On Tue, 26 Jun 2018, at 09:52, Dave Cottlehuber wrote: > > The HPET NMI watchdog patch was very timely - works a treat: > https://reviews.freebsd.org/D15630 > > > However each time there's no crashdump, & the usual ctrl-alt-esc does't > > work either. > > I bumped my /usr/src to latest HEAD, applied HPET NMI watchdog hack & > after freezing via `service pf stop`, I was rewarded with a coredump > on next reboot; full log: https://git.io/f4Q4P > > [1202] panic: Assertion !in_epoch() && ! > mtx_owned(&(&(*(__typeof(vnet_entry_tcbinfo)*) (((((__curthread())- > >td_vnet))->vnet_data_base) + (uintptr_t)&vnet_entry_tcbinfo)))- > >ipi_lock) failed at /usr/src/sys/netinet/tcp_input.c:802
I narrowed it down to setting this sysctl: net.inet.ip.process_options=0 # ignore IP options in the incoming packets (default 1) and it looks like it was fixed here: r335749 thanks glebius@ https://svnweb.freebsd.org/base/head/sys/netinet/tcp_subr.c?r1=335749&r2=335748&pathrev=335749 I've not had a repeat since building off this. A+ Dave _______________________________________________ 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"
