Re: core dump in pthread in mplayer in freebsd DomainU on Debian Linux Domain0

[Kip Macy <kip.macy@gmail.com>]

M:N support is currently busted on freebsd-xen. If you re-compile libc
to only use SYSTEM_SCOPE threads (one line makefile change), things
will work. Sorry for the inconvenience.

I'll get a little time to fix open issues when I get some servers this week.
 
                  -Kip

On 8/7/05, lepton <ytht.net@gmail.com> wrote:
> Hi!
>        After I have installed freebsd port for xen, I tried some
>        software on freebsd. I am a newbie of freebsd, I meet some
>        problems in mplayer, I don't know wether the problem was a
>        freebsd-xen "bug" or a freebsd "bug".
> 
>        When I compiled mplayer, it complained about pthread about
>        "Fatal error 'Thread has returned from _thread_switch' at line
>        1116 in file /usr/src/lib/libpthread/thread/thr_kern.c (errno =
>        0)", it won't compile.
> 
>        Then I moved to use port to compile mplayer, then it can
>        compile. I can use mplayer to play video without sound. But
>        after I have configured mplayer to use nas to output sound.
>        When I use mplayer, it will abort, and complain about
>         "Fatal error 'Thread has returned from _thread_switch' at line
>        1116 in file /usr/src/lib/libpthread/thread/thr_kern.c (errno =
>        0)"
> 
>        I have tried the following program (paste from configure script
>        of mplayer)
> 
>        #include <pthread.h>
>        void* func(void *arg) { return arg; }
>        int main(void) { pthread_t tid; return pthread_create (&tid, 0,
>        func, 0) == 0 ? 0 : 1; }
> 
>        when you use gcc -o test test.c -pthread
>        it will complain the same thing about pthread.
> 
>        when you use gcc -o test test.c -lc_r, the problem dispeared.
> 
>        Is pthread is broken on freebsd? or freebsd-xen? or I have do
>        something wrong?
> 
> 
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