if you can check out the lines shortly preceding the first read(4, 0xbfffdc0c, 32) = -1 EAGAIN (Resource temporarily unavailable)
there may be some useful information there. I don't know nearly enough to do anything with this stuff ;) rick On Tue, 20 Feb 2001, Pascal Hos wrote: > Well the same happens when using ssh or rsh or any variant of remote login. > The environments are exactly the same when logged in locally or remote. > > strace matlab hangs on the following statement: > bash-2.03$ strace matlab > execve("/usr/local/bin/matlab", ["matlab"], [/* 23 vars */]) = 0 > brk(0) = 0x80bb3ec > ....... > > <snip> > > ....... > read(4, 0xbfffdc0c, 32) = -1 EAGAIN (Resource temporarily > unavailable) > select(5, [4], NULL, NULL, NULL) = 1 (in [4]) > read(4, "\1\0:\1\0\0\0\0\1\0\0\0\2\0\0\0t\370\377\277\334\234*\10"..., 32) = > 32 > write(4, "\217\16\2\0\0\0\0\0", 8) = 8 > read(4, 0xbfffdbc8, 32) = -1 EAGAIN (Resource temporarily > unavailable) > select(5, [4], NULL, NULL, NULL) = 1 (in [4]) > read(4, "\1\370;\1\200\0\0\0\4\0\0\0 \0\0\0\0\20\0\0\0\0\0\0\0\0"..., 32) = 32 > read(4, "#\0\0\0\4\0\0\0\1\0\0\0\10\0\0\0\10\0\0\0\10\0\0\0\0\0"..., 128) = > 128 > rt_sigprocmask(SIG_SETMASK, NULL, [RT_0], 8) = 0 > rt_sigsuspend([] > > I have no idea what that means. Maybe one of you knows. Anyway, thanks for > replying. > > Pascal > > On Tuesday 20 February 2001 17:46, Brian May wrote: > > >>>>> "Erik" == Erik Steffl <[EMAIL PROTECTED]> writes: > > > > Erik> Pascal Hos wrote: > > >> I just received my matlab R12 student version and I'm having > > >> some difficulties getting it to work correctly on potato. When > > >> I start it from an xterm the splash screen shows up and it then > > >> the program hangs. The strange part is that if I su as myself > > >> and then execute matlab, everything works just fine!? The same > > >> problem occurs as root. What could be happening here? > > > > Try strace matlab? > > > > Erik> I suspect that program tries to figure out who's ruinning > > Erik> it and does not succeed - perhaps it uses entry in utmp/wtmp > > Erik> and xterm does not log entry there but su does. also check > > Erik> the differences between environments (when you open xterm > > Erik> and then when you su) > > > > Is Matlab still based on libc5? > > > > If so that might be a problem - the format of utmp/wtmp IIRC has > > changed from libc5 to libc6. > > > > (then again, if that was the case it shouldn't work with su...). > > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] >