Public bug reported:
Started Twinkle and placed a call. As soon as the call ended, the
system froze and the following was left in the syslog:
Feb 25 14:42:18 linux13 kernel: [ 75.666459] ------------[ cut here
]------------
Feb 25 14:42:18 linux13 kernel: [ 75.666465] WARNING: at
/build/buildd/linux-lts-quantal-3.5.0/include/linux/kref.h:41
usb_get_urb+0x35/0x40()
Feb 25 14:42:18 linux13 kernel: [ 75.666466] Hardware name: Precision T3600
Feb 25 14:42:18 linux13 kernel: [ 75.666477] Modules linked in:
ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat
nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack
ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables
x_tables autofs4 bnep rfcomm bluetooth parport_pc ppdev nfsd nfs lockd fscache
auth_rpcgss nfs_acl sunrpc dm_crypt snd_hda_codec_h
dmi nvidia(PO) snd_hda_codec_realtek bridge stp llc snd_usb_audio coretemp
kvm_intel kvm snd_usbmidi_lib dcdbas snd_hda_intel snd_hda_codec snd_hwdep
snd_pcm snd_page_alloc psmouse snd_seq_midi lpc_ich s
nd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device microcode snd
soundcore mei serio_raw sb_edac edac_core mac_hid lp parport btrfs zlib_deflate
libcrc32c hid_generic usbhid hid ghash_clmulni
_intel aesni_intel cryptd aes_x86_64 ahci libahci e1000e megaraid_sas r8169
Feb 25 14:42:18 linux13 kernel: [ 75.666513] Pid: 46, comm: khubd Tainted: P
O 3.5.0-46-generic #70~precise1-Ubuntu
Feb 25 14:42:18 linux13 kernel: [ 75.666513] Call Trace:
Feb 25 14:42:18 linux13 kernel: [ 75.666518] [<ffffffff81052e9f>]
warn_slowpath_common+0x7f/0xc0
Feb 25 14:42:18 linux13 kernel: [ 75.666519] [<ffffffff81052efa>]
warn_slowpath_null+0x1a/0x20
Feb 25 14:42:18 linux13 kernel: [ 75.666521] [<ffffffff814c1f35>]
usb_get_urb+0x35/0x40
Feb 25 14:42:18 linux13 kernel: [ 75.666522] [<ffffffff814c1318>]
usb_hcd_flush_endpoint+0x108/0x140
Feb 25 14:42:18 linux13 kernel: [ 75.666524] [<ffffffff814c3cee>]
usb_disable_endpoint+0x5e/0x90
Feb 25 14:42:18 linux13 kernel: [ 75.666526] [<ffffffff814c3d66>]
usb_disable_interface+0x46/0x60
Feb 25 14:42:18 linux13 kernel: [ 75.666540] [<ffffffff814c6505>]
usb_unbind_interface+0x1a5/0x1b0
Feb 25 14:42:18 linux13 kernel: [ 75.666543] [<ffffffff8142bcbc>]
__device_release_driver+0x7c/0xe0
Feb 25 14:42:18 linux13 kernel: [ 75.666545] [<ffffffff8142bd4c>]
device_release_driver+0x2c/0x40
Feb 25 14:42:18 linux13 kernel: [ 75.666546] [<ffffffff8142b751>]
bus_remove_device+0xe1/0x120
Feb 25 14:42:18 linux13 kernel: [ 75.666549] [<ffffffff81428f60>]
device_del+0x120/0x1b0
Feb 25 14:42:18 linux13 kernel: [ 75.666550] [<ffffffff814c3e2f>]
usb_disable_device+0xaf/0x200
Feb 25 14:42:18 linux13 kernel: [ 75.666552] [<ffffffff814bc650>]
usb_disconnect+0x90/0x120
Feb 25 14:42:18 linux13 kernel: [ 75.666553] [<ffffffff814bd8fb>]
hub_port_connect_change+0xab/0x700
Feb 25 14:42:18 linux13 kernel: [ 75.666555] [<ffffffff814be189>]
hub_events+0x239/0x620
Feb 25 14:42:18 linux13 kernel: [ 75.666556] [<ffffffff814be5a5>]
hub_thread+0x35/0x1a0
Feb 25 14:42:18 linux13 kernel: [ 75.666559] [<ffffffff81078770>] ?
add_wait_queue+0x60/0x60
Feb 25 14:42:18 linux13 kernel: [ 75.666560] [<ffffffff814be570>] ?
hub_events+0x620/0x620
Feb 25 14:42:18 linux13 kernel: [ 75.666562] [<ffffffff81077e93>]
kthread+0x93/0xa0
Feb 25 14:42:18 linux13 kernel: [ 75.666564] [<ffffffff816a9724>]
kernel_thread_helper+0x4/0x10
Feb 25 14:42:18 linux13 kernel: [ 75.666566] [<ffffffff81077e00>] ?
flush_kthread_worker+0xb0/0xb0
Feb 25 14:42:18 linux13 kernel: [ 75.666567] [<ffffffff816a9720>] ?
gs_change+0x13/0x13
Feb 25 14:42:18 linux13 kernel: [ 75.666568] ---[ end trace 43f0bea172ced126
]---
Feb 25 14:42:18 linux13 kernel: [ 75.666572] BUG: unable to handle kernel
NULL pointer dereference at 0000000000000038
Feb 25 14:42:18 linux13 kernel: [ 75.666573] IP: [<ffffffff814bfd9d>]
unlink1+0xd/0x30
Feb 25 14:42:18 linux13 kernel: [ 75.666575] PGD 0
Feb 25 14:42:18 linux13 kernel: [ 75.666577] Oops: 0000 [#1] SMP
Feb 25 14:42:18 linux13 kernel: [ 75.666579] CPU 0
Feb 25 14:42:18 linux13 kernel: [ 75.666579] Modules linked in:
ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat
nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack
ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables
x_tables autofs4 bnep rfcomm bluetooth parport_pc ppdev nfsd nfs lockd fscache
auth_rpcgss nfs_acl sunrpc dm_crypt snd_hda_codec_h
dmi nvidia(PO) snd_hda_codec_realtek bridge stp llc snd_usb_audio coretemp
kvm_intel kvm snd_usbmidi_lib dcdbas snd_hda_intel snd_hda_codec snd_hwdep
snd_pcm snd_page_alloc psmouse snd_seq_midi lpc_ich s
nd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device microcode snd
soundcore mei serio_raw sb_edac edac_core mac_hid lp parport btrfs zlib_deflate
libcrc32c hid_generic usbhid hid ghash_clmulni
_intel aesni_intel cryptd aes_x86_64 ahci libahci e1000e megaraid_sas r8169
Feb 25 14:42:18 linux13 kernel: [ 75.666604]
Feb 25 14:42:18 linux13 kernel: [ 75.666605] Pid: 46, comm: khubd Tainted: P
W O 3.5.0-46-generic #70~precise1-Ubuntu Dell Inc. Precision T3600/08HPGT
Feb 25 14:42:18 linux13 kernel: [ 75.666606] RIP: 0010:[<ffffffff814bfd9d>]
[<ffffffff814bfd9d>] unlink1+0xd/0x30
Feb 25 14:42:18 linux13 kernel: [ 75.666608] RSP: 0018:ffff880437a99b20
EFLAGS: 00010006
Feb 25 14:42:18 linux13 kernel: [ 75.666609] RAX: 0000000000000000 RBX:
ffff88041b438800 RCX: ffffffff81e0dc00
Feb 25 14:42:18 linux13 kernel: [ 75.666610] RDX: 00000000ffffff94 RSI:
ffff88041b438800 RDI: ffff880433591000
Feb 25 14:42:18 linux13 kernel: [ 75.666611] RBP: ffff880437a99b20 R08:
000000000000000a R09: 0000000000000458
Feb 25 14:42:18 linux13 kernel: [ 75.666612] R10: 0000000000000000 R11:
0000000000029214 R12: ffff8804335dc840
Feb 25 14:42:18 linux13 kernel: [ 75.666613] R13: ffff8804335dc850 R14:
ffffffff81f27c0c R15: ffff880433591000
Feb 25 14:42:18 linux13 kernel: [ 75.666614] FS: 0000000000000000(0000)
GS:ffff88043f200000(0000) knlGS:0000000000000000
Feb 25 14:42:18 linux13 kernel: [ 75.666615] CS: 0010 DS: 0000 ES: 0000 CR0:
000000008005003b
Feb 25 14:42:18 linux13 kernel: [ 75.666616] CR2: 0000000000000038 CR3:
0000000001c0b000 CR4: 00000000000407f0
Feb 25 14:42:18 linux13 kernel: [ 75.666616] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Feb 25 14:42:18 linux13 kernel: [ 75.666617] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Feb 25 14:42:18 linux13 kernel: [ 75.666618] Process khubd (pid: 46,
threadinfo ffff880437a98000, task ffff880437a91700)
Feb 25 14:42:18 linux13 kernel: [ 75.666619] Stack:
Feb 25 14:42:18 linux13 kernel: [ 75.666620] ffff880437a99b70
ffffffff814c1332 ffff8804362dc540 ffff880437a99b70
Feb 25 14:42:18 linux13 kernel: [ 75.666622] ffff880437a99bc0
ffff8804335cb800 ffff8804335dc840 0000000000000000
Feb 25 14:42:18 linux13 kernel: [ 75.666623] 0000000000000000
0000000000000000 ffff880437a99ba0 ffffffff814c3cee
Feb 25 14:42:18 linux13 kernel: [ 75.666625] Call Trace:
Feb 25 14:42:18 linux13 kernel: [ 75.666627] [<ffffffff814c1332>]
usb_hcd_flush_endpoint+0x122/0x140
Feb 25 14:42:18 linux13 kernel: [ 75.666629] [<ffffffff814c3cee>]
usb_disable_endpoint+0x5e/0x90
Feb 25 14:42:18 linux13 kernel: [ 75.666630] [<ffffffff814c3d66>]
usb_disable_interface+0x46/0x60
Feb 25 14:42:18 linux13 kernel: [ 75.666633] [<ffffffff814c6505>]
usb_unbind_interface+0x1a5/0x1b0
Feb 25 14:42:18 linux13 kernel: [ 75.666634] [<ffffffff8142bcbc>]
__device_release_driver+0x7c/0xe0
Feb 25 14:42:18 linux13 kernel: [ 75.666636] [<ffffffff8142bd4c>]
device_release_driver+0x2c/0x40
Feb 25 14:42:18 linux13 kernel: [ 75.666637] [<ffffffff8142b751>]
bus_remove_device+0xe1/0x120
Feb 25 14:42:18 linux13 kernel: [ 75.666639] [<ffffffff81428f60>]
device_del+0x120/0x1b0
Feb 25 14:42:18 linux13 kernel: [ 75.666641] [<ffffffff814c3e2f>]
usb_disable_device+0xaf/0x200
Feb 25 14:42:18 linux13 kernel: [ 75.666642] [<ffffffff814bc650>]
usb_disconnect+0x90/0x120
Feb 25 14:42:18 linux13 kernel: [ 75.666643] [<ffffffff814bd8fb>]
hub_port_connect_change+0xab/0x700
Feb 25 14:42:18 linux13 kernel: [ 75.666645] [<ffffffff814be189>]
hub_events+0x239/0x620
Feb 25 14:42:18 linux13 kernel: [ 75.666646] [<ffffffff814be5a5>]
hub_thread+0x35/0x1a0
Feb 25 14:42:18 linux13 kernel: [ 75.666648] [<ffffffff81078770>] ?
add_wait_queue+0x60/0x60
Feb 25 14:42:18 linux13 kernel: [ 75.666649] [<ffffffff814be570>] ?
hub_events+0x620/0x620
Feb 25 14:42:18 linux13 kernel: [ 75.666650] [<ffffffff81077e93>]
kthread+0x93/0xa0
Feb 25 14:42:18 linux13 kernel: [ 75.666652] [<ffffffff816a9724>]
kernel_thread_helper+0x4/0x10
Feb 25 14:42:18 linux13 kernel: [ 75.666654] [<ffffffff81077e00>] ?
flush_kthread_worker+0xb0/0xb0
Feb 25 14:42:18 linux13 kernel: [ 75.666655] [<ffffffff816a9720>] ?
gs_change+0x13/0x13
Feb 25 14:42:18 linux13 kernel: [ 75.666655] Code: 44 89 fa 48 89 de e8 23 fe
ff ff 48 c7 c7 08 7c f2 81 e8 47 fe 1d 00 e9 77 ff ff ff 66 90 55 48 89 e5 66
66 66 66 90 48 8b 46 48 <48> 83 78 38 00 74 0c 48 8b 87 20 01 00 00 ff 50 68 5d
c3 e8 cb
Feb 25 14:42:18 linux13 kernel: [ 75.666673] RIP [<ffffffff814bfd9d>]
unlink1+0xd/0x30
Feb 25 14:42:18 linux13 kernel: [ 75.666675] RSP <ffff880437a99b20>
Feb 25 14:42:18 linux13 kernel: [ 75.666675] CR2: 0000000000000038
Feb 25 14:42:18 linux13 kernel: [ 75.666677] ---[ end trace 43f0bea172ced127
]---
Feb 25 14:42:32 linux13 kernel: [ 89.768413] ------------[ cut here
]------------
Feb 25 14:42:32 linux13 kernel: [ 89.768432] WARNING: at
/build/buildd/linux-lts-quantal-3.5.0/kernel/rcutree.c:1870
__call_rcu+0x178/0x1d0()
Feb 25 14:42:32 linux13 kernel: [ 89.768435] Hardware name: Precision T3600
Feb 25 14:42:32 linux13 kernel: [ 89.768437] Modules linked in:
ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat
nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT
xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ip_tables x_tables autofs4
bnep rfcomm bluetooth parport_pc ppdev nfsd nfs lockd fscache auth_rpcgss
nfs_acl sunrpc dm_crypt snd_hda_codec_hdmi nvidia(PO) snd_hda_codec_realtek
bridge stp llc snd_usb_audio coretemp kvm_intel kvm snd_usbmidi_lib dcdbas
snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_page_alloc psmouse
snd_seq_midi lpc_ich snd_rawmidi snd_seq_midi_event snd_seq snd_timer
snd_seq_device microcode snd soundcore mei serio_raw sb_edac edac_core mac_hid
lp parport btrfs zlib_deflate libcrc32c hid_generic usbhid hid
ghash_clmulni_intel aesni_intel cryptd aes_x86_64 ahci libahci e1000e
megaraid_sas r8169
Feb 25 14:42:32 linux13 kernel: [ 89.768537] Pid: 3513, comm: gpgv Tainted: P
D W O 3.5.0-46-generic #70~precise1-Ubuntu
Feb 25 14:42:32 linux13 kernel: [ 89.768539] Call Trace:
Feb 25 14:42:32 linux13 kernel: [ 89.768549] [<ffffffff81052e9f>]
warn_slowpath_common+0x7f/0xc0
Feb 25 14:42:32 linux13 kernel: [ 89.768555] [<ffffffff81143fa1>] ?
kzfree+0x31/0x40
Feb 25 14:42:32 linux13 kernel: [ 89.768564] [<ffffffff8118a3b0>] ?
file_sb_list_del+0x50/0x50
Feb 25 14:42:32 linux13 kernel: [ 89.768568] [<ffffffff81052efa>]
warn_slowpath_null+0x1a/0x20
Feb 25 14:42:32 linux13 kernel: [ 89.768574] [<ffffffff810eb7c8>]
__call_rcu+0x178/0x1d0
Feb 25 14:42:32 linux13 kernel: [ 89.768580] [<ffffffff810eb877>]
call_rcu_sched+0x17/0x20
Feb 25 14:42:32 linux13 kernel: [ 89.768585] [<ffffffff8118a568>]
__fput+0x178/0x240
Feb 25 14:42:32 linux13 kernel: [ 89.768591] [<ffffffff8118a655>]
fput+0x25/0x30
Feb 25 14:42:32 linux13 kernel: [ 89.768596] [<ffffffff81155205>]
remove_vma+0x45/0x90
Feb 25 14:42:32 linux13 kernel: [ 89.768601] [<ffffffff81157ab5>]
exit_mmap+0xe5/0x150
Feb 25 14:42:32 linux13 kernel: [ 89.768609] [<ffffffff81050bea>]
mmput.part.20+0x4a/0x120
Feb 25 14:42:32 linux13 kernel: [ 89.768614] [<ffffffff81050ce9>]
mmput+0x29/0x30
Feb 25 14:42:32 linux13 kernel: [ 89.768620] [<ffffffff810591ea>]
exit_mm+0x10a/0x130
Feb 25 14:42:32 linux13 kernel: [ 89.768625] [<ffffffff810ef865>] ?
taskstats_exit+0x45/0x240
Feb 25 14:42:32 linux13 kernel: [ 89.768633] [<ffffffff8169fec5>] ?
_raw_spin_lock_irq+0x15/0x20
Feb 25 14:42:32 linux13 kernel: [ 89.768638] [<ffffffff81059381>]
do_exit+0x171/0x480
Feb 25 14:42:32 linux13 kernel: [ 89.768644] [<ffffffff81189540>] ?
vfs_write+0x110/0x180
Feb 25 14:42:32 linux13 kernel: [ 89.768649] [<ffffffff81059834>]
do_group_exit+0x44/0xa0
Feb 25 14:42:32 linux13 kernel: [ 89.768655] [<ffffffff810598a7>]
sys_exit_group+0x17/0x20
Feb 25 14:42:32 linux13 kernel: [ 89.768661] [<ffffffff816a8429>]
system_call_fastpath+0x16/0x1b
Feb 25 14:42:32 linux13 kernel: [ 89.768665] ---[ end trace 43f0bea172ced128
]---
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.5.0-46-generic 3.5.0-46.70~precise1
ProcVersionSignature: Ubuntu 3.5.0-46.70~precise1-generic 3.5.7.27
Uname: Linux 3.5.0-46-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: amd64
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xef420000 irq 85'
Mixer name : 'Realtek ALC269VB'
Components : 'HDA:10ec0269,10280497,00100100'
Controls : 27
Simple ctrls : 14
Card1.Amixer.info:
Card hw:1 'NVidia'/'HDA NVidia at 0xef080000 irq 36'
Mixer name : 'Nvidia GPU 1c HDMI/DP'
Components : 'HDA:10de001c,10de094e,00100100'
Controls : 12
Simple ctrls : 2
Date: Thu Feb 27 14:51:38 2014
HibernationDevice: RESUME=UUID=6aa9cad7-8a99-4ddc-8d7f-a3aae0235041
MachineType: Dell Inc. Precision T3600
MarkForUpload: True
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LC_COLLATE=C
SHELL=/bin/tcsh
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.5.0-46-generic
root=/dev/mapper/vg00-root ro quiet splash
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-3.5.0-46-generic N/A
linux-backports-modules-3.5.0-46-generic N/A
linux-firmware 1.79.9
RfKill:
SourcePackage: linux-lts-quantal
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/08/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.name: 08HPGT
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 7
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA07:bd11/08/2012:svnDellInc.:pnPrecisionT3600:pvr01:rvnDellInc.:rn08HPGT:rvrA01:cvnDellInc.:ct7:cvr:
dmi.product.name: Precision T3600
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.
** Affects: linux-lts-quantal (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise qa-kernel-lts-testing
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https://bugs.launchpad.net/bugs/1285842
Title:
Ending call in Twinkle causes system to crash
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