Hi,
On Tue, Jun 19, 2012 at 06:59:42, CF Adad wrote:
Anyway, we have advanced our kernel to today's latest l-o (3.5-rc2). Though
we are not considering the GPMC a likely source of the error at this moment,
I'm considering exploring this patchset. Unfortunately, the NAND is very
critical
@vger.kernel.org linux-omap@vger.kernel.org; Tony Lindgren
t...@atomide.com; Shilimkar, Santosh santosh.shilim...@ti.com
Sent: Tuesday, June 12, 2012 7:14 AM
Subject: RE: Please help! AM35xx mm/slab.c BUG
Hi,
On Fri, Jun 08, 2012 at 01:20:13, CF Adad wrote:
Thanks for your thoughts! I may try
An update:
*LAN9221 and GPMC off the hook?*
We've isolated the GPMC away from this I believe by disabling the LAN9221 in
both our bootloaders and the kernel and by booting everything off the SD cards
only. By removing it's initialization code from the respective board files, I
*hope* we've
2012/6/14 CF Adad cfa...@rocketmail.com:
An update:
*LAN9221 and GPMC off the hook?*
We've isolated the GPMC away from this I believe by disabling the LAN9221 in
both our bootloaders and the kernel and by booting everything off the SD
cards only. By removing it's initialization code from
@vger.kernel.org; Tony Lindgren t...@atomide.com; Shilimkar,
Santosh santosh.shilim...@ti.com
Sent: Thursday, June 14, 2012 3:10 PM
Subject: Re: Please help! AM35xx mm/slab.c BUG
2012/6/14 CF Adad cfa...@rocketmail.com:
An update:
*LAN9221 and GPMC off the hook?*
We've isolated the GPMC away
Hi,
On Fri, Jun 08, 2012 at 01:20:13, CF Adad wrote:
Thanks for your thoughts! I may try fiddling a bit just to see if that helps.
5 series of patches for gpmc modifications [1-5] has been posted,
In case it helps in resolving your issue, please let me know.
You will have to use the new
AM
Subject: RE: Please help! AM35xx mm/slab.c BUG
Hi,
On Fri, Jun 08, 2012 at 01:20:13, CF Adad wrote:
Thanks for your thoughts! I may try fiddling a bit just to see if that helps.
5 series of patches for gpmc modifications [1-5] has been posted,
In case it helps in resolving your issue, please
Hi ,
On Wed, Jun 06, 2012 at 13:21:23, CF Adad wrote:
Thanks again. I'm really starting to think the GPMC almost has to be
contributing.
Does adding cycle2cycle delay / bus turnaround prevent the issue ?,
SMSC datasheet mentions about special restrictions on back to back read
and
: Thursday, June 7, 2012 5:32 AM
Subject: RE: Please help! AM35xx mm/slab.c BUG
Hi ,
On Wed, Jun 06, 2012 at 13:21:23, CF Adad wrote:
Thanks again. I'm really starting to think the GPMC almost has to be
contributing.
Does adding cycle2cycle delay / bus turnaround prevent the issue ?,
SMSC
- Original Message -
From: CF Adad cfa...@rocketmail.com
To: Tony Lindgren t...@atomide.com
Cc: linux-omap@vger.kernel.org linux-omap@vger.kernel.org
Sent: Tuesday, June 5, 2012 12:29 PM
Subject: Re: Please help! AM35xx mm/slab.c BUG
Hi Tony,
Thanks so much for the response! All good
On Wed, Jun 6, 2012 at 11:44 AM, CF Adad cfa...@rocketmail.com wrote:
All,
We've learned a few more things:
1.) We have found a way to get it to happen pretty consistently. We simply
run iperf in a loop using the EMAC port to some other device.
2.) The crash ONLY happens on our custom
* Shilimkar, Santosh santosh.shilim...@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
2:36 AM
Subject: Re: Please help! AM35xx mm/slab.c BUG
On Wed, Jun 6, 2012 at 11:44 AM, CF Adad cfa...@rocketmail.com wrote:
All,
We've learned a few more things:
1.) We have found a way to get it to happen pretty consistently. We simply
run iperf in a loop using the EMAC port to some
@vger.kernel.org
Sent: Wednesday, June 6, 2012 3:10 AM
Subject: Re: Please help! AM35xx mm/slab.c BUG
* Shilimkar, Santosh santosh.shilim...@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
* CF Adad cfa...@rocketmail.com [120606 00:55]:
Do you folks know of a good reference for properly calculating these GPMC
settings?
In theory you just need to know the timings of connected components,
then check which ones depend on cycles and which ones depend on time.
Also take into
my 2 cents.
On 06/06/2012 11:41 AM, Tony Lindgren wrote:
* CF Adad cfa...@rocketmail.com [120606 00:55]:
Do you folks know of a good reference for properly calculating these GPMC
settings?
In theory you just need to know the timings of connected components,
then check which ones depend
; Shilimkar, Santosh
santosh.shilim...@ti.com; linux-omap@vger.kernel.org
linux-omap@vger.kernel.org
Sent: Wednesday, June 6, 2012 6:37 AM
Subject: Re: Please help! AM35xx mm/slab.c BUG
my 2 cents.
On 06/06/2012 11:41 AM, Tony Lindgren wrote:
* CF Adad cfa...@rocketmail.com [120606 00:55]:
Do you
* CF Adad cfa...@rocketmail.com [120604 23:47]:
All,
I'm **really** hoping someone out there can help us with this.
My team has been working with the AM3517 for several months now, and we seem
to be plagued every so often by what we have termed the slab bug. In
short, it looks
Subject: Re: Please help! AM35xx mm/slab.c BUG
* CF Adad cfa...@rocketmail.com [120604 23:47]:
All,
I'm **really** hoping someone out there can help us with this.
My team has been working with the AM3517 for several months now, and we seem
to be plagued every so often by what we have
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