[Mono-dev] Mono hangs on shutdown when /dev/ttySx ports were opened.

[Zoltan Varga]

Hi,

  You can attach to the hung process with gdb and type
'thread apply all bt' to get a native backtrace, and/or
send a SIGUSR1 signal to the process to print a manager backtrace.

               Zoltan

On Thu, Sep 17, 2009 at 12:15 PM, Leszek Ciesielski <skolima at gmail.com>wrote:

> Hi,
>
> we have tried to isolate the problem for almost a month, the best we
> managed to get is a hardware configuration for our application that
> hangs on every exit - but this is with about 8MB of binaries, probably
> over 100k SLOC. What I am hoping for now are some gdb guidelines to
> pinpoint the problem.
>
> Regards
>
> On Thu, Sep 17, 2009 at 12:02 PM, Zoltan Varga <vargaz at gmail.com> wrote:
> > Hi,
> >
> >   Could you create some kind of test case to help us debug this issue ?
> >
> >             Zoltan
> >
> > On Thu, Sep 17, 2009 at 11:28 AM, Leszek Ciesielski <skolima at gmail.com>
> > wrote:
> >>
> >> Hi,
> >>
> >> I am experiencing Mono hangup when my application should terminate.
> >> The application opens multiple serial ports, but the bug has also
> >> manifested when network sockets were hanging on reads or writes - it
> >> seems to be related to a pending I/O operation, asynchronous
> >> networking helps somewhat. Anyway, the managed code exits, Mono CPU
> >> usage jumps to 100%, /proc/PID/status shows 4 threads and the
> >> application never exits. kill -3 PID prints:
> >>
> >> "0" tid=0x0xb7d0f6f0 this=0x0x2fed8 thread handle 0x404 state: waiting
> >> on 0x400 : Event owns ()
> >>
> >> and that's all. What can I do to help debug this?
> >>
> >> BTW this happens on 1.9 (Debian and Gentoo) and 2.4.2.3 (Debian and
> >> OpenSuse) [so I'm pretty sure it's not distribution-specific], more
> >> often if the application uses System.Windows.Forms.
> >>
> >> Regards,
> >>
> >> Leszek 'skolima' Ciesielski
> >> _______________________________________________
> >> 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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