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| author |   Michael Ellerman <michael@ellerman.id.au> | 2007-04-18 11:50:09 +1000 |
|---|---|---|
| committer |   Paul Mackerras <paulus@samba.org> | 2007-05-02 20:04:29 +1000 |
| commit | ed16669298b26266fc0c81bcd4ecc4b4126f77eb (patch) | |
| tree | 82fe27139bb69780c5082d0281ae1f4757ebc5cb /arch/powerpc/mm/hash_utils_64.c | |
| parent | [POWERPC] Turn on corresponding PHY drivers in QE UEC platforms defconfigs (diff) | |
| download | linux-dev-ed16669298b26266fc0c81bcd4ecc4b4126f77eb.tar.xz linux-dev-ed16669298b26266fc0c81bcd4ecc4b4126f77eb.zip | |
[POWERPC] Initialise spinlock in the DEBUG_PAGEALLOC code
Fixes:
BUG: spinlock bad magic on CPU#0, swapper/0
lock: c00000000064ec30, .magic: 00000000, .owner: <none>/-1, .owner_cpu: 0
Call Trace:
[c00000000062b980] [c00000000000f920] .show_stack+0x6c/0x1a0 (unreliable)
[c00000000062ba20] [c0000000001c2b40] .spin_bug+0xb0/0xd4
[c00000000062bab0] [c0000000001c2ed0] ._raw_spin_lock+0x44/0x184
[c00000000062bb50] [c0000000003a42b4] ._spin_lock+0x10/0x24
[c00000000062bbd0] [c00000000002b4dc] .kernel_map_pages+0x198/0x278
[c00000000062bc90] [c000000000079720] .free_hot_cold_page+0x124/0x418
[c00000000062bd70] [c000000000530278] .free_all_bootmem_core+0x14c/0x224
[c00000000062be50] [c00000000052a178] .mem_init+0x68/0x170
[c00000000062bee0] [c00000000051d874] .start_kernel+0x2a0/0x37c
[c00000000062bf90] [c0000000000084c8] .start_here_common+0x54/0x8c
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/mm/hash_utils_64.c')
| -rw-r--r-- | arch/powerpc/mm/hash_utils_64.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c index 49618461defb..9b226fa7006f 100644 --- a/arch/powerpc/mm/hash_utils_64.c +++ b/arch/powerpc/mm/hash_utils_64.c @@ -103,7 +103,7 @@ int mmu_ci_restrictions; #ifdef CONFIG_DEBUG_PAGEALLOC static u8 *linear_map_hash_slots; static unsigned long linear_map_hash_count; -static spinlock_t linear_map_hash_lock; +static DEFINE_SPINLOCK(linear_map_hash_lock); #endif /* CONFIG_DEBUG_PAGEALLOC */ /* There are definitions of page sizes arrays to be used when none |