Date: Sat, 8 Oct 2005 08:59:21 GMT From: Attila Nagy <bra@fsn.hu> To: freebsd-gnats-submit@FreeBSD.org Subject: amd64/87112: Boot problems on a 16 processor AMD64 compatible machine Message-ID: <200510080859.j988xLXW093423@www.freebsd.org> Resent-Message-ID: <200510080900.j9890TdV016162@freefall.freebsd.org>
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>Number: 87112 >Category: amd64 >Synopsis: Boot problems on a 16 processor AMD64 compatible machine >Confidential: no >Severity: serious >Priority: low >Responsible: freebsd-amd64 >State: open >Quarter: >Keywords: >Date-Required: >Class: change-request >Submitter-Id: current-users >Arrival-Date: Sat Oct 08 09:00:29 GMT 2005 >Closed-Date: >Last-Modified: >Originator: Attila Nagy >Release: 7-current >Organization: FSN >Environment: Not available >Description: On a 16 processor/16 GB RAM AMD64 compatible machine FreeBSD halts with "Too many segments in the physical address map, giving up". >How-To-Repeat: I don't know whether it's general, or only limited to this machine, but trying to boot FreeBSD with 16 processors could trigger the problem. >Fix: In src/sys/amd64/amd64/machdep.c: -#define PHYSMAP_SIZE (2 * 8) +#define PHYSMAP_SIZE (2 * 16) After this: FreeBSD/SMP: Multiprocessor System Detected: 16 CPUs cpu0 (BSP): APIC ID: 0 cpu1 (AP): APIC ID: 1 cpu2 (AP): APIC ID: 2 cpu3 (AP): APIC ID: 3 cpu4 (AP): APIC ID: 4 cpu5 (AP): APIC ID: 5 cpu6 (AP): APIC ID: 6 cpu7 (AP): APIC ID: 7 cpu8 (AP): APIC ID: 8 cpu9 (AP): APIC ID: 9 cpu10 (AP): APIC ID: 10 cpu11 (AP): APIC ID: 11 cpu12 (AP): APIC ID: 12 cpu13 (AP): APIC ID: 13 cpu14 (AP): APIC ID: 14 cpu15 (AP): APIC ID: 15 I didn't try with i386, but I guess that has the same problem. >Release-Note: >Audit-Trail: >Unformatted:
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