Messages in this thread |  | | From | Jeff Voskamp <> | Subject | Re: Untitled | Date | Tue, 2 Oct 2001 11:40:11 -0400 (EDT) |
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> > > Hello, > > I have written a linux kernel module. The linux version is 2.2.14. > > In this module I have declared an array of size 2048. If I use this array, the execution of this module function > > causes kernel to reboot. If I kmalloc() this array then execution of this module function doesnot cause any > > problem. > > Can you explain this behaviour? > > Thnaks, > > Dinesh > > Hmm. Perhaps there's is a bug in your module. > > -- > Thomas Hood > (Don't reply to the From: address but to jdthood_AT_yahoo.co.uk)
More likely he's causing a kernel stack overflow. If it's a local variable it's going to be either 4k or 8k (int or long) and the kernel stack is only 8k on intel. Try making it a static array outside of any function.
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