From: Pierre-Yves Paulus <py@idlum.be>
To: BlueZ development <bluez-devel@lists.sourceforge.net>
Subject: [Bluez-devel] Kernel Oops while transmitting data on several RFCOMM links
Date: Tue, 10 Jul 2007 12:15:50 +0200 [thread overview]
Message-ID: <46935C56.5060108@idlum.be> (raw)
In-Reply-To: <20070709093602.A2C6B58D565@mailflip16.edt02.net>
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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
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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: [<c01b698b>] kobject_add+0x152/0x17b
Jul 6 15:05:49 p2a kernel: [<c01b6b19>] kobject_set_name+0x29/0x92
Jul 6 15:05:49 p2a kernel: [<c02131c9>] device_add+0x83/0x466
Jul 6 15:05:49 p2a kernel: [<c01b6a01>] kobject_init+0x2b/0x3b
Jul 6 15:05:49 p2a kernel: [<c0213634>] device_create+0x78/0x97
Jul 6 15:05:49 p2a kernel: [<c01fdbbc>] tty_register_device+0xb7/0xbf
Jul 6 15:05:49 p2a kernel: [<d02a57f4>] hci_get_route+0xa3/0xac [bluetooth]
Jul 6 15:05:49 p2a kernel: [<d03506d4>] rfcomm_dev_ioctl+0x2ae/0x505 [rfcomm]
Jul 6 15:05:49 p2a kernel: [<d034f214>] rfcomm_sock_ioctl+0x1e/0x2d [rfcomm]
Jul 6 15:05:49 p2a kernel: [<c0230b70>] sock_ioctl+0x1a6/0x1c5
Jul 6 15:05:49 p2a kernel: [<c02309ca>] sock_ioctl+0x0/0x1c5
Jul 6 15:05:49 p2a kernel: [<c0159b4d>] do_ioctl+0x19/0x47
Jul 6 15:05:49 p2a kernel: [<c0159d5e>] vfs_ioctl+0x1e3/0x1f1
Jul 6 15:05:49 p2a kernel: [<c0159dba>] sys_ioctl+0x4e/0x68
Jul 6 15:05:49 p2a kernel: [<c0102b90>] 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:[<d0350b0c>] 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: [<c0200f5c>] write_chan+0x21a/0x28d
Jul 6 15:06:06 p2a kernel: [<c011495b>] default_wake_function+0x0/0xc
Jul 6 15:06:06 p2a kernel: [<c01fecef>] tty_write+0x147/0x1cc
Jul 6 15:06:06 p2a kernel: [<c0200d42>] write_chan+0x0/0x28d
Jul 6 15:06:06 p2a kernel: [<c01feba8>] tty_write+0x0/0x1cc
Jul 6 15:06:06 p2a kernel: [<c0150ce4>] vfs_write+0xab/0x158
Jul 6 15:06:06 p2a kernel: [<c0151211>] sys_write+0x43/0x69
Jul 6 15:06:06 p2a kernel: [<c0102b90>] 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: [<d0350b0c>] 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:[<c9188a64>] 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 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: [<c9188a64>] 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:[<c0184d46>] 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: [<c0155dbe>] generic_readlink+0x27/0x6e
Jul 6 15:06:31 p2a kernel: [<c0112f44>] do_page_fault+0x28d/0x551
Jul 6 15:06:31 p2a kernel: [<c011aa65>] current_fs_time+0x45/0x50
Jul 6 15:06:31 p2a kernel: [<c01601f4>] touch_atime+0xa2/0xd6
Jul 6 15:06:31 p2a kernel: [<c0152f15>] sys_readlinkat+0x84/0x9f
Jul 6 15:06:31 p2a kernel: [<c0112f44>] do_page_fault+0x28d/0x551
Jul 6 15:06:31 p2a kernel: [<c0152f57>] sys_readlink+0x27/0x2b
Jul 6 15:06:31 p2a kernel: [<c0102b90>] 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 <f2> 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: [<c0184d46>] 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
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next parent reply other threads:[~2007-07-10 10:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20070709093602.A2C6B58D565@mailflip16.edt02.net>
2007-07-10 10:15 ` Pierre-Yves Paulus [this message]
2007-07-10 11:54 ` [Bluez-devel] Kernel Oops while transmitting data on several RFCOMMlinks Williams, Richard
2007-07-11 9:36 ` Pierre-Yves Paulus
2007-07-26 13:55 ` Pierre-Yves Paulus
2007-07-26 14:30 ` Marcel Holtmann
2007-09-14 17:04 ` Pierre-Yves Paulus
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