On 1/27/11 1:35 AM, Philip Martin wrote:
Philip Martin<philip.mar...@wandisco.com> writes:
It appears that the kernel deadlock detection sometimes produces false
positives
I believe I was mistaken when I assumed that fcntl() would block just
the thread making the call; rereading the man page I think it is the
whole process that blocks. That means this is not a false positive.
I believe your first inclination was correct, that fcntl() just blocks the
calling thread. How could one system call block other threads from doing work?
I'm guessing the kernel doesn't look if the process is multithreaded and if its
making progress, it just assumes it is single threaded, which is why it has to
return EDEADLK.
Blair
