Re: Please help! AM35xx mm/slab.c BUG

[Tony Lindgren <tony@atomide.com>]

* Shilimkar, Santosh <santosh.shilimkar@ti.com> [120605 23:41]:
> 
> I don't know the AMXX architecture that well but looking at the
> crash-log, am not sure GPMC should play in role here.
> What I think is, it is mostly memory corruption and can be caused by
> many reasons as Tony outlined.

Bad GPMC timings can cause corruption on the smsc fifo, which can
cause random oopses especially with nfsroot.

I was seeing that on my zoom3 with nfsroot with bad muxing for GPMC
until we applied bce492c0 (ARM: OMAP2+: UART: Fix incorrect population of
default uart pads). That's easy to test by leaving out GPMC.
 
> To ensure that, your memory is in good state, can you run memtester
> for long duration and see that you
> are not getting any memory failures. Try to give the maximum memory
> size as a an input to memtester.

Yes and that should be left running for a few weeks on a group of
devices to verify things work once you think you have all the issues
fixed.

Regards,

Tony

 
> You can download one from [1]
> 
> Regards
> Santosh
> [1] http://pyropus.ca/software/memtester/