diff options
| author | Ionut Nicu <ionut.nicu@freescale.com> | 2008-03-06 03:12:54 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-04-07 13:49:19 +1000 |
| commit | 221ac329e93fe2a676346af2e98e311251648f69 (patch) | |
| tree | fda0c1f9ce619a3f34576a95e94b3385cc154fe3 /include | |
| parent | 0119536cd314ef95553604208c25bc35581f7f0a (diff) | |
[POWERPC] Fix kernel panic in arch_arm_kprobe
The code in arch_arm_kprobe was trying to set a breakpoint which
resulted in a page fault because the kernel text pages were write
protected. Disable the write protect when CONFIG_KPROBES is defined.
Signed-off-by: Ionut Nicu <ionut.nicu@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-powerpc/pgtable-ppc32.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/asm-powerpc/pgtable-ppc32.h b/include/asm-powerpc/pgtable-ppc32.h index 2c79f550272..bd5b4011c53 100644 --- a/include/asm-powerpc/pgtable-ppc32.h +++ b/include/asm-powerpc/pgtable-ppc32.h @@ -420,7 +420,8 @@ extern int icache_44x_need_flush; #define _PAGE_IO (_PAGE_KERNEL | _PAGE_NO_CACHE | _PAGE_GUARDED) #define _PAGE_RAM (_PAGE_KERNEL | _PAGE_HWEXEC) -#if defined(CONFIG_KGDB) || defined(CONFIG_XMON) || defined(CONFIG_BDI_SWITCH) +#if defined(CONFIG_KGDB) || defined(CONFIG_XMON) || defined(CONFIG_BDI_SWITCH) ||\ + defined(CONFIG_KPROBES) /* We want the debuggers to be able to set breakpoints anywhere, so * don't write protect the kernel text */ #define _PAGE_RAM_TEXT _PAGE_RAM |