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@0x80000000 > mem=128M@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 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html