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xen-devel
Re: [Xen-devel] Very odd filesystem problem in dom0
> OK, this is definitely related to the length of the exec string, and the exec
> getting corrupted. I can't recreate it with the obvious echo `perl print
> 'a'x100`,
> but I can create it with the length of filenames in the directory -- i've
> even
> gotten it to corrupt to the point that argv[0] is showing up later in the arg
> string:
Building without writable pagetables gets rid of the problem. Kind of
good news in a way -- I have a reproducible test case where writable
p.t.'s always screw up. It's now worth my while to spend some "quality
time" with that code tomorrow. :-)
Hopefully any code bug(s) I find will also be responsible for the
other crashes/weirdnesses that people have been seeing (e.g., the rmap
crash [Flavio] and the crash in Xen [Dave Becker]).
-- Keir
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