Am Sonntag, 28. Februar 2010 04:35 schrieb SteveG: > On 28/02/10 13:18, SteveG wrote: > > On 28/02/10 13:08, Andrew Brunner wrote: > >> I would never Process Application Messages from a timer thread. > >> > >> I suspect a threadlock going on. Does it work OK without the > >> application.processmessages? > >> > >> On Sat, Feb 27, 2010 at 9:02 PM, SteveG<[email protected]> wrote: > >>> I have just updated Laz (svn) and Fpc(2.4.0) and have hit a > >>> problem with my > >>> program. (worked ok with Laz 0.98 / fpc 2.?.?) > >>> > >>> I use a dyn loaded lib with my app, which seems to be relevant. > >>> > >>> If I call Application.ProcessMessages from within a > >>> TTimer.OnTimer event, my > >>> app now locks solid showing 'futex_wait_queue_me' in the process > >>> listing. > >>> > >>> I havent yet been able to narrow down an exact cause, as a simple > >>> app/lib > >>> test works ok. > >>> > >>> Would anybody know what would cause the above state (futex), as a > >>> clue to > >>> the change in Laz/Fpc affecting my app ? > > > > It does seem to work without the App.proc call. The problem I have > > seems to be caused by calling App.proc once my lib is loaded. This > > was the closest I have been able to get in narrowing down to a > > small test case. I call App.procMsgs from within my lib which is > > where the actual problem seems to be. > > > > Is there any other way to create a 'pause' from within a > > library/function call (not sleep, as it 'stops' the program). > > My 'pause' function is works as :> > > StTm := NOW; > > while NOW < (StTm + TmOut) do begin > > Sleep(1); > > Application.ProcessMessages; > > end; > > > > This worked ok before the Laz/fpc update, but seems to be broken > > now ? This is just my 'guess' so far as where my problem lies ? > > After more study (read as: more google) - it may be related to the > kernel changes in Ubuntu 10.04 - seems to be many unrelated programs > suffering similar problems - will continue this story as I find more > :)
Could you please post some of those links? Is this an Ubuntu specific kernel change? Thanks, Burkhard -- _______________________________________________ Lazarus mailing list [email protected] http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
