Date: Mon, 22 Oct 2018 12:51:31 +0300 From: Konstantin Belousov <kostikbel@gmail.com> To: Hans Petter Selasky <hselasky@FreeBSD.org> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r339582 - head/sys/dev/sound/midi Message-ID: <20181022095131.GN5335@kib.kiev.ua> In-Reply-To: <201810220858.w9M8wSBZ039042@repo.freebsd.org> References: <201810220858.w9M8wSBZ039042@repo.freebsd.org>
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On Mon, Oct 22, 2018 at 08:58:28AM +0000, Hans Petter Selasky wrote: > Author: hselasky > Date: Mon Oct 22 08:58:27 2018 > New Revision: 339582 > URL: https://svnweb.freebsd.org/changeset/base/339582 > > Log: > Drop sequencer mutex around uiomove() and make sure we don't move more bytes > than is available, else a panic might happen. And why it is safe to drop the mutex ? If it is safe to drop, why do you need the mutex at all ?
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