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Subject: Re: arm/161492: commit references a PR
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The following reply was made to PR arm/161492; it has been noted by GNATS.

From: dfilter@FreeBSD.ORG (dfilter service)
To: bug-followup@FreeBSD.org
Cc:  
Subject: Re: arm/161492: commit references a PR
Date: Sun, 16 Oct 2011 17:38:08 +0000 (UTC)

 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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