I have an xps15 9550 same as above, same controller, same issue. I set nvme_core.default_ps_max_latency_us=6000 this morning and have ~1 hour right now with no crash. I'll continue to run it today and report back.
The only issue I have seen with the 6k setting which I didn't not see with a setting of 250 was a black screen on boot with an external display connected. I can't imagine how that's affected by this setting. I was able to boot by turning off the display until the laptop was booted and then turning it on which seems to be working. This reliably repeats with the 6k kernel setting with no problem on the 250 setting, at least on the 3-4 reboots I've done in the last two days. -- 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/1678184 Title: APST quirk needed for Samsung 512GB NVMe drive Status in linux package in Ubuntu: Incomplete Bug description: APST support just landed in the latest Zesty kernel (4.10.0-14.16) as part of https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1664602. That patch has a quirk for certain 256GB Samsung drives found in Dell laptops that do not behave well when APST is enabled. I am experiencing the same symptoms with the same model laptop except with a 512GB Samsung. Prior to manually disabling APST the drive would die and system would go down in flames with I/O errors within 20 to 40 minutes of boot. $ sudo nvme list Node SN Model Namespace Usage Format FW Rev ---------------- -------------------- ---------------------------------------- --------- -------------------------- ---------------- -------- /dev/nvme0n1 ************** PM951 NVMe SAMSUNG 512GB 1 500.20 GB / 512.11 GB 512 B + 0 B BXV76D0Q ProblemType: Bug DistroRelease: Ubuntu 17.04 Package: linux-image-4.10.0-14-generic 4.10.0-14.16 ProcVersionSignature: Ubuntu 4.10.0-14.16-generic 4.10.3 Uname: Linux 4.10.0-14-generic x86_64 ApportVersion: 2.20.4-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ajclayton 3305 F.... pulseaudio CurrentDesktop: Unity:Unity7 Date: Fri Mar 31 09:42:38 2017 InstallationDate: Installed on 2012-09-08 (1665 days ago) InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) MachineType: Dell Inc. XPS 15 9550 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.10.0-14-generic root=UUID=779e5929-5ffb-49b1-9786-1adcde824b7d ro rootflags=subvol=@ noprompt nouveau.modeset=0 log_buf_len=20M RelatedPackageVersions: linux-restricted-modules-4.10.0-14-generic N/A linux-backports-modules-4.10.0-14-generic N/A linux-firmware 1.164 SourcePackage: linux UpgradeStatus: Upgraded to zesty on 2017-03-07 (23 days ago) dmi.bios.date: 04/07/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: 01.02.00 dmi.board.name: 0N7TVV dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr01.02.00:bd04/07/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: XPS 15 9550 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1678184/+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
