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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