https://www.emblogic.com/blog/10/status-of-scull-and-char-driver/ Embedded System and ARM Training Mon, 07 Oct 2013 04:00:03 +0000 hourly 1 http://wordpress.org/?v=3.9.1 https://www.emblogic.com/blog/10/status-of-scull-and-char-driver/#comment-337 Thu, 13 Oct 2011 14:41:18 +0000 http://emblogic.org/blog/?p=1053#comment-337 Another 1 ,, there can be a problem with ur memset as u r trying to set memory locations that aren’t allocated to you program and after memset performs the setting oprations at unauthorized locations , the program that hv acces to this modified area will found garbeled value and will result into a CRASSShh
;(

]]> https://www.emblogic.com/blog/10/status-of-scull-and-char-driver/#comment-336 Thu, 13 Oct 2011 14:34:40 +0000 http://emblogic.org/blog/?p=1053#comment-336 may be you are making the memory area free that is not allocated to your program . thing is that your kfree will work properly and free the memory area specified to it ,but as this memory region wasn’t allocated to your program and u mistakenly freed it thus when the program that was attached to the memory region tries to access it doesn’t find out and kernel got CRAAAASHhh.

]]> https://www.emblogic.com/blog/10/status-of-scull-and-char-driver/#comment-332 Thu, 13 Oct 2011 04:38:19 +0000 http://emblogic.org/blog/?p=1053#comment-332 there is some memory fault occurred you just check your memory allocation or memset method and its argument also . and study about memory leakage and page fault……

]]>