Files
kernel-tenderloin-3.0/include/linux
Linus Torvalds 6345d24daf mm: Fix boot crash in mm_alloc()
Thomas Gleixner reports that we now have a boot crash triggered by
CONFIG_CPUMASK_OFFSTACK=y:

    BUG: unable to handle kernel NULL pointer dereference at   (null)
    IP: [<c11ae035>] find_next_bit+0x55/0xb0
    Call Trace:
     [<c11addda>] cpumask_any_but+0x2a/0x70
     [<c102396b>] flush_tlb_mm+0x2b/0x80
     [<c1022705>] pud_populate+0x35/0x50
     [<c10227ba>] pgd_alloc+0x9a/0xf0
     [<c103a3fc>] mm_init+0xec/0x120
     [<c103a7a3>] mm_alloc+0x53/0xd0

which was introduced by commit de03c72cfc ("mm: convert
mm->cpu_vm_cpumask into cpumask_var_t"), and is due to wrong ordering of
mm_init() vs mm_init_cpumask

Thomas wrote a patch to just fix the ordering of initialization, but I
hate the new double allocation in the fork path, so I ended up instead
doing some more radical surgery to clean it all up.

Reported-by: Thomas Gleixner <tglx@linutronix.de>
Reported-by: Ingo Molnar <mingo@elte.hu>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-29 11:32:28 -07:00
..
2011-03-31 11:26:23 -03:00
2011-05-04 14:08:36 -07:00
2011-03-31 11:26:23 -03:00
2011-05-26 19:45:40 +02:00
2011-03-31 11:26:23 -03:00
2011-05-27 20:06:53 -07:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2011-04-01 02:24:31 -04:00
2011-05-28 17:41:46 +02:00
2011-03-22 17:43:59 -07:00
2011-03-11 14:25:50 +00:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2011-05-26 17:12:34 -07:00
2011-05-26 17:12:34 -07:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2011-03-22 17:44:15 -07:00
2011-05-19 15:59:38 -07:00
2011-05-23 10:47:06 -05:00
2011-05-29 13:03:09 +01:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2011-03-10 11:35:17 +01:00
2011-05-24 10:21:29 +02:00
2011-05-24 10:21:29 +02:00
2011-05-13 14:37:28 -04:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2011-03-14 19:12:20 -04:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2011-05-23 13:59:54 +02:00
2011-05-26 12:03:50 -07:00
2011-05-25 20:43:32 +02:00
2011-03-31 11:26:23 -03:00
2011-05-08 16:41:45 -07:00
2011-05-26 17:12:37 -07:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2011-05-25 08:39:52 -07:00
2011-05-24 22:55:24 +10:00
2011-03-31 11:26:23 -03:00
2011-05-22 08:47:53 -04:00
2011-03-31 11:26:23 -03:00
2011-05-19 20:50:53 -04:00
2011-05-24 14:33:35 +02:00
2011-04-25 18:14:10 -07:00
2011-05-29 11:32:28 -07:00
2011-05-26 17:12:36 -07:00
2011-05-19 16:55:27 +09:30
2011-03-31 11:26:23 -03:00
2011-05-20 11:46:11 -07:00
2011-03-23 15:29:04 -04:00
2011-05-26 17:12:34 -07:00
2011-04-20 17:01:19 +10:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2011-05-26 17:12:37 -07:00
2011-03-11 15:13:26 -05:00
2011-03-31 11:26:23 -03:00
2011-05-24 12:10:51 +02:00
2011-03-31 11:26:23 -03:00
2011-05-13 16:31:00 -07:00
2011-03-31 11:26:23 -03:00
2011-05-05 23:16:59 -07:00
2011-03-31 11:26:23 -03:00
2011-05-25 08:39:19 -07:00
2011-05-29 11:32:28 -07:00
2011-05-24 15:22:17 +02:00
2011-03-31 11:26:23 -03:00
2011-05-26 13:38:58 +10:00
2011-05-05 11:10:14 -07:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00