From mboxrd@z Thu Jan 1 00:00:00 1970 From: Patrick Mansfield Subject: Re: [PATCH] update sd to use kref and fix open/release race Date: Fri, 9 Apr 2004 10:17:29 -0700 Sender: linux-scsi-owner@vger.kernel.org Message-ID: <20040409101729.A3121@beaverton.ibm.com> References: <1081518779.2203.29.camel@mulgrave> <20040409095657.A2970@beaverton.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from e3.ny.us.ibm.com ([32.97.182.103]:35713 "EHLO e3.ny.us.ibm.com") by vger.kernel.org with ESMTP id S261416AbUDIRRx (ORCPT ); Fri, 9 Apr 2004 13:17:53 -0400 Content-Disposition: inline In-Reply-To: <20040409095657.A2970@beaverton.ibm.com>; from patmans@us.ibm.com on Fri, Apr 09, 2004 at 09:56:57AM -0700 List-Id: linux-scsi@vger.kernel.org To: James Bottomley Cc: SCSI Mailing List , greg@kroah.com I spoke a bit too soon, a remove module is giving me an oops. Running scsi-misc-2.6 + this patch. I did not try scsi-misc-2.6 plain. I loaded the qla2300 module, removed a single lun via the sysfs interface, and then rmmod qla2300. Let me know if you need any other information. elm3b79.beaverton.ibm.com login: Unable to handle kernel NULL pointer dereference at virtual address 00000000 printing eip: c01ea4b3 *pde = 33da1001 Oops: 0000 [#1] SMP CPU: 2 EIP: 0060:[] Not tainted EFLAGS: 00010286 (2.6.5-rc2) EIP is at scsi_device_set_state+0xa3/0xe4 eax: 00000000 ebx: 00000004 ecx: 00000003 edx: 00000018 esi: f416f000 edi: c02eae38 ebp: f3d22000 esp: f3d23e94 ds: 007b es: 007b ss: 0068 Process modprobe (pid: 1493, threadinfo=f3d22000 task=f3e6a6d0) Stack: f416f1e0 c02b5688 c02b5690 00000003 f416f000 f4182000 c01ec39a f416f000 00000003 f3e40000 f4182000 c01eba42 f416f000 f3e40000 f4ba0c44 c01e57cd f3e40000 f3e40000 f3e40000 00000000 f3e401c8 f88af667 f3e40000 f3e400e8 Call Trace: [] scsi_remove_device+0xe/0x88 [] scsi_forget_host+0x32/0x60 [] scsi_remove_host+0x19/0x48 [] qla2x00_remove_one+0x6f/0x8c [qla2xxx] [] qla2300_remove_one+0xa/0x10 [qla2300] [] pci_device_remove+0x1a/0x34 [] device_release_driver+0x46/0x58 [] driver_detach+0x1d/0x2c [] bus_remove_driver+0x29/0x5c [] driver_unregister+0xb/0x1f [] pci_unregister_driver+0xe/0x1c [] qla2300_exit+0xa/0x10 [qla2300] [] sys_delete_module+0x141/0x174 [] sys_munmap+0x38/0x58 [] syscall_call+0x7/0xb Code: 8b 00 50 68 60 4c 2b c0 e8 24 f7 f2 ff 83 c4 18 68 68 06 00 -- Patrick Mansfield