On 8/24/07, Paul Clements <[EMAIL PROTECTED]> wrote: > This patch allows NBD I/O to be cancelled when a network outage occurs. > Previously, I/O would just hang, and if enough I/O was hung in nbd, the > system (at least user-level) would completely hang until a TCP timeout > (default, 15 minutes) occurred. > > The patch introduces a new ioctl NBD_SET_TIMEOUT that allows a transmit > timeout value (in seconds) to be specified. Any network send that > exceeds the timeout will be cancelled and the nbd connection will be > shut down. I've tested with various timeout values and 6 seconds seems > to be a good choice for the timeout. If the NBD_SET_TIMEOUT ioctl is not > called, you get the old (I/O hang) behavior.
Hi Paul, Thanks for implementing this! Do you happen to have an associated nbd-client patch for userspace? If not I'd be happy to coordinate with you and Wouter on a patch. regards, Mike - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
