I've had a handful of these, unfortunately I don't have a matching debug kernel and dump. Just wondering if anyone else has seen this or has any idea? Guessing spl race somewhere? What's the state of altq?
Kernel is: NetBSD slave 7.0_STABLE NetBSD 7.0_STABLE (SLAVE) #0: Thu Mar 31 10:32:02 AEDT 2016 stix@slave:/home/netbsd/netbsd-7/obj.amd64/home/netbsd/netbsd-7/src/sys/arch/amd64/compile/SLAVE amd64 May 14 12:42:17 slave /netbsd: fatal page fault in supervisor mode May 14 12:42:17 slave /netbsd: trap type 6 code 0 rip ffffffff80179806 cs 8 rflags 10286 cr2 8 ilevel 6 rsp fffffe80400059b0 May 14 12:42:17 slave /netbsd: curlwp 0xfffffe811f938420 pid 0.3 lowest kstack 0xfffffe80400032c0 May 14 12:42:17 slave /netbsd: panic: trap May 14 12:42:17 slave /netbsd: cpu0: Begin traceback... May 14 12:42:17 slave /netbsd: vpanic() at netbsd:vpanic+0x13c May 14 12:42:17 slave /netbsd: snprintf() at netbsd:snprintf May 14 12:42:17 slave /netbsd: startlwp() at netbsd:startlwp May 14 12:42:17 slave /netbsd: alltraps() at netbsd:alltraps+0x96 May 14 12:42:17 slave /netbsd: cbq_enqueue() at netbsd:cbq_enqueue+0x8f May 14 12:42:17 slave /netbsd: ifq_enqueue2() at netbsd:ifq_enqueue2+0xeb May 14 12:42:17 slave /netbsd: sppp_output() at netbsd:sppp_output+0x1d8 May 14 12:42:17 slave /netbsd: nd6_output() at netbsd:nd6_output+0x11d May 14 12:42:17 slave /netbsd: ipf_fastroute() at netbsd:ipf_fastroute+0x82b May 14 12:42:17 slave /netbsd: ipf_send_ip() at netbsd:ipf_send_ip+0x13c May 14 12:42:17 slave /netbsd: ipf_check() at netbsd:ipf_check+0xe7f May 14 12:42:17 slave /netbsd: pfil_run_hooks() at netbsd:pfil_run_hooks+0xc4 May 14 12:42:17 slave /netbsd: ip6_input() at netbsd:ip6_input+0x2a5 May 14 12:42:17 slave /netbsd: ip6intr() at netbsd:ip6intr+0x45 May 14 12:42:17 slave /netbsd: softint_dispatch() at netbsd:softint_dispatch+0x79 May 14 12:42:17 slave /netbsd: DDB lost frame for netbsd:Xsoftintr+0x4f, trying 0xfffffe8040005ff0 May 14 12:42:17 slave /netbsd: Xsoftintr() at netbsd:Xsoftintr+0x4f May 14 12:42:17 slave /netbsd: --- interrupt --- May 14 12:42:17 slave /netbsd: 0: May 14 12:42:17 slave /netbsd: cpu0: End traceback... afaict, cbq_enqueue+0x8f puts it around about the m_tag_find call. I've also had a panic or two in cbq_dequeue: Mar 15 18:23:48 slave /netbsd: panic: _rmc_wrr_dequeue_next Mar 15 18:23:48 slave /netbsd: cpu0: Begin traceback... Mar 15 18:23:48 slave /netbsd: vpanic() at netbsd:vpanic+0x13c Mar 15 18:23:48 slave /netbsd: snprintf() at netbsd:snprintf Mar 15 18:23:48 slave /netbsd: rmc_dequeue_next() at netbsd:rmc_dequeue_next+0x4fd Mar 15 18:23:48 slave /netbsd: cbq_dequeue() at netbsd:cbq_dequeue+0x27 Mar 15 18:23:48 slave /netbsd: tbr_dequeue() at netbsd:tbr_dequeue+0x72 Mar 15 18:23:48 slave /netbsd: sppp_dequeue() at netbsd:sppp_dequeue+0x111 Mar 15 18:23:48 slave /netbsd: pppoe_start() at netbsd:pppoe_start+0x30 Mar 15 18:23:48 slave /netbsd: tbr_timeout() at netbsd:tbr_timeout+0x4e Mar 15 18:23:48 slave /netbsd: callout_softclock() at netbsd:callout_softclock+0x248 Mar 15 18:23:48 slave /netbsd: softint_dispatch() at netbsd:softint_dispatch+0x79 Mar 15 18:23:48 slave /netbsd: DDB lost frame for netbsd:Xsoftintr+0x4f, trying 0xfffffe804 000bff0 Mar 15 18:23:48 slave /netbsd: Xsoftintr() at netbsd:Xsoftintr+0x4f -- Paul Ripke "Great minds discuss ideas, average minds discuss events, small minds discuss people." -- Disputed: Often attributed to Eleanor Roosevelt. 1948.
