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Matthew Ahrens
9867e8be2a
4891 want zdb option to dump all metadata Reviewed by: Sonu Pillai <sonu.pillai@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Christopher Siden <christopher.siden@delphix.com> Reviewed by: Dan McDonald <danmcd@omniti.com> Reviewed by: Richard Lowe <richlowe@richlowe.net> Approved by: Garrett D'Amore <garrett@damore.org> We'd like a way for zdb to dump metadata in a machine-readable format, so that we can bring that back from a customer site for in-house diagnosis. Think of it as a crash dump for zpools, which can be used for post-mortem analysis of a malfunctioning pool References: https://www.illumos.org/issues/4891 https://github.com/illumos/illumos-gate/commit/df15e41 Porting notes: - [cmd/zdb/zdb.c] -a5778eazdb: Introduce -V for verbatim import - In main() getopt 'opt' variable removed and the code was brought back in line with illumos. - [lib/libzpool/kernel.c] -1e33ac1Fix Solaris thread dependency by using pthreads -f0e324fUpdate utsname support -4d58b69Fix vn_open/vn_rdwr error handling - In vn_open() allocate 'dumppath' on heap instead of stack - Properly handle 'dump_fd == -1' error path - Free 'realpath' after added vn_dumpdir_code block Ported-by: kernelOfTruth kerneloftruth@gmail.com Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>