I did that and rebooted. After i selected ubuntu in grub menu as usual i got the normal login screen. After logging in i only see a violet background and a mouse pointer. Hitting keys and moving mouse does nothing, but when i switch to TTY4 via ALT+f4 i can see a warning: [ 368.068010] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [kworker/0:1:61]
this warning is repeated every 28 seconds And it seems i cannot log in via tty anymore :/ It feels like this is a completely different problem. What i can do is enter recovery mode and get a root shell. -- 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/1785715 Title: ubuntu hynix ssd I/O Errors after some minutes Status in linux package in Ubuntu: Confirmed Bug description: Maybe similar to Bug 1678184 Im working on ubuntu 18.04 (with Kernel 4.15.0-29-generic) on a dell XPS 15-9560 After 20 - 180 Minutes the graphical interface hangs up (i can switch workspaces, but not much else) and entering commands like "ls" yields bash: input/output error Reboot is impossible via the command or the button. Short click on power button gives me a TTY like view prompting errors for nvme0 ext4 file system errors (i will post more exact text on next hangup) The hangups appear randomly, but often during shutting the lid or plugging in power cable, which makes me thing it might be something with ssd power states. For that reason i added grub parameters like "nvme_core.default_ps_max_latency_us=3000" (see Bug 1678184) and ended up fully disabling APST by setting it to 0, but the bug still occured. sudo nvme id-ctrl /dev/nvme0 yields: NVME Identify Controller: vid : 0x1c5c ssvid : 0x1c5c sn : EJ75N621210105PBR mn : PC300 NVMe SK hynix 1TB fr : 20005A00 rab : 1 ieee : ace42e cmic : 0 mdts : 5 cntlid : 0 ver : 10200 rtd3r : 90f560 rtd3e : ea60 oaes : 0 ctratt : 0 oacs : 0x16 acl : 3 aerl : 3 frmw : 0x16 lpa : 0x2 elpe : 254 npss : 4 avscc : 0x1 apsta : 0x1 wctemp : 361 cctemp : 363 mtfa : 0 hmpre : 0 hmmin : 0 tnvmcap : 0 unvmcap : 0 rpmbs : 0 edstt : 60 dsto : 1 fwug : 0 kas : 0 hctma : 0 mntmt : 0 mxtmt : 0 sanicap : 0 hmminds : 0 hmmaxd : 0 sqes : 0x66 cqes : 0x44 maxcmd : 0 nn : 1 oncs : 0x1e fuses : 0 fna : 0 vwc : 0x1 awun : 255 awupf : 0 nvscc : 1 acwu : 0 sgls : 0 subnqn : ioccsz : 0 iorcsz : 0 icdoff : 0 ctrattr : 0 msdbd : 0 ps 0 : mp:5.87W operational enlat:5 exlat:5 rrt:0 rrl:0 rwt:0 rwl:0 idle_power:- active_power:- ps 1 : mp:2.40W operational enlat:30 exlat:30 rrt:1 rrl:1 rwt:1 rwl:1 idle_power:- active_power:- ps 2 : mp:1.90W operational enlat:100 exlat:100 rrt:2 rrl:2 rwt:2 rwl:2 idle_power:- active_power:- ps 3 : mp:0.1000W non-operational enlat:1000 exlat:1000 rrt:3 rrl:3 rwt:3 rwl:3 idle_power:- active_power:- ps 4 : mp:0.0060W non-operational enlat:1000 exlat:5000 rrt:3 rrl:3 rwt:3 rwl:3 idle_power:- active_power:- sudo nvme get-feature -f 0x0c -H /dev/nvme0 yields: get-feature:0xc (Autonomous Power State Transition), Current value:00000000 Autonomous Power State Transition Enable (APSTE): Disabled Auto PST Entries ................. Entry[ 0] ................. Idle Time Prior to Transition (ITPT): 0 ms Idle Transition Power State (ITPS): 0 ................. Entry[ 1] ................. Idle Time Prior to Transition (ITPT): 0 ms Idle Transition Power State (ITPS): 0 ... and so on ... --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: revisor 1593 F.... pulseaudio CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=1bc0493d-0592-40d4-b0f4-938fbe12a990 InstallationDate: Installed on 2018-07-12 (25 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 04f3:24a1 Elan Microelectronics Corp. Bus 001 Device 002: ID 0cf3:e300 Atheros Communications, Inc. Bus 001 Device 004: ID 0c45:6713 Microdia Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Dell Inc. XPS 15 9560 NonfreeKernelModules: nvidia_modeset nvidia Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-29-generic root=UUID=70377f6e-8c1c-4316-bded-c738410879ab ro quiet splash nvme_core.default_ps_max_latency_us=0 vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18 RelatedPackageVersions: linux-restricted-modules-4.15.0-29-generic N/A linux-backports-modules-4.15.0-29-generic N/A linux-firmware 1.173.1 Tags: bionic Uname: Linux 4.15.0-29-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 07/05/2018 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.10.1 dmi.board.name: 05FFDN dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.10.1:bd07/05/2018:svnDellInc.:pnXPS159560:pvr:rvnDellInc.:rn05FFDN:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: XPS dmi.product.name: XPS 15 9560 dmi.sys.vendor: Dell Inc. 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