Subject: Transcode and pthreads
To: None <current-users@netbsd.org, tech-pkg@netbsd.org>
From: Vincent <10.50@free.fr>
List: tech-pkg
Date: 03/04/2007 20:09:41
Hi there,

I've been trying to compile and use the multimedia/transcode package. It 
does not work, because it never exits: e.g "transcode -h" gives the help 
message and then stalls forever.

A ktrace reveals this:

   444      1 transcode RET   write 40/0x28
    444      1 transcode CALL  write(1,0x80a3000,0x23)
    444      1 transcode GIO   fd 1 wrote 35 bytes
        " -v                  print version
        "
    444      1 transcode RET   write 35/0x23
    444      1 transcode CALL  write(1,0x80a3000,1)
    444      1 transcode GIO   fd 1 wrote 1 bytes
        "
        "
    444      1 transcode RET   write 1
    444      1 transcode CALL  _lwp_wakeup(2)
    444      1 transcode RET   _lwp_wakeup 0
    444      2 transcode RET   __sigtimedwait -1 errno 87 Operation Canceled
    444      2 transcode CALL  __sigtimedwait(0x8095ff0,0xbb7fff2c,0)
    444      2 transcode RET   __sigtimedwait -1 errno 87 Operation Canceled
    444      2 transcode CALL  __sigtimedwait(0x8095ff0,0xbb7fff2c,0)
    444      1 transcode CALL  _lwp_wait(2,0xbfbfd818)
    444      2 transcode RET   __sigtimedwait 0
    444      2 transcode CALL  write(2,0xbb7ff7e0,0x2a)
    444      2 transcode GIO   fd 2 wrote 42 bytes
        "
         [transcode] (sighandler) SIGINT received
        "

It seems that _lwp_wakeup fails in some way therefore I was wondering if 
this has to do with the recent changes to libpthread.

TIA,
Vincent