SegFault using deque in 2.4b3 - Oh well, make that 2.4-a-3 ... (NT)
behnel_ml at dvs1.informatik.tu-darmstadt.de
Thu Sep 30 15:12:41 CEST 2004
> In Python 2.4-a-3, the deque is causing a segfault on two different
> machines I tested on.
> With deque, my program runs fine for a while (at least some tens of
> seconds up to minutes) and then suddenly segfaults.
> I'm sorry I can't tell exactly when, but I'm running an application that
> uses a few hundred deques where elements are appendleft()ed and pop()ed
> (simple queue). As the application is rather complex (and I didn't read
> about this error before anywhere), I guess it could be quite a bit of
> work for me to come up with a test case.
> At least I couldn't reproduce it with simple loops running interleaved
> pop/appendleft and my machine has enough memory, so that's not the
> problem. I'm not using things like Psyco either, which BTW (in 2.4)
> segfaults as well (1.2 and CVS).
> Anyway, when I replace the deque with this:
> class deque(list):
> def appendleft(self, item):
> self.insert(0, item)
> the segfault disappears, so it's definitely deque's fault.
> Has anyone else observed this problem?
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