Date: Sat, 16 Feb 2013 11:46:22 -0600 From: Alan Cox <alc@rice.edu> To: Oleksandr Tymoshenko <gonzo@bluezbox.com> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, Andre Oppermann <andre@freebsd.org> Subject: Re: svn commit: r246204 - head/sys/arm/include Message-ID: <511FC5EE.2080207@rice.edu> In-Reply-To: <85D50AAD-F600-4EA5-9F92-146B2D6EA04C@bluezbox.com> References: <201302011026.r11AQVL9068427@svn.freebsd.org> <85D50AAD-F600-4EA5-9F92-146B2D6EA04C@bluezbox.com>
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On 02/16/2013 00:36, Oleksandr Tymoshenko wrote: > On 2013-02-01, at 2:26 AM, Andre Oppermann <andre@freebsd.org> wrote: > >> Author: andre >> Date: Fri Feb 1 10:26:31 2013 >> New Revision: 246204 >> URL: http://svnweb.freebsd.org/changeset/base/246204 >> >> Log: >> Add VM_KMEM_SIZE_SCALE parameter set to 2 (50%) for all ARM platforms. >> >> VM_KMEM_SIZE_SCALE specifies which fraction of the available physical >> memory, after deduction of the kernel itself and other early statically >> allocated memory, can be used for the kmem_map. The kmem_map provides >> for all UMA/malloc allocations in KVM space. >> >> Previously ARM was using a fixed kmem_map size of (12*1024*1024) = 12MB >> without regard to effectively available memory. This is too small for >> recent ARM SoC with more than 128MB of RAM. >> >> For reference a description of others related kmem_map parameters: >> >> VM_KMEM_SIZE default start size of kmem_map if SCALE is >> not defined >> VM_KMEM_SIZE_MIN hard floor on the kmem_map size >> VM_KMEM_SIZE_MAX hard ceiling on the kmem_map size >> VM_KMEM_SIZE_SCALE fraction of the available real memory to >> be used for the kmem_map, limited by the >> MIN and MAX parameters. >> >> Tested by: ian >> MFC after: 1 week > Hi Andre, > > this commit brake my Pandaboard with 1GB of memory. It panics early with > following message: > > kmem_suballoc: bad status return of 3 > > If you need additional info/debugging - just let me know. > > Have you tried the patch from the message that I posted to the arm mailing listing on Monday? So far, no one has responded to my request for testing that patch. Regards, Alan
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