Date: Sun, 21 Feb 2010 22:10:40 +1100 From: Peter Jeremy <peterjeremy@acm.org> To: freebsd-current@freebsd.org Subject: Re: Non-responsive 8.0-RC1 Message-ID: <20100221111040.GA82086@server.vk2pj.dyndns.org> In-Reply-To: <20091128212226.GA9841@server.vk2pj.dyndns.org> References: <20091128212226.GA9841@server.vk2pj.dyndns.org>
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--Q68bSM7Ycu6FN28Q Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2009-Nov-29 08:22:26 +1100, Peter Jeremy <peter@server.vk2pj.dyndns.org>= wrote: >My main server is running 8.0/amd64 from between RC1 and RC2 and I've >recently had a couple of long-duration hangs on it during which time >processes doing I/O will stop responding. > >The first time, it stopped responding for about 25 minutes and then >spontaneously corrected itself. I was logged in remotely the whole >time and Ctrl-T was responding throughout (claiming the process was >'runnable'). I tried starteding a second session - which got as far >as reporting the SSH banner I have configured and then did nothing. >The second time lasted about 5 minutes. It occurred again this morning on an 8-STABLE from late January after 21 days of uptime. On a whim, I tried perl -e '$a =3D "x" x 1000000;' and it immediately recovered - so this is just an extreme version of the ZFS slowdown that others have reported. --=20 Peter Jeremy --Q68bSM7Ycu6FN28Q Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (FreeBSD) iEYEARECAAYFAkuBFLAACgkQ/opHv/APuIe08ACgmnsg6gBzFdjlrFsDeL6sbBj8 WgsAn3+c5yAuQOp3uv2pCjepGwHiT4XX =DjNI -----END PGP SIGNATURE----- --Q68bSM7Ycu6FN28Q--
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