> It seems to be caused by a bug in the higher layers in the
> kernel passing two buffer heads (the `bh' pointers) relating
> to the same block on disk. My investigations have led me to
> believe that the bug is in `ext2_truncate', perhaps a race
> condition when two processes execute this function + some
> other in parallel with certain specific parameters to the
> truncate syscall. I've still not found the bug, though, nor
> a minimal program which exposes it (but I am trying :-)
Hi Richard,
I'm interested in fixing the ext2_truncate problems, as there do seem to
be race conditions galore there. If you're able to replicate the
problems, would you be willing to run a diagnostic patch? I think I have
an idea of what's wrong, but would like to confirm it before making any
substantive changes.
Regards,
Bill
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