On Wed, 27 Nov 2002, Ian Dowse wrote: > In message <[EMAIL PROTECTED]>, Bruce Evans writes: > >Better fix mddestroy(). I don't know why it hangs ... I guess it is > >because it is called before initialization is completed in mdinit(), > >and there aren't enough state checks in mddestroy(). > > I think moving the line > > tsleep(sc, PRIBIO, "mdwait", 0); > > to just after the following `if' statement may do the trick. If the > wakeup() from mddestroy() comes in before md_kthread() gets to the > main loop, then it would be missed. I think jhb posted a better way > of synchronising with kthreads during their destruction, but I > haven't found the time to look into that yet.
Wouldn't Giant locking prevent races here? There is no locking in sight for the ioctl, but ioctl() holds Giant. Bruce To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
