Yes, the problem started after an upgrade. From what I can see in the logs it seems that first the machine was upgraded from Ubuntu 17.10 to 18.04, apparently without problem. Then a few days later, the working kernel Ubuntu 4.13.0-43.48-generic 4.13.16 was replaced by 4.15.0-23.25-generic 4.15.18 which fails.
It will not be so easy to test another kernel, but I'll try. It will definitely be some days before I can report a result, I suspect. -- 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/1777245 Title: X freezes with kernel 4.15.0-23-generic (AMDGPU) Status in linux package in Ubuntu: Incomplete Bug description: This is on my parents machine; I only have remote access and not continuously, so this may slow down providing additional information. Since the latest kernel upgrade (from Linux version 4.13.0-43-generic (buildd@lgw01-amd64-026) (gcc version 7.2.0 (Ubuntu 7.2.0-8ubuntu3.2)) #48-Ubuntu SMP Wed May 16 12:18:48 UTC 2018 (Ubuntu 4.13.0-43.48-generic 4.13.16) to Linux version 4.15.0-23-generic (buildd@lgw01-amd64-055) (gcc version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)) #25-Ubuntu SMP Wed May 23 18:02:16 UTC 2018 (Ubuntu 4.15.0-23.25-generic 4.15.18) the machine appears to freezes some time soon after booting. It is just X; the machine is still reachable via ssh. I filed this bug using apport-cli, running the older (working) kernel, not the newer (failing) one. In /var/log/kernel I can see the following: Jun 15 23:26:23 xa-xubu kernel: [ 2417.562386] INFO: task Xorg:757 blocked for more than 120 seconds. Jun 15 23:26:23 xa-xubu kernel: [ 2417.562396] Not tainted 4.15.0-23-generic #25-Ubuntu Jun 15 23:26:23 xa-xubu kernel: [ 2417.562399] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Jun 15 23:26:23 xa-xubu kernel: [ 2417.562403] Xorg D 0 757 724 0x00400004 Jun 15 23:26:23 xa-xubu kernel: [ 2417.562408] Call Trace: Jun 15 23:26:23 xa-xubu kernel: [ 2417.562424] __schedule+0x297/0x8b0 Jun 15 23:26:23 xa-xubu kernel: [ 2417.562430] ? __kfifo_in+0x37/0x50 Jun 15 23:26:23 xa-xubu kernel: [ 2417.562434] schedule+0x2c/0x80 Jun 15 23:26:23 xa-xubu kernel: [ 2417.562559] amd_sched_entity_push_job+0xad/0xf0 [amdgpu] Jun 15 23:26:23 xa-xubu kernel: [ 2417.562565] ? wait_woken+0x80/0x80 Jun 15 23:26:23 xa-xubu kernel: [ 2417.562653] amdgpu_job_submit+0x9f/0xc0 [amdgpu] Jun 15 23:26:23 xa-xubu kernel: [ 2417.562723] amdgpu_vm_bo_update_mapping+0x389/0x3f0 [amdgpu] Jun 15 23:26:23 xa-xubu kernel: [ 2417.562793] ? amdgpu_vm_it_iter_first+0x40/0x40 [amdgpu] Jun 15 23:26:23 xa-xubu kernel: [ 2417.562863] amdgpu_vm_bo_update+0x325/0x5b0 [amdgpu] Jun 15 23:26:23 xa-xubu kernel: [ 2417.562930] amdgpu_gem_va_ioctl+0x524/0x540 [amdgpu] Jun 15 23:26:23 xa-xubu kernel: [ 2417.562962] ? drm_gem_handle_create_tail+0x120/0x190 [drm] Jun 15 23:26:23 xa-xubu kernel: [ 2417.563028] ? amdgpu_gem_create_ioctl+0xc1/0x270 [amdgpu] Jun 15 23:26:23 xa-xubu kernel: [ 2417.563096] ? amdgpu_gem_metadata_ioctl+0x1c0/0x1c0 [amdgpu] Jun 15 23:26:23 xa-xubu kernel: [ 2417.563115] drm_ioctl_kernel+0x5f/0xb0 [drm] Jun 15 23:26:23 xa-xubu kernel: [ 2417.563134] ? drm_ioctl_kernel+0x5f/0xb0 [drm] Jun 15 23:26:23 xa-xubu kernel: [ 2417.563154] drm_ioctl+0x31b/0x3d0 [drm] Jun 15 23:26:23 xa-xubu kernel: [ 2417.563220] ? amdgpu_gem_metadata_ioctl+0x1c0/0x1c0 [amdgpu] Jun 15 23:26:23 xa-xubu kernel: [ 2417.563225] ? update_load_avg+0x57f/0x6e0 Jun 15 23:26:23 xa-xubu kernel: [ 2417.563231] ? futex_wake+0x8f/0x180 Jun 15 23:26:23 xa-xubu kernel: [ 2417.563290] amdgpu_drm_ioctl+0x4f/0x90 [amdgpu] Jun 15 23:26:23 xa-xubu kernel: [ 2417.563296] do_vfs_ioctl+0xa8/0x630 Jun 15 23:26:23 xa-xubu kernel: [ 2417.563300] ? __schedule+0x29f/0x8b0 Jun 15 23:26:23 xa-xubu kernel: [ 2417.563304] SyS_ioctl+0x79/0x90 Jun 15 23:26:23 xa-xubu kernel: [ 2417.563309] do_syscall_64+0x73/0x130 Jun 15 23:26:23 xa-xubu kernel: [ 2417.563313] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 Jun 15 23:26:23 xa-xubu kernel: [ 2417.563317] RIP: 0033:0x7fbd7ddcf5d7 Jun 15 23:26:23 xa-xubu kernel: [ 2417.563319] RSP: 002b:00007fff67e69aa8 EFLAGS: 00003246 ORIG_RAX: 0000000000000010 Jun 15 23:26:23 xa-xubu kernel: [ 2417.563322] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007fbd7ddcf5d7 Jun 15 23:26:23 xa-xubu kernel: [ 2417.563324] RDX: 00007fff67e69af0 RSI: 00000000c0286448 RDI: 000000000000000e Jun 15 23:26:23 xa-xubu kernel: [ 2417.563326] RBP: 00007fff67e69af0 R08: 0000000101440000 R09: 000000000000000a Jun 15 23:26:23 xa-xubu kernel: [ 2417.563328] R10: 0000000000000039 R11: 0000000000003246 R12: 00000000c0286448 Jun 15 23:26:23 xa-xubu kernel: [ 2417.563330] R13: 000000000000000e R14: 000055e820965f20 R15: 0 which seems to point to some in-kernel AMD GPU driver. Since the problem seems to disappear when switching back to the previous kernel, I filed this as a kernel bug. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-23-generic 4.15.0-23.25 ProcVersionSignature: Ubuntu 4.13.0-43.48-generic 4.13.16 Uname: Linux 4.13.0-43-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: rhialto 21222 F.... pulseaudio /dev/snd/controlC0: rhialto 21222 F.... pulseaudio Date: Sat Jun 16 16:03:46 2018 InstallationDate: Installed on 2017-10-29 (230 days ago) InstallationMedia: Xubuntu 17.10 "Artful Aardvark" - Release amd64 (20171017.1) IwConfig: enp1s0 no wireless extensions. lo no wireless extensions. MachineType: LENOVO 90G9001RNY ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-43-generic.efi.signed root=UUID=103b739d-56cf-440b-a2b4-fc955e1a0a41 ro quiet splash vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-4.13.0-43-generic N/A linux-backports-modules-4.13.0-43-generic N/A linux-firmware 1.173.1 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-06-09 (7 days ago) dmi.bios.date: 12/29/2016 dmi.bios.vendor: LENOVO dmi.bios.version: O2HKT24A dmi.board.name: Jadeite CRB dmi.board.vendor: LENOVO dmi.board.version: SDK0J40700 WIN 3258076524150 dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnLENOVO:bvrO2HKT24A:bd12/29/2016:svnLENOVO:pn90G9001RNY:pvrideacentre310S-08ASR:rvnLENOVO:rnJadeiteCRB:rvrSDK0J40700WIN3258076524150:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: ideacentre 310S-08ASR dmi.product.name: 90G9001RNY dmi.product.version: ideacentre 310S-08ASR dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1777245/+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
