Date: Tue, 9 Apr 2002 18:23:33 -0700 (PDT) From: "Kamal R. Prasad" <kamalpr@yahoo.com> To: freebsd-gnats-submit@FreeBSD.org Subject: i386/36944: kldload causes kernel panic Message-ID: <200204100123.g3A1NX604113@freefall.freebsd.org>
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>Number: 36944 >Category: i386 >Synopsis: kldload causes kernel panic >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Apr 09 18:30:01 PDT 2002 >Closed-Date: >Last-Modified: >Originator: Kamal R. Prasad >Release: 4.5-STABLE >Organization: >Environment: >Description: I have a sample device driver which when we try to load, causes a kernel panic because of a page fault. (Im new to device drivers so pl. excuse me for any bugs in the code). the c code(chardev_example.c) is pasted below:- ----------------------------------------------- #include <sys/types.h> #include <sys/module.h> #include <sys/systm.h> #include <sys/errno.h> #include <sys/param.h> #include <sys/kernel.h> static int chardev_example_load(struct module* m, int what, void* ar { int err = 0; switch (what) { case MOD_LOAD : uprintf("skeleton kld loaded\n"); break; case MOD_UNLOAD : uprintf("skeleton kld un-loaded\n" break; default: err = EINVAL; break; } return err; } DECLARE_MODULE(chardev_example, chardev_example_load, SI_SUB_KLD, SI_ORDER_ANY); ---------------------------------------------------------- the Makefile is pasted below:- ----------------------------------------- SRCS=chardev_example.c KMOD=chardev_example .include <bsd.kmod.mk> ----------------------------------------- >How-To-Repeat: make kldload -v ./chardev_example.ko >Fix: >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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