segfault apparently in kernel, but little System.map help it seems:
The segfault above happened while running aptitude, but I don't think
that was the trigger, at least not directly.
It is not specific to this kernel version: it happens also with a
locally compiled stock kernels.
No X was running during this test. X is currently problematic on this
machine, but whether that is related I know not. No other obvious
problems after the segfaults.
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