Date: Mon, 15 Jun 2009 09:53:51 +0200 From: Gary Jennejohn <gary.jennejohn@freenet.de> To: Sam Leffler <sam@freebsd.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, Ed Schouten <ed@freebsd.org> Subject: Re: svn commit: r194204 - in head/sys: amd64/conf i386/conf Message-ID: <20090615095351.42d823c1@ernst.jennejohn.org> In-Reply-To: <4A356A0F.3050800@freebsd.org> References: <200906141801.n5EI1Zti056239@svn.freebsd.org> <4A356A0F.3050800@freebsd.org>
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On Sun, 14 Jun 2009 14:22:23 -0700 Sam Leffler <sam@freebsd.org> wrote: > Ed Schouten wrote: > > Author: ed > > Date: Sun Jun 14 18:01:35 2009 > > New Revision: 194204 > > URL: http://svn.freebsd.org/changeset/base/194204 > > > > Log: > > Enable PRINTF_BUFR_SIZE on i386 and amd64 by default. > > > > In the past there have been some reports of PRINTF_BUFR_SIZE not > > functioning correctly. Instead of having garbled console messages, we > > should just see whether the issues are still there and analyze them. > > > > When I suggested enabling this by default for SMP configurations I was > reminded it wasn't enabled because of potential stack overflow. > I've been using this for years and have yet to see a stack overflow. As a rule, kernel printf's seem to be short enough that a value of 128 is sufficient and doesn't result in stack pressure. --- Gary Jennejohn
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