The "lock up" was caused by SMSC RX FIFO underruns caused by maginal timing issue between SMSC and USB host controller. The hack is enforcing additional wait cycle between accesses. Unfortunately it affects all peripherals, thus the performance penalty.
What you observe is, I guess, situation when buffers are getting filled with data from Ethernet and are flushed to USB mass storage device and the host controller driver is "taking over" the bus, reducing SMSC traffic. Maybe you could use Streamline to see what is going on there :-) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/673820 Title: Ethernet dies during large file transfers on vexpress To manage notifications about this bug go to: https://bugs.launchpad.net/linux-linaro/+bug/673820/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
