p1020 unstable with 3.2

[Alexander Graf]

On 24.12.2011, at 07:53, Benjamin Herrenschmidt wrote:

> On Fri, 2011-12-23 at 17:54 +0100, Alexander Graf wrote:
>> Hi guys,
>> 
>> While trying to test my latest patch queue for ppc kvm, I realized
>> that even though the device trees got updated, the p1020 box still is
>> unstable. The trace below is the one I've seen the most. It only
>> occurs during network I/O which happens a lot on that box, since I'm
>> running it using NFS root.
>> 
>> As for configuration, I use kumar's "merge" branch from today and the
>> p1020rdb.dts device tree provided in that tree.
>> 
>> The last known good configuration I'm aware of is 3.0.
>> 
>> Any ideas what's going wrong here?
> 
> Try SLAB instead of SLUB and let me know. It -could- be a bogon in SLUB
> that should be fixed upstream now but I think did hit 3.2

Yup, things seem a lot more stable with SLAB now :).


Alex