On Tue, May 04, 2021 at 11:47:55AM +0200, Alexandr Nedvedicky wrote: > Hello Sebastien, > > On Tue, May 04, 2021 at 11:08:19AM +0200, Sebastien Marie wrote: > > Hi, > > > > Currently, I am regulary (~1 per day) get panic on an amd64 host (OpenBSD > > 6.9-current (GENERIC.MP) #492: Sat May 1 17:37:28 MDT 2021).
Previous working kernel was OpenBSD 6.9-current (GENERIC.MP) #477: Sat Apr 24 16:08:13 MDT 2021 > > panic: kernel diagnostic assertion "refcnt != ~0" failed: file > > "/usr/src/sys/kern/kern_synch.c", line 826 > > Starting stack trace... > > panic(ffffffff81dfbc8e) at panic+0x11d > > __assert(ffffffff81e64b54,ffffffff81e0a6ee,33a,ffffffff81e03b7f) at > > __assert+0x2b > > refcnt_rele(fffffd810bf02458) at refcnt_rele+0x6f > > pf_state_key_unref(fffffd810bf023f0) at pf_state_key_unref+0x21 > > pf_remove_state(fffffd810c0c4578) at pf_remove_state+0x1fa > > pf_purge_expired_states(2) at pf_purge_expired_states+0x232 > > pf_purge(ffffffff82236a30) at pf_purge+0x33 > > taskq_thread(ffff800000032080) at taskq_thread+0x81 > > end trace frame: 0x0, count: 249 > > End of stack trace. > > > > The machine is running with ddb.panic=0, and hangs before rebooting (I > > assume it hangs during dump). I just changed the config to keep in > > ddb, and I should be able to get additionnal informations next time. > > > > > > As it is panicing in pf related code, some informations on the > > network: the machine has two networks cards (sis0 and em0) bridged, > > and a vlan (in rdomain). > > > > em0 is egress, and sis0 has only a network printer behind it. > > > > It panics whereas there is no particular interaction with the host, > > but time of panic is on state removal so I assume after a timeout. > > > </snip> > > The assert is being tripped out of sudden? or are you also modifying state > table (pfctl -Fs). or something else is happening forced reboot/power > off... nothing that I know. The assert seems be raised suddenly. But according to the stacktrace, it occured due to call to pf_purge_expired_states(), it is why I mentioned timeout. thanks. -- Sebastien Marie
