Public bug reported:
[ 1692.816788] INFO: task sync:3848 blocked for more than 120 seconds.
[ 1692.816799] Not tainted 4.8.0-26-generic #28-Ubuntu
[ 1692.816803] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 1692.816806] sync D ffff9b1402333db8 0 3848 2725 0x00000000
[ 1692.816818] ffff9b1402333db8 00ffffffac45f6b8 ffff9b16c8182ac0
ffff9b145bef4740
[ 1692.816824] 7fffffffffffffff ffff9b1402334000 ffff9b16c89eb130
ffff9b16c89eade8
[ 1692.816829] ffff9b1402333e4c ffff9b16cdd7b870 ffff9b1402333dd0
ffffffffaca9a855
[ 1692.816834] Call Trace:
[ 1692.816848] [<ffffffffaca9a855>] schedule+0x35/0x80
[ 1692.816855] [<ffffffffac45fe08>] wb_wait_for_completion+0x58/0xa0
[ 1692.816860] [<ffffffffac2c73a0>] ? wake_atomic_t_function+0x60/0x60
[ 1692.816865] [<ffffffffac461dc9>] sync_inodes_sb+0xa9/0x2a0
[ 1692.816871] [<ffffffffac4687a5>] sync_inodes_one_sb+0x15/0x20
[ 1692.816876] [<ffffffffac436b5c>] iterate_supers+0xbc/0x110
[ 1692.816881] [<ffffffffac468790>] ? SyS_tee+0x3e0/0x3e0
[ 1692.816886] [<ffffffffac468b04>] sys_sync+0x44/0xb0
[ 1692.816892] [<ffffffffaca9f076>] entry_SYSCALL_64_fastpath+0x1e/0xa8
[ 1813.662393] INFO: task sync:3848 blocked for more than 120 seconds.
[ 1813.662402] Not tainted 4.8.0-26-generic #28-Ubuntu
[ 1813.662405] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[ 1813.662408] sync D ffff9b1402333db8 0 3848 2725 0x00000000
[ 1813.662417] ffff9b1402333db8 00ffffffac45f6b8 ffff9b16c8182ac0
ffff9b145bef4740
[ 1813.662422] 7fffffffffffffff ffff9b1402334000 ffff9b16c89eb130
ffff9b16c89eade8
[ 1813.662427] ffff9b1402333e4c ffff9b16cdd7b870 ffff9b1402333dd0
ffffffffaca9a855
[ 1813.662431] Call Trace:
[ 1813.662443] [<ffffffffaca9a855>] schedule+0x35/0x80
[ 1813.662449] [<ffffffffac45fe08>] wb_wait_for_completion+0x58/0xa0
[ 1813.662453] [<ffffffffac2c73a0>] ? wake_atomic_t_function+0x60/0x60
[ 1813.662457] [<ffffffffac461dc9>] sync_inodes_sb+0xa9/0x2a0
[ 1813.662462] [<ffffffffac4687a5>] sync_inodes_one_sb+0x15/0x20
[ 1813.662466] [<ffffffffac436b5c>] iterate_supers+0xbc/0x110
[ 1813.662470] [<ffffffffac468790>] ? SyS_tee+0x3e0/0x3e0
[ 1813.662474] [<ffffffffac468b04>] sys_sync+0x44/0xb0
[ 1813.662479] [<ffffffffaca9f076>] entry_SYSCALL_64_fastpath+0x1e/0xa8
ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: linux-image-4.8.0-26-generic 4.8.0-26.28
ProcVersionSignature: Ubuntu 4.8.0-26.28-generic 4.8.0
Uname: Linux 4.8.0-26-generic x86_64
ApportVersion: 2.20.3-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/pcmC0D0p: caravena 2210 F...m pulseaudio
/dev/snd/controlC0: caravena 2210 F.... pulseaudio
CurrentDesktop: GNOME
Date: Sun Oct 23 21:13:05 2016
HibernationDevice: RESUME=UUID=360bd2d2-4f44-4311-86d6-4781ac81ee87
InstallationDate: Installed on 2015-07-26 (455 days ago)
InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Alpha amd64 (20150723)
MachineType: SAMSUNG ELECTRONICS CO., LTD. 530U3C/530U4C
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.8.0-26-generic
root=UUID=4f4435ca-b877-47a5-9065-3dd624c0514e ro rootflags=subvol=@ quiet
splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.8.0-26-generic N/A
linux-backports-modules-4.8.0-26-generic N/A
linux-firmware 1.161
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/15/2013
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: P14AAJ
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: SAMSUNG_NP1234567890
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias:
dmi:bvnPhoenixTechnologiesLtd.:bvrP14AAJ:bd04/15/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn530U3C/530U4C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.name: 530U3C/530U4C
dmi.product.version: 0.1
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug yakkety
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https://bugs.launchpad.net/bugs/1636035
Title:
INFO: task sync:3848 blocked for more than 120 seconds.
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