Is this bug still alive ?
If so you may try this program on the frozen process.
Simply compile with :
cc survfutex.c -o survfutex
And try survfutex -u -p {pid_of_frozen}.
It uses ptrace(2) to attach process (just like strace does) then checks it is
frozen on a sys_futex wait, then poke a 0 at the waiting address. This should
warm up a bit ...
What is the nature of your frozen process ?
I experienced same trouble on program that uses "unsafe" function from a signal
handler (free, fprintf, ...).
Cheers,
-Rogers
** Attachment added: "sys_futex wait watcher and unfreezer."
http://librarian.launchpad.net/6853960/survfutex.c
--
[sparc] OOo build hangs in futex call
https://launchpad.net/bugs/59537
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