Date: Mon, 14 Feb 2000 11:32:57 -0300 (EST) From: Fabio Cesar Gozzo <fabio@iqm.unicamp.br> To: freebsd-emulation@freebsd.org Cc: fabio@iqm.unicamp.br Subject: Linux shared memory Message-ID: <200002141432.LAA99522@thomson.iqm.unicamp.br>
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Hi all, I'm trying to run parallel linux program under FreeBSD but I'm having some problems. The program makes use of fork() to create a another process and thus, to use the extra CPU. However, the parallel version stops with a "shmget failed.:Invalid argument" message. Accordind to the vendor, I should increase the shared memory parameter, because the default 32MB of linux isn't enough. They suggest increasing it to 64MB by either editing the SHMMAX parameter in /usr/src/linux/include/asm/shmparam.h or by simply executing the command: # echo "67108864" >/proc/sys/kernel/shmmax I tried to increase the undocumented kernel parameter SHMMAX to 128MB but now it stops with "shmget failed.: Cannot allocate memory" Is this a linux emulation or a FreeBSD shared memory issue ? I'm using linux_base-6.1 under 4.0-20000208-CURRENT on a dual PIII 550 with 512MB RAM. I'm specifying 2 processors available to the program. Please, CC to me. Thank you, -- ************************************************** Fabio Gozzo fabio@iqm.unicamp.br State University of Campinas UNICAMP Chemistry Institute http://thomson.iqm.unicamp.br ************************************************** -- ************************************************** Fabio Gozzo fabio@iqm.unicamp.br State University of Campinas UNICAMP Chemistry Institute http://thomson.iqm.unicamp.br ************************************************** To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-emulation" in the body of the message
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