Date: Wed, 17 Dec 2008 15:10:28 +0100 From: "Paul B. Mahol" <onemda@gmail.com> To: pluknet <pluknet@gmail.com> Cc: freebsd-hackers@freebsd.org Subject: Re: PRINTF_BUFR_SIZE in freebsd6 Message-ID: <3a142e750812170610r25a48762y845010c6898f52d4@mail.gmail.com> In-Reply-To: <a31046fc0812170552k31a7434cy9a13ea5c8322e94e@mail.gmail.com> References: <a31046fc0812160423g7508bdbdrb160e9d1ec12b6e3@mail.gmail.com> <20081216134035.GU2038@deviant.kiev.zoral.com.ua> <a31046fc0812170248g4fa19250j159c645bdcd4ac89@mail.gmail.com> <a31046fc0812170552k31a7434cy9a13ea5c8322e94e@mail.gmail.com>
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On 12/17/08, pluknet <pluknet@gmail.com> wrote: > 2008/12/17 pluknet <pluknet@gmail.com>: >> 2008/12/16 Kostik Belousov <kostikbel@gmail.com>: >>> On Tue, Dec 16, 2008 at 03:23:28PM +0300, pluknet wrote: >>>> Hi. >>>> >>>> Could the PRINTF_BUFR_SIZE option be safely merged into RELENG_6 without >>>> merging a possible underlining infrastructure and breaking something >>>> else? >>>> I want to use it in my custom freebsd6 because I see "interspersed >>>> strings >>>> written from different CPUs at the same time": >>>> >>>> uuusseseerrvmrem: vlmivmeimtme :e mx:ceed eldi bly 2i89m68m (iihttt t >>>> pde) eaxtx cfcorke1 22e3e >>>> deded ebyd by28 296898 68(h t(tpdh) att ftorkp1 22d3 >>>> ) at fork1 223 >>>> >>>> I'm talking about only merging kern/subr_prf.c 1.126, 1.128, 1.129. >>>> >>>> Thanks. >>> >>> I did a backport of the option some time ago, see >>> http://people.freebsd.org/~kib/misc/releng_6_printf_bufr.3.patch >>> >> >> Thank you! >> >> 6.3 system panics (many page faults, one after another) early at boot >> without the option, and boots with it in the QEMU environment. >> Next step to test it on a real (and SMPable) hardware. >> > > Now tested on a real 2xXeon 3.0 w/ HTT enabled w/ PRINTF_BUFR_SIZE enabled. > > Received the following panic: And how big is PRINTF_BUFR_SIZE ? -- Paul
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