[Mono-dev] System.Threading.Monitor::Exit fails in latest trees

[Zoltan Varga]

Hi,

  The fix caused some regressions and had to be reverted. So this issue is
still open.

                 Zoltan

On Sat, Mar 6, 2010 at 8:23 PM, Zoltan Varga <vargaz at gmail.com> wrote:

> Hi,
>
>   This is now fixed in SVN HEAD/2.6 branch.
>
>                    Zoltan
>
>
> On Thu, Mar 4, 2010 at 3:12 PM, cpMon <page.cal at gmail.com> wrote:
>
>>
>> I never get a signal when System.Threading.Monitor::Exit gets called too
>> many
>> times. Further, I traced it down into the mono 2.6.1 code tree, and
>> mono_monitor_exit is never called. The trampoline generates the code, but
>> it's never called. Can you provide a quick fix? It seems like a glaring
>> bug.
>> Attached is the failing source test along with a mono trace.
>>
>> Thank You,
>> Cal Page
>>
>> using System;
>> using System.Threading;
>>
>> public class HelloWorld
>> {
>>        public static Object myMonitor = new Object();
>>        public static bool ok = false;
>>
>>        public static void monitorTest()
>>        {
>>                Console.WriteLine("calling Enter");
>>
>>                Monitor.Enter(myMonitor);
>>
>>                Console.WriteLine("calling Exit");
>>
>>                Monitor.Exit(myMonitor);
>>
>>                try {
>>
>>                        Console.WriteLine("calling Exit #2");
>>
>>                        Monitor.Exit(myMonitor);
>>                } catch ( Exception e ) {
>>                        Console.WriteLine ("caught exception");
>>                        ok = true;
>>                }
>>        }
>>
>>        static public void Main ()
>>        {
>>                Console.WriteLine ("Hello Mono World");
>>
>>                monitorTest();
>>
>>                if ( !ok ) Console.WriteLine("TEST FAILED");
>>        }
>>
>> }
>>
>>
>> Iinteral trace:
>>
>> ** Message: WSAStartup: high version 0x202
>> ** Message: mono_arch_create_monitor_exit_trampoline_full: entry
>> ** Message: mono_arch_create_monitor_enter_trampoline_full: entry
>> ** Message: mono_monitor_enter: (-1218435344) Locking 0x5cff0
>> ** Message: mono_monitor_try_enter_internal: (-1218435344) Trying to lock
>> object 0x5cff0 (-1 ms)
>> ** Message: mon_new: allocating more monitors: 16
>> ** Message: mono_monitor_enter: (-1218435344) Locking 0x6afc0
>> ** Message: mono_monitor_try_enter_internal: (-1218435344) Trying to lock
>> object 0x6afc0 (-1 ms)
>> Hello Mono World
>> calling Enter
>> ** Message: mono_monitor_enter: (-1218435344) Locking 0x5cff8
>> ** Message: mono_monitor_try_enter_internal: (-1218435344) Trying to lock
>> object 0x5cff8 (-1 ms)
>> calling Exit
>> calling Exit #2
>> TEST FAILED
>> ** Message: WSACleanup: cleaning up
>>
>>
>> --
>> View this message in context:
>> http://n4.nabble.com/System-Threading-Monitor-Exit-fails-in-latest-trees-tp1578116p1578116.html
>> Sent from the Mono - Dev mailing list archive at Nabble.com.
>> _______________________________________________
>> Mono-devel-list mailing list
>> Mono-devel-list at lists.ximian.com
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>>
>
>
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