zfsonlinux/spl — pull request #202 by behlendorf (2012-12-19 01:05:57+00:00)
Title: Fix spl_kmem_init_kallsyms_lookup() panic

Due to I/O buffering the helper may return successfully before
the proc handler has a chance to execute. To catch this case
wait up to 1 second to verify spl_kallsyms_lookup_name_fn was
updated to a non SYMBOL_POISON value.

Signed-off-by: Brian Behlendorf
Issue zfsonlinux/zfs#699
Issue zfsonlinux/zfs#859