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nfs tcp related client crash



Hello, 
i just experienced a system crash on a nfs-client while trying to use
mount_nfs -T (tcp). This happens when trying to copy a file from the
mounted directory to a local disk. The machine immideately stands still,
no ping, nothing. Even the power-switch doesn't work anymore.
Has anybody seen this too?

If you need additional info, please tell me, i'll try to get it.

Ok, the relevant infos:
server:
-------------------------------------------------------------
OpenBSD werkel 3.1 WERKEL#1 i386

/etc/exports:

/home	-maproot=32767 -network=192.168.10 -mask=255.255.255.0

--------------------------------------------------------------
diff of kernel-config:
--- WERKEL	Wed Jun 26 12:28:24 2002
+++ GENERIC	Mon Apr  8 01:52:34 2002
@@ -285,7 +285,7 @@
 #we2	at isa? port 0x280 iomem 0xd0000 irq 3	# WD/SMC 80x3 ethernet
 we*	at isapnp?
 ec0	at isa? port 0x250 iomem 0xd8000 irq 9	# 3C503 ethernet
-ne0	at isa? port 0x340 irq 5		# NE[12]000 ethernet
+ne0	at isa? port 0x240 irq 9		# NE[12]000 ethernet
 ne1	at isa? port 0x300 irq 10		# NE[12]000 ethernet
 ne2	at isa? port 0x280 irq 9		# NE[12]000 ethernet
 ne*	at isapnp?				# NE[12]000 PnP ethernet

---------------------------------------------------------------
dmesg:

OpenBSD 3.1 (WERKEL) #1: Sat Jun 29 12:36:57 GMT 2002
    root_(_at_)_werkel:/usr/src/sys/arch/i386/compile/WERKEL
cpu0: F00F bug workaround installed
cpu0: Intel Pentium/MMX ("GenuineIntel" 586-class) 234 MHz
cpu0: FPU,V86,DE,PSE,TSC,MSR,MCE,CX8,MMX
real mem  = 268021760 (261740K)
avail mem = 242720768 (237032K)
using 3297 buffers containing 13504512 bytes (13188K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(58) BIOS, date 08/28/97, BIOS32 rev. 0 @ 0xfb400
apm0 at bios0: Power Management spec V1.2
apm0: AC on, battery charge unknown
pcibios0 at bios0: rev. 2.1 @ 0xf0000/0xb8d4
pcibios0: PCI BIOS has 7 Interrupt Routing table entries
pcibios0: PCI Interrupt Router at 000:07:0 ("Intel 82371AB PIIX4 ISA" rev 0x00)
pcibios0: PCI bus #0 is the last bus
bios0: ROM list: 0xc0000/0x8000
pci0 at mainbus0 bus 0: configuration mode 1 (bios)
pchb0 at pci0 dev 0 function 0 "Intel 82439TX System" rev 0x01
pcib0 at pci0 dev 7 function 0 "Intel 82371AB PIIX4 ISA" rev 0x01
pciide0 at pci0 dev 7 function 1 "Intel 82371AB IDE" rev 0x01: DMA, channel 0 wired to compatibility, channel 1 wired to compatibility
wd0 at pciide0 channel 0 drive 0: <IBM-DTTA-351680>
wd0: 16-sector PIO, LBA, 16124MB, 16383 cyl, 16 head, 63 sec, 33022080 sectors
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2
uhci0 at pci0 dev 7 function 2 "Intel 82371AB USB" rev 0x01: irq 11
usb0 at uhci0: USB revision 1.0
uhub0 at usb0
uhub0: vendor 0x0000 UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
"Intel 82371AB Power Mgmt" rev 0x01 at pci0 dev 7 function 3 not configured
vga1 at pci0 dev 14 function 0 "S3 86C864-0 (Vision864)" rev 0x00
wsdisplay0 at vga1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
ne3 at pci0 dev 15 function 0 "Realtek 8029" rev 0x00: irq 10
ne3: address 00:e0:4c:aa:fb:24
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
ne0 at isa0 port 0x340/32 irq 5
ne0: NE2000 (RTL8019) Ethernet
ne0: address 00:00:b4:b4:ba:a5
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
sysbeep0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
npx0 at isa0 port 0xf0/16: using exception 16
pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
pccom1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
biomask 4840 netmask 4c60 ttymask 4ce2
pctr: 586-class performance counters and user-level cycle counter enabled
dkcsum: wd0 matched BIOS disk 80
root on wd0a
rootdev=0x0 rrootdev=0x300 rawdev=0x302
nfsd send error 55
nfsd send error 55

(those nfs-errors are dated to another event according to /var/log/messages)

-------------------------------------------------------------------

rpcinfo -p werkel:
   program vers proto   port
    100000    2   tcp    111  portmapper
    100000    2   udp    111  portmapper
    100003    2   udp   2049  nfs
    100003    3   udp   2049  nfs
    100002    1   udp    697  rusersd
    100002    2   udp    697  rusersd
    100002    3   udp    697  rusersd
    100001    3   udp    925  rstatd
    100001    2   udp    925  rstatd
    100001    1   udp    925  rstatd
    100003    2   tcp   2049  nfs
    100003    3   tcp   2049  nfs
    100005    1   udp    922  mountd
    100005    3   udp    922  mountd
    100005    1   tcp    865  mountd
    100005    3   tcp    865  mountd

-------------------------------------------------------------------

ps ax:

 2397 ??  Is      0:00.02 mountd -n 
11788 ??  IL      0:00.00 nfsd: server (nfsd)
27758 ??  Is      0:00.01 nfsd: master (nfsd)
10038 ??  IL      0:00.03 nfsd: server (nfsd)
16189 ??  IL      0:00.89 nfsd: server (nfsd)
25687 ??  IL      0:25.25 nfsd: server (nfsd)

----------------------------------------------------------------------
----------------------------------------------------------------------

client:

OpenBSD chef 3.1 GENERIC#1 i386

grep nfs /etc/fstab:

werkel:/home /home nfs rw,tcp,soft	0 0

-----------------------------------------------------------------------


OpenBSD 3.1 (GENERIC) #1: Sat Jun 29 12:07:58 GMT 2002
    root_(_at_)_chef:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: AMD Athlon Model 4 (Thunderbird) ("AuthenticAMD" 686-class) 1.05 GHz
cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,SYS,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR
real mem  = 536391680 (523820K)
avail mem = 491536384 (480016K)
using 5689 buffers containing 26923008 bytes (26292K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(00) BIOS, date 08/16/01, BIOS32 rev. 0 @ 0xfdae0
apm0 at bios0: Power Management spec V1.2
apm0: AC on, no battery
pcibios0 at bios0: rev. 2.1 @ 0xf0000/0x10000
pcibios0: PCI IRQ Routing Table rev. 1.0 @ 0xf7810/160 (8 entries)
pcibios0: PCI Interrupt Router at 000:02:0 ("SIS 85C503 ISA" rev 0x00)
pcibios0: PCI bus #1 is the last bus
bios0: ROM list: 0xc0000/0xbc00
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 "SIS 735 Host-PCI" rev 0x01
ppb0 at pci0 dev 1 function 0 "SIS 86C201 Host-AGP" rev 0x00
pci1 at ppb0 bus 1
vga1 at pci1 dev 0 function 0 "Nvidia GeForce2 MX" rev 0xa1
wsdisplay0 at vga1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
pcib0 at pci0 dev 2 function 0 "SIS 85C503 ISA" rev 0x00
ohci0 at pci0 dev 2 function 2 "SIS 5597/5598 USB" rev 0x07: irq 5, OHCI version 1.0, legacy support
usb0 at ohci0: USB revision 1.0
uhub0 at usb0
uhub0: vendor 0x0000 OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 3 ports with 3 removable, self powered
ohci1 at pci0 dev 2 function 3 "SIS 5597/5598 USB" rev 0x07: irq 10, OHCI version 1.0, legacy support
usb1 at ohci1: USB revision 1.0
uhub1 at usb1
uhub1: vendor 0x0000 OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 3 ports with 3 removable, self powered
pciide0 at pci0 dev 2 function 5 "SIS 5513 EIDE" rev 0xd0: DMA, channel 0 wired to compatibility, channel 1 wired to compatibility
wd0 at pciide0 channel 0 drive 0: <IBM-DJNA-352030>
wd0: 16-sector PIO, LBA, 19470MB, 16383 cyl, 16 head, 63 sec, 39876480 sectors
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2
atapiscsi0 at pciide0 channel 1 drive 0
scsibus0 at atapiscsi0: 2 targets
cd0 at scsibus0 targ 0 lun 0: <SONY, CD-RW CRX175E2, S002> SCSI0 5/cdrom removable
cd0(pciide0:1:0): using PIO mode 4, DMA mode 2
emu0 at pci0 dev 13 function 0 "Creative Labs SoundBlaster Live" rev 0x04: irq 10
ac97: codec id 0x54524103 (TriTech Microelectronics TR28023)
audio0 at emu0
"Creative Labs SoundBlaster Live Digital Input" rev 0x01 at pci0 dev 13 function 1 not configured
rl0 at pci0 dev 15 function 0 "Realtek 8139" rev 0x10: irq 5 address 00:00:21:fa:19:88
rlphy0 at rl0 phy 0: RTL internal phy
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pmsi0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pmsi0 mux 0
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
sysbeep0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
npx0 at isa0 port 0xf0/16: using exception 16
pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
pccom1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
biomask c460 netmask c460 ttymask d4e2
pctr: user-level cycle counter enabled
mtrr: Pentium Pro MTRR support
dkcsum: wd0 matched BIOS disk 80
root on wd0a
rootdev=0x0 rrootdev=0x300 rawdev=0x302



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