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Date:      Mon, 24 Oct 2016 19:53:17 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-i386@FreeBSD.org
Subject:   [Bug 213751] bfe(4) link state goes down und up when big transfers start over socket to geom volume
Message-ID:  <bug-213751-10@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D213751

            Bug ID: 213751
           Summary: bfe(4) link state goes down und up when big transfers
                    start over socket to geom volume
           Product: Base System
           Version: 11.0-STABLE
          Hardware: i386
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: bin
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: 1983-01-06@gmx.net
                CC: freebsd-i386@FreeBSD.org
                CC: freebsd-i386@FreeBSD.org

My system:
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Copyright (c) 1992-2016 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 11.0-STABLE #1 r307823: Mon Oct 24 09:09:51 CEST 2016
    mosipov@bsd1home:/usr/obj/usr/src/sys/BSD1HOME i386
FreeBSD clang version 3.8.0 (tags/RELEASE_380/final 262564) (based on LLVM
3.8.0)
VT(vga): resolution 640x480
CPU: Intel(R) Pentium(R) 4 CPU 2.40GHz (2405.51-MHz 686-class CPU)
  Origin=3D"GenuineIntel"  Id=3D0xf27  Family=3D0xf  Model=3D0x2  Stepping=
=3D7
=20
Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,=
MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=3D0x4400<CNXT-ID,xTPR>
real memory  =3D 2147483648 (2048 MB)
avail memory =3D 2076766208 (1980 MB)
Event timer "LAPIC" quality 400
ACPI APIC Table: <ASUS   P4PE    >
random: unblocking device.
ioapic0 <Version 2.0> irqs 0-23 on motherboard
random: entropy device external interface
kbd1 at kbdmux0
module_register_init: MOD_LOAD (vesa, 0x8129c9c0, 0) error 19
nexus0
vtvga0: <VT VGA driver> on motherboard
cryptosoft0: <software crypto> on motherboard
acpi0: <ASUS P4PE> on motherboard
acpi0: Overriding SCI from IRQ 9 to IRQ 22
acpi0: Power Button (fixed)
cpu0: <ACPI CPU> on acpi0
attimer0: <AT timer> port 0x40-0x43 irq 0 on acpi0
Timecounter "i8254" frequency 1193182 Hz quality 0
Event timer "i8254" frequency 1193182 Hz quality 100
atrtc0: <AT realtime clock> port 0x70-0x73 irq 8 on acpi0
Event timer "RTC" frequency 32768 Hz quality 0
Timecounter "ACPI-fast" frequency 3579545 Hz quality 900
acpi_timer0: <24-bit timer at 3.579545MHz> port 0xe408-0xe40b on acpi0
acpi_button0: <Power Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
agp0: <Intel 82845G host to AGP bridge> on hostb0
pcib1: <ACPI PCI-PCI bridge> at device 1.0 on pci0
pci1: <ACPI PCI bus> on pcib1
vgapci0: <VGA-compatible display> mem
0xde000000-0xdeffffff,0xe0000000-0xefffffff,0xdd000000-0xddffffff irq 16 at
device 0.0 on pci1
vgapci0: Boot video device
uhci0: <Intel 82801DB (ICH4) USB controller USB-A> port 0xd800-0xd81f irq 1=
6 at
device 29.0 on pci0
uhci0: LegSup =3D 0x2f00
usbus0 on uhci0
uhci1: <Intel 82801DB (ICH4) USB controller USB-B> port 0xd400-0xd41f irq 1=
9 at
device 29.1 on pci0
uhci1: LegSup =3D 0x2f00
usbus1 on uhci1
uhci2: <Intel 82801DB (ICH4) USB controller USB-C> port 0xd000-0xd01f irq 1=
8 at
device 29.2 on pci0
uhci2: LegSup =3D 0x2f00
usbus2 on uhci2
ehci0: <Intel 82801DB/L/M (ICH4) USB 2.0 controller> mem 0xdc800000-0xdc800=
3ff
at device 29.7 on pci0
usbus3: EHCI version 1.0
usbus3 on ehci0
pcib2: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci2: <ACPI PCI bus> on pcib2
bfe0: <Broadcom BCM4401 Fast Ethernet> mem 0xdc000000-0xdc001fff at device =
5.0
on pci2
miibus0: <MII bus> on bfe0
bmtphy0: <BCM4401 10/100 media interface> PHY 1 on miibus0
bmtphy0:  none, 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
bfe0: Ethernet address: 00:0c:6e:17:d3:5c
rl0: <RealTek 8139 10/100BaseTX> port 0xb800-0xb8ff mem 0xdb800000-0xdb8000=
ff
at device 11.0 on pci2
miibus1: <MII bus> on rl0
rlphy0: <RealTek internal media interface> PHY 0 on miibus1
rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
rl0: Ethernet address: 00:1e:2a:c1:b7:90
atapci0: <HighPoint HPT370 UDMA100 controller> port
0xb400-0xb407,0xb000-0xb003,0xa800-0xa807,0xa400-0xa403,0xa000-0xa0ff irq 2=
1 at
device 13.0 on pci2
ata2: <ATA channel> at channel 0 on atapci0
ata3: <ATA channel> at channel 1 on atapci0
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci1: <Intel ICH4 UDMA100 controller> port
0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xf000-0xf00f irq 18 at device 31.1 on =
pci0
ata0: <ATA channel> at channel 0 on atapci1
ata1: <ATA channel> at channel 1 on atapci1
pmtimer0 on isa0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
fdc0: No FDOUT register!
ppc0: parallel port not found.
fuse-freebsd: version 0.4.4, FUSE ABI 7.8
Timecounters tick every 1.000 msec
nvme cam probe device init
usbus0: 12Mbps Full Speed USB v1.0
usbus1: 12Mbps Full Speed USB v1.0
usbus2: 12Mbps Full Speed USB v1.0
usbus3: 480Mbps High Speed USB v2.0
ugen0.1: <Intel> at usbus0
uhub0: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus0
ugen1.1: <Intel> at usbus1
uhub1: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus1
ugen2.1: <Intel> at usbus2
uhub2: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus2
ugen3.1: <Intel> at usbus3
uhub3: <Intel EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus3
cd0 at ata1 bus 0 scbus3 target 0 lun 0
cd0: <_NEC DVD_RW ND-3500AG 2.1B> Removable CD-ROM SCSI device
cd0: 33.300MB/s transfers (UDMA2, ATAPI 12bytes, PIO 65534bytes)
cd0: Attempt to query device size failed: NOT READY, Medium not present
ada0 at ata2 bus 0 scbus0 target 0 lun 0
ada0: <WDC WD2000JB-00GVA0 08.02D08> ATA-6 device
ada0: Serial Number WD-WCAL82220375
ada0: 100.000MB/s transfers (UDMA5, PIO 8192bytes)
ada0: 190782MB (390721968 512 byte sectors)
ada1 at ata2 bus 0 scbus0 target 1 lun 0
ada1: <WDC WD2000JB-00FUA0 15.05R15> ATA-6 device
ada1: Serial Number WD-WMAEP3043891
ada1: 100.000MB/s transfers (UDMA5, PIO 8192bytes)
ada1: 190782MB (390721968 512 byte sectors)
ada2 at ata3 bus 0 scbus1 target 0 lun 0
ada2: <WDC WD2000JB-00EVA0 15.05R15> ATA-6 device
ada2: Serial Number WD-WMAEH2583910
ada2: 100.000MB/s transfers (UDMA5, PIO 8192bytes)
ada2: 190782MB (390721968 512 byte sectors)
ada3 at ata0 bus 0 scbus2 target 0 lun 0
ada3: <ST380020A 3.39> ATA-6 device
ada3: Serial Number 5GCMFD8T
ada3: 100.000MB/s transfers (UDMA5, PIO 8192bytes)
ada3: 76319MB (156301488 512 byte sectors)
taskqgroup_adjust failed cnt: 1 stride: 1 mp_ncpus: 1 smp_started: 0
Timecounter "TSC-low" frequency 1202752882 Hz quality 800
taskqgroup_adjust failed cnt: 1 stride: 1 mp_ncpus: 1 smp_started: 0
uhub0: 2 ports with 2 removable, self powered
uhub1: 2 ports with 2 removable, self powered
uhub2: 2 ports with 2 removable, self powered
Trying to mount root from ufs:/dev/gpt/system [rw,acls]...
uhub3: 6 ports with 6 removable, self powered
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

ada0, ada1, ada2 are linked to:
# graid3 status
      Name    Status  Components
raid3/data  COMPLETE  diskid/DISK-WD-WMAEH2583910 (ACTIVE)
                      diskid/DISK-WD-WMAEP3043891 (ACTIVE)
                      diskid/DISK-WD-WCAL82220375 (ACTIVE)

which is mounted:
# mount
/dev/gpt/system on / (ufs, local, journaled soft-updates, acls)
devfs on /dev (devfs, local, multilabel)
fdescfs on /dev/fd (fdescfs)
procfs on /proc (procfs, local)
/dev/raid3/data on /mnt (ufs, local)


ifconfig:
bfe0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=3D80008<VLAN_MTU,LINKSTATE>
        ether 00:0c:6e:17:d3:5c
        inet 192.168.1.7 netmask 0xffffff00 broadcast 192.168.1.255
        nd6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
rl0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=3D2008<VLAN_MTU,WOL_MAGIC>
        ether 00:1e:2a:c1:b7:90
        inet 192.168.1.2 netmask 0xffffff00 broadcast 192.168.1.255
        nd6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
lo0: flags=3D8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
        options=3D600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
        inet6 ::1 prefixlen 128
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3
        inet 127.0.0.1 netmask 0xff000000
        nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL>
        groups: lo

Writing large files over a socket with SSH, SMB, nc to that mountpoint resu=
lts
in tremendous breakdowns of transfer speed down to kilobytes per second. SSH
becomes unresponsive. dmesg says over and over again:
Oct 24 21:24:37 bsd1home kernel: bfe0: link state changed to UP
Oct 24 21:24:38 bsd1home kernel: bfe0: link state changed to DOWN
Oct 24 21:24:40 bsd1home kernel: bfe0: link state changed to UP
Oct 24 21:24:41 bsd1home kernel: bfe0: link state changed to DOWN
Oct 24 21:24:43 bsd1home kernel: bfe0: link state changed to UP
Oct 24 21:24:44 bsd1home kernel: bfe0: link state changed to DOWN
Oct 24 21:24:46 bsd1home kernel: bfe0: link state changed to UP
Oct 24 21:24:48 bsd1home kernel: bfe0: link state changed to DOWN
Oct 24 21:24:50 bsd1home kernel: bfe0: link state changed to UP
Oct 24 21:24:50 bsd1home kernel: bfe0: link state changed to DOWN
Oct 24 21:24:52 bsd1home kernel: bfe0: link state changed to UP
Oct 24 21:24:52 bsd1home kernel: bfe0: link state changed to DOWN
Oct 24 21:24:54 bsd1home kernel: bfe0: link state changed to UP
Oct 24 21:24:54 bsd1home kernel: bfe0: link state changed to DOWN
Oct 24 21:24:56 bsd1home kernel: bfe0: link state changed to UP
Oct 24 21:24:56 bsd1home kernel: bfe0: link state changed to DOWN
Oct 24 21:24:58 bsd1home kernel: bfe0: link state changed to UP
Oct 24 21:24:58 bsd1home kernel: bfe0: link state changed to DOWN
Oct 24 21:25:00 bsd1home kernel: bfe0: link state changed to UP
Oct 24 21:25:02 bsd1home dhclient: New IP Address (bfe0): 192.168.1.7
Oct 24 21:25:02 bsd1home dhclient: New Subnet Mask (bfe0): 255.255.255.0
Oct 24 21:25:02 bsd1home dhclient: New Broadcast Address (bfe0): 192.168.1.=
255
Oct 24 21:25:02 bsd1home dhclient: New Routers (bfe0): 192.168.1.

The same test was performed with another NIC in that system: rl0 (Realtek
8139). No performance degregation was found.

Additionally, 10baseT and half-duplex where tested with some positive resul=
ts.
Though, dropouts came a bit later, but still unacceptable to use.

Similar issues were already reported some years ago:
http://www.mail-archive.com/freebsd-net@freebsd.org/msg11038.html
http://forums.nas4free.org/viewtopic.php?t=3D3606

It seems to be driver-related.

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