Date: Sat, 28 Jan 2017 19:36:31 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 216554] LACP integer divide fault Message-ID: <bug-216554-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=216554 Bug ID: 216554 Summary: LACP integer divide fault Product: Base System Version: 11.0-STABLE Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: slw@zxy.spb.ru Fatal trap 18: integer divide fault while in kernel mode cpuid = 3; apic id = 06 instruction pointer = 0x20:0xffffffff81453230 stack pointer = 0x28:0xfffffe3e56f46480 frame pointer = 0x28:0xfffffe3e56f464a0 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 12 (swi4: clock (3)) trap number = 18 panic: integer divide fault cpuid = 3 KDB: stack backtrace: db_trace_self_wrapper() at 0xffffffff8032b3eb = db_trace_self_wrapper+0x2b/frame 0xfffffe3e56f460c0 vpanic() at 0xffffffff804e33a6 = vpanic+0x186/frame 0xfffffe3e56f46140 panic() at 0xffffffff804e3213 = panic+0x43/frame 0xfffffe3e56f461a0 trap_fatal() at 0xffffffff807b07c2 = trap_fatal+0x322/frame 0xfffffe3e56f461f0 trap() at 0xffffffff807b0475 = trap+0x6b5/frame 0xfffffe3e56f463b0 calltrap() at 0xffffffff807946b1 = calltrap+0x8/frame 0xfffffe3e56f463b0 --- trap 0x12, rip = 0xffffffff81453230, rsp = 0xfffffe3e56f46480, rbp = 0xfffffe3e56f464a0 --- lacp_select_tx_port() at 0xffffffff81453230 = lacp_select_tx_port+0x70/frame 0xfffffe3e56f464a0 lagg_lacp_start() at 0xffffffff814504ae = lagg_lacp_start+0xe/frame 0xfffffe3e56f464c0 lagg_transmit() at 0xffffffff8144e73f = lagg_transmit+0xbf/frame 0xfffffe3e56f46530 ether_output() at 0xffffffff805f30bc = ether_output+0x71c/frame 0xfffffe3e56f465d0 ip_output() at 0xffffffff80629935 = ip_output+0x1585/frame 0xfffffe3e56f46720 tcp_output() at 0xffffffff806b9e16 = tcp_output+0x1876/frame 0xfffffe3e56f468c0 tcp_timer_rexmt() at 0xffffffff806c572f = tcp_timer_rexmt+0x4df/frame 0xfffffe3e56f46900 softclock_call_cc() at 0xffffffff804fd1b6 = softclock_call_cc+0x156/frame 0xfffffe3e56f469b0 softclock() at 0xffffffff804fd754 = softclock+0x94/frame 0xfffffe3e56f469e0 intr_event_execute_handlers() at 0xffffffff8049d15f = intr_event_execute_handlers+0x20f/frame 0xfffffe3e56f46a20 ithread_loop() at 0xffffffff8049d766 = ithread_loop+0xc6/frame 0xfffffe3e56f46a70 fork_exit() at 0xffffffff80499e25 = fork_exit+0x85/frame 0xfffffe3e56f46ab0 fork_trampoline() at 0xffffffff80794bee = fork_trampoline+0xe/frame 0xfffffe3e56f46ab0 --- trap 0, rip = 0, rsp = 0, rbp = 0 --- (kgdb) info line *0xffffffff81453230 Line 848 of "/usr/src/sys/modules/if_lagg/../../net/ieee8023ad_lacp.c" starts at address 0xffffffff8145322e <lacp_select_tx_port+110> and ends at 0xffffffff81453233 <lacp_select_tx_port+115>. === Lacp configuration: cc0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=ec07bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWTSO,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6> ether 00:07:43:39:8c:00 nd6 options=9<PERFORMNUD,IFDISABLED> media: Ethernet 40Gbase-SR4 <full-duplex> status: active cc1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=ec07bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWTSO,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6> ether 00:07:43:39:8c:00 nd6 options=9<PERFORMNUD,IFDISABLED> media: Ethernet 40Gbase-SR4 <full-duplex> status: no carrier lagg0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=ec07bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWTSO,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6> ether 00:07:43:39:8c:00 inet 37.220.36.136 netmask 0xffffff00 broadcast 37.220.36.255 nd6 options=9<PERFORMNUD,IFDISABLED> media: Ethernet autoselect status: active groups: lagg laggproto lacp lagghash l2,l3,l4 laggport: cc0 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> laggport: cc1 flags=0<> ====== I mean last member of lagg0 gone between lines 838 and 848 (race condition at access pm->pm_count). -- You are receiving this mail because: You are the assignee for the bug.
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