[Desktop-packages] [Bug 1839174] Re: Xorg crashes in stdio functions under pci_device_vgaarb_set_target() from VGAGet() from VGAarbiterSpriteMoveCursor()
Thanks Seb. That means the fix is in the HWE packages for 18.04, not the regular packages for 18.04. ** Summary changed: - Xorg crashes - segfault error 6 in libc-2.27.so + Xorg crashes in stdio functions under pci_device_vgaarb_set_target() from VGAGet() from VGAarbiterSpriteMoveCursor() ** Also affects: xorg-server via https://bugs.freedesktop.org/show_bug.cgi?id=101995 Importance: Unknown Status: Unknown ** Changed in: xorg-server (Ubuntu) Status: Fix Released => Confirmed ** Also affects: xorg-server-hwe-18.04 (Ubuntu) Importance: Undecided Status: New ** Changed in: xorg-server-hwe-18.04 (Ubuntu) Status: New => Fix Released ** Also affects: xorg-server (Ubuntu Eoan) Importance: High Status: Confirmed ** Also affects: xorg-server-hwe-18.04 (Ubuntu Eoan) Importance: High Status: Fix Released ** Also affects: xorg-server (Ubuntu Disco) Importance: Undecided Status: New ** Also affects: xorg-server-hwe-18.04 (Ubuntu Disco) Importance: Undecided Status: New ** Also affects: xorg-server (Ubuntu Bionic) Importance: Undecided Status: New ** Also affects: xorg-server-hwe-18.04 (Ubuntu Bionic) Importance: Undecided Status: New ** Changed in: xorg-server (Ubuntu Disco) Status: New => Fix Released ** Changed in: xorg-server (Ubuntu Eoan) Status: Confirmed => Fix Released ** Changed in: xorg-server-hwe-18.04 (Ubuntu Bionic) Status: New => Fix Released ** No longer affects: xorg-server-hwe-18.04 (Ubuntu Disco) ** No longer affects: xorg-server-hwe-18.04 (Ubuntu Eoan) ** Changed in: xorg-server (Ubuntu Bionic) Status: New => Confirmed ** Changed in: xorg-server (Ubuntu Eoan) Importance: High => Undecided -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1839174 Title: Xorg crashes in stdio functions under pci_device_vgaarb_set_target() from VGAGet() from VGAarbiterSpriteMoveCursor() Status in X.Org X server: Unknown Status in xorg-server package in Ubuntu: Fix Released Status in xorg-server-hwe-18.04 package in Ubuntu: Fix Released Status in xorg-server source package in Bionic: Confirmed Status in xorg-server-hwe-18.04 source package in Bionic: Fix Released Status in xorg-server source package in Disco: Fix Released Status in xorg-server source package in Eoan: Fix Released Bug description: Issue xorg crashes, there doesn't seem to be any repeatable cause, it'll happen just watching hulu or youtube, it'll happen when using citrix, or when playing steam games. Steps to reproduce use xorg for a while Expected behaviour not crashing Other information issue only happens when using pci-e passthrough to qemu virtual machines Has been an issue since setting up pci-e passthrough, have reinstalled Linux Mint (from XFCE version) but error persists, have changed numerous bios settings without having an impact Upgraded bios to most recent version, also reset bios to factory defaults, didn't make a difference Tried latest Linux 5.x kernels from uuku, same issue The virtual machine doesn't have any problems, it never crashes and stays running when the host os xorg crashes. System:Host: drac Kernel: 4.15.0-55-generic x86_64 bits: 64 compiler: gcc v: 7.4.0 Desktop: Cinnamon 4.2.3 Distro: Linux Mint 19.2 Tina base: Ubuntu 18.04 bionic Machine: Type: Server System: Supermicro product: Super Server v: 0123456789 serial: Mobo: Supermicro model: X10SRL-F v: 1.01B serial: UEFI: American Megatrends v: 3.1c date: 05/02/2019 Graphics: Device-1: NVIDIA GP104 [GeForce GTX 1070] vendor: Micro-Star MSI driver: nvidia v: 430.34 bus ID: 03:00.0 Device-2: NVIDIA GK104 [GeForce GTX 770] vendor: eVga.com. driver: vfio-pci v: 0.2 bus ID: 04:00.0 Device-3: ASPEED Graphics Family vendor: Super Micro driver: ast v: kernel bus ID: 0b:00.0 Display: x11 server: X.Org 1.19.6 driver: nvidia resolution: 1920x1080~60Hz, 1920x1080~60Hz OpenGL: renderer: GeForce GTX 1070/PCIe/SSE2 v: 4.6.0 NVIDIA 430.34 direct render: Yes CPU: Topology: 6-Core model: Intel Xeon E5-1650 v4 bits: 64 type: MT MCP arch: Broadwell rev: 1 L2 cache: 15.0 MiB flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 86397 Speed: 1203 MHz min/max: N/A Core speeds (MHz): 1: 1203 2: 1206 3: 1330 4: 1200 5: 1201 6: 1201 7: 1200 8: 1200 9: 2046 10: 1202 11: 1202 12: 1201 Not using PPA builds Linux Mint 19.2 (Upgraded from 19.1) 64bit root@drac:/vms# apt-cache policy xorg xorg: Installed: 1:7.7+19ubuntu7.1 Candidate: 1:7.7+19ubuntu7.1 Version table: *** 1:7.7+19ubuntu7.1 500 500 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages 100 /var/lib/dpkg/sta
[Desktop-packages] [Bug 1839174] Re: Xorg crashes in stdio functions under pci_device_vgaarb_set_target() from VGAGet() from VGAarbiterSpriteMoveCursor()
the issue doesn't seem common enough to justify a SRU in the non hwe version at this point so setting that one as wontfix ** Changed in: xorg-server (Ubuntu Bionic) Importance: Undecided => Low ** Changed in: xorg-server (Ubuntu Bionic) Status: Confirmed => Won't Fix -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1839174 Title: Xorg crashes in stdio functions under pci_device_vgaarb_set_target() from VGAGet() from VGAarbiterSpriteMoveCursor() Status in X.Org X server: Unknown Status in xorg-server package in Ubuntu: Fix Released Status in xorg-server-hwe-18.04 package in Ubuntu: Fix Released Status in xorg-server source package in Bionic: Won't Fix Status in xorg-server-hwe-18.04 source package in Bionic: Fix Released Status in xorg-server source package in Disco: Fix Released Status in xorg-server source package in Eoan: Fix Released Bug description: Issue xorg crashes, there doesn't seem to be any repeatable cause, it'll happen just watching hulu or youtube, it'll happen when using citrix, or when playing steam games. Steps to reproduce use xorg for a while Expected behaviour not crashing Other information issue only happens when using pci-e passthrough to qemu virtual machines Has been an issue since setting up pci-e passthrough, have reinstalled Linux Mint (from XFCE version) but error persists, have changed numerous bios settings without having an impact Upgraded bios to most recent version, also reset bios to factory defaults, didn't make a difference Tried latest Linux 5.x kernels from uuku, same issue The virtual machine doesn't have any problems, it never crashes and stays running when the host os xorg crashes. System:Host: drac Kernel: 4.15.0-55-generic x86_64 bits: 64 compiler: gcc v: 7.4.0 Desktop: Cinnamon 4.2.3 Distro: Linux Mint 19.2 Tina base: Ubuntu 18.04 bionic Machine: Type: Server System: Supermicro product: Super Server v: 0123456789 serial: Mobo: Supermicro model: X10SRL-F v: 1.01B serial: UEFI: American Megatrends v: 3.1c date: 05/02/2019 Graphics: Device-1: NVIDIA GP104 [GeForce GTX 1070] vendor: Micro-Star MSI driver: nvidia v: 430.34 bus ID: 03:00.0 Device-2: NVIDIA GK104 [GeForce GTX 770] vendor: eVga.com. driver: vfio-pci v: 0.2 bus ID: 04:00.0 Device-3: ASPEED Graphics Family vendor: Super Micro driver: ast v: kernel bus ID: 0b:00.0 Display: x11 server: X.Org 1.19.6 driver: nvidia resolution: 1920x1080~60Hz, 1920x1080~60Hz OpenGL: renderer: GeForce GTX 1070/PCIe/SSE2 v: 4.6.0 NVIDIA 430.34 direct render: Yes CPU: Topology: 6-Core model: Intel Xeon E5-1650 v4 bits: 64 type: MT MCP arch: Broadwell rev: 1 L2 cache: 15.0 MiB flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 86397 Speed: 1203 MHz min/max: N/A Core speeds (MHz): 1: 1203 2: 1206 3: 1330 4: 1200 5: 1201 6: 1201 7: 1200 8: 1200 9: 2046 10: 1202 11: 1202 12: 1201 Not using PPA builds Linux Mint 19.2 (Upgraded from 19.1) 64bit root@drac:/vms# apt-cache policy xorg xorg: Installed: 1:7.7+19ubuntu7.1 Candidate: 1:7.7+19ubuntu7.1 Version table: *** 1:7.7+19ubuntu7.1 500 500 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages 100 /var/lib/dpkg/status 1:7.7+19ubuntu7 500 500 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages 1070GTX - NVIDIA-Linux-x86_64-430.34.run Left screen is a 60hz monitor, right screen is a 120hz monitor Also have a 770GTX bound to vfio for virtual machine passthrough Previously used the PPA from https://launchpad.net/~graphics-drivers/+archive/ubuntu/ppa, but changed to Nvidia's .run to see if it made a different - it did not. [xsession-errors.old.upload.txt](https://github.com/linuxmint/cinnamon/files/3471789/xsession-errors.old.upload.txt) [xsession-errors.upload.txt](https://github.com/linuxmint/cinnamon/files/3471791/xsession-errors.upload.txt) [lspci.txt](https://github.com/linuxmint/cinnamon/files/3471859/lspci.txt) Syslog: [kernel.log.txt](https://github.com/linuxmint/cinnamon/files/3471804/kernel.log.txt) Grub: having mitigations on or off makes no difference GRUB_CMDLINE_LINUX_DEFAULT="intel_idle.max_cstate=1 drm.debug=14 log_buf_len=16M mitigations=on intel_iommu=on vfio-pci.ids=8086:8d26,10de:1184,10de:0e0a modprobe.blacklist=snd_hda_intel,snd_hda_core,snd_hda_codec,snd_hda_codec_hdmi,nouveau" Xorg crashdump traces: /var/crash/usr_lib_xorg_Xorg.0.crash Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `/usr/lib/xorg/Xorg -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -noliste'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00
[Desktop-packages] [Bug 1839174] Re: Xorg crashes in stdio functions under pci_device_vgaarb_set_target() from VGAGet() from VGAarbiterSpriteMoveCursor()
If you want the fix and still want to stick with version 18.04 then you should get it by installing 18.04.2 instead: http://releases.ubuntu.com/18.04/ Alternatively you can install the HWE packages, but I don't have instructions prepared for how to do that reliably. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1839174 Title: Xorg crashes in stdio functions under pci_device_vgaarb_set_target() from VGAGet() from VGAarbiterSpriteMoveCursor() Status in X.Org X server: Unknown Status in xorg-server package in Ubuntu: Fix Released Status in xorg-server-hwe-18.04 package in Ubuntu: Fix Released Status in xorg-server source package in Bionic: Won't Fix Status in xorg-server-hwe-18.04 source package in Bionic: Fix Released Status in xorg-server source package in Disco: Fix Released Status in xorg-server source package in Eoan: Fix Released Bug description: Issue xorg crashes, there doesn't seem to be any repeatable cause, it'll happen just watching hulu or youtube, it'll happen when using citrix, or when playing steam games. Steps to reproduce use xorg for a while Expected behaviour not crashing Other information issue only happens when using pci-e passthrough to qemu virtual machines Has been an issue since setting up pci-e passthrough, have reinstalled Linux Mint (from XFCE version) but error persists, have changed numerous bios settings without having an impact Upgraded bios to most recent version, also reset bios to factory defaults, didn't make a difference Tried latest Linux 5.x kernels from uuku, same issue The virtual machine doesn't have any problems, it never crashes and stays running when the host os xorg crashes. System:Host: drac Kernel: 4.15.0-55-generic x86_64 bits: 64 compiler: gcc v: 7.4.0 Desktop: Cinnamon 4.2.3 Distro: Linux Mint 19.2 Tina base: Ubuntu 18.04 bionic Machine: Type: Server System: Supermicro product: Super Server v: 0123456789 serial: Mobo: Supermicro model: X10SRL-F v: 1.01B serial: UEFI: American Megatrends v: 3.1c date: 05/02/2019 Graphics: Device-1: NVIDIA GP104 [GeForce GTX 1070] vendor: Micro-Star MSI driver: nvidia v: 430.34 bus ID: 03:00.0 Device-2: NVIDIA GK104 [GeForce GTX 770] vendor: eVga.com. driver: vfio-pci v: 0.2 bus ID: 04:00.0 Device-3: ASPEED Graphics Family vendor: Super Micro driver: ast v: kernel bus ID: 0b:00.0 Display: x11 server: X.Org 1.19.6 driver: nvidia resolution: 1920x1080~60Hz, 1920x1080~60Hz OpenGL: renderer: GeForce GTX 1070/PCIe/SSE2 v: 4.6.0 NVIDIA 430.34 direct render: Yes CPU: Topology: 6-Core model: Intel Xeon E5-1650 v4 bits: 64 type: MT MCP arch: Broadwell rev: 1 L2 cache: 15.0 MiB flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 86397 Speed: 1203 MHz min/max: N/A Core speeds (MHz): 1: 1203 2: 1206 3: 1330 4: 1200 5: 1201 6: 1201 7: 1200 8: 1200 9: 2046 10: 1202 11: 1202 12: 1201 Not using PPA builds Linux Mint 19.2 (Upgraded from 19.1) 64bit root@drac:/vms# apt-cache policy xorg xorg: Installed: 1:7.7+19ubuntu7.1 Candidate: 1:7.7+19ubuntu7.1 Version table: *** 1:7.7+19ubuntu7.1 500 500 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages 100 /var/lib/dpkg/status 1:7.7+19ubuntu7 500 500 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages 1070GTX - NVIDIA-Linux-x86_64-430.34.run Left screen is a 60hz monitor, right screen is a 120hz monitor Also have a 770GTX bound to vfio for virtual machine passthrough Previously used the PPA from https://launchpad.net/~graphics-drivers/+archive/ubuntu/ppa, but changed to Nvidia's .run to see if it made a different - it did not. [xsession-errors.old.upload.txt](https://github.com/linuxmint/cinnamon/files/3471789/xsession-errors.old.upload.txt) [xsession-errors.upload.txt](https://github.com/linuxmint/cinnamon/files/3471791/xsession-errors.upload.txt) [lspci.txt](https://github.com/linuxmint/cinnamon/files/3471859/lspci.txt) Syslog: [kernel.log.txt](https://github.com/linuxmint/cinnamon/files/3471804/kernel.log.txt) Grub: having mitigations on or off makes no difference GRUB_CMDLINE_LINUX_DEFAULT="intel_idle.max_cstate=1 drm.debug=14 log_buf_len=16M mitigations=on intel_iommu=on vfio-pci.ids=8086:8d26,10de:1184,10de:0e0a modprobe.blacklist=snd_hda_intel,snd_hda_core,snd_hda_codec,snd_hda_codec_hdmi,nouveau" Xorg crashdump traces: /var/crash/usr_lib_xorg_Xorg.0.crash Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `/usr/lib/xorg/Xorg -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -noliste'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x7f34b8f
[Desktop-packages] [Bug 1839174] Re: Xorg crashes in stdio functions under pci_device_vgaarb_set_target() from VGAGet() from VGAarbiterSpriteMoveCursor()
installing the HWE packages resolved the issue for Linux Mint 19.2, thank you. Command: apt install --install-recommends xserver-xorg-hwe-18.04 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1839174 Title: Xorg crashes in stdio functions under pci_device_vgaarb_set_target() from VGAGet() from VGAarbiterSpriteMoveCursor() Status in X.Org X server: Unknown Status in xorg-server package in Ubuntu: Fix Released Status in xorg-server-hwe-18.04 package in Ubuntu: Fix Released Status in xorg-server source package in Bionic: Won't Fix Status in xorg-server-hwe-18.04 source package in Bionic: Fix Released Status in xorg-server source package in Disco: Fix Released Status in xorg-server source package in Eoan: Fix Released Bug description: Issue xorg crashes, there doesn't seem to be any repeatable cause, it'll happen just watching hulu or youtube, it'll happen when using citrix, or when playing steam games. Steps to reproduce use xorg for a while Expected behaviour not crashing Other information issue only happens when using pci-e passthrough to qemu virtual machines Has been an issue since setting up pci-e passthrough, have reinstalled Linux Mint (from XFCE version) but error persists, have changed numerous bios settings without having an impact Upgraded bios to most recent version, also reset bios to factory defaults, didn't make a difference Tried latest Linux 5.x kernels from uuku, same issue The virtual machine doesn't have any problems, it never crashes and stays running when the host os xorg crashes. System:Host: drac Kernel: 4.15.0-55-generic x86_64 bits: 64 compiler: gcc v: 7.4.0 Desktop: Cinnamon 4.2.3 Distro: Linux Mint 19.2 Tina base: Ubuntu 18.04 bionic Machine: Type: Server System: Supermicro product: Super Server v: 0123456789 serial: Mobo: Supermicro model: X10SRL-F v: 1.01B serial: UEFI: American Megatrends v: 3.1c date: 05/02/2019 Graphics: Device-1: NVIDIA GP104 [GeForce GTX 1070] vendor: Micro-Star MSI driver: nvidia v: 430.34 bus ID: 03:00.0 Device-2: NVIDIA GK104 [GeForce GTX 770] vendor: eVga.com. driver: vfio-pci v: 0.2 bus ID: 04:00.0 Device-3: ASPEED Graphics Family vendor: Super Micro driver: ast v: kernel bus ID: 0b:00.0 Display: x11 server: X.Org 1.19.6 driver: nvidia resolution: 1920x1080~60Hz, 1920x1080~60Hz OpenGL: renderer: GeForce GTX 1070/PCIe/SSE2 v: 4.6.0 NVIDIA 430.34 direct render: Yes CPU: Topology: 6-Core model: Intel Xeon E5-1650 v4 bits: 64 type: MT MCP arch: Broadwell rev: 1 L2 cache: 15.0 MiB flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 86397 Speed: 1203 MHz min/max: N/A Core speeds (MHz): 1: 1203 2: 1206 3: 1330 4: 1200 5: 1201 6: 1201 7: 1200 8: 1200 9: 2046 10: 1202 11: 1202 12: 1201 Not using PPA builds Linux Mint 19.2 (Upgraded from 19.1) 64bit root@drac:/vms# apt-cache policy xorg xorg: Installed: 1:7.7+19ubuntu7.1 Candidate: 1:7.7+19ubuntu7.1 Version table: *** 1:7.7+19ubuntu7.1 500 500 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages 100 /var/lib/dpkg/status 1:7.7+19ubuntu7 500 500 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages 1070GTX - NVIDIA-Linux-x86_64-430.34.run Left screen is a 60hz monitor, right screen is a 120hz monitor Also have a 770GTX bound to vfio for virtual machine passthrough Previously used the PPA from https://launchpad.net/~graphics-drivers/+archive/ubuntu/ppa, but changed to Nvidia's .run to see if it made a different - it did not. [xsession-errors.old.upload.txt](https://github.com/linuxmint/cinnamon/files/3471789/xsession-errors.old.upload.txt) [xsession-errors.upload.txt](https://github.com/linuxmint/cinnamon/files/3471791/xsession-errors.upload.txt) [lspci.txt](https://github.com/linuxmint/cinnamon/files/3471859/lspci.txt) Syslog: [kernel.log.txt](https://github.com/linuxmint/cinnamon/files/3471804/kernel.log.txt) Grub: having mitigations on or off makes no difference GRUB_CMDLINE_LINUX_DEFAULT="intel_idle.max_cstate=1 drm.debug=14 log_buf_len=16M mitigations=on intel_iommu=on vfio-pci.ids=8086:8d26,10de:1184,10de:0e0a modprobe.blacklist=snd_hda_intel,snd_hda_core,snd_hda_codec,snd_hda_codec_hdmi,nouveau" Xorg crashdump traces: /var/crash/usr_lib_xorg_Xorg.0.crash Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `/usr/lib/xorg/Xorg -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -noliste'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x7f34b8f87432 in __GI__IO_default_xsputn (f=0x7f34b0427610, data=0x7f34b90b5030 , n=3) at genops.c:389 389 genops.c: No such file
[Desktop-packages] [Bug 1839174] Re: Xorg crashes in stdio functions under pci_device_vgaarb_set_target() from VGAGet() from VGAarbiterSpriteMoveCursor()
Launchpad has imported 3 comments from the remote bug at https://bugs.freedesktop.org/show_bug.cgi?id=101995. If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. On 2017-07-31T21:54:53+00:00 Zygfryd wrote: Created attachment 133165 gdb log of Xorg execution and crash stacktrace Steps to reproduce: 1) Have an AMD GPU as your display device (radeon or modesetting, doesn't matter) 2) Have an Intel iGPU, unused 3) Start an X session, grab a window corner and keep moving your mouse for a couple minutes, or just use your computer normally for up to a couple hours. Xorg was compiled using GCC 4.9.4 with CFLAGS="-march=core-avx2 -O2 -pipe -ggdb" Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1839174/comments/0 On 2017-08-03T04:35:52+00:00 Keith Packard wrote: I've posted a proposed patch for this, although I have no way to test to see if it helps. What it does is prevent the main thread and input thread from scrambling the pointer private structures used by the VGA arbiter. Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1839174/comments/1 On 2017-12-13T17:48:17+00:00 Ajax-a wrote: commit cf7517675d988c2d1ff967d6d162a17acbdad466 Author: Keith Packard Date: Wed Aug 2 21:34:52 2017 -0700 xfree86: Hold input_lock across SPRITE functions in VGA arbiter Avoid scrambling the sprite functions wrapper. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101995 Signed-off-by: Keith Packard Reviewed-by: Adam Jackson Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg- server/+bug/1839174/comments/2 ** Changed in: xorg-server Status: Unknown => Fix Released ** Changed in: xorg-server Importance: Unknown => Medium -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1839174 Title: Xorg crashes in stdio functions under pci_device_vgaarb_set_target() from VGAGet() from VGAarbiterSpriteMoveCursor() Status in X.Org X server: Fix Released Status in xorg-server package in Ubuntu: Fix Released Status in xorg-server-hwe-18.04 package in Ubuntu: Fix Released Status in xorg-server source package in Bionic: Won't Fix Status in xorg-server-hwe-18.04 source package in Bionic: Fix Released Status in xorg-server source package in Disco: Fix Released Status in xorg-server source package in Eoan: Fix Released Bug description: Issue xorg crashes, there doesn't seem to be any repeatable cause, it'll happen just watching hulu or youtube, it'll happen when using citrix, or when playing steam games. Steps to reproduce use xorg for a while Expected behaviour not crashing Other information issue only happens when using pci-e passthrough to qemu virtual machines Has been an issue since setting up pci-e passthrough, have reinstalled Linux Mint (from XFCE version) but error persists, have changed numerous bios settings without having an impact Upgraded bios to most recent version, also reset bios to factory defaults, didn't make a difference Tried latest Linux 5.x kernels from uuku, same issue The virtual machine doesn't have any problems, it never crashes and stays running when the host os xorg crashes. System:Host: drac Kernel: 4.15.0-55-generic x86_64 bits: 64 compiler: gcc v: 7.4.0 Desktop: Cinnamon 4.2.3 Distro: Linux Mint 19.2 Tina base: Ubuntu 18.04 bionic Machine: Type: Server System: Supermicro product: Super Server v: 0123456789 serial: Mobo: Supermicro model: X10SRL-F v: 1.01B serial: UEFI: American Megatrends v: 3.1c date: 05/02/2019 Graphics: Device-1: NVIDIA GP104 [GeForce GTX 1070] vendor: Micro-Star MSI driver: nvidia v: 430.34 bus ID: 03:00.0 Device-2: NVIDIA GK104 [GeForce GTX 770] vendor: eVga.com. driver: vfio-pci v: 0.2 bus ID: 04:00.0 Device-3: ASPEED Graphics Family vendor: Super Micro driver: ast v: kernel bus ID: 0b:00.0 Display: x11 server: X.Org 1.19.6 driver: nvidia resolution: 1920x1080~60Hz, 1920x1080~60Hz OpenGL: renderer: GeForce GTX 1070/PCIe/SSE2 v: 4.6.0 NVIDIA 430.34 direct render: Yes CPU: Topology: 6-Core model: Intel Xeon E5-1650 v4 bits: 64 type: MT MCP arch: Broadwell rev: 1 L2 cache: 15.0 MiB flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 86397 Speed: 1203 MHz min/max: N/A Core speeds (MHz): 1: 1203 2: 1206 3: 1330 4: 1200 5: 1201 6: 1201 7: 1200 8: 1200 9: 2046 10: 1202 11