diff options
| author | Helge Deller <deller@parisc-linux.org> | 2006-01-15 20:11:50 +0100 |
|---|---|---|
| committer | Kyle McMartin <kyle@duet.int.mcmartin.ca> | 2006-01-23 02:26:55 +0100 |
| commit | 81a3de3efd61c2483a303cf0b6227525d2f28df7 (patch) | |
| tree | 038a7c16bab46260fa2e9cce6890ab4e042fc332 /arch/parisc | |
| parent | [PARISC] Add CONFIG_DEBUG_RODATA to protect read-only data (diff) | |
| download | linux-81a3de3efd61c2483a303cf0b6227525d2f28df7.tar.xz linux-81a3de3efd61c2483a303cf0b6227525d2f28df7.zip | |
[PARISC] Use DEBUG_KERNEL to catch used-after-free __init data
Use CONFIG_DEBUG_KERNEL to catch kernel code which tries to access
__init data after it is freed. When CONFIG_DEBUG_KERNEL is not set
this also cleans up a WARN_ON at boot time. Also remove some dead
code from mm/init.c
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Diffstat (limited to 'arch/parisc')
| -rw-r--r-- | arch/parisc/mm/init.c | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index 6f36d0b17d9e..7847ca13d6c2 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -371,17 +371,11 @@ static void __init setup_bootmem(void) void free_initmem(void) { - /* FIXME: */ -#if 0 - printk(KERN_INFO "NOT FREEING INITMEM (%dk)\n", - (&__init_end - &__init_begin) >> 10); - return; -#else unsigned long addr; printk(KERN_INFO "Freeing unused kernel memory: "); -#if 1 +#ifdef CONFIG_DEBUG_KERNEL /* Attempt to catch anyone trying to execute code here * by filling the page with BRK insns. * @@ -414,7 +408,6 @@ void free_initmem(void) pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BCOMPLETE); printk("%luk freed\n", (unsigned long)(&__init_end - &__init_begin) >> 10); -#endif } |