On Thu, Oct 08, 2020 at 09:58:09PM +0000, Leverett, Bruce wrote: > In 12.1, we are seeing a page fault in unp_pcb_owned_lock2_slowpath, while > trying to lock unp2. Examination of the crash dump shows that unp2's > reference count is down to zero, which it shouldn't be, since the function > took a reference on it before unlocking unp. > > Could this be a bug that has been fixed in recent versions? I would look > into upgrading, or back-porting the fix, if a fix is known.
I recently fixed a few issues with the unix domain socket locking code. The commits were merged to stable/12 in r366488. There's a few earlier fixes in uipc_usrreq.c that were merged after 12.1, so you might have luck backporting those as well. I'm not sure what the specific bug is in your case; a backtrace at least might be enough to pinpoint it. _______________________________________________ freebsd-net@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
