Hi, Summary of Problem: System reboots on graphical load with Intel HD 4000 iGPU since Linux 3.10 The full bug-report including all attachments is available on bugzilla and below: https://bugzilla.kernel.org/show_bug.cgi?id=94551 I hope I have managed to fill the report correctly and provided enough information. My apology for the mistakes that remains. Please let me know about further information that would be helpful. Should I try to git bisec Linux between 3.9 and 3.10? (I'm not sure how to do this properly, so pointers would be good). I'm not subscribed to any Linux ML. If possible, please keep me in Cc if replying to the email. Thanks, Rasmus 1 Full description of the problem/report ════════════════════════════════════════ I experience reboots crashing on my Thinkpad W530 with HD4000 whenever the iGPU is exposed to moderate load, e.g. playing a video game or movies. This only happens when I employ the Intel iGPU. It happens irrespective of whether Nvidia Optimus in enabled. It seems this error was introduced between Linux 3.9 and 3.10. Fedora 19 is stable. Fedora 20 is not. I have tested 3.9 with the current Xorg stack on Archlinux and it is also stable. 3.10 is not. Windows 7 is also stable. It’s not a hardware issue! I can run mprime cpu load indefinitely on the system without a crash. The temperature never goes above 90 degrees when I run any test. This problem is confirmed on two W530 machines. It does not seem to be a Intel driver bug as I the current Xorg stack works with Linux 3.9. A bug was first filled against Intel drivers, see section [#links]. Logs are produced with clean Fedora images. [#links] See section 7.2 2 Keywords ══════════ hard crash, Kernel, Thinkpad, Intel graphics, iGPU 3 Kernel version (from /proc/version) ═════════════════════════════════════ 3.1 Fedora 21 ───────────── Linux version 3.18.7-200.fc21.x86_64 (mockbuild@bkernel02.phx2.fedoraproject.org) (gcc version 4.9.2 20141101 (Red Hat 4.9.2-1) (GCC) ) #1 SMP Wed Feb 11 21:53:17 UTC 2015 3.2 Fedora 19 ───────────── Linux version 3.9.5-301.fc19.x86_64 (mockbuild@bkernel01.phx2.fedoraproject.org) (gcc version 4.8.1 20130603 (Red Hat 4.8.1-1) (GCC) ) #1 SMP Tue Jun 11 19:39:38 UTC 2013 4 Output of Oops.. message (if applicable) with symbolic information ════════════════════════════════════════════════════════════════════ I don’t see Oops messages… Please see the enclosed files. 5 How to reproduce ══════════════════ 1. Download gputest from [http://www.geeks3d.com/gputest/] 2. Run start_furmark_windowed_1024x640.sh. Put it in full screen if you like. 3. On my system the computer crashes and reboots typically within 10 minutes. The reboot is as if power was cut and returned. Like if the CPU was overheating (which it is not). IOW: The systemctl shutdown logs are not displayed. 6 Environment ═════════════ Thinkpad W530? (I don’t understand this question). 6.1 Software (add the output of the ver_linux script here) ────────────────────────────────────────────────────────── 6.1.1 Fedora 21 ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌ Please see ver_linux_fedora_21.txt. 6.1.2 Fedora 19 ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌ Please see ver_linux_fedora_19.txt. 6.2 Processor information (from /proc/cpuinfo) ────────────────────────────────────────────── 6.2.1 Fedora 21 ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌ I believe this is part of ver_linux_fedora_21.txt. 6.2.2 Fedora 19 ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌ I believe this is part of ver_linux_fedora_19.txt. 6.3 Module information (from /proc/modules) ─────────────────────────────────────────── 6.3.1 Fedora 21 ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌ Please see modules_fedora_21.txt 6.3.2 Fedora 19 ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌ Please see modules_fedora_19.txt 6.4 Loaded driver and hardware information (/proc/ioports, /proc/iomem) ─────────────────────────────────────────────────────────────────────── 6.4.1 Fedora 21 ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌ 6.4.1.1 /proc/ioports ┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄ Please see ioports_fedora_21.txt. 6.4.1.2 /proc/iomem ┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄ Please see iomem_fedora_21.txt. 6.4.2 Fedora 19 ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌ 6.4.2.1 /proc/ioports ┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄ Please see ioports_fedora_19.txt. 6.4.2.2 /proc/iomem ┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄ Please see iomem_fedora_19.txt. 6.5 PCI information (‘lspci -vvv’ as root) ────────────────────────────────────────── 6.5.1 Fedora 21 ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌ Please see lspci_fedora_21.txt 6.5.2 Fedora 19 ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌ Please see lspci_fedora_19.txt 6.6 SCSI information (from /proc/scsi/scsi) ─────────────────────────────────────────── 6.6.1 Fedora 21 ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌ Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: Crucial_CT256MX1 Rev: MU01 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi1 Channel: 00 Id: 00 Lun: 00 Vendor: MATSHITA Model: DVD-RAM UJ8C0 Rev: SB01 Type: CD-ROM ANSI SCSI revision: 05 6.6.2 Fedora 19 ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌ Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: Crucial_CT256MX1 Rev: MU01 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi1 Channel: 00 Id: 00 Lun: 00 Vendor: MATSHITA Model: DVD-RAM UJ8C0 Rev: SB01 Type: CD-ROM ANSI SCSI revision: 05 Host: scsi6 Channel: 00 Id: 00 Lun: 00 Vendor: Kingston Model: DataTraveler 3.0 Rev: PMAP Type: Direct-Access ANSI SCSI revision: 06 6.7 Other information that might be relevant to the problem ─────────────────────────────────────────────────────────── Not that I am aware of. 7 Other notes, patches, fixes, workarounds ══════════════════════════════════════════ 7.1 Other enclosures ──────────────────── dmesg_fedora_21.txt: netconsole output of Fedora 21 with crash. dmesg_fedora_19.txt: dmesg after running Furmark for a bit in Fedora 19. (My understanding is that this should be similar to the netcat output) xorg_crash_fedora_21.txt: an example of an Xorg-log when the server is crashing. bios_settings.txt: settings in the bios with some notes. 7.2 Other iteration of this bug report ────────────────────────────────────── This bug was first reported here: [https://bugs.freedesktop.org/show_bug.cgi?id=89451] It has been discussed here: [http://forum.thinkpads.com/viewtopic.php?f=70&t=116472] -- Got mashed potatoes. Ain't got no T-Bone. No T-Bone