apport information ** Attachment added: "ProcInterrupts.txt" https://bugs.launchpad.net/bugs/1740309/+attachment/5028138/+files/ProcInterrupts.txt
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1740309 Title: user space process hangs when reading partition table of disk Status in linux package in Ubuntu: Confirmed Bug description: user space process as in parted or fdisk or update-grub2 that read partition tables freeze on my system: /dev/sda/ GPT disk with efi, swap and ubuntu artful partition /dev/sdb old style partition table with one ext4 partition /dev/sdc GPT disk with efi partition, windows 10 I.e. if I run as root : # fdisk -l Disk /dev/sda: 232,9 GiB, 250059350016 bytes, 488397168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: gpt Disk identifier: 56FF6AB0-076F-483C-890F-EC4B4FAF6313 Device Start End Sectors Size Type /dev/sda1 2048 2000895 1998848 976M EFI System /dev/sda2 2000896 10000383 7999488 3,8G Linux swap /dev/sda3 10000384 488396799 478396416 228,1G Linux filesystem Disk /dev/sdb: 489,1 GiB, 525112713216 bytes, 1025610768 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x2f11f9c4 Device Boot Start End Sectors Size Id Type /dev/sdb1 2048 1025609727 1025607680 489G 83 Linux <...process hangs here forever...> With gdb I stepped through fdisk -l and saw that the call to open ('dev/sdc'..) never returns. -- ApportVersion: 2.20.7-0ubuntu3.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC0D3p: andreas 1807 F...m pulseaudio /dev/snd/controlC0: andreas 1807 F.... pulseaudio CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 17.10 HibernationDevice: RESUME=UUID=8a7a6077-0a3e-4641-8f15-bd6f09826510 InstallationDate: Installed on 2017-12-26 (1 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018) IwConfig: lo no wireless extensions. enp8s0 no wireless extensions. enp12s0 no wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. Package: linux-image-4.13.0-21-generic 4.13.0-21.24 PackageArchitecture: amd64 ProcFB: 0 radeondrmfb 1 astdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-21-generic.efi.signed root=UUID=4f18ad67-a4f0-4e03-b061-66615751538e ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.13.0-21.24-generic 4.13.13 RelatedPackageVersions: linux-restricted-modules-4.13.0-21-generic N/A linux-backports-modules-4.13.0-21-generic N/A linux-firmware 1.169.1 RfKill: Tags: artful Uname: Linux 4.13.0-21-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 12/09/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P1.80 dmi.board.name: EP2C602 dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.80:bd12/09/2013:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnEP2C602:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.family: To Be Filled By O.E.M. dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1740309/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp