Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757751AbYAHNc3 (ORCPT ); Tue, 8 Jan 2008 08:32:29 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755122AbYAHNcT (ORCPT ); Tue, 8 Jan 2008 08:32:19 -0500 Received: from boogie.lpds.sztaki.hu ([193.224.70.237]:42246 "EHLO boogie.lpds.sztaki.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754569AbYAHNcS (ORCPT ); Tue, 8 Jan 2008 08:32:18 -0500 Date: Tue, 8 Jan 2008 14:32:16 +0100 From: Gabor Gombas To: Tejun Heo Cc: Al Viro , Dave Young , linux-kernel@vger.kernel.org, bluez-devel@lists.sourceforge.net Subject: Re: [Bluez-devel] Oops involving RFCOMM and sysfs Message-ID: <20080108133215.GA15814@boogie.lpds.sztaki.hu> References: <20071228173203.GA20690@boogie.lpds.sztaki.hu> <20080102151642.GA7273@boogie.lpds.sztaki.hu> <20080105075039.GF27894@ZenIV.linux.org.uk> <20080107141300.GB12763@boogie.lpds.sztaki.hu> <47824415.80703@gmail.com> <20080107210024.GA13537@boogie.lpds.sztaki.hu> <47834593.1000506@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <47834593.1000506@gmail.com> X-Copyright: Forwarding or publishing without permission is prohibited. Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6821 Lines: 85 On Tue, Jan 08, 2008 at 06:42:43PM +0900, Tejun Heo wrote: > Thanks. Please apply the attached patch and report the oops. Jan 8 14:23:29 twister kernel: XXX: moving /devices/virtual/tty/rfcomm0 under /devices/pci0000:00/0000:00:02.0/usb1/1-3/1-3:1.0/hci0/acl001BAFE1624D/tty Jan 8 14:23:29 twister kernel: XXX: looking up / (ffff8100bf400000) / devices Jan 8 14:23:29 twister kernel: XXX: looking up devices (ffff8100bf658cc0) / virtual Jan 8 14:23:29 twister kernel: XXX: looking up virtual (ffff8100bf417220) / tty Jan 8 14:23:29 twister kernel: XXX: looking up tty (ffff8100bb31c440) / rfcomm0 Jan 8 14:23:29 twister kernel: XXX: looking up / (ffff8100bf400000) / devices Jan 8 14:23:29 twister kernel: XXX: looking up devices (ffff8100bf658cc0) / pci0000:00 Jan 8 14:23:29 twister kernel: XXX: looking up pci0000:00 (ffff8100bf658880) / 0000:00:02.0 Jan 8 14:23:29 twister kernel: XXX: looking up 0000:00:02.0 (ffff8100bb2abcc0) / usb1 Jan 8 14:23:29 twister kernel: XXX: looking up usb1 (ffff8100bb306000) / 1-3 Jan 8 14:23:29 twister kernel: XXX: looking up 1-3 (ffff8100bb309220) / 1-3:1.0 Jan 8 14:23:29 twister kernel: XXX: looking up 1-3:1.0 (ffff8100bb309880) / hci0 Jan 8 14:23:29 twister kernel: XXX: looking up hci0 (ffff8100bb318aa0) / acl001BAFE1624D Jan 8 14:23:29 twister kernel: XXX: looking up acl001BAFE1624D (ffff8100b555a000) / tty Jan 8 14:23:52 twister kernel: XXX: moving /devices/pci0000:00/0000:00:02.0/usb1/1-3/1-3:1.0/hci0/acl001BAFE1624D/tty/rfcomm0 under /devices/virtual/tty Jan 8 14:23:52 twister kernel: XXX: looking up / (ffff8100bf400000) / devices Jan 8 14:23:52 twister kernel: XXX: looking up devices (ffff8100bf658cc0) / pci0000:00 Jan 8 14:23:52 twister kernel: XXX: looking up pci0000:00 (ffff8100bf658880) / 0000:00:02.0 Jan 8 14:23:52 twister kernel: XXX: looking up 0000:00:02.0 (ffff8100bb2abcc0) / usb1 Jan 8 14:23:52 twister kernel: XXX: looking up usb1 (ffff8100bb306000) / 1-3 Jan 8 14:23:52 twister kernel: XXX: looking up 1-3 (ffff8100bb309220) / 1-3:1.0 Jan 8 14:23:52 twister kernel: XXX: looking up 1-3:1.0 (ffff8100bb309880) / hci0 Jan 8 14:23:52 twister kernel: XXX: looking up hci0 (ffff8100bb318aa0) / acl001BAFE1624D Jan 8 14:23:52 twister kernel: XXX: looking up acl001BAFE1624D (0000000000000000) / Jan 8 14:23:52 twister kernel: Unable to handle kernel NULL pointer dereference at 00000000000000b8 RIP: Jan 8 14:23:52 twister kernel: [] mutex_lock+0x10/0x1d Jan 8 14:23:52 twister kernel: PGD b19b6067 PUD b1969067 PMD 0 Jan 8 14:23:52 twister kernel: Oops: 0002 [1] Jan 8 14:23:52 twister kernel: CPU 0 Jan 8 14:23:52 twister kernel: Modules linked in: binfmt_misc rfcomm l2cap nfsd auth_rpcgss exportfs ipt_REJECT xt_tcpudp ipt_LOG xt_limit iptable_filter ip_tables x_tables nfs lockd nfs_acl sunrpc fuse dm_crypt saa7134_alsa radeon hwmon_vid eeprom hci_usb bluetooth usb_storage tuner tea5767 tda8290 tuner_simple mt20xx tea5761 snd_intel8x0 sg snd_ac97_codec ac97_bus saa7134 firewire_ohci firewire_core crc_itu_t videobuf_dma_sg videobuf_core ir_kbd_i2c snd_pcm ir_common sky2 forcedeth ehci_hcd snd_timer snd_page_alloc ohci_hcd sr_mod parport_pc parport cdrom floppy Jan 8 14:23:52 twister kernel: Pid: 3228, comm: cat Not tainted 2.6.24-rc6debug-dirty #7 Jan 8 14:23:52 twister kernel: RIP: 0010:[] [] mutex_lock+0x10/0x1d Jan 8 14:23:52 twister kernel: RSP: 0018:ffff8100b19a5d08 EFLAGS: 00010246 Jan 8 14:23:52 twister kernel: RAX: 0000000000000000 RBX: 00000000000000b8 RCX: 0000000000010352 Jan 8 14:23:52 twister kernel: RDX: ffff8100b19a5fd8 RSI: 0000000000010352 RDI: 00000000000000b8 Jan 8 14:23:52 twister kernel: RBP: ffffffff80593db0 R08: 0000000000000000 R09: 0000000000000097 Jan 8 14:23:52 twister kernel: R10: 000000000000000e R11: ffffffff803103d4 R12: ffff8100ba312b90 Jan 8 14:23:52 twister kernel: R13: ffff8100bfa78d00 R14: ffff8100b1980b00 R15: ffff8100b6c6b840 Jan 8 14:23:52 twister kernel: FS: 00002b3bd213d6e0(0000) GS:ffffffff805ba000(0000) knlGS:0000000000000000 Jan 8 14:23:52 twister kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Jan 8 14:23:52 twister kernel: CR2: 00000000000000b8 CR3: 00000000b19ae000 CR4: 00000000000006e0 Jan 8 14:23:52 twister kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jan 8 14:23:52 twister kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Jan 8 14:23:52 twister kernel: Process cat (pid: 3228, threadinfo ffff8100b19a4000, task ffff8100b18d9060) Jan 8 14:23:52 twister kernel: Stack: ffff8100bfa78d00 ffffffff8028560d ffff8100b554ca28 ffffffff802ae9d5 Jan 8 14:23:52 twister kernel: ffff8100bf9f4fa0 ffff8100ba312b90 ffff8100b5326c60 ffffffff802af2de Jan 8 14:23:52 twister kernel: ffff8100b6ca4cd0 ffff8100b6ca4cd0 ffff8100bfa78d00 ffff8100b5326ba0 Jan 8 14:23:52 twister kernel: Call Trace: Jan 8 14:23:52 twister kernel: [] dput+0x26/0x103 Jan 8 14:23:52 twister kernel: [] __sysfs_get_dentry+0x5f/0xa9 Jan 8 14:23:52 twister kernel: [] sysfs_move_dir+0xae/0x247 Jan 8 14:23:52 twister kernel: [] kobject_move+0xba/0x110 Jan 8 14:23:52 twister kernel: [] device_move+0x59/0x111 Jan 8 14:23:52 twister kernel: [] :rfcomm:rfcomm_tty_close+0x2f/0x74 Jan 8 14:23:52 twister kernel: [] release_dev+0x212/0x5e2 Jan 8 14:23:52 twister kernel: [] do_page_fault+0x2ff/0x65a Jan 8 14:23:52 twister kernel: [] tty_release+0xc/0x10 Jan 8 14:23:52 twister kernel: [] __fput+0xb1/0x16f Jan 8 14:23:52 twister kernel: [] filp_close+0x5d/0x65 Jan 8 14:23:52 twister kernel: [] sys_close+0x73/0xa6 Jan 8 14:23:52 twister kernel: [] tracesys+0xdc/0xe1 Jan 8 14:23:52 twister kernel: Jan 8 14:23:52 twister kernel: Jan 8 14:23:52 twister kernel: Code: ff 0f 79 05 e8 c9 00 00 00 58 5a 5b c3 41 54 48 8d 47 08 48 Jan 8 14:23:52 twister kernel: RIP [] mutex_lock+0x10/0x1d Jan 8 14:23:52 twister kernel: RSP Jan 8 14:23:52 twister kernel: CR2: 00000000000000b8 Jan 8 14:23:52 twister kernel: ---[ end trace d7aa1b498ca58476 ]--- Gabor -- --------------------------------------------------------- MTA SZTAKI Computer and Automation Research Institute Hungarian Academy of Sciences 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