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Thread View: comp.sys.next.hardware
1 messages
1 total messages Started by druck Dennis W. Ruck Tue, 05 Jan 1993 19:19
Spurious DMA Interrupts
#1469
Author: druck Dennis W. Ruck
Date: Tue, 05 Jan 1993 19:19
52 lines
2157 bytes
I have what I believe is a network related problem, but my network gurus here  
have been unable to track down any problems. The symptons are that whenever I  
perform some function that requires network access (nfs, ftp, ...) I get error  
messages of the following sort logged:




spurious DMA interrupt


NFS server frodo ok



Network access is definitely slower than before these symptons cropped up.  
Also, ping gives unusual results as shown:

gandalf<54> ping frodo
PING frodo: 56 data bytes
64 bytes from 129.92.100.18: icmp_seq=1. time=2. ms
64 bytes from 129.92.100.18: icmp_seq=2. time=2. ms
64 bytes from 129.92.100.18: icmp_seq=3. time=2. ms
64 bytes from 129.92.100.18: icmp_seq=4. time=38. ms
64 bytes from 129.92.100.18: icmp_seq=5. time=2. ms
64 bytes from 129.92.100.18: icmp_seq=6. time=2. ms
64 bytes from 129.92.100.18: icmp_seq=7. time=2. ms
64 bytes from 129.92.100.18: icmp_seq=8. time=2. ms
64 bytes from 129.92.100.18: icmp_seq=9. time=2. ms
64 bytes from 129.92.100.18: icmp_seq=10. time=2. ms

[... lines deleted ...]

64 bytes from 129.92.100.18: icmp_seq=67. time=42. ms
64 bytes from 129.92.100.18: icmp_seq=68. time=2. ms
64 bytes from 129.92.100.18: icmp_seq=69. time=2. ms
^C
----frodo PING Statistics----
70 packets transmitted, 65 packets received, 7% packet loss
round-trip (ms)  min/avg/max = 2/6/60
gandalf<55> 

I would appreciate any help in tracking down the cause of these problems.

Thanks!

Dennis

--
Dennis W. Ruck               Air Force Institute of Technology
druck@afit.af.mil            Wright-Patterson AFB, Ohio
                             (NeXTmail Welcome)
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