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37763ea2a6
= Issue Recently we hit an assertion panic in `dsl_process_sub_livelist` while exporting the spa and interrupting `bpobj_iterate_nofree`. In that case `bpobj_iterate_nofree` stops mid-way returning an EINTR without clearing the intermediate AVL tree that keeps track of the livelist entries it has encountered so far. At that point the code has a VERIFY for the number of elements of the AVL expecting it to be zero (which is not the case for EINTR). = Fix Cleanup any intermediate state before destroying the AVL when encountering EINTR. Also added a comment documenting the scenario where the EINTR comes up. There is no need to do anything else for the calles of `dsl_process_sub_livelist` as they already handle the EINTR case. Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Mark Maybee <mark.maybee@delphix.com> Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu> Signed-off-by: Serapheim Dimitropoulos <serapheim@delphix.com> Closes #13939 |
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