Return-Path: Message-ID: <46935C56.5060108@idlum.be> Date: Tue, 10 Jul 2007 12:15:50 +0200 From: Pierre-Yves Paulus MIME-Version: 1.0 To: BlueZ development References: <20070709093602.A2C6B58D565@mailflip16.edt02.net> In-Reply-To: <20070709093602.A2C6B58D565@mailflip16.edt02.net> Content-Type: multipart/mixed; boundary="------------060209080403090105050002" Subject: [Bluez-devel] Kernel Oops while transmitting data on several RFCOMM links Reply-To: BlueZ development List-Id: BlueZ development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: bluez-devel-bounces@lists.sourceforge.net Errors-To: bluez-devel-bounces@lists.sourceforge.net This is a multi-part message in MIME format. --------------060209080403090105050002 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Hello, I performed a test on a system with several dongles, establishing several RFCOMM links to remote devices, and transmitting data over them. At one point, there was a kernel Oops. Please find attached the relevant parte of the kernel log. Kernel on the box is 2.6.20-1. Is it a known problem which can be avoided by upgrading the kernel to a latest release? Best Regards, Pierre-Yves Paulus --------------060209080403090105050002 Content-Type: text/plain; name="kernel_crash_trimmed" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="kernel_crash_trimmed" Jul 6 15:05:49 p2a kernel: kobject_add failed for rfcomm2 with -EEXIST, don't try to register things with the same name in the same directory. Jul 6 15:05:49 p2a kernel: [] kobject_add+0x152/0x17b Jul 6 15:05:49 p2a kernel: [] kobject_set_name+0x29/0x92 Jul 6 15:05:49 p2a kernel: [] device_add+0x83/0x466 Jul 6 15:05:49 p2a kernel: [] kobject_init+0x2b/0x3b Jul 6 15:05:49 p2a kernel: [] device_create+0x78/0x97 Jul 6 15:05:49 p2a kernel: [] tty_register_device+0xb7/0xbf Jul 6 15:05:49 p2a kernel: [] hci_get_route+0xa3/0xac [bluetooth] Jul 6 15:05:49 p2a kernel: [] rfcomm_dev_ioctl+0x2ae/0x505 [rfcomm] Jul 6 15:05:49 p2a kernel: [] rfcomm_sock_ioctl+0x1e/0x2d [rfcomm] Jul 6 15:05:49 p2a kernel: [] sock_ioctl+0x1a6/0x1c5 Jul 6 15:05:49 p2a kernel: [] sock_ioctl+0x0/0x1c5 Jul 6 15:05:49 p2a kernel: [] do_ioctl+0x19/0x47 Jul 6 15:05:49 p2a kernel: [] vfs_ioctl+0x1e3/0x1f1 Jul 6 15:05:49 p2a kernel: [] sys_ioctl+0x4e/0x68 Jul 6 15:05:49 p2a kernel: [] syscall_call+0x7/0xb Jul 6 15:05:49 p2a kernel: ======================= Jul 6 15:06:02 p2a kernel: hci_acldata_packet: hci2 ACL packet for unknown connection handle 13 Jul 6 15:06:02 p2a kernel: hci_acldata_packet: hci2 ACL packet for unknown connection handle 13 Jul 6 15:06:06 p2a kernel: BUG: unable to handle kernel NULL pointer dereference at virtual address 0000003c Jul 6 15:06:06 p2a kernel: printing eip: Jul 6 15:06:06 p2a kernel: d0350b0c Jul 6 15:06:06 p2a kernel: *pde = 00000000 Jul 6 15:06:06 p2a kernel: Oops: 0000 [#1] Jul 6 15:06:06 p2a kernel: Modules linked in: rfcomm l2cap button ac battery ipv6 dm_snapshot dm_mirror dm_mod ks8842_pci loop evdev floppy rtc hci_usb bluetooth psmouse serio_raw snd_via82xx gameport snd_ac97_codec ac97_bus snd_pcm snd_timer snd_page_alloc snd_mpu401_uart snd_rawmidi snd_seq_device snd i2c_viapro via82cxxx_audio uart401 sound soundcore ac97_codec pcspkr via686a shpchp pci_hotplug parport_pc via_agp agpgart i2c_isa i2c_core parport reiserfs sd_mod generic via82cxxx ide_core pata_via ata_generic 8139cp 8139too mii libata scsi_mod uhci_hcd usbcore thermal processor fan Jul 6 15:06:06 p2a kernel: CPU: 0 Jul 6 15:06:06 p2a kernel: EIP: 0060:[] Not tainted VLI Jul 6 15:06:06 p2a kernel: EFLAGS: 00010296 (2.6.20-1-486 #1) Jul 6 15:06:06 p2a kernel: EIP is at rfcomm_tty_write+0x19/0x163 [rfcomm] Jul 6 15:06:06 p2a kernel: eax: 00000000 ebx: cee79000 ecx: 00000003 edx: c5a9c800 Jul 6 15:06:06 p2a kernel: esi: c2442400 edi: c5a9c800 ebp: 00000003 esp: cde29ee8 Jul 6 15:06:06 p2a kernel: ds: 007b es: 007b ss: 0068 Jul 6 15:06:06 p2a kernel: Process java (pid: 5950, ti=cde28000 task=c9188a50 task.ti=cde28000) Jul 6 15:06:06 p2a kernel: Stack: 00000000 00000003 c5a9c800 00000000 00000000 00000000 cee79000 c2442400 Jul 6 15:06:06 p2a kernel: c5a9c800 00000003 c0200f5c c5a9c800 c2674460 c2442400 00000000 c9188a50 Jul 6 15:06:06 p2a kernel: c011495b c244251c c244251c 00000003 c2442400 00000003 00000003 c01fecef Jul 6 15:06:06 p2a kernel: Call Trace: Jul 6 15:06:06 p2a kernel: [] write_chan+0x21a/0x28d Jul 6 15:06:06 p2a kernel: [] default_wake_function+0x0/0xc Jul 6 15:06:06 p2a kernel: [] tty_write+0x147/0x1cc Jul 6 15:06:06 p2a kernel: [] write_chan+0x0/0x28d Jul 6 15:06:06 p2a kernel: [] tty_write+0x0/0x1cc Jul 6 15:06:06 p2a kernel: [] vfs_write+0xab/0x158 Jul 6 15:06:06 p2a kernel: [] sys_write+0x43/0x69 Jul 6 15:06:06 p2a kernel: [] syscall_call+0x7/0xb Jul 6 15:06:06 p2a kernel: ======================= Jul 6 15:06:06 p2a kernel: Code: 5e e9 8e f5 ff ff 5a 5b 5e e9 4b e5 ea ef 58 5b 5e c3 55 57 56 53 83 ec 18 89 54 24 08 89 4c 24 04 8b 80 40 01 00 00 89 44 24 0c <8b> 40 3c 89 44 24 10 31 ff c7 44 24 14 00 00 00 00 e9 ee 00 00 Jul 6 15:06:06 p2a kernel: EIP: [] rfcomm_tty_write+0x19/0x163 [rfcomm] SS:ESP 0068:cde29ee8 Jul 6 15:06:09 p2a kernel: <0>invalid opcode: 0000 [#2] Jul 6 15:06:09 p2a kernel: Modules linked in: rfcomm l2cap button ac battery ipv6 dm_snapshot dm_mirror dm_mod ks8842_pci loop evdev floppy rtc hci_usb bluetooth psmouse serio_raw snd_via82xx gameport snd_ac97_codec ac97_bus snd_pcm snd_timer snd_page_alloc snd_mpu401_uart snd_rawmidi snd_seq_device snd i2c_viapro via82cxxx_audio uart401 sound soundcore ac97_codec pcspkr via686a shpchp pci_hotplug parport_pc via_agp agpgart i2c_isa i2c_core parport reiserfs sd_mod generic via82cxxx ide_core pata_via ata_generic 8139cp 8139too mii libata scsi_mod uhci_hcd usbcore thermal processor fan Jul 6 15:06:09 p2a kernel: CPU: 0 Jul 6 15:06:09 p2a kernel: EIP: 0060:[] Not tainted VLI Jul 6 15:06:09 p2a kernel: EFLAGS: 00010082 (2.6.20-1-486 #1) Jul 6 15:06:09 p2a kernel: EIP is at 0xc9188a64 Jul 6 15:06:09 p2a kernel: eax: cde29f20 ebx: cde29f20 ecx: 00000000 edx: 00000001 Jul 6 15:06:09 p2a kernel: esi: cde29f78 edi: 00000001 ebp: cf305f28 esp: cf305f09 Jul 6 15:06:09 p2a kernel: ds: 007b es: 007b ss: 0068 Jul 6 15:06:09 p2a kernel: Process events/0 (pid: 3, ti=cf304000 task=cf347030 task.ti=cf304000) Jul 6 15:06:09 p2a kernel: Stack: 00c0113b 01000000 1c000000 2cc24425 00cde29f 86000000 1c000002 44c24425 Jul 6 15:06:09 p2a kernel: 99cf305f 00c0114a 00000000 44000000 46c24425 00000002 0cc24424 f6c24424 Jul 6 15:06:09 p2a kernel: 00c01fe9 00000000 00000000 05000000 2c000000 46c24425 c0000002 f1cf3546 Jul 6 15:06:09 p2a kernel: Call Trace: Jul 6 15:06:09 p2a kernel: ======================= Jul 6 15:06:09 p2a kernel: Code: 8a 18 c9 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 80 00 00 00 00 80 e2 cd 00 00 00 00 44 00 40 00 00 00 00 00 ff ff ff 80 00 00 00 7d 00 00 00 78 00 00 00 7d 00 00 00 00 Jul 6 15:06:09 p2a kernel: EIP: [] 0xc9188a64 SS:ESP 0068:cf305f09 Jul 6 15:06:29 p2a kernel: <1>BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000 Jul 6 15:06:29 p2a kernel: printing eip: Jul 6 15:06:29 p2a kernel: c0184d46 Jul 6 15:06:29 p2a kernel: *pde = 00000000 Jul 6 15:06:29 p2a kernel: Oops: 0000 [#3] Jul 6 15:06:29 p2a kernel: Modules linked in: rfcomm l2cap button ac battery ipv6 dm_snapshot dm_mirror dm_mod ks8842_pci loop evdev floppy rtc hci_usb bluetooth psmouse serio_raw snd_via82xx gameport snd_ac97_codec ac97_bus snd_pcm snd_timer snd_page_alloc snd_mpu401_uart snd_rawmidi snd_seq_device snd i2c_viapro via82cxxx_audio uart401 sound soundcore ac97_codec pcspkr via686a shpchp pci_hotplug parport_pc via_agp agpgart i2c_isa i2c_core parport reiserfs sd_mod generic via82cxxx ide_core pata_via ata_generic 8139cp 8139too mii libata scsi_mod uhci_hcd usbcore thermal processor fan Jul 6 15:06:29 p2a kernel: CPU: 0 Jul 6 15:06:29 p2a kernel: EIP: 0060:[] Not tainted VLI Jul 6 15:06:29 p2a kernel: EFLAGS: 00010286 (2.6.20-1-486 #1) Jul 6 15:06:29 p2a kernel: EIP is at sysfs_follow_link+0xac/0x17f Jul 6 15:06:29 p2a kernel: eax: 00000000 ebx: 00000003 ecx: ffffffff edx: c271ecf0 Jul 6 15:06:29 p2a kernel: esi: 00000001 edi: 00000000 ebp: c271ecf0 esp: c635deb4 Jul 6 15:06:29 p2a kernel: ds: 007b es: 007b ss: 0068 Jul 6 15:06:29 p2a kernel: Process udevd (pid: 7703, ti=c635c000 task=c959e070 task.ti=c635c000) Jul 6 15:06:29 p2a kernel: Stack: c635dedc cf29b000 c6457868 00000000 c030fbe0 00000200 cef10d34 bfcac19c Jul 6 15:06:29 p2a kernel: c0155dbe 00000004 c0112f44 00000000 00000000 c635dfb8 c8602954 c8602920 Jul 6 15:06:29 p2a kernel: 00000000 00000000 cf3c3eb0 24730972 468e5a75 c011aa65 00000001 cf7e7400 Jul 6 15:06:29 p2a kernel: Call Trace: Jul 6 15:06:31 p2a kernel: [] generic_readlink+0x27/0x6e Jul 6 15:06:31 p2a kernel: [] do_page_fault+0x28d/0x551 Jul 6 15:06:31 p2a kernel: [] current_fs_time+0x45/0x50 Jul 6 15:06:31 p2a kernel: [] touch_atime+0xa2/0xd6 Jul 6 15:06:31 p2a kernel: [] sys_readlinkat+0x84/0x9f Jul 6 15:06:31 p2a kernel: [] do_page_fault+0x28d/0x551 Jul 6 15:06:31 p2a kernel: [] sys_readlink+0x27/0x2b Jul 6 15:06:31 p2a kernel: [] syscall_call+0x7/0xb Jul 6 15:06:31 p2a kernel: ======================= Jul 6 15:06:31 p2a kernel: Code: e9 c0 00 00 00 b8 40 fb 30 c0 e8 42 3a fa ff 8b 44 24 08 31 db 43 8b 40 24 85 c0 75 f8 89 ea be 01 00 00 00 8b 3a 31 c0 83 c9 ff ae f7 d1 49 8d 74 0e 01 8b 52 24 85 d2 75 e9 8d 04 5b 8d 4c Jul 6 15:06:31 p2a kernel: EIP: [] sysfs_follow_link+0xac/0x17f SS:ESP 0068:c635deb4 Jul 6 15:06:31 p2a kernel: <3>hci_acldata_packet: hci2 ACL packet for unknown connection handle 11 Jul 6 15:06:31 p2a kernel: hci_acldata_packet: hci2 ACL packet for unknown connection handle 11 Jul 6 15:06:31 p2a kernel: hci_acldata_packet: hci2 ACL packet for unknown connection handle 11 Jul 6 15:06:31 p2a kernel: l2cap_recv_acldata: Unexpected continuation frame (len 0) Jul 6 15:06:48 p2a kernel: hci_acldata_packet: hci2 ACL packet for unknown connection handle 11 Jul 6 15:06:48 p2a kernel: hci_acldata_packet: hci2 ACL packet for unknown connection handle 11 --------------060209080403090105050002 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. 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