[Bug 1725479] [NEW] systemd-udevd crashes writing ISO with usb-creator-gtk

Dario Menin darioalessio.menin at gmail.com
Fri Oct 20 20:53:16 UTC 2017 

Public bug reported:

At the end of the writing process, systemd-udevd crashes, i see this in
dmesg:

[ 1934.273458] INFO: task systemd-udevd:298 blocked for more than 120 seconds.
[ 1934.273462]       Tainted: G           OE   4.10.0-37-generic #41~16.04.1-Ubuntu
[ 1934.273464] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1934.273466] systemd-udevd   D    0   298      1 0x00000004
[ 1934.273468] Call Trace:
[ 1934.273474]  __schedule+0x232/0x700
[ 1934.273475]  schedule+0x36/0x80
[ 1934.273477]  schedule_preempt_disabled+0xe/0x10
[ 1934.273478]  __mutex_lock_slowpath+0x193/0x290
[ 1934.273480]  mutex_lock+0x2f/0x40
[ 1934.273482]  __blkdev_get+0x6f/0x400
[ 1934.273483]  blkdev_get+0x129/0x330
[ 1934.273485]  blkdev_open+0x82/0xd0
[ 1934.273487]  do_dentry_open+0x208/0x310
[ 1934.273488]  ? blkdev_get_by_dev+0x50/0x50
[ 1934.273489]  vfs_open+0x4c/0x70
[ 1934.273491]  ? may_open+0x9b/0x100
[ 1934.273492]  path_openat+0x2ac/0x1430
[ 1934.273494]  do_filp_open+0x91/0x100
[ 1934.273496]  ? __alloc_fd+0x46/0x170
[ 1934.273498]  do_sys_open+0x12d/0x280
[ 1934.273500]  SyS_open+0x1e/0x20
[ 1934.273502]  entry_SYSCALL_64_fastpath+0x1e/0xad
[ 1934.273503] RIP: 0033:0x7f915b83bc60
[ 1934.273504] RSP: 002b:00007ffccbefa178 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
[ 1934.273505] RAX: ffffffffffffffda RBX: 000055baf1f7e760 RCX: 00007f915b83bc60
[ 1934.273506] RDX: 000055baf1422592 RSI: 00000000000a0800 RDI: 000055baf1f6dcc0
[ 1934.273507] RBP: 0000000000000000 R08: 0000000000000073 R09: 0000000000000003
[ 1934.273507] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 1934.273508] R13: 000055baf1f7e760 R14: 00007ffccbefa0f0 R15: 0000000000000000

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: systemd 229-4ubuntu19
ProcVersionSignature: Ubuntu 4.10.0-37.41~16.04.1-generic 4.10.17
Uname: Linux 4.10.0-37-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Oct 20 22:46:10 2017
InstallationDate: Installed on 2016-02-21 (606 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
MachineType: System manufacturer System Product Name
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.10.0-37-generic root=UUID=9ada941b-b897-4db2-94f4-db4646410ed0 ro quiet splash vt.handoff=7
SourcePackage: systemd
UpgradeStatus: Upgraded to xenial on 2016-06-28 (479 days ago)
dmi.bios.date: 09/11/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2105
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M4A78T-E
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2105:bd09/11/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A78T-E:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

** Affects: systemd (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

** Attachment added: "crash log found in /var/crash/_lib_systemd_systemd-udevd.0.crash"
   https://bugs.launchpad.net/bugs/1725479/+attachment/4980243/+files/crash.txt

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Title:
  systemd-udevd crashes writing ISO with usb-creator-gtk

Status in systemd package in Ubuntu:
  New

Bug description:
  At the end of the writing process, systemd-udevd crashes, i see this
  in dmesg:

  [ 1934.273458] INFO: task systemd-udevd:298 blocked for more than 120 seconds.
  [ 1934.273462]       Tainted: G           OE   4.10.0-37-generic #41~16.04.1-Ubuntu
  [ 1934.273464] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  [ 1934.273466] systemd-udevd   D    0   298      1 0x00000004
  [ 1934.273468] Call Trace:
  [ 1934.273474]  __schedule+0x232/0x700
  [ 1934.273475]  schedule+0x36/0x80
  [ 1934.273477]  schedule_preempt_disabled+0xe/0x10
  [ 1934.273478]  __mutex_lock_slowpath+0x193/0x290
  [ 1934.273480]  mutex_lock+0x2f/0x40
  [ 1934.273482]  __blkdev_get+0x6f/0x400
  [ 1934.273483]  blkdev_get+0x129/0x330
  [ 1934.273485]  blkdev_open+0x82/0xd0
  [ 1934.273487]  do_dentry_open+0x208/0x310
  [ 1934.273488]  ? blkdev_get_by_dev+0x50/0x50
  [ 1934.273489]  vfs_open+0x4c/0x70
  [ 1934.273491]  ? may_open+0x9b/0x100
  [ 1934.273492]  path_openat+0x2ac/0x1430
  [ 1934.273494]  do_filp_open+0x91/0x100
  [ 1934.273496]  ? __alloc_fd+0x46/0x170
  [ 1934.273498]  do_sys_open+0x12d/0x280
  [ 1934.273500]  SyS_open+0x1e/0x20
  [ 1934.273502]  entry_SYSCALL_64_fastpath+0x1e/0xad
  [ 1934.273503] RIP: 0033:0x7f915b83bc60
  [ 1934.273504] RSP: 002b:00007ffccbefa178 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
  [ 1934.273505] RAX: ffffffffffffffda RBX: 000055baf1f7e760 RCX: 00007f915b83bc60
  [ 1934.273506] RDX: 000055baf1422592 RSI: 00000000000a0800 RDI: 000055baf1f6dcc0
  [ 1934.273507] RBP: 0000000000000000 R08: 0000000000000073 R09: 0000000000000003
  [ 1934.273507] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
  [ 1934.273508] R13: 000055baf1f7e760 R14: 00007ffccbefa0f0 R15: 0000000000000000

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: systemd 229-4ubuntu19
  ProcVersionSignature: Ubuntu 4.10.0-37.41~16.04.1-generic 4.10.17
  Uname: Linux 4.10.0-37-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.10
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Fri Oct 20 22:46:10 2017
  InstallationDate: Installed on 2016-02-21 (606 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  MachineType: System manufacturer System Product Name
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.10.0-37-generic root=UUID=9ada941b-b897-4db2-94f4-db4646410ed0 ro quiet splash vt.handoff=7
  SourcePackage: systemd
  UpgradeStatus: Upgraded to xenial on 2016-06-28 (479 days ago)
  dmi.bios.date: 09/11/2009
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 2105
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: M4A78T-E
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2105:bd09/11/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A78T-E:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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