Date: Fri, 20 Dec 2013 10:55:31 -0500 From: Allan Jude <freebsd@allanjude.com> To: freebsd-current@freebsd.org Subject: Re: ZFS/zpool command blocks ... locking up all terminals Message-ID: <52B46873.5060703@allanjude.com> In-Reply-To: <20131220115534.52e79a76@telesto> References: <20131220115534.52e79a76@telesto>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --96WHaaCsgIW5bh0LBGmj33T47nqRLbX5n Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On 2013-12-20 05:55, O. Hartmann wrote: > I have a faulty pool with an ambiguous label and I tried to resolve > that problem. ZFS is at the moment highly active copying data from > several volumes to another. > > Operating system: > > 11.0-CURRENT FreeBSD 11.0-CURRENT #1 r259522: Tue Dec 17 19:02:10 CET > 2013 amd64 > > In one terminal I exported the pool in question and tried to list it > via "zpool import". But the this command sequence locks up the terminal= > for an hour up! > > In another terminal I tried to issue to command "zpool status" to watch= > the status of the pools (I have several). But this terminal ist alos > locked up right now! > > What is wrong here? I had such an issue in 10.0-CURRENT as well. It > seems ZFS is locking everything up and can only be brought back by a > hard reset! What is going on? Why is zpool locking up in trying to > display a label-scrambled pool while the zpool status is then also > locked up, but latter is supposed to show the status of the other, > healthy pools? This reminds me of single-threaded tools which looks up > every operation consecutively issued after the blocking command. > > How is this to be solved? > > Oliver Can you input 'control + t' or otherwise send siginfo to see what run 'state' zpool is in? This usually consists of the ZFS function name and is often very revealing and gives a starting point for investigation --=20 Allan Jude --96WHaaCsgIW5bh0LBGmj33T47nqRLbX5n Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.16 (MingW32) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBAgAGBQJStGhzAAoJEJrBFpNRJZKfN5UQALyC0PKMMITpzFhzeALXNoi9 x+0nI7U/RwJ+dVXxuaCJYYSjjzf20Y0KtrtdrNRp4MQWAMalj9TsEnUfKUnDtIBE jjNy10lzB1BqMgMSaqP7jfFc1Ik135kG0nz2Q051m+7RsHUB6wQpJ+trtp7Wn1fa QSHkOnexWZI9M6FoeRXpqlzTNcqRP+wHfC64P1b76AIAB+3Mufye/H7AF1d3v9s1 cKwL/SnMYBjE6rdijtHksmGcTZixYMIyrc3CTTNOFfUdiXDFaBAxeKgVMQqVebA0 8NFd2lTQKgAjiDwcm1eJYKL1TTlyQ7N+E9ybYHOyTEXkgK7M1RACCrKmOycdsm1h qNpGPV357vwdHWfNLd5oS2t2HWLMjsKKcnYbw0E5ad1kQ494LGnH6MFour93XqeZ rkUgqMdnycvAJWMsQkXG5UbY0vjqXYuhGrnEKW3bC0qvwVKaK3azEfXGzETGg+fO pJEE+//kwwQdTEdsI2LABlNpMThNKg1eIKzRWTlYXKt8E4BUx8OqFQHQFCw1OpVW DMPZ8XmrmoVk6eD6YeP+wZyqmYrsUF5HvWdTjjVUpHiDtyRftcags8hJOFD2CwCd p50WHVJ463ZYILJI2wc0WQAvp5CoDK58Dt0pv8rpWu9oiX1kBBr+oA+1T9J5X9lj 8rhkbhptFFWjyuHMguQo =j5Kj -----END PGP SIGNATURE----- --96WHaaCsgIW5bh0LBGmj33T47nqRLbX5n--
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