb77050e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
>>
>> Thread 3 (Thread 0x7fcaf4fe7700 (LWP 39345)):
>> #0 0x00007fcb7732d071 in sem_timedwait () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000626f1b in mono_sem_timedwait (sem=sem at entry=0x96f208
>> <async_tp+40>, timeout_ms=timeout_ms at entry=2000,
>> alertable=alertable at entry=1) at mono-semaphore.c:82
>> #2 0x000000000058b292 in async_invoke_thread (data=0x0, data at entry=0x96f1e0
>> <async_tp>) at threadpool.c:1565
>> #3 0x0000000000586942 in start_wrapper_internal (data=0x7fcb680025c0) at
>> threads.c:609
>> #4 start_wrapper (data=0x7fcb680025c0) at threads.c:654
>> #5 0x000000000061b7c1 in thread_start_routine (args=args at entry=0x25f7818)
>> at wthreads.c:294
>> #6 0x000000000062b710 in inner_start_thread (arg=0x7fcb68007740) at
>> mono-threads-posix.c:49
>> #7 0x00007fcb77326f8e in start_thread () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #8 0x00007fcb77050e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
>>
>> Thread 2 (Thread 0x7fcaf5bed700 (LWP 39362)):
>> #0 0x00007fcb7732d071 in sem_timedwait () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000626f1b in mono_sem_timedwait (sem=sem at entry=0x96f208
>> <async_tp+40>, timeout_ms=timeout_ms at entry=2000,
>> alertable=alertable at entry=1) at mono-semaphore.c:82
>> #2 0x000000000058b292 in async_invoke_thread (data=0x0, data at entry=0x96f1e0
>> <async_tp>) at threadpool.c:1565
>> #3 0x0000000000586942 in start_wrapper_internal (data=0x7fcb680025c0) at
>> threads.c:609
>> #4 start_wrapper (data=0x7fcb680025c0) at threads.c:654
>> #5 0x000000000061b7c1 in thread_start_routine (args=args at entry=0x25f9500)
>> at wthreads.c:294
>> #6 0x000000000062b710 in inner_start_thread (arg=0x7fcb68007100) at
>> mono-threads-posix.c:49
>> #7 0x00007fcb77326f8e in start_thread () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #8 0x00007fcb77050e1d in clone () from /lib/x86_64-linux-gnu/libc.so.6
>>
>> Thread 1 (Thread 0x7fcb77e5e7c0 (LWP 39274)):
>> #0 0x00007fcb7732aca4 in pthread_cond_wait@@GLIBC_2.3.2 () from
>> /lib/x86_64-linux-gnu/libpthread.so.0
>> #1 0x0000000000604c6b in _wapi_handle_timedwait_signal_handle
>> (handle=handle at entry=0xc2b, timeout=timeout at entry=0x0,
>> alertable=alertable at entry=1, poll=poll at entry=0) at handles.c:1588
>> #2 0x0000000000604c9b in _wapi_handle_wait_signal_handle
>> (handle=handle at entry=0xc2b, alertable=alertable at entry=1)
>> at handles.c:1533
>> #3 0x000000000061881d in WaitForSingleObjectEx (handle=0xc2b,
>> timeout=timeout at entry=4294967295, alertable=alertable at entry=1)
>> ---Type <return> to continue, or q <return> to quit---
>> at wait.c:196
>> #4 0x0000000000584aef in mono_wait_uninterrupted (thread=thread at entry=0x7fcb76d08010,
>> multiple=multiple at entry=0,
>> numhandles=numhandles at entry=1, handles=handles at entry=0x7fff4b3f8cd8,
>> waitall=waitall at entry=0, ms=ms at entry=-1, alertable=1)
>> at threads.c:1497
>> #5 0x0000000000586279 in
>> ves_icall_System_Threading_WaitHandle_WaitOne_internal (this=<optimized
>> out>, handle=0xc2b, ms=-1,
>> exitContext=<optimized out>) at threads.c:1629
>> #6 0x0000000041e3cf88 in ?? ()
>> #7 0x0000000002669960 in ?? ()
>> #8 0x00007fcb76ba5350 in ?? ()
>> #9 0x00007fcb76864210 in ?? ()
>> #10 0x00007fff4b3f8d90 in ?? ()
>> #11 0x00007fff4b3f8d00 in ?? ()
>> #12 0x00007fcb76864f88 in ?? ()
>> #13 0x00007fcb76864f20 in ?? ()
>> #14 0x00007fcb76ba5328 in ?? ()
>> #15 0xffffffffffffffff in ?? ()
>> #16 0x00007fcb74bb5c73 in System.Threading.WaitHandle:WaitOne (this=...,
>> millisecondsTimeout=0, exitContext=false)
>> at <unknown>:382
>> #17 0x00007fcb74bded91 in System.Threading.ManualResetEventSlim:Wait
>> (this=..., millisecondsTimeout=-1, cancellationToken=0)
>> at <unknown>:185
>> #18 0x00007fcb74bcd55c in System.Threading.Tasks.Task:WaitCore (this=...,
>> millisecondsTimeout=-1, cancellationToken=0)
>> at <unknown>:675
>> #19 0x00007fcb74bcd332 in System.Threading.Tasks.Task:Wait (this=...,
>> millisecondsTimeout=-1, cancellationToken=0)
>> at <unknown>:646
>> #20 0x00007fcb74bcd257 in System.Threading.Tasks.Task:Wait (this=...)
>> from /usr/local/lib/mono/4.5/mscorlib.dll.so
>> #21 0x0000000041e3c0a6 in ?? ()
>> #22 0x00007fcb76864f88 in ?? ()
>> #23 0x00007fcb76864f88 in ?? ()
>> #24 0x000000000000000f in ?? ()
>> #25 0x0000000000000011 in ?? ()
>> #26 0x00007fcb76800c78 in ?? ()
>> #27 0x5b5b5b5b5b5b5b5b in ?? ()
>> #28 0x0120202020202020 in ?? ()
>> #29 0x00007fcb76868f48 in ?? ()
>> #30 0x00007fcb76864f20 in ?? ()
>> #31 0x000000000000000f in ?? ()
>> #32 0x0000000000000000 in ?? ()
>> (gdb)
>>
>>
>> _______________________________________________
>> Mono-devel-list mailing list
>> Mono-devel-list at lists.ximian.com
>> http://lists.ximian.com/mailman/listinfo/mono-devel-list
>>
>>
>
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