Re: AT91SAM9G20 design and boot times

2009-06-11 Thread Nicolas Ferre
Hi, Aras Vaichas : Hi, we're designing our next generation RFID reader and I'm planning on using the AT91SAM9G20 in the next design. We currently use the AT91RM9200. Good choice ;-) Can I get some feedback from people with regards to general design configurations that affect the boot

Re: AT91SAM9G20 design and boot times

2009-06-11 Thread Robin Getz
On Thu 11 Jun 2009 08:48, Nicolas Ferre pondered: Aras Vaichas : * what is your boot time? What is the time from power-on to kernel running, how long does the kernel take to run until init starts, and how long does init take? [snip] That said, here are numbers from our not optimized demo

Re: Kernel crashing and log buffers...

2009-06-11 Thread David VomLehn
On Wed, Jun 10, 2009 at 09:26:40PM -0400, Robin Getz wrote: On 17 Oct 2007, after much discussion and debate, Mike added add two new functions for reading the kernel log buffer (from kernel space).

Re: Kernel crashing and log buffers...

2009-06-11 Thread David VomLehn
On Thu, Jun 11, 2009 at 02:52:38PM -0400, Robin Getz wrote: On Thu 11 Jun 2009 13:53, David VomLehn pondered: On Wed, Jun 10, 2009 at 09:26:40PM -0400, Robin Getz wrote: ... Our kernel does crash, so we have to do this. I had submitted a patch a while ago that tweaks emit_log_char, but this

Re: Kernel crashing and log buffers...

2009-06-11 Thread David VomLehn
On Thu, Jun 11, 2009 at 11:22:57AM -0700, Tim Bird wrote: David VomLehn wrote: Our kernel does crash, so we have to do this. I had submitted a patch a while ago that tweaks emit_log_char, but this was bounced, reasonably, because it would be interferring with the great majority of people

Re: Kernel crashing and log buffers...

2009-06-11 Thread Grant Erickson
On 6/11/09 11:52 AM, Robin Getz wrote: On Thu 11 Jun 2009 13:53, David VomLehn pondered: On Wed, Jun 10, 2009 at 09:26:40PM -0400, Robin Getz wrote: I would be interested in Paul and Russell - how have you solved this issue? (Or do your kernel's never crash? :) Our kernel does crash, so we

Re: Kernel crashing and log buffers...

2009-06-11 Thread Mike Frysinger
On Thu, Jun 11, 2009 at 13:53, David VomLehn wrote: On Wed, Jun 10, 2009 at 09:26:40PM -0400, Robin Getz wrote: On 17 Oct 2007, after much discussion and debate, Mike added add two new functions for reading the kernel log buffer (from kernel space).

Re: Kernel crashing and log buffers...

2009-06-11 Thread Wolfgang Denk
Dear David VomLehn, In message 20090612003302.ga23...@cuplxvomd02.corp.sa.net you wrote: However, the value and what's being proposed here and what I and others proposed--at least in the embedded kingdom--seems high and the features and implementation needn't be mutually exclusive. I