Date: Sun, 16 Oct 2011 17:37:54 +0000 (UTC) From: Olivier Houchard <cognet@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r226441 - head/sys/arm/arm Message-ID: <201110161737.p9GHbsen072695@svn.freebsd.org>
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Author: cognet Date: Sun Oct 16 17:37:54 2011 New Revision: 226441 URL: http://svn.freebsd.org/changeset/base/226441 Log: Explicitely set ARM_RAS_START and ARM_RAS_END once the cacheline or the page has been allocated, or we could end up using random values, and bad things could happen. PR: arm/161492 Submitted by: Ian Lepore <freebsd AT damnhippie dot dyndns DOT org> MFC after: 1 week Modified: head/sys/arm/arm/machdep.c Modified: head/sys/arm/arm/machdep.c ============================================================================== --- head/sys/arm/arm/machdep.c Sun Oct 16 16:58:28 2011 (r226440) +++ head/sys/arm/arm/machdep.c Sun Oct 16 17:37:54 2011 (r226441) @@ -312,6 +312,8 @@ cpu_startup(void *dummy) m = vm_page_alloc(NULL, 0, VM_ALLOC_NOOBJ | VM_ALLOC_ZERO); pmap_kenter_user(ARM_TP_ADDRESS, VM_PAGE_TO_PHYS(m)); #endif + *(uint32_t *)ARM_RAS_START = 0; + *(uint32_t *)ARM_RAS_END = 0xffffffff; } SYSINIT(cpu, SI_SUB_CPU, SI_ORDER_FIRST, cpu_startup, NULL);
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