Messages in this thread | | | Date | Thu, 5 Mar 1998 14:48:41 +0100 (CET) | From | Daniel Ryde <> | Subject | Re: Sporadious hang on 2.0.3[0,1,2,3,4pre2] |
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Here are some observations of mine:
We have many servers here running 2.0.3x kernels. Most of these don't have any problems at all, it is very seldom these hangs, even those under heavy load. Exept all the terminal servers.
The difference between these is: They mostly run ppp, sometimes slip They use many serial ports They do "slow" forwarding They handle alot of interrups
If I compare this to the other people who have problems, I can only think of the massive amount of interrupts. Here are two examples:
upime 21:22h: # more /proc/interrupts 0: 7694854 timer 1: 528 keyboard 2: 0 cascade 4: 9515 + serial 5: 8173548 + serial 7: 9461273 + serial 9: 10002290 + serial 10: 1554783 DS21140 Tulip 13: 1 math error 14: 212553 + ide0 average 480 interrups/second
uptime 17:33h: # more /proc/interrupts 0: 6322647 timer 1: 1210 keyboard 2: 0 cascade 3: 464915 + serial 5: 4386863 + serial 7: 4298928 + serial 9: 11915981 + serial 11: 936885 SMC EPIC/100 13: 1 math error 14: 267463 + ide0 average 450 interrupts/second.
Is there anyone that have much less amount of interrupts, but still experience these hangs?
Due to the nature of these hangs I guess it can be: During interrupt before new interrupts is enabeld. Dead loop inside cli/sti. Destroyed interrupt table.
/D.Ryde
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