[Bug 193986] New: [lor][network] multicast related

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193986

            Bug ID: 193986
           Summary: [lor][network] multicast related
           Product: Base System
           Version: 11.0-CURRENT
          Hardware: amd64
                OS: Any
            Status: Needs Triage
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: kwm at FreeBSD.org

adrian asked met to report the following lor's which according to him are
multicast related.

FreeBSD 11.0-CURRENT #2 r272097M: Thu Sep 25 11:39:07 CEST 2014
    root at crashalot.rainbow-runner.nl:/usr/obj/usr/src/sys/GENERIC amd64
FreeBSD clang version 3.4.1 (tags/RELEASE_34/dot1-final 208032) 20140512


lock order reversal:
 1st 0xfffff8000ac0b990 if_addr_lock (if_addr_lock) @
/usr/src/sys/netinet/igmp.c:1716
 2nd 0xffffffff81a64ec0 ifnet_rw (ifnet_rw) @ /usr/src/sys/net/if.c:246
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe01e99da4b0
kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe01e99da560
witness_checkorder() at witness_checkorder+0xdc2/frame 0xfffffe01e99da5f0
__rw_rlock() at __rw_rlock+0x9a/frame 0xfffffe01e99da690
ifnet_byindex() at ifnet_byindex+0x22/frame 0xfffffe01e99da6b0
igmp_intr() at igmp_intr+0x1f/frame 0xfffffe01e99da730
netisr_dispatch_src() at netisr_dispatch_src+0x86/frame 0xfffffe01e99da7a0
igmp_v1v2_queue_report() at igmp_v1v2_queue_report+0x186/frame
0xfffffe01e99da7e0
igmp_fasttimo() at igmp_fasttimo+0x3ee/frame 0xfffffe01e99da8c0
pffasttimo() at pffasttimo+0x54/frame 0xfffffe01e99da8f0
softclock_call_cc() at softclock_call_cc+0x19c/frame 0xfffffe01e99da9d0
softclock() at softclock+0x47/frame 0xfffffe01e99da9f0
intr_event_execute_handlers() at intr_event_execute_handlers+0x93/frame
0xfffffe01e99daa30
ithread_loop() at ithread_loop+0xa6/frame 0xfffffe01e99daa70
fork_exit() at fork_exit+0x84/frame 0xfffffe01e99daab0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe01e99daab0
--- trap 0, rip = 0, rsp = 0xfffffe01e99dab70, rbp = 0 ---
lock order reversal:
 1st 0xfffff8000ac0b990 if_addr_lock (if_addr_lock) @
/usr/src/sys/netinet/igmp.c:1716
 2nd 0xfffffe00016e2048 ath0_tx_lock (ath0_tx_lock) @
/usr/src/sys/net80211/ieee80211_output.c:228
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe01e99da320
kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe01e99da3d0
witness_checkorder() at witness_checkorder+0xdc2/frame 0xfffffe01e99da460
__mtx_lock_flags() at __mtx_lock_flags+0xa8/frame 0xfffffe01e99da4b0
ieee80211_vap_pkt_send_dest() at ieee80211_vap_pkt_send_dest+0x1f0/frame
0xfffffe01e99da500
ieee80211_vap_transmit() at ieee80211_vap_transmit+0x317/frame
0xfffffe01e99da550
ether_output() at ether_output+0x5b1/frame 0xfffffe01e99da5c0
ip_output() at ip_output+0x114d/frame 0xfffffe01e99da6b0
igmp_intr() at igmp_intr+0x2fb/frame 0xfffffe01e99da730
netisr_dispatch_src() at netisr_dispatch_src+0x86/frame 0xfffffe01e99da7a0
igmp_v1v2_queue_report() at igmp_v1v2_queue_report+0x186/frame
0xfffffe01e99da7e0
igmp_fasttimo() at igmp_fasttimo+0x3ee/frame 0xfffffe01e99da8c0
pffasttimo() at pffasttimo+0x54/frame 0xfffffe01e99da8f0
softclock_call_cc() at softclock_call_cc+0x19c/frame 0xfffffe01e99da9d0
softclock() at softclock+0x47/frame 0xfffffe01e99da9f0
intr_event_execute_handlers() at intr_event_execute_handlers+0x93/frame
0xfffffe01e99daa30
ithread_loop() at ithread_loop+0xa6/frame 0xfffffe01e99daa70
fork_exit() at fork_exit+0x84/frame 0xfffffe01e99daab0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe01e99daab0
--- trap 0, rip = 0, rsp = 0xfffffe01e99dab70, rbp = 0 ---

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