9/STABLE Panic at netisr_dispatch_src w/ em(4) + PF
Nick Rogers
ncrogers at gmail.com
Tue May 13 00:24:10 UTC 2014
On Mon, May 12, 2014 at 5:16 PM, Jack Vogel <jfvogel at gmail.com> wrote:
> Nick,
>
> I'm very busy with some critical internal deadlines, I will look at this
> when I can
> come up for air, but please be patient.
Thank you.
>
> Jack
>
>
>
> On Mon, May 12, 2014 at 4:56 PM, Nick Rogers <ncrogers at gmail.com> wrote:
>>
>> On Fri, May 2, 2014 at 1:49 PM, Nick Rogers <ncrogers at gmail.com> wrote:
>> > Hello,
>> >
>> > I am hoping someone can help me debug a kernel panic I have been
>> > experiencing
>> > on one of my production systems. The system is a PF+ALTQ
>> > firewall/gateway with
>> > about 1k simultaneous devices behind it at any given time, pushing no
>> > more
>> > than 100Mb/s of traffic. I have obtained a crash dump and tried to debug
>> > it
>> > with kgdb, but am still at a loss.
>> >
>> > I have completely replaced the hardware to rule out issues with
>> > disk/memory/etc, and it appears to be a kernel issue, likely with e1000
>> > driver
>> > and/or PF.
>> >
>> > The panic seems to happen during times of heavier use, but the frequency
>> > is
>> > not very predictable (anywhere from a few times a day to a once a week),
>> > so I
>> > feel like its some kind of strange traffic pattern that I am unable to
>> > pinpoint.
>> >
>> > I am using a slightly custom kernel based on GENERIC, mainly to bring in
>> > ALTQ
>> > and some other options.
>> >
>> > It may be worth noting that I also have IGB_LEGACY_TX set for the e1000
>> > driver, although I do not believe that should affect em(4).
>> >
>> > Hoping someone can be of assistance in debugging this problem. I am
>> > willing to
>> > test patches and pull in the e1000 driver from HEAD or newer 9/STABLE if
>> > that
>> > is advisable. Unfortunately I cannot try 10-STABLE.
>> >
>> > Thanks,
>> >
>> > -Nick Rogers
>> >
>> >
>> > uname -v
>> > FreeBSD 9.2-STABLE #16 r264331M: Thu Apr 10 21:23:18 EDT 2014
>> > root at fbsd_91_amd64_builder.rgnets.com:/usr/obj/usr/src/sys/RGNETS
>> >
>> >
>> >
>> > Here is the kernel conf...
>> >
>> > ..............................................................................
>> > include GENERIC
>> >
>> > ident RGNETS
>> >
>> > makeoptions MODULES_OVERRIDE=""
>> >
>> > options DEVICE_POLLING
>> >
>> > device crypto
>> > device cryptodev
>> >
>> > options VLAN_ARRAY
>> >
>> > device amdtemp
>> >
>> > # PF
>> > device pf
>> > device pflog
>> > options ALTQ
>> > options ALTQ_CBQ # Class Bases Queuing (CBQ)
>> > options ALTQ_RED # Random Early Detection (RED)
>> > options ALTQ_RIO # RED In/Out
>> > options ALTQ_HFSC # Hierarchical Packet Scheduler (HFSC)
>> > options ALTQ_PRIQ # Priority Queuing (PRIQ)
>> > options ALTQ_NOPCC # Required for SMP build
>> >
>> > # PPPoE
>> > options NETGRAPH
>> > options NETGRAPH_ETHER
>> > options NETGRAPH_PPPOE
>> > options NETGRAPH_SOCKET
>> >
>> > # IPsec
>> > device enc
>> > options IPSEC
>> > options IPSEC_FILTERTUNNEL
>> > options IPSEC_NAT_T
>> >
>> > ..............................................................................
>> >
>> >
>> > The crash dump....
>> >
>> > ..............................................................................
>> >
>> > GNU gdb 6.1.1 [FreeBSD]
>> > Copyright 2004 Free Software Foundation, Inc.
>> > GDB is free software, covered by the GNU General Public License, and you
>> > are
>> > welcome to change it and/or distribute copies of it under certain
>> > conditions.
>> > Type "show copying" to see the conditions.
>> > There is absolutely no warranty for GDB. Type "show warranty" for
>> > details.
>> > This GDB was configured as "amd64-marcel-freebsd"...
>> >
>> > Unread portion of the kernel message buffer:
>> >
>> >
>> > Fatal trap 12: page fault while in kernel mode
>> > cpuid = 5; apic id = 05
>> > fault virtual address = 0x10
>> > fault code = supervisor read data, page not present
>> > instruction pointer = 0x20:0xffffffff8033d350
>> > stack pointer = 0x28:0xffffff83545384b0
>> > frame pointer = 0x28:0xffffff83545384c0
>> > 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 (irq262: em2:rx 0)
>> > trap number = 12
>> > panic: page fault
>> > cpuid = 5
>> > KDB: stack backtrace:
>> > #0 0xffffffff80956836 at kdb_backtrace+0x66
>> > #1 0xffffffff8091c40e at panic+0x1ce
>> > #2 0xffffffff80d31e70 at trap_fatal+0x290
>> > #3 0xffffffff80d321d1 at trap_pfault+0x211
>> > #4 0xffffffff80d327d3 at trap+0x363
>> > #5 0xffffffff80d1b9d3 at calltrap+0x8
>> > #6 0xffffffff8034872d at pf_test_rule+0x17ed
>> > #7 0xffffffff8034ba12 at pf_test+0x1032
>> > #8 0xffffffff8035112b at pf_check_in+0x2b
>> > #9 0xffffffff809e952e at pfil_run_hooks+0x9e
>> > #10 0xffffffff80a5286a at ip_input+0x2ea
>> > #11 0xffffffff809e8858 at netisr_dispatch_src+0x218
>> > #12 0xffffffff809df93d at ether_demux+0x14d
>> > #13 0xffffffff809dfc1e at ether_nh_input+0x1fe
>> > #14 0xffffffff809e8858 at netisr_dispatch_src+0x218
>> > #15 0xffffffff809df85f at ether_demux+0x6f
>> > #16 0xffffffff809dfc1e at ether_nh_input+0x1fe
>> > #17 0xffffffff809e8858 at netisr_dispatch_src+0x218
>> > Uptime: 17d7h20m59s
>> > Dumping 2932 out of 12256 MB: (CTRL-C to abort)
>> > ..1%..11%..21%..31%..41%..51%..61%..71%..81%..91%
>> >
>> > Reading symbols from /boot/kernel/aio.ko...Reading symbols from
>> > /boot/kernel/aio.ko.symbols...done.
>> > done.
>> > Loaded symbols for /boot/kernel/aio.ko
>> > Reading symbols from /boot/kernel/coretemp.ko...Reading symbols from
>> > /boot/kernel/coretemp.ko.symbols...done.
>> > done.
>> > Loaded symbols for /boot/kernel/coretemp.ko
>> > Reading symbols from /boot/kernel/cc_htcp.ko...Reading symbols from
>> > /boot/kernel/cc_htcp.ko.symbols...done.
>> > done.
>> > Loaded symbols for /boot/kernel/cc_htcp.ko
>> > #0 doadump (textdump=Variable "textdump" is not available.
>> > ) at pcpu.h:234
>> > 234 pcpu.h: No such file or directory.
>> > in pcpu.h
>> > (kgdb) list *0xffffffff8033d350
>> > 0xffffffff8033d350 is in pf_addrcpy
>> > (/usr/src/sys/contrib/pf/net/pf.c:512).
>> > 507 pf_addrcpy(struct pf_addr *dst, struct pf_addr *src, sa_family_t af)
>> > 508 {
>> > 509 switch (af) {
>> > 510 #ifdef INET
>> > 511 case AF_INET:
>> > 512 dst->addr32[0] = src->addr32[0];
>> > 513 break;
>> > 514 #endif /* INET */
>> > 515 case AF_INET6:
>> > 516 dst->addr32[0] = src->addr32[0];
>> > (kgdb) backtrace
>> > #0 doadump (textdump=Variable "textdump" is not available.
>> > ) at pcpu.h:234
>> > #1 0xffffffff8091bee6 in kern_reboot (howto=260) at
>> > /usr/src/sys/kern/kern_shutdown.c:454
>> > #2 0xffffffff8091c3e7 in panic (fmt=0x1 <Address 0x1 out of bounds>)
>> > at /usr/src/sys/kern/kern_shutdown.c:642
>> > #3 0xffffffff80d31e70 in trap_fatal (frame=0xc, eva=Variable "eva" is
>> > not available.
>> > ) at /usr/src/sys/amd64/amd64/trap.c:878
>> > #4 0xffffffff80d321d1 in trap_pfault (frame=0xffffff8354538400,
>> > usermode=0) at /usr/src/sys/amd64/amd64/trap.c:794
>> > #5 0xffffffff80d327d3 in trap (frame=0xffffff8354538400) at
>> > /usr/src/sys/amd64/amd64/trap.c:456
>> > #6 0xffffffff80d1b9d3 in calltrap () at
>> > /usr/src/sys/amd64/amd64/exception.S:232
>> > #7 0xffffffff8033d350 in pf_addrcpy (dst=0xfffffe010c6416b8,
>> > src=0x10, af=2 '\002') at /usr/src/sys/contrib/pf/net/pf.c:522
>> > #8 0xffffffff8034872d in pf_test_rule (rm=0xffffff8354538788,
>> > sm=0xffffff8354538780, direction=1, kif=0xfffffe0007d08100,
>> > m=0xfffffe0030555d00, off=20, h=0xfffffe0030bad00e,
>> > pd=0xffffff83545386c0, am=0xffffff8354538790,
>> > rsm=0xffffff8354538778, ifq=0x0, inp=0x0) at
>> > /usr/src/sys/contrib/pf/net/pf.c:3900
>> > #9 0xffffffff8034ba12 in pf_test (dir=1, ifp=Variable "ifp" is not
>> > available.
>> > ) at /usr/src/sys/contrib/pf/net/pf.c:6776
>> > #10 0xffffffff8035112b in pf_check_in (arg=Variable "arg" is not
>> > available.
>> > ) at /usr/src/sys/contrib/pf/net/pf_ioctl.c:4131
>> > #11 0xffffffff809e952e in pfil_run_hooks (ph=Variable "ph" is not
>> > available.
>> > ) at /usr/src/sys/net/pfil.c:82
>> > #12 0xffffffff80a5286a in ip_input (m=0xfffffe0030555d00) at
>> > /usr/src/sys/netinet/ip_input.c:510
>> > #13 0xffffffff809e8858 in netisr_dispatch_src (proto=1,
>> > source=Variable "source" is not available.
>> > ) at /usr/src/sys/net/netisr.c:1013
>> > #14 0xffffffff809df93d in ether_demux (ifp=0xfffffe0030239000,
>> > m=0xfffffe0030555d00) at /usr/src/sys/net/if_ethersubr.c:943
>> > #15 0xffffffff809dfc1e in ether_nh_input (m=Variable "m" is not
>> > available.
>> > ) at /usr/src/sys/net/if_ethersubr.c:762
>> > #16 0xffffffff809e8858 in netisr_dispatch_src (proto=9,
>> > source=Variable "source" is not available.
>> > ) at /usr/src/sys/net/netisr.c:1013
>> > #17 0xffffffff809df85f in ether_demux (ifp=0xfffffe0003f0c800,
>> > m=0xfffffe0030555d00) at /usr/src/sys/net/if_ethersubr.c:852
>> > #18 0xffffffff809dfc1e in ether_nh_input (m=Variable "m" is not
>> > available.
>> > ) at /usr/src/sys/net/if_ethersubr.c:762
>> > #19 0xffffffff809e8858 in netisr_dispatch_src (proto=9,
>> > source=Variable "source" is not available.
>> > ) at /usr/src/sys/net/netisr.c:1013
>> > #20 0xffffffff804ccb58 in em_rxeof (rxr=0xfffffe0007308200, count=-2,
>> > done=0x0) at /usr/src/sys/dev/e1000/if_em.c:4525
>> > #21 0xffffffff804cceb6 in em_msix_rx (arg=Variable "arg" is not
>> > available.
>> > ) at /usr/src/sys/dev/e1000/if_em.c:1593
>>
>> It seems like the panic is in the MSIX receive handler? I guess I will
>> try disabling MSIX for em.
>>
>> Jack, can you comment on this please?
>>
>>
>> > #22 0xffffffff808ecb1d in intr_event_execute_handlers (p=Variable "p"
>> > is not available.
>> > ) at /usr/src/sys/kern/kern_intr.c:1272
>> > #23 0xffffffff808ee30d in ithread_loop (arg=0xfffffe000730c300) at
>> > /usr/src/sys/kern/kern_intr.c:1285
>> > #24 0xffffffff808e951f in fork_exit (callout=0xffffffff808ee270
>> > <ithread_loop>, arg=0xfffffe000730c300, frame=0xffffff8354538c40) at
>> > /usr/src/sys/kern/kern_fork.c:996
>> > #25 0xffffffff80d1befe in fork_trampoline () at
>> > /usr/src/sys/amd64/amd64/exception.S:606
>> > #26 0x0000000000000000 in ?? ()
>> > #27 0x0000000000000000 in ?? ()
>> > #28 0x0000000000000001 in ?? ()
>> > #29 0x0000000000000000 in ?? ()
>> > #30 0x0000000000000000 in ?? ()
>> > #31 0x0000000000000000 in ?? ()
>> > #32 0x0000000000000000 in ?? ()
>> > #33 0x0000000000000000 in ?? ()
>> > #34 0x0000000000000000 in ?? ()
>> > #35 0x0000000000000000 in ?? ()
>> > #36 0x0000000000000000 in ?? ()
>> > #37 0x0000000000000000 in ?? ()
>> > #38 0x0000000000000000 in ?? ()
>> > #39 0x0000000000000000 in ?? ()
>> > #40 0x0000000000000000 in ?? ()
>> > #41 0x0000000000000000 in ?? ()
>> > #42 0x0000000000000000 in ?? ()
>> > #43 0x0000000000000000 in ?? ()
>> > #44 0x0000000000000000 in ?? ()
>> > #45 0x0000000000000000 in ?? ()
>> > #46 0x0000000000000000 in ?? ()
>> > #47 0x0000000000000000 in ?? ()
>> > #48 0x0000000000000000 in ?? ()
>> > ---Type <return> to continue, or q <return> to quit---
>> > #49 0x0000000000000000 in ?? ()
>> > #50 0x0000000000000000 in ?? ()
>> > #51 0xfffffe0007304920 in ?? ()
>> > #52 0xfffffe0003afd000 in ?? ()
>> > #53 0xfffffe0007304920 in ?? ()
>> > #54 0xffffff8354538b40 in ?? ()
>> > #55 0xffffff8354538ae8 in ?? ()
>> > #56 0xfffffe0003b00920 in ?? ()
>> > #57 0xffffffff80948646 in sched_switch (td=0xffffffff808ee270,
>> > newtd=0xfffffe000730c300, flags=Variable "flags" is not available.
>> > ) at /usr/src/sys/kern/sched_ule.c:1898
>> > Previous frame inner to this frame (corrupt stack?)
>> >
>> >
>> > ..............................................................................
>> >
>> >
>> >
>> > Relevant pciconf output...
>> >
>> > ..............................................................................
>> >
>> > em0 at pci0:1:0:0: class=0x020000 card=0x10d315d9 chip=0x10d38086 rev=0x00
>> > hdr=0x00
>> > vendor = 'Intel Corporation'
>> > device = '82574L Gigabit Network Connection'
>> > class = network
>> > subclass = ethernet
>> > cap 01[c8] = powerspec 2 supports D0 D3 current D0
>> > cap 05[d0] = MSI supports 1 message, 64 bit
>> > cap 10[e0] = PCI-Express 1 endpoint max data 128(256) link x1(x1)
>> > cap 11[a0] = MSI-X supports 5 messages in map 0x1c enabled
>> > ecap 0001[100] = AER 1 0 fatal 0 non-fatal 1 corrected
>> > em1 at pci0:2:0:0: class=0x020000 card=0x10d315d9 chip=0x10d38086 rev=0x00
>> > hdr=0x00
>> > vendor = 'Intel Corporation'
>> > device = '82574L Gigabit Network Connection'
>> > class = network
>> > subclass = ethernet
>> > cap 01[c8] = powerspec 2 supports D0 D3 current D0
>> > cap 05[d0] = MSI supports 1 message, 64 bit
>> > cap 10[e0] = PCI-Express 1 endpoint max data 128(256) link x1(x1)
>> > cap 11[a0] = MSI-X supports 5 messages in map 0x1c enabled
>> > ecap 0001[100] = AER 1 0 fatal 0 non-fatal 1 corrected
>> > em2 at pci0:7:0:0: class=0x020000 card=0x10d315d9 chip=0x10d38086 rev=0x00
>> > hdr=0x00
>> > vendor = 'Intel Corporation'
>> > device = '82574L Gigabit Network Connection'
>> > class = network
>> > subclass = ethernet
>> > cap 01[c8] = powerspec 2 supports D0 D3 current D0
>> > cap 05[d0] = MSI supports 1 message, 64 bit
>> > cap 10[e0] = PCI-Express 1 endpoint max data 128(256) link x1(x1)
>> > cap 11[a0] = MSI-X supports 5 messages in map 0x1c enabled
>> > ecap 0001[100] = AER 1 0 fatal 0 non-fatal 1 corrected
>> > em3 at pci0:8:0:0: class=0x020000 card=0x10d315d9 chip=0x10d38086 rev=0x00
>> > hdr=0x00
>> > vendor = 'Intel Corporation'
>> > device = '82574L Gigabit Network Connection'
>> > class = network
>> > subclass = ethernet
>> > cap 01[c8] = powerspec 2 supports D0 D3 current D0
>> > cap 05[d0] = MSI supports 1 message, 64 bit
>> > cap 10[e0] = PCI-Express 1 endpoint max data 128(256) link x1(x1)
>> > cap 11[a0] = MSI-X supports 5 messages in map 0x1c enabled
>> >
>> >
>> > ..............................................................................
>> >
>> >
>> > dev.em sysctl....
>> >
>> > ..............................................................................
>> >
>> > dev.em.0.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
>> > dev.em.0.%driver: em
>> > dev.em.0.%location: slot=0 function=0
>> > dev.em.0.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x15d9
>> > subdevice=0x10d3 class=0x020000
>> > dev.em.0.%parent: pci1
>> > dev.em.0.nvm: -1
>> > dev.em.0.debug: -1
>> > dev.em.0.fc: 3
>> > dev.em.0.rx_int_delay: 0
>> > dev.em.0.tx_int_delay: 66
>> > dev.em.0.rx_abs_int_delay: 66
>> > dev.em.0.tx_abs_int_delay: 66
>> > dev.em.0.itr: 488
>> > dev.em.0.rx_processing_limit: -1
>> > dev.em.0.eee_control: 1
>> > dev.em.0.link_irq: 2
>> > dev.em.0.mbuf_alloc_fail: 0
>> > dev.em.0.cluster_alloc_fail: 0
>> > dev.em.0.dropped: 0
>> > dev.em.0.tx_dma_fail: 0
>> > dev.em.0.rx_overruns: 0
>> > dev.em.0.watchdog_timeouts: 0
>> > dev.em.0.device_control: 1477444168
>> > dev.em.0.rx_control: 67141634
>> > dev.em.0.fc_high_water: 18432
>> > dev.em.0.fc_low_water: 16932
>> > dev.em.0.queue0.txd_head: 3265
>> > dev.em.0.queue0.txd_tail: 3265
>> > dev.em.0.queue0.tx_irq: 81153071
>> > dev.em.0.queue0.no_desc_avail: 0
>> > dev.em.0.queue0.rxd_head: 388
>> > dev.em.0.queue0.rxd_tail: 387
>> > dev.em.0.queue0.rx_irq: 79015024
>> > dev.em.0.mac_stats.excess_coll: 0
>> > dev.em.0.mac_stats.single_coll: 0
>> > dev.em.0.mac_stats.multiple_coll: 0
>> > dev.em.0.mac_stats.late_coll: 0
>> > dev.em.0.mac_stats.collision_count: 0
>> > dev.em.0.mac_stats.symbol_errors: 0
>> > dev.em.0.mac_stats.sequence_errors: 0
>> > dev.em.0.mac_stats.defer_count: 0
>> > dev.em.0.mac_stats.missed_packets: 0
>> > dev.em.0.mac_stats.recv_no_buff: 0
>> > dev.em.0.mac_stats.recv_undersize: 0
>> > dev.em.0.mac_stats.recv_fragmented: 0
>> > dev.em.0.mac_stats.recv_oversize: 0
>> > dev.em.0.mac_stats.recv_jabber: 0
>> > dev.em.0.mac_stats.recv_errs: 0
>> > dev.em.0.mac_stats.crc_errs: 0
>> > dev.em.0.mac_stats.alignment_errs: 0
>> > dev.em.0.mac_stats.coll_ext_errs: 0
>> > dev.em.0.mac_stats.xon_recvd: 6
>> > dev.em.0.mac_stats.xon_txd: 0
>> > dev.em.0.mac_stats.xoff_recvd: 6
>> > dev.em.0.mac_stats.xoff_txd: 0
>> > dev.em.0.mac_stats.total_pkts_recvd: 122072630
>> > dev.em.0.mac_stats.good_pkts_recvd: 122072618
>> > dev.em.0.mac_stats.bcast_pkts_recvd: 257
>> > dev.em.0.mac_stats.mcast_pkts_recvd: 0
>> > dev.em.0.mac_stats.rx_frames_64: 8634
>> > dev.em.0.mac_stats.rx_frames_65_127: 67656673
>> > dev.em.0.mac_stats.rx_frames_128_255: 714152
>> > dev.em.0.mac_stats.rx_frames_256_511: 609615
>> > dev.em.0.mac_stats.rx_frames_512_1023: 8646536
>> > dev.em.0.mac_stats.rx_frames_1024_1522: 44437008
>> > dev.em.0.mac_stats.good_octets_recvd: 82940411216
>> > dev.em.0.mac_stats.good_octets_txd: 25718335997
>> > dev.em.0.mac_stats.total_pkts_txd: 99833592
>> > dev.em.0.mac_stats.good_pkts_txd: 99833592
>> > dev.em.0.mac_stats.bcast_pkts_txd: 13
>> > dev.em.0.mac_stats.mcast_pkts_txd: 0
>> > dev.em.0.mac_stats.tx_frames_64: 2193
>> > dev.em.0.mac_stats.tx_frames_65_127: 29089783
>> > dev.em.0.mac_stats.tx_frames_128_255: 54412030
>> > dev.em.0.mac_stats.tx_frames_256_511: 9565246
>> > dev.em.0.mac_stats.tx_frames_512_1023: 1080398
>> > dev.em.0.mac_stats.tx_frames_1024_1522: 5683942
>> > dev.em.0.mac_stats.tso_txd: 1468623
>> > dev.em.0.mac_stats.tso_ctx_fail: 0
>> > dev.em.0.interrupts.asserts: 2
>> > dev.em.0.interrupts.rx_pkt_timer: 0
>> > dev.em.0.interrupts.rx_abs_timer: 0
>> > dev.em.0.interrupts.tx_pkt_timer: 0
>> > dev.em.0.interrupts.tx_abs_timer: 0
>> > dev.em.0.interrupts.tx_queue_empty: 0
>> > dev.em.0.interrupts.tx_queue_min_thresh: 0
>> > dev.em.0.interrupts.rx_desc_min_thresh: 0
>> > dev.em.0.interrupts.rx_overrun: 0
>> > dev.em.1.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
>> > dev.em.1.%driver: em
>> > dev.em.1.%location: slot=0 function=0
>> > dev.em.1.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x15d9
>> > subdevice=0x10d3 class=0x020000
>> > dev.em.1.%parent: pci2
>> > dev.em.1.nvm: -1
>> > dev.em.1.debug: -1
>> > dev.em.1.fc: 3
>> > dev.em.1.rx_int_delay: 0
>> > dev.em.1.tx_int_delay: 66
>> > dev.em.1.rx_abs_int_delay: 66
>> > dev.em.1.tx_abs_int_delay: 66
>> > dev.em.1.itr: 488
>> > dev.em.1.rx_processing_limit: -1
>> > dev.em.1.eee_control: 1
>> > dev.em.1.link_irq: 2
>> > dev.em.1.mbuf_alloc_fail: 0
>> > dev.em.1.cluster_alloc_fail: 0
>> > dev.em.1.dropped: 0
>> > dev.em.1.tx_dma_fail: 1
>> > dev.em.1.rx_overruns: 0
>> > dev.em.1.watchdog_timeouts: 0
>> > dev.em.1.device_control: 1477444168
>> > dev.em.1.rx_control: 67141634
>> > dev.em.1.fc_high_water: 18432
>> > dev.em.1.fc_low_water: 16932
>> > dev.em.1.queue0.txd_head: 2451
>> > dev.em.1.queue0.txd_tail: 2453
>> > dev.em.1.queue0.tx_irq: 143904807
>> > dev.em.1.queue0.no_desc_avail: 0
>> > dev.em.1.queue0.rxd_head: 342
>> > dev.em.1.queue0.rxd_tail: 341
>> > dev.em.1.queue0.rx_irq: 159303310
>> > dev.em.1.mac_stats.excess_coll: 0
>> > dev.em.1.mac_stats.single_coll: 0
>> > dev.em.1.mac_stats.multiple_coll: 0
>> > dev.em.1.mac_stats.late_coll: 0
>> > dev.em.1.mac_stats.collision_count: 0
>> > dev.em.1.mac_stats.symbol_errors: 0
>> > dev.em.1.mac_stats.sequence_errors: 0
>> > dev.em.1.mac_stats.defer_count: 0
>> > dev.em.1.mac_stats.missed_packets: 0
>> > dev.em.1.mac_stats.recv_no_buff: 0
>> > dev.em.1.mac_stats.recv_undersize: 0
>> > dev.em.1.mac_stats.recv_fragmented: 0
>> > dev.em.1.mac_stats.recv_oversize: 0
>> > dev.em.1.mac_stats.recv_jabber: 0
>> > dev.em.1.mac_stats.recv_errs: 0
>> > dev.em.1.mac_stats.crc_errs: 0
>> > dev.em.1.mac_stats.alignment_errs: 0
>> > dev.em.1.mac_stats.coll_ext_errs: 0
>> > dev.em.1.mac_stats.xon_recvd: 1
>> > dev.em.1.mac_stats.xon_txd: 0
>> > dev.em.1.mac_stats.xoff_recvd: 1
>> > dev.em.1.mac_stats.xoff_txd: 0
>> > dev.em.1.mac_stats.total_pkts_recvd: 331901758
>> > dev.em.1.mac_stats.good_pkts_recvd: 331901756
>> > dev.em.1.mac_stats.bcast_pkts_recvd: 13467
>> > dev.em.1.mac_stats.mcast_pkts_recvd: 0
>> > dev.em.1.mac_stats.rx_frames_64: 13905035
>> > dev.em.1.mac_stats.rx_frames_65_127: 22315178
>> > dev.em.1.mac_stats.rx_frames_128_255: 8343368
>> > dev.em.1.mac_stats.rx_frames_256_511: 8602323
>> > dev.em.1.mac_stats.rx_frames_512_1023: 8170288
>> > dev.em.1.mac_stats.rx_frames_1024_1522: 270565564
>> > dev.em.1.mac_stats.good_octets_recvd: 420794715670
>> > dev.em.1.mac_stats.good_octets_txd: 45361473880
>> > dev.em.1.mac_stats.total_pkts_txd: 217852588
>> > dev.em.1.mac_stats.good_pkts_txd: 217852588
>> > dev.em.1.mac_stats.bcast_pkts_txd: 6
>> > dev.em.1.mac_stats.mcast_pkts_txd: 0
>> > dev.em.1.mac_stats.tx_frames_64: 64102191
>> > dev.em.1.mac_stats.tx_frames_65_127: 120705475
>> > dev.em.1.mac_stats.tx_frames_128_255: 6009336
>> > dev.em.1.mac_stats.tx_frames_256_511: 4593595
>> > dev.em.1.mac_stats.tx_frames_512_1023: 4295623
>> > dev.em.1.mac_stats.tx_frames_1024_1522: 18146368
>> > dev.em.1.mac_stats.tso_txd: 291134
>> > dev.em.1.mac_stats.tso_ctx_fail: 0
>> > dev.em.1.interrupts.asserts: 2
>> > dev.em.1.interrupts.rx_pkt_timer: 0
>> > dev.em.1.interrupts.rx_abs_timer: 0
>> > dev.em.1.interrupts.tx_pkt_timer: 0
>> > dev.em.1.interrupts.tx_abs_timer: 0
>> > dev.em.1.interrupts.tx_queue_empty: 0
>> > dev.em.1.interrupts.tx_queue_min_thresh: 0
>> > dev.em.1.interrupts.rx_desc_min_thresh: 0
>> > dev.em.1.interrupts.rx_overrun: 0
>> > dev.em.2.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
>> > dev.em.2.%driver: em
>> > dev.em.2.%location: slot=0 function=0
>> > dev.em.2.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x15d9
>> > subdevice=0x10d3 class=0x020000
>> > dev.em.2.%parent: pci7
>> > dev.em.2.nvm: -1
>> > dev.em.2.debug: -1
>> > dev.em.2.fc: 3
>> > dev.em.2.rx_int_delay: 0
>> > dev.em.2.tx_int_delay: 66
>> > dev.em.2.rx_abs_int_delay: 66
>> > dev.em.2.tx_abs_int_delay: 66
>> > dev.em.2.itr: 488
>> > dev.em.2.rx_processing_limit: -1
>> > dev.em.2.eee_control: 1
>> > dev.em.2.link_irq: 1
>> > dev.em.2.mbuf_alloc_fail: 0
>> > dev.em.2.cluster_alloc_fail: 0
>> > dev.em.2.dropped: 0
>> > dev.em.2.tx_dma_fail: 6823
>> > dev.em.2.rx_overruns: 0
>> > dev.em.2.watchdog_timeouts: 0
>> > dev.em.2.device_control: 1477444168
>> > dev.em.2.rx_control: 67141634
>> > dev.em.2.fc_high_water: 18432
>> > dev.em.2.fc_low_water: 16932
>> > dev.em.2.queue0.txd_head: 3977
>> > dev.em.2.queue0.txd_tail: 3977
>> > dev.em.2.queue0.tx_irq: 220950699
>> > dev.em.2.queue0.no_desc_avail: 0
>> > dev.em.2.queue0.rxd_head: 83
>> > dev.em.2.queue0.rxd_tail: 82
>> > dev.em.2.queue0.rx_irq: 125920607
>> > dev.em.2.mac_stats.excess_coll: 0
>> > dev.em.2.mac_stats.single_coll: 0
>> > dev.em.2.mac_stats.multiple_coll: 0
>> > dev.em.2.mac_stats.late_coll: 0
>> > dev.em.2.mac_stats.collision_count: 0
>> > dev.em.2.mac_stats.symbol_errors: 0
>> > dev.em.2.mac_stats.sequence_errors: 0
>> > dev.em.2.mac_stats.defer_count: 0
>> > dev.em.2.mac_stats.missed_packets: 0
>> > dev.em.2.mac_stats.recv_no_buff: 0
>> > dev.em.2.mac_stats.recv_undersize: 0
>> > dev.em.2.mac_stats.recv_fragmented: 0
>> > dev.em.2.mac_stats.recv_oversize: 0
>> > dev.em.2.mac_stats.recv_jabber: 0
>> > dev.em.2.mac_stats.recv_errs: 0
>> > dev.em.2.mac_stats.crc_errs: 0
>> > dev.em.2.mac_stats.alignment_errs: 0
>> > dev.em.2.mac_stats.coll_ext_errs: 0
>> > dev.em.2.mac_stats.xon_recvd: 14123
>> > dev.em.2.mac_stats.xon_txd: 1
>> > dev.em.2.mac_stats.xoff_recvd: 14127
>> > dev.em.2.mac_stats.xoff_txd: 1
>> > dev.em.2.mac_stats.total_pkts_recvd: 229919303
>> > dev.em.2.mac_stats.good_pkts_recvd: 229891053
>> > dev.em.2.mac_stats.bcast_pkts_recvd: 909450
>> > dev.em.2.mac_stats.mcast_pkts_recvd: 19452
>> > dev.em.2.mac_stats.rx_frames_64: 1477808
>> > dev.em.2.mac_stats.rx_frames_65_127: 195114744
>> > dev.em.2.mac_stats.rx_frames_128_255: 6579690
>> > dev.em.2.mac_stats.rx_frames_256_511: 5137387
>> > dev.em.2.mac_stats.rx_frames_512_1023: 4223090
>> > dev.em.2.mac_stats.rx_frames_1024_1522: 17358334
>> > dev.em.2.mac_stats.good_octets_recvd: 46129102134
>> > dev.em.2.mac_stats.good_octets_txd: 419293159496
>> > dev.em.2.mac_stats.total_pkts_txd: 332661584
>> > dev.em.2.mac_stats.good_pkts_txd: 332661582
>> > dev.em.2.mac_stats.bcast_pkts_txd: 48506
>> > dev.em.2.mac_stats.mcast_pkts_txd: 78
>> > dev.em.2.mac_stats.tx_frames_64: 14598198
>> > dev.em.2.mac_stats.tx_frames_65_127: 22287108
>> > dev.em.2.mac_stats.tx_frames_128_255: 8897511
>> > dev.em.2.mac_stats.tx_frames_256_511: 9623000
>> > dev.em.2.mac_stats.tx_frames_512_1023: 8325033
>> > dev.em.2.mac_stats.tx_frames_1024_1522: 268930732
>> > dev.em.2.mac_stats.tso_txd: 24357891
>> > dev.em.2.mac_stats.tso_ctx_fail: 0
>> > dev.em.2.interrupts.asserts: 2
>> > dev.em.2.interrupts.rx_pkt_timer: 0
>> > dev.em.2.interrupts.rx_abs_timer: 0
>> > dev.em.2.interrupts.tx_pkt_timer: 0
>> > dev.em.2.interrupts.tx_abs_timer: 0
>> > dev.em.2.interrupts.tx_queue_empty: 0
>> > dev.em.2.interrupts.tx_queue_min_thresh: 0
>> > dev.em.2.interrupts.rx_desc_min_thresh: 0
>> > dev.em.2.interrupts.rx_overrun: 0
>> > dev.em.3.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
>> > dev.em.3.%driver: em
>> > dev.em.3.%location: slot=0 function=0
>> > dev.em.3.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x15d9
>> > subdevice=0x10d3 class=0x020000
>> > dev.em.3.%parent: pci8
>> > dev.em.3.nvm: -1
>> > dev.em.3.debug: -1
>> > dev.em.3.fc: 3
>> > dev.em.3.rx_int_delay: 0
>> > dev.em.3.tx_int_delay: 66
>> > dev.em.3.rx_abs_int_delay: 66
>> > dev.em.3.tx_abs_int_delay: 66
>> > dev.em.3.itr: 488
>> > dev.em.3.rx_processing_limit: -1
>> > dev.em.3.eee_control: 1
>> > dev.em.3.link_irq: 0
>> > dev.em.3.mbuf_alloc_fail: 0
>> > dev.em.3.cluster_alloc_fail: 0
>> > dev.em.3.dropped: 0
>> > dev.em.3.tx_dma_fail: 0
>> > dev.em.3.rx_overruns: 0
>> > dev.em.3.watchdog_timeouts: 0
>> > dev.em.3.device_control: 1074790984
>> > dev.em.3.rx_control: 67141634
>> > dev.em.3.fc_high_water: 18432
>> > dev.em.3.fc_low_water: 16932
>> > dev.em.3.queue0.txd_head: 0
>> > dev.em.3.queue0.txd_tail: 0
>> > dev.em.3.queue0.tx_irq: 0
>> > dev.em.3.queue0.no_desc_avail: 0
>> > dev.em.3.queue0.rxd_head: 0
>> > dev.em.3.queue0.rxd_tail: 4095
>> > dev.em.3.queue0.rx_irq: 0
>> > dev.em.3.mac_stats.excess_coll: 0
>> > dev.em.3.mac_stats.single_coll: 0
>> > dev.em.3.mac_stats.multiple_coll: 0
>> > dev.em.3.mac_stats.late_coll: 0
>> > dev.em.3.mac_stats.collision_count: 0
>> > dev.em.3.mac_stats.symbol_errors: 0
>> > dev.em.3.mac_stats.sequence_errors: 0
>> > dev.em.3.mac_stats.defer_count: 0
>> > dev.em.3.mac_stats.missed_packets: 0
>> > dev.em.3.mac_stats.recv_no_buff: 0
>> > dev.em.3.mac_stats.recv_undersize: 0
>> > dev.em.3.mac_stats.recv_fragmented: 0
>> > dev.em.3.mac_stats.recv_oversize: 0
>> > dev.em.3.mac_stats.recv_jabber: 0
>> > dev.em.3.mac_stats.recv_errs: 0
>> > dev.em.3.mac_stats.crc_errs: 0
>> > dev.em.3.mac_stats.alignment_errs: 0
>> > dev.em.3.mac_stats.coll_ext_errs: 0
>> > dev.em.3.mac_stats.xon_recvd: 0
>> > dev.em.3.mac_stats.xon_txd: 0
>> > dev.em.3.mac_stats.xoff_recvd: 0
>> > dev.em.3.mac_stats.xoff_txd: 0
>> > dev.em.3.mac_stats.total_pkts_recvd: 0
>> > dev.em.3.mac_stats.good_pkts_recvd: 0
>> > dev.em.3.mac_stats.bcast_pkts_recvd: 0
>> > dev.em.3.mac_stats.mcast_pkts_recvd: 0
>> > dev.em.3.mac_stats.rx_frames_64: 0
>> > dev.em.3.mac_stats.rx_frames_65_127: 0
>> > dev.em.3.mac_stats.rx_frames_128_255: 0
>> > dev.em.3.mac_stats.rx_frames_256_511: 0
>> > dev.em.3.mac_stats.rx_frames_512_1023: 0
>> > dev.em.3.mac_stats.rx_frames_1024_1522: 0
>> > dev.em.3.mac_stats.good_octets_recvd: 0
>> > dev.em.3.mac_stats.good_octets_txd: 0
>> > dev.em.3.mac_stats.total_pkts_txd: 0
>> > dev.em.3.mac_stats.good_pkts_txd: 0
>> > dev.em.3.mac_stats.bcast_pkts_txd: 0
>> > dev.em.3.mac_stats.mcast_pkts_txd: 0
>> > dev.em.3.mac_stats.tx_frames_64: 0
>> > dev.em.3.mac_stats.tx_frames_65_127: 0
>> > dev.em.3.mac_stats.tx_frames_128_255: 0
>> > dev.em.3.mac_stats.tx_frames_256_511: 0
>> > dev.em.3.mac_stats.tx_frames_512_1023: 0
>> > dev.em.3.mac_stats.tx_frames_1024_1522: 0
>> > dev.em.3.mac_stats.tso_txd: 0
>> > dev.em.3.mac_stats.tso_ctx_fail: 0
>> > dev.em.3.interrupts.asserts: 0
>> > dev.em.3.interrupts.rx_pkt_timer: 0
>> > dev.em.3.interrupts.rx_abs_timer: 0
>> > dev.em.3.interrupts.tx_pkt_timer: 0
>> > dev.em.3.interrupts.tx_abs_timer: 0
>> > dev.em.3.interrupts.tx_queue_empty: 0
>> > dev.em.3.interrupts.tx_queue_min_thresh: 0
>> > dev.em.3.interrupts.rx_desc_min_thresh: 0
>> > dev.em.3.interrupts.rx_overrun: 0
>> >
>> >
>> > ..............................................................................
>
>
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