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SubjectRe: [PATCH -rt] race condition in fs/compat.c with compat_sys_ioctl
FromAndi Kleen <>
Date16 Nov 2005 06:55:28 +0100
Steven Rostedt <rostedt@goodmis.org> writes:
> > That's the problem. I found out that one ioctl might sleep holding the
> sem and won't be woken up until another process calls another ioctl to
> wake it up. But unfortunately, the one waking up the sleeper will block
> on the sem.  (the killer was tty_wait_until_sent)

You should have looked into mainline first. The semaphore is already gone
because it wasn't even needed anymore.

-Andi
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