re(4) troubles on -4 and -current

[d.den.brok%uni-bonn.de@localhost (Dennis den Brok)]

Hello,

recently, I've been stressing my several re(4)-interfaces a little
more than usual, which causes three kinds of errors:

 * Often, after a reboot, any of the present interfaces may suffer
 from recurring watchdog timeouts, which can only be cured by
 rebooting [sufficiently often].  
 * Seldomly, the driver complains about writes to some PHY registers.
 Sorry, I don't recall any details; it really doesn't happen often.
 Anyway, the interface won't work properly until after reboot.
 * Stressing the interfaces with high bandwith often results in a
 complete lockup. This is quite easily reproducible (and obviously
 requires a reboot as well).

It happens on any version of NetBSD that supports this particular
revision of the chip (netbsd-4* and HEAD), so is maybe not related
to recent threading changes, especially as OpenBSD suffers from
the same symptoms.  Linux and DragonFly don't seem to, though I
didn't test for these bugs specifically when I had those installed
for a short while.

dmesg output is attached. It would be very nice if this could be
solved somehow!

TIA,

-- Dennis den Brok

Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
    2006, 2007
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 4.0 (GENERIC.NOACPI) #0: Sun May  4 02:14:37 CEST 2008
        
dennis%ikobar.lokales.netz@localhost:/usr/src/sys/arch/i386/compile/GENERIC.NOACPI
total memory = 1015 MB
rbus: rbus_min_start set to 0x40000000
avail memory = 985 MB
timecounter: Timecounters tick every 10.000 msec
timecounter: Timecounter "i8254" frequency 1193182 Hz quality 100
BIOS32 rev. 0 found at 0xf0010
mainbus0 (root)
cpu0 at mainbus0: (uniprocessor)
cpu0: Intel Pentium M (Yonah) (686-class), 1066.79 MHz, id 0x6e8
cpu0: features afe9fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
cpu0: features afe9fbff<PGE,MCA,CMOV,PAT,CFLUSH,DS,ACPI,MMX>
cpu0: features afe9fbff<FXSR,SSE,SSE2,SS,TM,SBF>
cpu0: features2 c109<SSE3,MONITOR,TM2,xTPR>
cpu0: "Intel(R) Celeron(R) M CPU        423  @ 1.06GHz"
cpu0: I-cache 32 KB 64B/line 8-way, D-cache 32 KB 64B/line 8-way
cpu0: using thermal monitor 1
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
pchb0 at pci0 dev 0 function 0
pchb0: Intel 82945GM/PM/GMS Host Bridge (rev. 0x03)
agp0 at pchb0: detected 7932k stolen memory
agp0: aperture at 0xe0000000, size 0x10000000
vga1 at pci0 dev 2 function 0: Intel 82945GM/PM/GMS Integrated Graphics Device 
(rev. 0x03)
wsdisplay0 at vga1 kbdmux 1: console (80x25, vt100 emulation)
wsmux1: connecting to wsdisplay0
Intel 82945GM/PM/GMS Integrated Graphics Device (miscellaneous display, 
revision 0x03) at pci0 dev 2 function 1 not configured
azalia0 at pci0 dev 27 function 0: Generic High Definition Audio Controller
azalia0: interrupting at irq 10
azalia0: host: Intel 82801GB/GR High Definition Audio Controller (rev. 1)
azalia0: host: High Definition Audio rev. 1.0
ppb0 at pci0 dev 28 function 0: Intel 82801GB/GR PCI Express Port #1 (rev. 0x01)
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled, rd/line, wr/inv ok
re0 at pci1 dev 0 function 0pci_mem_find: void region
: RealTek 8168B/8111B PCIe Gigabit Ethernet (rev. 0x01)
re0: interrupting at irq 10
re0: Ethernet address 00:e0:f4:16:cc:e0
re0: using 256 tx descriptors
rgephy0 at re0 phy 7: RTL8169S/8110S 1000BASE-T media interface, rev. 2
rgephy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 
1000baseT-FDX, auto
ppb1 at pci0 dev 28 function 1: Intel 82801GB/GR PCI Express Port #2 (rev. 0x01)
pci2 at ppb1 bus 2
pci2: i/o space, memory space enabled, rd/line, wr/inv ok
re1 at pci2 dev 0 function 0pci_mem_find: void region
: RealTek 8168B/8111B PCIe Gigabit Ethernet (rev. 0x01)
re1: interrupting at irq 11
re1: Ethernet address 00:e0:f4:16:cc:e1
re1: using 256 tx descriptors
rgephy1 at re1 phy 7: RTL8169S/8110S 1000BASE-T media interface, rev. 2
rgephy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 
1000baseT-FDX, auto
ppb2 at pci0 dev 28 function 2: Intel 82801GB/GR PCI Express Port #3 (rev. 0x01)
pci3 at ppb2 bus 3
pci3: i/o space, memory space enabled, rd/line, wr/inv ok
re2 at pci3 dev 0 function 0pci_mem_find: void region
: RealTek 8168B/8111B PCIe Gigabit Ethernet (rev. 0x01)
re2: interrupting at irq 5
re2: Ethernet address 00:e0:f4:16:cc:e2
re2: using 256 tx descriptors
rgephy2 at re2 phy 7: RTL8169S/8110S 1000BASE-T media interface, rev. 2
rgephy2: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 
1000baseT-FDX, auto
uhci0 at pci0 dev 29 function 0: Intel 82801GB/GR USB UHCI Controller (rev. 
0x01)
uhci0: interrupting at irq 15
usb0 at uhci0: USB revision 1.0
uhub0 at usb0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1 at pci0 dev 29 function 1: Intel 82801GB/GR USB UHCI Controller (rev. 
0x01)
uhci1: interrupting at irq 3
usb1 at uhci1: USB revision 1.0
uhub1 at usb1
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhci2 at pci0 dev 29 function 2: Intel 82801GB/GR USB UHCI Controller (rev. 
0x01)
uhci2: interrupting at irq 5
usb2 at uhci2: USB revision 1.0
uhub2 at usb2
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
uhci3 at pci0 dev 29 function 3: Intel 82801GB/GR USB UHCI Controller (rev. 
0x01)
uhci3: interrupting at irq 10
usb3 at uhci3: USB revision 1.0
uhub3 at usb3
uhub3: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub3: 2 ports with 2 removable, self powered
ehci0 at pci0 dev 29 function 7: Intel 82801GB/GR USB EHCI Controller (rev. 
0x01)
ehci0: interrupting at irq 15
ehci0: BIOS has given up ownership
ehci0: EHCI version 1.0
ehci0: companion controllers, 2 ports each: uhci0 uhci1 uhci2 uhci3
usb4 at ehci0: USB revision 2.0
uhub4 at usb4
uhub4: Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub4: 8 ports with 8 removable, self powered
ppb3 at pci0 dev 30 function 0: Intel 82801BA Hub-PCI Bridge (rev. 0xe1)
pci4 at ppb3 bus 4
pci4: no spaces enabled!
pcib0 at pci0 dev 31 function 0
pcib0: Intel 82801GB/GR LPC Interface Bridge (rev. 0x01)
piixide0 at pci0 dev 31 function 1
piixide0: Intel 82801GB/GR IDE Controller (ICH7) (rev. 0x01)
piixide0: bus-master DMA support present
piixide0: primary channel configured to compatibility mode
piixide0: primary channel interrupting at irq 14
atabus0 at piixide0 channel 0
piixide0: secondary channel configured to compatibility mode
piixide0: secondary channel ignored (disabled)
Intel 82801GB/GR SMBus Controller (SMBus serial bus, revision 0x01) at pci0 dev 
31 function 3 not configured
isa0 at pcib0
pckbc0 at isa0 port 0x60-0x64
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
attimer0 at isa0 port 0x40-0x43: AT Timer
pcppi0 at isa0 port 0x61
pcppi0: children must have an explicit unit
midi0 at pcppi0: PC speaker (CPU-intensive output)
sysbeep0 at pcppi0
isapnp0 at isa0 port 0x279: ISA Plug 'n Play device support
npx0 at isa0 port 0xf0-0xff
npx0: reported by CPUID; using exception 16
pcppi0: attached to attimer0
isapnp0: no ISA Plug 'n Play devices found
timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0
azalia0: codec[2]: Realtek ALC882 (rev. 1.1)
azalia0: codec[2]: High Definition Audio rev. 1.0
azalia0: playback: max channels=8, encodings=1<PCM>
azalia0: playback: PCM 
formats=e0560<24bit,20bit,16bit,192kHz,96kHz,48kHz,44.1kHz>
azalia0: recording: max channels=6, encodings=1<PCM>
azalia0: recording: PCM formats=60160<20bit,16bit,96kHz,48kHz,44.1kHz>
audio0 at azalia0: full duplex, independent
Kernelized RAIDframe activated
ugen0 at uhub4 port 6
ugen0: Canon CanoScan, rev 2.00/3.06, addr 2
uaudio0 at uhub2 port 1 configuration 1 interface 0: vendor 0x0ccd USB Audio, 
rev 1.10/1.00, addr 2
uaudio0: audio rev 1.00
audio1 at uaudio0: full duplex, independent
uhidev0 at uhub2 port 1 configuration 1 interface 3
uhidev0: vendor 0x0ccd USB Audio, rev 1.10/1.00, addr 2, iclass 3/0
uhid0 at uhidev0: input=3, output=3, feature=0
wd0 at atabus0 drive 0: <SanDisk SDCFX-1024>
wd0: drive supports 4-sector PIO transfers, LBA addressing
wd0: 977 MB, 1986 cyl, 16 head, 63 sec, 512 bytes/sect x 2001888 sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2
wd0(piixide0:0:0): using PIO mode 4, DMA mode 2 (using DMA)
boot device: wd0
root on wd0a dumps on wd0b
root file system type: ffs
re1: watchdog timeout
re1: reset never completed!
re0: reset never completed!
wsdisplay0: screen 1 added (80x25, vt100 emulation)
wsdisplay0: screen 2 added (80x25, vt100 emulation)
wsdisplay0: screen 3 added (80x25, vt100 emulation)
wsdisplay0: screen 4 added (80x25, vt100 emulation)
re0: watchdog timeout
re0: reset never completed!
re1: watchdog timeout
re1: reset never completed!
syncing disks... 2 2 1 done
unmounting file systems...Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 
2002, 2003, 2004, 2005,
    2006, 2007
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 4.0 (GENERIC.NOACPI) #0: Sun May  4 02:14:37 CEST 2008
        
dennis%ikobar.lokales.netz@localhost:/usr/src/sys/arch/i386/compile/GENERIC.NOACPI
total memory = 1015 MB
rbus: rbus_min_start set to 0x40000000
avail memory = 985 MB
timecounter: Timecounters tick every 10.000 msec
timecounter: Timecounter "i8254" frequency 1193182 Hz quality 100
BIOS32 rev. 0 found at 0xf0010
mainbus0 (root)
cpu0 at mainbus0: (uniprocessor)
cpu0: Intel Pentium M (Yonah) (686-class), 1066.77 MHz, id 0x6e8
cpu0: features afe9fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
cpu0: features afe9fbff<PGE,MCA,CMOV,PAT,CFLUSH,DS,ACPI,MMX>
cpu0: features afe9fbff<FXSR,SSE,SSE2,SS,TM,SBF>
cpu0: features2 c109<SSE3,MONITOR,TM2,xTPR>
cpu0: "Intel(R) Celeron(R) M CPU        423  @ 1.06GHz"
cpu0: I-cache 32 KB 64B/line 8-way, D-cache 32 KB 64B/line 8-way
cpu0: using thermal monitor 1
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
pchb0 at pci0 dev 0 function 0
pchb0: Intel 82945GM/PM/GMS Host Bridge (rev. 0x03)
agp0 at pchb0: detected 7932k stolen memory
agp0: aperture at 0xe0000000, size 0x10000000
vga1 at pci0 dev 2 function 0: Intel 82945GM/PM/GMS Integrated Graphics Device 
(rev. 0x03)
wsdisplay0 at vga1 kbdmux 1: console (80x25, vt100 emulation)
wsmux1: connecting to wsdisplay0
Intel 82945GM/PM/GMS Integrated Graphics Device (miscellaneous display, 
revision 0x03) at pci0 dev 2 function 1 not configured
azalia0 at pci0 dev 27 function 0: Generic High Definition Audio Controller
azalia0: interrupting at irq 10
azalia0: host: Intel 82801GB/GR High Definition Audio Controller (rev. 1)
azalia0: host: High Definition Audio rev. 1.0
ppb0 at pci0 dev 28 function 0: Intel 82801GB/GR PCI Express Port #1 (rev. 0x01)
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled, rd/line, wr/inv ok
re0 at pci1 dev 0 function 0pci_mem_find: void region
: RealTek 8168B/8111B PCIe Gigabit Ethernet (rev. 0x01)
re0: interrupting at irq 10
re0: Ethernet address 00:e0:f4:16:cc:e0
re0: using 256 tx descriptors
rgephy0 at re0 phy 7: RTL8169S/8110S 1000BASE-T media interface, rev. 2
rgephy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 
1000baseT-FDX, auto
ppb1 at pci0 dev 28 function 1: Intel 82801GB/GR PCI Express Port #2 (rev. 0x01)
pci2 at ppb1 bus 2
pci2: i/o space, memory space enabled, rd/line, wr/inv ok
re1 at pci2 dev 0 function 0pci_mem_find: void region
: RealTek 8168B/8111B PCIe Gigabit Ethernet (rev. 0x01)
re1: interrupting at irq 11
re1: Ethernet address 00:e0:f4:16:cc:e1
re1: using 256 tx descriptors
rgephy1 at re1 phy 7: RTL8169S/8110S 1000BASE-T media interface, rev. 2
rgephy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 
1000baseT-FDX, auto
ppb2 at pci0 dev 28 function 2: Intel 82801GB/GR PCI Express Port #3 (rev. 0x01)
pci3 at ppb2 bus 3
pci3: i/o space, memory space enabled, rd/line, wr/inv ok
re2 at pci3 dev 0 function 0pci_mem_find: void region
: RealTek 8168B/8111B PCIe Gigabit Ethernet (rev. 0x01)
re2: interrupting at irq 5
re2: Ethernet address 00:e0:f4:16:cc:e2
re2: using 256 tx descriptors
rgephy2 at re2 phy 7: RTL8169S/8110S 1000BASE-T media interface, rev. 2
rgephy2: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 
1000baseT-FDX, auto
uhci0 at pci0 dev 29 function 0: Intel 82801GB/GR USB UHCI Controller (rev. 
0x01)
uhci0: interrupting at irq 15
usb0 at uhci0: USB revision 1.0
uhub0 at usb0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1 at pci0 dev 29 function 1: Intel 82801GB/GR USB UHCI Controller (rev. 
0x01)
uhci1: interrupting at irq 3
usb1 at uhci1: USB revision 1.0
uhub1 at usb1
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhci2 at pci0 dev 29 function 2: Intel 82801GB/GR USB UHCI Controller (rev. 
0x01)
uhci2: interrupting at irq 5
usb2 at uhci2: USB revision 1.0
uhub2 at usb2
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
uhci3 at pci0 dev 29 function 3: Intel 82801GB/GR USB UHCI Controller (rev. 
0x01)
uhci3: interrupting at irq 10
usb3 at uhci3: USB revision 1.0
uhub3 at usb3
uhub3: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub3: 2 ports with 2 removable, self powered
ehci0 at pci0 dev 29 function 7: Intel 82801GB/GR USB EHCI Controller (rev. 
0x01)
ehci0: interrupting at irq 15
ehci0: BIOS has given up ownership
ehci0: EHCI version 1.0
ehci0: companion controllers, 2 ports each: uhci0 uhci1 uhci2 uhci3
usb4 at ehci0: USB revision 2.0
uhub4 at usb4
uhub4: Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub4: 8 ports with 8 removable, self powered
ppb3 at pci0 dev 30 function 0: Intel 82801BA Hub-PCI Bridge (rev. 0xe1)
pci4 at ppb3 bus 4
pci4: no spaces enabled!
pcib0 at pci0 dev 31 function 0
pcib0: Intel 82801GB/GR LPC Interface Bridge (rev. 0x01)
piixide0 at pci0 dev 31 function 1
piixide0: Intel 82801GB/GR IDE Controller (ICH7) (rev. 0x01)
piixide0: bus-master DMA support present
piixide0: primary channel configured to compatibility mode
piixide0: primary channel interrupting at irq 14
atabus0 at piixide0 channel 0
piixide0: secondary channel configured to compatibility mode
piixide0: secondary channel ignored (disabled)
Intel 82801GB/GR SMBus Controller (SMBus serial bus, revision 0x01) at pci0 dev 
31 function 3 not configured
isa0 at pcib0
pckbc0 at isa0 port 0x60-0x64
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
attimer0 at isa0 port 0x40-0x43: AT Timer
pcppi0 at isa0 port 0x61
pcppi0: children must have an explicit unit
midi0 at pcppi0: PC speaker (CPU-intensive output)
sysbeep0 at pcppi0
isapnp0 at isa0 port 0x279: ISA Plug 'n Play device support
npx0 at isa0 port 0xf0-0xff
npx0: reported by CPUID; using exception 16
pcppi0: attached to attimer0
isapnp0: no ISA Plug 'n Play devices found
timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0
azalia0: codec[2]: Realtek ALC882 (rev. 1.1)
azalia0: codec[2]: High Definition Audio rev. 1.0
azalia0: playback: max channels=8, encodings=1<PCM>
azalia0: playback: PCM 
formats=e0560<24bit,20bit,16bit,192kHz,96kHz,48kHz,44.1kHz>
azalia0: recording: max channels=6, encodings=1<PCM>
azalia0: recording: PCM formats=60160<20bit,16bit,96kHz,48kHz,44.1kHz>
audio0 at azalia0: full duplex, independent
Kernelized RAIDframe activated
ugen0 at uhub4 port 6
ugen0: Canon CanoScan, rev 2.00/3.06, addr 2
uaudio0 at uhub2 port 1 configuration 1 interface 0: vendor 0x0ccd USB Audio, 
rev 1.10/1.00, addr 2
uaudio0: audio rev 1.00
audio1 at uaudio0: full duplex, independent
uhidev0 at uhub2 port 1 configuration 1 interface 3
uhidev0: vendor 0x0ccd USB Audio, rev 1.10/1.00, addr 2, iclass 3/0
uhid0 at uhidev0: input=3, output=3, feature=0
wd0 at atabus0 drive 0: <SanDisk SDCFX-1024>
wd0: drive supports 4-sector PIO transfers, LBA addressing
wd0: 977 MB, 1986 cyl, 16 head, 63 sec, 512 bytes/sect x 2001888 sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2
wd0(piixide0:0:0): using PIO mode 4, DMA mode 2 (using DMA)
boot device: wd0
root on wd0a dumps on wd0b
root file system type: ffs
wsdisplay0: screen 1 added (80x25, vt100 emulation)
wsdisplay0: screen 2 added (80x25, vt100 emulation)
wsdisplay0: screen 3 added (80x25, vt100 emulation)
wsdisplay0: screen 4 added (80x25, vt100 emulation)
ulpt0 at uhub0 port 1 configuration 1 interface 0
ulpt0: Kyocera Kyocera FS-1030D, rev 1.01/0.00, addr 2, iclass 7/1
ulpt0: using bi-directional mode
ulpt0: at uhub0 port 1 (addr 2) disconnected
ulpt0 detached
ulpt0 at uhub0 port 1 configuration 1 interface 0
ulpt0: Kyocera Kyocera FS-1030D, rev 1.01/0.00, addr 2, iclass 7/1
ulpt0: using bi-directional mode
ulpt0: at uhub0 port 1 (addr 2) disconnected
ulpt0 detached