Date: Tue, 22 May 2012 07:04:23 +0000 (UTC) From: Andrew Turner <andrew@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r235776 - head/sys/vm Message-ID: <201205220704.q4M74NM6091183@svn.freebsd.org>
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Author: andrew Date: Tue May 22 07:04:23 2012 New Revision: 235776 URL: http://svn.freebsd.org/changeset/base/235776 Log: Fix booting on ARM. In PHYS_TO_VM_PAGE() when VM_PHYSSEG_DENSE is set the check if we are past the end of vm_page_array was incorrect causing it to return NULL. This value is then used in vm_phys_add_page causing a data abort. Reviewed by: alc, kib, imp Tested by: stas Modified: head/sys/vm/vm_page.c Modified: head/sys/vm/vm_page.c ============================================================================== --- head/sys/vm/vm_page.c Tue May 22 06:33:08 2012 (r235775) +++ head/sys/vm/vm_page.c Tue May 22 07:04:23 2012 (r235776) @@ -647,7 +647,7 @@ PHYS_TO_VM_PAGE(vm_paddr_t pa) long pi; pi = atop(pa); - if (pi >= first_page && pi < vm_page_array_size) { + if (pi >= first_page && (pi - first_page) < vm_page_array_size) { m = &vm_page_array[pi - first_page]; return (m); }
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