On 03/07/2010 08:43 PM, Antoine Martin wrote:

Antoine, can you check this? ltrace may help, or run 'strings libc.so |
grep pread'.

Or just add an

#undef CONFIG_PREADV

just before the first

#ifdef CONFIG_PREADV

in posix-aio-compat.c and see if that works.


It does indeed! qemu-kvm-0.12.3 is now seeing my partition again. woohoo!
So, PREAD makes it break... how, where? What does this mean?


No - preadv emulation in glibc breaks it. Likely the bug I mentioned in the other email on this thread.

--
Do not meddle in the internals of kernels, for they are subtle and quick to 
panic.

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