X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=arch%2Farm%2Fkernel%2Ftraps.c;h=35a052fc177aeaefbebd2ceb294805d472ac7d45;hb=05668381140309088443bf5dc53add4104610fbb;hp=10235b01582eb8fa2653d26e077536d4ffab0a75;hpb=ea9b395fe20ac74be788f415af2622ac8f0c35c7;p=pandora-kernel.git

diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 10235b01582e..35a052fc177a 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -12,13 +12,13 @@
  *  'linux/arch/arm/lib/traps.S'.  Mostly a debugging aid, but will probably
  *  kill the offending process.
  */
-#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/signal.h>
 #include <linux/spinlock.h>
 #include <linux/personality.h>
 #include <linux/ptrace.h>
 #include <linux/kallsyms.h>
+#include <linux/delay.h>
 #include <linux/init.h>
 
 #include <asm/atomic.h>
@@ -231,6 +231,13 @@ NORET_TYPE void die(const char *str, struct pt_regs *regs, int err)
 	__die(str, err, thread, regs);
 	bust_spinlocks(0);
 	spin_unlock_irq(&die_lock);
+
+	if (panic_on_oops) {
+		printk(KERN_EMERG "Fatal exception: panic in 5 seconds\n");
+		ssleep(5);
+		panic("Fatal exception");
+	}
+
 	do_exit(SIGSEGV);
 }
 
@@ -498,7 +505,7 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs)
 		if (!pmd_present(*pmd))
 			goto bad_access;
 		pte = pte_offset_map_lock(mm, pmd, addr, &ptl);
-		if (!pte_present(*pte) || !pte_write(*pte)) {
+		if (!pte_present(*pte) || !pte_dirty(*pte)) {
 			pte_unmap_unlock(pte, ptl);
 			goto bad_access;
 		}
@@ -680,6 +687,7 @@ EXPORT_SYMBOL(abort);
 
 void __init trap_init(void)
 {
+	unsigned long vectors = CONFIG_VECTORS_BASE;
 	extern char __stubs_start[], __stubs_end[];
 	extern char __vectors_start[], __vectors_end[];
 	extern char __kuser_helper_start[], __kuser_helper_end[];
@@ -690,9 +698,9 @@ void __init trap_init(void)
 	 * into the vector page, mapped at 0xffff0000, and ensure these
 	 * are visible to the instruction stream.
 	 */
-	memcpy((void *)0xffff0000, __vectors_start, __vectors_end - __vectors_start);
-	memcpy((void *)0xffff0200, __stubs_start, __stubs_end - __stubs_start);
-	memcpy((void *)0xffff1000 - kuser_sz, __kuser_helper_start, kuser_sz);
+	memcpy((void *)vectors, __vectors_start, __vectors_end - __vectors_start);
+	memcpy((void *)vectors + 0x200, __stubs_start, __stubs_end - __stubs_start);
+	memcpy((void *)vectors + 0x1000 - kuser_sz, __kuser_helper_start, kuser_sz);
 
 	/*
 	 * Copy signal return handlers into the vector page, and
@@ -701,6 +709,6 @@ void __init trap_init(void)
 	memcpy((void *)KERN_SIGRETURN_CODE, sigreturn_codes,
 	       sizeof(sigreturn_codes));
 
-	flush_icache_range(0xffff0000, 0xffff0000 + PAGE_SIZE);
+	flush_icache_range(vectors, vectors + PAGE_SIZE);
 	modify_domain(DOMAIN_USER, DOMAIN_CLIENT);
 }