Messages in this thread | | | Date | Tue, 1 Jul 2003 10:38:27 -0500 | From | linas@austin ... | Subject | panic and timer interrupts? |
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I've got a machine here that just did one of the stranger kernel things I've ever seen. Due to some bug, it panic'ed. But then, during the panic, it took a timer interrupt, and then handled some network interrupts, handled some network data, and seems to maybe even have scheduled some user-land processes before getting hoplessly tangled up.
So, my naive kernel questions as follows: I would have thought that interrupts would be disabled during a panic, but I can't find any code that does this. Why is this? Is this a bug? Is this intentional?
It got me to thinking about a hang mode I've seen not infrequently on PC's: Machine is hung, unresponsive to keyboard, telnet, etc. but does reply to pings. I've never bothered to debug those, but now I'm wondering if that's a related manifestation.
--linas
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