Re: 2.6.22-rc2-mm1

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On Thu, 24 May 2007, Ingo Molnar wrote:

> please also put in one of the keywords as the first word of whatever 
> SLUB prints:

I modified the reports as you suggested. Here is a sample:

BUG kmalloc-512: Redzone corrupted. Expected 0xbb at 0xffff81000208f8c0 but found 0xab
INFO: Last alloc: slab_sysfs_init+0x223/0x280 jiffies_ago=0 cpu=0 pid=1
INFO: Last free : slab_sysfs_init+0x22e/0x280 jiffies_ago=0 cpu=0 pid=1
INFO: Object=0xffff81000208f6c0 slab=0xffff810001071ea0 offset=14016
INFO: flags=0x4000000000002082 inuse=24 freelist=0xffff81000208f6c0
  Bytes b4 0xffff81000208f6b0:  55 db fe ff 00 00 00 00 5a 5a 5a 5a 5a 5a 5a 5a UUpÿ....ZZZZZZZZ
    Object 0xffff81000208f6c0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
    Object 0xffff81000208f6d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
    Object 0xffff81000208f6e0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
    Object 0xffff81000208f6f0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
    Object 0xffff81000208f700:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
    Object 0xffff81000208f710:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
    Object 0xffff81000208f720:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
    Object 0xffff81000208f730:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
   Redzone 0xffff81000208f8c0:  ab bb bb bb bb bb bb bb                         «»»»»»»»
FreePointer 0xffff81000208f8c8 -> 0xffff81000208f908
    Filler 0xffff81000208f900:  5a 5a 5a 5a 5a 5a 5a 5a                         ZZZZZZZZ

Call Trace:
 [<ffffffff8026d3aa>] check_bytes_and_report+0x7a/0xc0
 [<ffffffff8026d653>] check_object+0x63/0x260
 [<ffffffff8026fde4>] validate_slab+0x104/0x1b0
 [<ffffffff8026fea9>] validate_slab_slab+0x19/0x70
 [<ffffffff8026ff56>] validate_slab_cache+0x56/0x110
 [<ffffffff805d25ae>] slab_sysfs_init+0x24e/0x280
 [<ffffffff805c3624>] kernel_init+0xb4/0x290
 [<ffffffff8020a218>] child_rip+0xa/0x12
 [<ffffffff8038de48>] acpi_ds_init_one_object+0x0/0x7c
 [<ffffffff805c3570>] kernel_init+0x0/0x290
 [<ffffffff8020a20e>] child_rip+0x0/0x12

FIX kmalloc-512: Restoring Redzone (0xbb) from 0xffff81000208f8c0-0xffff81000208f8c7
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