linux-kernel - Re: kernel BUG in __cache_alloc_node at linux-2.6.git/mm/slab.c:3177!

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Message-ID: <17719.1849.245776.4501@cargo.ozlabs.ibm.com>
Date:	Thu, 19 Oct 2006 15:03:53 +1000
From:	Paul Mackerras <paulus@...ba.org>
To:	Christoph Lameter <clameter@....com>
Cc:	Will Schmidt <will_schmidt@...t.ibm.com>, akpm@...l.org,
	linuxppc-dev@...abs.org, linux-kernel@...r.kernel.org
Subject: Re: kernel BUG in __cache_alloc_node at linux-2.6.git/mm/slab.c:3177!

Christoph Lameter writes:

> Here is patch to add some printk to try to figure out what is going on. 
> Run with this and send me the console output leading up to the failure.

Here...  Thanks for your help on this.  I'll poke a bit further.

Linux version 2.6.19-rc2-test (paulus@...ngo) (gcc version 4.1.2 20060928 (prerelease) (Debian 4.1.1-15)) #37 SMP Thu Oct 19 14:05:18 EST 2006
[boot]0012 Setup Arch
No ramdisk, default root is /dev/sda2
EEH: PCI Enhanced I/O Error Handling Enabled
PPC64 nvram contains 7168 bytes
Zone PFN ranges:
  DMA             0 ->   524288
  Normal     524288 ->   524288
early_node_map[3] active PFN ranges
    1:        0 ->    32768
    0:    32768 ->   278528
    1:   278528 ->   524288
[boot]0015 Setup Done
Built 2 zonelists.  Total pages: 513760
Kernel command line: root=/dev/sdc3
[boot]0020 XICS Init
[boot]0021 XICS Done
PID hash table entries: 4096 (order: 12, 32768 bytes)
Console: colour dummy device 80x25
Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
freeing bootmem node 0
freeing bootmem node 1
Memory: 2046852k/2097152k available (5512k kernel code, 65056k reserved, 2204k data, 554k bss, 256k init)
Get cache descritor
__cache_alloc
__cache_alloc_node 0
fallback_alloc
__cache_alloc_node 0
__cache_alloc_node 1
kernel BUG in __cache_alloc_node at /home/paulus/kernel/powerpc/mm/slab.c:3185!
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