>Number:         11300
>Category:       port-i386
>Synopsis:       Outside communication locks up when exporting display to another machine
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    port-i386-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Oct 23 15:47:00 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator:     Andy Ruhl
>Release:        1.4.2
>Organization:
Tivoli/IBM
>Environment:
NetBSD loader.tucson.ibm.com 1.4.2 NetBSD 1.4.2 (GENERIC) #3: Wed Mar 15 23:41:54 PST 2000     toddpw@vader.toddpw.net:/usr/src/sys/arch/i386/compile/GENERIC i386

>Description:
Communication to the outside of the computer stops when trying to run X windows client on another machine and starting Mozilla.

Configuration of hardware:
IBM workstation M/T 6586-76H
P133
128 meg memory
IBM Token Ring adapter ISA 16/4 auto

Configuration of Software:
XFree86 3.3.6
fvwm2
Mozilla (seems to cause the problem)
Have not tried to recompile the kernel, using GENERIC

Symptoms of problem:
ping to a machine name gives this error:
ping: Cannot resolve "<machine name>" (Unknown host)

ping to an IP address gives this error:
ping: sendto: No buffer space available

Cannot telnet into the box
Cannot telnet out of the box

Output of dmesg:
NetBSD 1.4.2 (GENERIC) #3: Wed Mar 15 23:41:54 PST 2000
    toddpw@vader.toddpw.net:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: family 5 model 2 step b
cpu0: Intel Pentium (P54C) (586-class)
real mem  = 133824512
avail mem = 120512512
using 1659 buffers containing 6795264 bytes of memory
mainbus0 (root)
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o enabled, memory enabled
pchb0 at pci0 dev 0 function 0
pchb0: Intel 82437FX System Controller (TSC) (rev. 0x02)
pcib0 at pci0 dev 7 function 0
pcib0: Intel 82371FB PCI-to-ISA Bridge (PIIX) (rev. 0x02)
pciide0 at pci0 dev 7 function 1: Intel 82371FB IDE controller (PIIX)
pciide0: bus-master DMA support present
pciide0: primary channel wired to compatibility mode
wd0 at pciide0 channel 0 drive 0: <WDC AC21600H>
wd0: drive supports 16-sector pio transfers, lba addressing
wd0: 1549MB, 3148 cyl, 16 head, 63 sec, 512 bytes/sect x 3173184 sectors
wd0: 32-bits data port
wd0: drive supports PIO mode 4, DMA mode 2
pciide0: primary channel interrupting at irq 14
pciide0: secondary channel wired to compatibility mode
atapibus0 at pciide0 channel 1
cd0 at atapibus0 drive 0: <TOSHIBA CD-ROM XM-6102B, 8200105295, 1106> type 5 cdrom removable
cd0: 32-bits data port
cd0: drive supports PIO mode 3, DMA mode 2
pciide0: secondary channel interrupting at irq 15
wd0(pciide0:0:0): using PIO mode 4, DMA mode 2 (using DMA data transfers)
cd0(pciide0:1:0): using PIO mode 0, DMA mode 2 (using DMA data transfers)
vga1 at pci0 dev 8 function 0: S3 Trio32/64 (rev. 0x00)
wsdisplay0 at vga1: console (80x25, vt100 emulation)
isa0 at pcib0
tr0 at isa0 port 0xa20-0xa23 iomem 0xd8000-0xdbfff irq 10
tr0: address 00:04:ac:b5:cc:07 ring speed 16 Mbps
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
lpt2 at isa0 port 0x3bc-0x3bf: polled
pckbc0 at isa0 port 0x60-0x64
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard
opms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
sysbeep0 at pcppi0
isapnp0 at isa0 port 0x279: ISA Plug 'n Play device support
npx0 at isa0 port 0xf0-0xff: using exception 16
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB, 80 cyl, 2 head, 18 sec
isapnp0: no ISA Plug 'n Play devices found
biomask c040 netmask c440 ttymask d442
wscons: wskbd0 glued to wsdisplay0 (console)
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)

>How-To-Repeat:
Server: Above machine running NetBSD
Client: My primary workstation running NT4.0 SP6a, Exceed X client

1. Start exceed under passive on client machine.
2. Telnet to NetBSD box as standard user.
3. Under sh, "export DISPLAY=<nt workstation>:0.0
4. execute "/usr/X11R6/bin/fvwm2 &"
5. On client machine in Exceed, start an xterm.
6. Execute "/usr/X11R6/bin/mozilla &"
7. Mozilla starts, but gives a large error message box (not the standard
ones that happen when mozilla is first started, a different one).
8. Communication locks on NetBSD server.
>Fix:
Reboot the NetBSD box.
>Release-Note:
>Audit-Trail:
>Unformatted: