Hi. On Tue, Apr 09, 2002 at 01:08:04AM -0400, Jeff Roberson wrote: > This patch has seriously reduced file system deadlocks for several people. > It also makes concurrent file system access much faster in certain cases. > Since I have only heard good reports and no bad reports I'm going to > enable it by default. If you do experience some file system deadlocks > please let me know. You may revert to the previous behavior with 'options > LOOKUP_EXCLUSIVE'. I will take this away after a month or so if there are > no problems.
I've been struggling upgrading kernel since beginning of April, and finally found I have to add "options LOOKUP_EXCLUSIVE" to my kernel config file. Without LOOKUP_EXCLUSIVE, - some of the processes stall in "inode" state, and can't be killed by any signals - shutting down(and maybe unmounting) the system results in the panic: lockmgr: upgrade exclusive lock The stalling processes are all touching files under nullfs-mounted directories, so I think nullfs code is not yet LOOKUP_SHARED-safe. If anyone is interested, I can post the backtrace and my kernel config (after upgrading the world and rebuilding the panicking kernel). Regards. To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message