John,
My primary suspect would be cache. But the fact that CONFIG_SYS_DCACHE_OFF is not helping is strange. Could you double-check this and also make sure that CONFIG_SYS_L2CACHE_OFF is enabled too.
regards, Aneesh
On Thursday 29 September 2011 11:50 AM, John Rigby wrote:
Aneesh, Dirk, Jason:
During our monthly release testing of Linaro images we discovered that the kernel was pretty unreliable with the latest upstream u-boot. After bisecting we found that reverting this patch fixes the problem
commit 45bf05854bc94ed8bae9e9114292895b990327ea Author: Aneesh Vaneesh@ti.com Date: Thu Jun 16 23:30:53 2011 +0000
armv7: adapt omap3 to the new cache maintenance framework adapt omap3 to the new layered cache maintenance framework Signed-off-by: Aneesh V<aneesh@ti.com>No idea why because we tried disabling cache by adding CONFIG_SYS_DCACHE_OFF to the board config but that did not seem to fix the problem. The problem in the kernel was general instability usually ending in the rootfs not being mounted. Sometimes random kernel crashes have been observed. We have never made it to a shell prompt before reverting.
If we figure anything else out we will let you know.
--john