Date: Sun, 22 Feb 2015 10:54:54 -0800 From: Sean Bruno <sbruno@ignoranthack.me> To: Konstantin Belousov <kostikbel@gmail.com> Cc: FreeBSD current <freebsd-current@freebsd.org> Subject: Re: panic on application core dump? Message-ID: <54EA25FE.60401@ignoranthack.me> In-Reply-To: <20150222185352.GL74514@kib.kiev.ua> References: <54E8EA2A.7020904@ignoranthack.me> <20150221211712.GG74514@kib.kiev.ua> <54EA1325.6070009@ignoranthack.me> <20150222180425.GJ74514@kib.kiev.ua> <54EA241D.6020606@ignoranthack.me> <20150222185352.GL74514@kib.kiev.ua>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 On 02/22/15 10:53, Konstantin Belousov wrote: > On Sun, Feb 22, 2015 at 10:46:53AM -0800, Sean Bruno wrote: >> Hmm ... looks unrelated to signals (maybe). This looks like a >> common ZFS deadlock that is yet undiagnosed. I do not have a >> show alllocks command available in db> . I will show each lock >> information below: > Add witness. > >> >> db> show lockedvnods Locked vnodes >> >> 0xfffff801141a6588: tag zfs, type VDIR usecount 19, writecount 0, >> refcount 20 mountedhere 0 flags (VV_ROOT|VI_ACTIVE) v_object >> 0xfffff80079be4500 ref 0 pages 0 cleanbuf 0 dirtybuf 0 lock type >> zfs: EXCL by thread 0xfffff801ca10c4a0 (pid 75907, sh, tid >> 101262) with exclusive waiters pending > Without backtraces of the acquisition, it is not useful. You need > DEBUG_VFS_LOCKS for this. > > Thank you. I will do so and restart my non-determinstic test and see what I can find. sean -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQF8BAEBCgBmBQJU6iX7XxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXRCQUFENDYzMkU3MTIxREU4RDIwOTk3REQx MjAxRUZDQTFFNzI3RTY0AAoJEBIB78oecn5kw+wH/3lcy7AJOvOu3cIQilxmfovt rplhxp/t5lYVRS76FyBM9FekYtLZhK3uFyL2ZdEYNh11hjuitFXfaoADrZgyXvzI SxJhjKy3Zhqt8reeLvKM9MhhdyNWNrbufhB4mqsmamtCDKh7jQ7EDIRsES9EzBon brzZObtFTCNZgulQiTAWZZKNz0NH9hyJoPw9yHfXNTgVyLCkOBDDfCLLthiMd6l0 0RITV3CZ3W3RJvFWAnYU7iWaLWATEzOzPLhegRLG5G2P1khCxsYOH7+1BbOpF86N PCg49DuEsjhlhJrbX+CqRDb1oGI0/Gt+HE/RGkoCj77Ow98jyIH3Jg5vmhBJYN0= =2Fjt -----END PGP SIGNATURE-----
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