From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932385AbVHWUhL (ORCPT ); Tue, 23 Aug 2005 16:37:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932387AbVHWUhL (ORCPT ); Tue, 23 Aug 2005 16:37:11 -0400 Received: from pfepb.post.tele.dk ([195.41.46.236]:27003 "EHLO pfepb.post.tele.dk") by vger.kernel.org with ESMTP id S932385AbVHWUhJ (ORCPT ); Tue, 23 Aug 2005 16:37:09 -0400 Date: Tue, 23 Aug 2005 22:38:15 +0200 From: Sam Ravnborg To: manomugdha biswas Cc: bunnans@yahoo.com, linux-kernel@vger.kernel.org Subject: Re: kernel module seg fault Message-ID: <20050823203815.GA17575@mars.ravnborg.org> References: <006e01c5a7dd$c8395a20$2f08a8c0@varuna> <20050823163421.66485.qmail@web8503.mail.in.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050823163421.66485.qmail@web8503.mail.in.yahoo.com> User-Agent: Mutt/1.5.8i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org You do hide a lot of info. Without the Makefile we cannot see if you compile this in a decent way. We cannot see the implmentation of EnterFunction() etc. A quick grep in the kernel tree revealed very few users of DECLARE_WIATQUEUE_HEAD, and interruptible_sllep_on_timeout() are deprecated. So maybe bringing the driver up to modern state would help. PS. Ever read CodingStyle? Sam On Tue, Aug 23, 2005 at 05:34:21PM +0100, manomugdha biswas wrote: > Hi, > This is the code where i am getting this problem. > > static byte4 > VNICClientStart(unsigned long arg) > { > VNICClientCfgCreateInfo_t clientConfig; > struct socket *sock = NULL; > ubyte4 status = 0; > ubyte4 retryCnt = > VNIC_CLIENT_MAX_CONN_RETRY_CNT; > ubyte4 ret = 0; > byte4 len = 0; > struct net_device *dev = NULL; > VNICConnMap_t *connMap = NULL; > byte4 error = 0; > VNICHdrForm_t vnicHdr; > VNICVirtMirrIfaceAndServIPList_t *ifaceIPNode = > NULL; > > > DECLARE_WAIT_QUEUE_HEAD(wq); > init_waitqueue_head(&wq); > > > EnterFunction("VNICClientStart"); > > > memset(&vnicHdr, 0, sizeof(vnicHdr)); > while (retryCnt) { > --retryCnt; > > > if (!retryCnt) { > return VNIC_CLIENT_SERVER_RESPONSE_TIMEOUT; > } > > > /* wait for small */ > interruptible_sleep_on_timeout(&wq, 2); > } /* end while (retryCnt)*/ > > LeaveFunction("VNICClientStart"); > return VNIC_CLIENT_SERVER_SUCCESS; /* for success */ > } /* end VNICClientStart() */ > > I commneted out all the other functionalities of this > function to make it simple but still it is getting > kernel panic. > > This function gets called when i invoke ioctl() from > my user application and gets kernel panic. > > Regards, > Manomugdha > > > > --- bunnans@yahoo.com wrote: > > > Hi Biswas, > > > > You need to post the complete kernel dump message > > and body of your > > source code. > > > > -Bunnan > > > > -----Original Message----- > > From: linux-kernel-owner@vger.kernel.org > > [mailto:linux-kernel-owner@vger.kernel.org] On > > Behalf Of manomugdha > > biswas > > Sent: Tuesday, August 23, 2005 3:13 PM > > To: linux-kernel@vger.kernel.org > > Subject: kernel module seg fault > > > > Hi, > > I have written a kernel module and I can load > > (insmod) > > it without any error. But when i run my module it > > gets > > seg fault at interruptible_sleep_on_timeout(); > > > > I have used this function in the following way: > > > > DECLARE_WAIT_QUEUE_HEAD(wq); > > init_waitqueue_head(&wq); > > interruptible_sleep_on_timeout(&wq, 2); > > > > I am using redhat version 9.0 and kernel version > > 2.4.20-8. > > Could you please give some light on this issue? > > > > Manomugdha Biswas > > > > > > > > > > > > > > ____________________________________________________ > > Send a rakhi to your brother, buy gifts and win > > attractive prizes. Log > > on to http://in.promos.yahoo.com/rakhi/index.html > > - > > To unsubscribe from this list: send the line > > "unsubscribe linux-kernel" > > in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at > > http://vger.kernel.org/majordomo-info.html > > Please read the FAQ at http://www.tux.org/lkml/ > > > > > > - > > To unsubscribe from this list: send the line > > "unsubscribe linux-kernel" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at > > http://vger.kernel.org/majordomo-info.html > > Please read the FAQ at http://www.tux.org/lkml/ > > > > > Manomugdha Biswas > > > > > > > ____________________________________________________ > Send a rakhi to your brother, buy gifts and win attractive prizes. Log on to http://in.promos.yahoo.com/rakhi/index.html > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/