USB issue on Freescale's i.MX35 3-stack board

On Mon, May 16, 2011 at 02:15:36PM +0000, Nguyen Dinh-R00091 wrote:

Hi,

On the Freescale i.MX35 3DS board, there is a total of 256MB of DDR2
and the configuration is 128MB on Chip-select 0 and 128MB on
chip-select 1. So physically, the memory is not contiguous, so we boot
up the system with these mem= parameters(mem=128M at 0x80000000
mem=128M at 0x90000000). The system seems to be operating fine and passes
stress testing using memtester and oprofile, except for USB.

Running a USB copy stress test on USB mass storage between a USB HDD
and an SD/MMC card causes the system to hang. The hang can occur at
any time between 10 minutes to 2 hours. The hang is much harder to
re-create if logs or delays are introduced.

What kernel version are you using, and what host controller drivers?

thanks,

greg k-h