Date: Fri, 29 Sep 2006 17:37:40 -0400 From: Kris Kennaway <kris@obsecurity.org> To: Craig Boston <craig@feniz.gank.org>, David G Lawrence <dg@dglawrence.com>, Scott Long <scottl@samsco.org>, freebsd-stable@freebsd.org, Oliver Brandmueller <ob@e-Gitt.NET>, John Baldwin <jhb@freebsd.org> Subject: Re: 6.2 SHOWSTOPPER - em completely unusable on 6.2 Message-ID: <20060929213740.GA37735@xor.obsecurity.org> In-Reply-To: <20060929212155.GB56501@nowhere> References: <451A1375.5080202@gneto.com> <20060927071538.GF22229@e-Gitt.NET> <451A4189.5020906@samsco.org> <20060927152824.GJ22229@e-Gitt.NET> <20060927155553.GB14563@icarus.home.lan> <20060927155904.GM22229@e-Gitt.NET> <451AA7B1.5080202@samsco.org> <20060929072741.GH14975@tnn.dglawrence.com> <20060929212155.GB56501@nowhere>
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--bp/iNruPH9dso1Pn Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Fri, Sep 29, 2006 at 04:21:55PM -0500, Craig Boston wrote: > Doesn't seem to have any effect for me (other than high sys% times). > qemu is really good at provoking my em0 to timeout. What might be useful for someone who can provoke this, is to configure your kernel with MUTEX_PROFILING, then do the following: sysctl debug.mutex.prof.enable=1 start_your_test_case sysctl debug.mutex.prof.enable=0 Then: sysctl debug.mutex.prof.stats > stats.out and provide access to that file. This will help to show whether something is causing Giant starvation. Kris --bp/iNruPH9dso1Pn Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (FreeBSD) iD8DBQFFHZIjWry0BWjoQKURAg5SAJ9AZk6h2Ynis4mdDqy/Ki0yoMS4vgCePy4s 2BEW7JtozSYh5Z2ZoZYePhs= =QWNa -----END PGP SIGNATURE----- --bp/iNruPH9dso1Pn--
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