bediger@uunet.uu.net (bruce allen ediger) (02/02/91)
I'm running uab+, a unix-to-appletalk bridge on a Sparcstation 330 under
SunOS 4.0.3. I'm using the version of uab that uses nit network interface
tap STREAMS modules running as a user process (albeit owned by root).
Periodically, something happens that causes terminal I/O to stop. Sunview
continues to work, in that I can move windows, and open and close them,
but telnet and rlogin from another machine say "/dev/ttyp0: no such
address or device". Console messages (on the sparcstation running uab)
come up saying "ldtermopen: open fails, can't allocate state structure".
The Sparcstation still responds to ping from another workstation, and it
is possible to use rsh from other workstations, as long as the command to
be run on the sparcstation is specified on the rsh command line. Without
the specific command, the message about /dev/ttyp0 (no such device or
address) returns.
Killing the uab process immediately fixes the problem.
I can't figure out what gives, since ps -augxw says that the uab process
has only about 4% of real memory, and netstat -m shows this:
rtgds2 22# rsh rtgds1 netstat -m
413/448 mbufs in use:
133 mbufs allocated to data
12 mbufs allocated to packet headers
87 mbufs allocated to socket structures
120 mbufs allocated to protocol control blocks
21 mbufs allocated to routing table entries
38 mbufs allocated to socket names and addresses
2 mbufs allocated to interface addresses
0/24 mapped pages in use
80 Kbytes allocated to network (64% in use)
0 requests for memory denied
streams allocation:
cumulative allocation
current maximum total failures
streams 17 21 215 0
queues 60 78 792 0
mblks 446 509 31883137 0
total dblks 446 509 16468520 7344856
size 4 dblks 0 67 396842 0
size 16 dblks 5 36 237979 0
size 64 dblks 252 255 10619144 2352870
size 128 dblks 108 108 3108822 3085232
size 256 dblks 36 36 679316 900703
size 512 dblks 7 7 52628 163200
size 1024 dblks 10 10 1140133 455289
size 2048 dblks 28 28 233656 370970
size 4096 dblks 0 0 0 16592
rtgds1 is the sparcstation that uab is running on, rtgds2 is allowed root
access via rsh.