> Am 2010-10-08 um 09:59 schrieb Florian Wobbe: > >>> Thank you, but the problem is most probably something in my server setup >>> that doesn't fit something in LuaTeX. >>> As I mentioned: I got no problems calling TeX directly, just from the >>> server process. >> >> All right. I have one more suggestion. If you don't want to dive into >> debugging via gdb you should try another attempt at strace. Previously you >> posted a tracedump of context. But it only shows context (the shell script) >> waiting and nothing related to luatex. You may want to make strace follow >> forks (-f). > > > Sorry, I've no experience using strace.
Some things are explained here: http://blog.ksplice.com/tag/unix/ > Here we are: > > This is how my process tree looked: > 14025 ? Sl 0:01 | \_ /var/www/xxx/bin/python > /var/www/xxx/.../manage.py runfcgi ... > 14116 ? S 0:00 | \_ /bin/sh -c set >> _context.log && > strace -f context --batchmode --once hello >> _context.log > 14117 ? S 0:00 | \_ strace -f context --batchmode > --once hello > 14118 ? T 0:00 | \_ /bin/sh > /var/opt/context/tex/texmf-linux-64/bin/context --batchmode --once hello > 14119 ? R 0:11 | \_ texlua > /var/opt/context/tex/texmf-linux-64/bin/mtxrun --script context --batchmode > --once hello > > The logfile was empty, texlua seemed to hang. I killed 14119 and got: > [...] > [pid 14119] brk(0xaa3c000) = 0xaa3c000 > [pid 14119] brk(0xaa5f000) = 0xaa5f000 > [pid 14119] brk(0xaa82000) = 0xaa82000 > [pid 14119] brk(0xaaa3000) = 0xaaa3000 > [pid 14119] uname({sys="Linux", node="aine.fiee.net", ...}) = 0 This output looks quite messy because it is composed of the mixed output for five processes. I don't suspect the fault in luatex executable itself, however, mtxrun calls uname -m in a subshell and my guess is that it hangs there. Have you tried calling uname alone from your script? Next you could do strace -ff -o ctxtrace mtxrun --script context --batchmode --once hello This gives you hopefully four ctxtrace.<pid> files. Then do (for each pid) strace -p <pid> before killing luatex and see where it hangs. Interrupt and kill your luatex and have a look at the ctxtrace.* files. Florian ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________
