Seth Hettich wrote: > I get this all the time, and have for months now. On two different > systems (both updated to -current about 2 times per month), both > PCs (but with greatly differing HW). > > What would be my first step to resolve this? I sent in a PR, with > lots of notes, things I tried, and stack dumps. I'm willing to do > some more work on it, if someone can point me in the right direction. > > panic: bremfree: bp 0xc77938f4 not locked > panic messages: > --- > panic: Most recently used by kqueue
Having just finished documenting all of the kqueue code internals for my own use, I can tell you exactly where this problem lies. If you look at the kqueue code itself, in /sys/kern/kern_event.c, you will see the function knote(). The knote() function is conceptually very simple; it iterates the knote list hung off an object on which an event has just occurred, and calls the function kn->kn_fop->f_event(kn, hint). If you remember Julian's recent commit to the queue.h to make the list iterators unsafe to do removes in (OK, technically, he didn't make the change for that, it was just a very important undesirable side effect 8-)), you will understand the problem. -- Terry To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
