Date: Sat, 24 Dec 2011 00:31:09 +0200 From: Andriy Gapon <avg@FreeBSD.org> To: Charlie Martin <crmartin@sgi.com> Cc: Eric Richards <erichards@sgi.com>, Larry Fenske <LFenske@sgi.com>, freebsd-stable@FreeBSD.org, "Peter W. Morreale" <morreale@sgi.com>, Jeremy Chadwick <freebsd@jdc.parodius.com> Subject: Re: PRINTF_BUFR_SIZE=4096? Message-ID: <4EF5012D.2000804@FreeBSD.org> In-Reply-To: <4EF4FED2.6020909@sgi.com> References: <4EF3B790.5050509@sgi.com> <20111223000705.GA6242@icarus.home.lan> <4EF4FED2.6020909@sgi.com>
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on 24/12/2011 00:21 Charlie Martin said the following: > In the course of looking at Jeremy's reponse to my query about a mystery panic, > I noted his recommendation that PRINTF_BUFR_SIZE be set to 256. Ever-obedient, > I went to set the value, and discovered instead that the conf file already has > it set to 4096. > > As he says below, there are concerns about setting the value too high causing > "major issues". > > I being Christmas and all I hate to ask Jeremy to dig up the post he mentioned, > but wonder if anyone can clue me in on what the major issues might be? Stack overflow. > Thanks, and regards > > Charlie Martin > > On 12/22/2011 05:07 PM, Jeremy Chadwick wrote: >> Also, be aware that the above stack trace is interspersed. Ultimately >> you get to clean up the output yourself. This is a long-standing >> problem with FreeBSD which can be helped but only slightly/barely by >> using "options PRINTF_BUFR_SIZE=256" in your kernel configuration (the >> default configs have a value of 128. Do not increase the value too >> high, there are concerns about it causing major issues; I can dig up the >> post that says that, but I'd rather not). > -- Andriy Gapon
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