On Sat, Nov 17, 2012 at 4:54 PM, Rafael Aquini <aquini@xxxxxxxxxx> wrote: > On Sat, Nov 17, 2012 at 01:01:30PM -0500, Sasha Levin wrote: >> >> I'm getting the following while fuzzing using trinity inside a KVM tools guest, >> on latest -next: >> >> [ 1642.783728] BUG: unable to handle kernel NULL pointer dereference at 0000000000000194 >> [ 1642.785083] IP: [<ffffffff8122b354>] isolate_migratepages_range+0x344/0x7b0 >> >> My guess is that we see those because of a race during the check in >> isolate_migratepages_range(). >> >> >> Thanks, >> Sasha > > Sasha, could you share your .config and steps you did used with trinity? So I > can attempt to reproduce this issue you reported. Basically try running trinity (with ./trinity -m --quiet --dangerous -l off) inside a disposable guest as root. I manage to hit that every couple of hours. Config attached. Thanks, Sasha Confi
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