Package: src:linux Version: 3.16.7-ckt2-1 Severity: normal under conditions i can not narrow down further[1], all processes that try to access a given mounted btrfs file system freeze. this affects even processes like `ps u` called by a user not at home in the affected file system inside the first read to an opened /proc/8119/cmdline file.
for recovery, i did succede in logging in on the console as another user, but
that didn't help much in enumerating my currently open processes. (going
through the workspaces on my user's running X session did work, however, as
X and i3wm seem not to access the file system a lot).
the output of dmesg is attached, the relevant section seems to be:
[981640.274876] INFO: task btrfs-transacti:5427 blocked for more than 120
seconds.
[981640.274886] Tainted: G O 3.16.0-4-amd64 #1
[981640.274889] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[981640.274892] btrfs-transacti D ffff8800d5a699c8 0 5427 2 0x00000000
[981640.274902] ffff8800d5a69570 0000000000000046 0000000000013280
ffff8800c92f3fd8
[981640.274908] 0000000000013280 ffff8800d5a69570 ffff88012aa3bb40
ffff88012aa3bbb0
[981640.274913] ffff88012aa3b2d0 ffff88012aa3bb40 ffff8800d5a69570
ffff8800d5a69570
[981640.274919] Call Trace:
[981640.274994] [<ffffffffa026c335>] ? wait_for_commit.isra.15+0x35/0x60
[btrfs]
[981640.275003] [<ffffffff810a5940>] ? prepare_to_wait_event+0xf0/0xf0
[981640.275044] [<ffffffffa026d095>] ? btrfs_commit_transaction+0x1a5/0x9c0
[btrfs]
[981640.275077] [<ffffffffa026d940>] ? start_transaction+0x90/0x560 [btrfs]
[981640.275112] [<ffffffffa0268efd>] ? transaction_kthread+0x1ad/0x240 [btrfs]
[981640.275144] [<ffffffffa0268d50>] ? btrfs_cleanup_transaction+0x530/0x530
[btrfs]
[981640.275152] [<ffffffff81085f1d>] ? kthread+0xbd/0xe0
[981640.275159] [<ffffffff81085e60>] ? kthread_create_on_node+0x180/0x180
[981640.275166] [<ffffffff8150d27c>] ? ret_from_fork+0x7c/0xb0
[981640.275172] [<ffffffff81085e60>] ? kthread_create_on_node+0x180/0x180
at no point since startup of the system have btrfs devices been added,
removed, or `btrfs send` been invoked.
please let me know if i should provide any other log files.
(sorry for not reporting this from the original kernel, i took notes in
the crashed situation and rebooted into the kernel that has been
installed at some point in time, but preserved the dmesg output; the
reported linux version and the linux version given below should match
the setup from back then, though.)
best regards
chrysn
[1] for sake of completeness, i'll try anyway: logged in as chrysn on an x
session, i was running epiphany, had an upload dialog open, entered a file name
(which in hindsight was probably nonexistent), pressed return and the dialog
froze, along with everything else.
-- Package-specific info:
** Version:
Linux version 3.16.0-4-amd64 (debian-kernel@lists.debian.org) (gcc version
4.8.3 (Debian 4.8.3-16) ) #1 SMP Debian 3.16.7-ckt2-1 (2014-12-08)
** Command line:
BOOT_IMAGE=/vmlinuz-3.16.0-4-amd64 root=/dev/mapper/root ro
rootflags=subvol=debian-sid-root quiet thinkpad_acpi.fan_control=1
** Tainted: O (4096)
* Out-of-tree module has been loaded.
** Model information
sys_vendor: LENOVO
product_name: 20CD0035GE
product_version: ThinkPad S1 Yoga
chassis_vendor: LENOVO
chassis_version: Not Available
bios_vendor: LENOVO
bios_version: GQET34WW (1.14 )
board_vendor: LENOVO
board_name: 20CD0035GE
board_version: SDK0E50512 Std
** Loaded modules:
vboxpci(O)
vboxnetadp(O)
vboxnetflt(O)
vboxdrv(O)
pci_stub
ctr
ccm
tun
bnep
toshiba_acpi
sparse_keymap
hp_accel
lis3lv02d
input_polldev
binfmt_misc
nls_utf8
nls_cp437
vfat
fat
ext4
mbcache
jbd2
cuse
fuse
parport_pc
ppdev
lp
parport
hid_sensor_incl_3d
hid_sensor_magn_3d
hid_sensor_rotation
hid_sensor_gyro_3d
hid_sensor_als
hid_sensor_accel_3d
hid_sensor_trigger
industrialio_triggered_buffer
kfifo_buf
hid_sensor_iio_common
industrialio
uvcvideo
videobuf2_vmalloc
videobuf2_memops
videobuf2_core
v4l2_common
hid_sensor_hub
hid_multitouch
videodev
media
wacom
snd_hda_codec_conexant
joydev
snd_hda_codec_generic
snd_hda_codec_hdmi
arc4
iTCO_wdt
iTCO_vendor_support
iwlmvm
ecb
x86_pkg_temp_thermal
mac80211
btusb
bluetooth
6lowpan_iphc
intel_powerclamp
crc16
intel_rapl
snd_hda_intel
coretemp
psmouse
kvm_intel
evdev
i915
iwlwifi
drm_kms_helper
kvm
snd_hda_controller
snd_hda_codec
thinkpad_acpi
serio_raw
pcspkr
nvram
cfg80211
rfkill
drm
i2c_algo_bit
rtsx_pci_ms
efi_pstore
memstick
tpm_tis
tpm
efivars
i2c_i801
i2c_core
battery
wmi
snd_hwdep
snd_pcm
snd_timer
snd
soundcore
ac
mei_me
mei
lpc_ich
video
processor
intel_smartconnect
shpchp
button
btrfs
xor
raid6_pq
algif_skcipher
af_alg
dm_crypt
dm_mod
md_mod
sg
usbhid
hid
sd_mod
crc_t10dif
crct10dif_generic
crct10dif_pclmul
crct10dif_common
crc32_pclmul
crc32c_intel
rtsx_pci_sdmmc
mmc_core
ghash_clmulni_intel
aesni_intel
aes_x86_64
lrw
gf128mul
glue_helper
ablk_helper
cryptd
ahci
libahci
libata
xhci_hcd
scsi_mod
rtsx_pci
mfd_core
usbcore
usb_common
thermal
thermal_sys
** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation Haswell-ULT DRAM Controller
[8086:0a04] (rev 09)
Subsystem: Lenovo Device [17aa:2217]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ >SERR- <PERR- INTx-
Latency: 0
Capabilities: <access denied>
00:02.0 VGA compatible controller [0300]: Intel Corporation Haswell-ULT
Integrated Graphics Controller [8086:0a16] (rev 09) (prog-if 00 [VGA
controller])
Subsystem: Lenovo Device [17aa:2217]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 61
Region 0: Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
Region 4: I/O ports at 3000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
00:03.0 Audio device [0403]: Intel Corporation Haswell-ULT HD Audio Controller
[8086:0a0c] (rev 09)
Subsystem: Lenovo Device [17aa:2217]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 63
Region 0: Memory at f0610000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
00:14.0 USB controller [0c03]: Intel Corporation 8 Series USB xHCI HC
[8086:9c31] (rev 04) (prog-if 30 [XHCI])
Subsystem: Lenovo Device [17aa:2217]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 57
Region 0: Memory at f0600000 (64-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: xhci_hcd
00:16.0 Communication controller [0780]: Intel Corporation 8 Series HECI #0
[8086:9c3a] (rev 04)
Subsystem: Lenovo Device [17aa:2217]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 59
Region 0: Memory at f0619000 (64-bit, non-prefetchable) [size=32]
Capabilities: <access denied>
Kernel driver in use: mei_me
00:1b.0 Audio device [0403]: Intel Corporation 8 Series HD Audio Controller
[8086:9c20] (rev 04)
Subsystem: Lenovo Device [17aa:2217]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 62
Region 0: Memory at f0614000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
00:1c.0 PCI bridge [0604]: Intel Corporation 8 Series PCI Express Root Port 1
[8086:9c10] (rev e4) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
00:1c.2 PCI bridge [0604]: Intel Corporation 8 Series PCI Express Root Port 3
[8086:9c14] (rev e4) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
Memory behind bridge: f0500000-f05fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
00:1c.3 PCI bridge [0604]: Intel Corporation 8 Series PCI Express Root Port 4
[8086:9c16] (rev e4) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=05, subordinate=05, sec-latency=0
Memory behind bridge: f0400000-f04fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
00:1f.0 ISA bridge [0601]: Intel Corporation 8 Series LPC Controller
[8086:9c43] (rev 04)
Subsystem: Lenovo Device [17aa:2217]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Capabilities: <access denied>
Kernel driver in use: lpc_ich
00:1f.2 SATA controller [0106]: Intel Corporation 8 Series SATA Controller 1
[AHCI mode] [8086:9c03] (rev 04) (prog-if 01 [AHCI 1.0])
Subsystem: Lenovo Device [17aa:2217]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 58
Region 0: I/O ports at 3088 [size=8]
Region 1: I/O ports at 3094 [size=4]
Region 2: I/O ports at 3080 [size=8]
Region 3: I/O ports at 3090 [size=4]
Region 4: I/O ports at 3060 [size=32]
Region 5: Memory at f061c000 (32-bit, non-prefetchable) [size=2K]
Capabilities: <access denied>
Kernel driver in use: ahci
00:1f.3 SMBus [0c05]: Intel Corporation 8 Series SMBus Controller [8086:9c22]
(rev 04)
Subsystem: Lenovo Device [17aa:2217]
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin C routed to IRQ 18
Region 0: Memory at f0618000 (64-bit, non-prefetchable) [size=256]
Region 4: I/O ports at efa0 [size=32]
04:00.0 Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b2]
(rev 83)
Subsystem: Intel Corporation Dual Band Wireless-AC 7260 [8086:4270]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 60
Region 0: Memory at f0500000 (64-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>
Kernel driver in use: iwlwifi
05:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5227 PCI
Express Card Reader [10ec:5227] (rev 01)
Subsystem: Lenovo Device [17aa:2217]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 56
Region 0: Memory at f0400000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: rtsx_pci
** USB devices:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 006: ID 056a:00ec Wacom Co., Ltd
Bus 001 Device 005: ID 0483:91d1 STMicroelectronics
Bus 001 Device 004: ID 0bda:5720 Realtek Semiconductor Corp.
Bus 001 Device 003: ID 04f3:0254 Elan Microelectronics Corp.
Bus 001 Device 002: ID 8087:07dc Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
-- System Information:
Debian Release: 8.0
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)
Versions of packages linux-image-3.16.0-4-amd64 depends on:
ii debconf [debconf-2.0] 1.5.55
ii initramfs-tools [linux-initramfs-tool] 0.118
ii kmod 18-3
ii linux-base 3.5
Versions of packages linux-image-3.16.0-4-amd64 recommends:
ii firmware-linux-free 3.3
ii irqbalance 1.0.6-3
Versions of packages linux-image-3.16.0-4-amd64 suggests:
pn debian-kernel-handbook <none>
ii extlinux 3:6.03+dfsg-5
ii grub-efi 2.02~beta2-20
ii linux-doc-3.16 3.16.7-ckt4-1
Versions of packages linux-image-3.16.0-4-amd64 is related to:
pn firmware-atheros <none>
pn firmware-bnx2 <none>
pn firmware-bnx2x <none>
pn firmware-brcm80211 <none>
pn firmware-intelwimax <none>
pn firmware-ipw2x00 <none>
pn firmware-ivtv <none>
ii firmware-iwlwifi 0.43
pn firmware-libertas <none>
pn firmware-linux <none>
ii firmware-linux-nonfree 0.43
pn firmware-myricom <none>
pn firmware-netxen <none>
pn firmware-qlogic <none>
pn firmware-ralink <none>
pn firmware-realtek <none>
pn xen-hypervisor <none>
-- debconf information:
linux-image-3.16.0-4-amd64/postinst/mips-initrd-3.16.0-4-amd64:
linux-image-3.16.0-4-amd64/prerm/removing-running-kernel-3.16.0-4-amd64: true
linux-image-3.16.0-4-amd64/postinst/depmod-error-initrd-3.16.0-4-amd64: false
dmesg.out.gz
Description: application/gzip
signature.asc
Description: Digital signature
