Sorry - I've hit a hiccup. `apport` wants me to file extra information (as uploaded above, twice) but upon running at the command line it notes: ` It appears you are currently running a mainline kernel. It would be better to report this bug upstream at http://bugzilla.kernel.org/ so that the upstream kernel developers are aware of the issue. If you'd still like to file a bug against the Ubuntu kernel, please boot with an official Ubuntu kernel and re-file. `
I believe I installed 4.19.0 from: http://kernel.ubuntu.com/~kernel- ppa/mainline/v4.19/ which I presume is the official Ubuntu kernel source - should I be installing from elsewhere? My first step is to mark this as Complete in case someone can give me sensible guidance and I've _also_ posted it to the Kernel.org Bugzilla (which might be the best place for this bug?): https://bugzilla.kernel.org/show_bug.cgi?id=201811 Any and all guidance very happily received, thanks for your help, Ian. ** Bug watch added: Linux Kernel Bug Tracker #201811 https://bugzilla.kernel.org/show_bug.cgi?id=201811 ** Changed in: linux (Ubuntu) Status: Incomplete => New -- 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/1805816 Title: APST quirk needed for PM951 Samsung 1TB NVMe Drive Status in linux package in Ubuntu: New Bug description: This is a fresh posted connected to a very similar now-solved bug ("APST quirk needed for Samsung 512GB NVMe drive"): https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1678184 My NVMe is the less-common 1TB version. It exhibits similar (possibly identical) behaviour but has not yet been quirked. I've followed up as Comment #101 but maybe I need to open this as a new issue? https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1678184/comments/101 Specifically - using Kernel 4.19.0 on Mint 19.0 the default APST settings caused read-only errors within minutes-1 hour, this is fatal. Disabling APST solves the problem, I have this disabled in GRUB now. Reducing the APST settings but not disabling them does not stop the problem. An example of the read-only result (copied from #101) that occurs if APST is left in its default state: Oct 31 11:33:04 ian-XPS-15-9550 kernel: EXT4-fs (dm-1): mounted filesystem with ordered data mode. Opts: (null) Oct 31 11:33:04 ian-XPS-15-9550 kernel: EXT4-fs (dm-1): re-mounted. Opts: errors=remount-ro Oct 31 11:33:05 ian-XPS-15-9550 kernel: EXT4-fs (nvme0n1p1): mounted filesystem with ordered data mode. Opts: (null) Oct 31 15:09:44 ian-XPS-15-9550 kernel: EXT4-fs (dm-1): mounted filesystem with ordered data mode. Opts: (null) Oct 31 15:09:44 ian-XPS-15-9550 kernel: EXT4-fs (dm-1): re-mounted. Opts: errors=remount-ro Oct 31 15:09:44 ian-XPS-15-9550 kernel: EXT4-fs (nvme0n1p1): mounted filesystem with ordered data mode. Opts: (null) I had tried `nvme_core.default_ps_max_latency_us=250` but the read- only bug persists, it just takes longer to occur. Disabling APST with `nvme_core.default_ps_max_latency_us=0` has solved the issue. I've been using my laptop successfully (no read-only errors) for over a week having disabled APST including many suspend/awaken cycles. Prior to this every boot would crash and burn with read-only errors within an hour or so. This is the drive and kernel (copied from #101): $ sudo nvme list Node SN Model Namespace Usage Format FW Rev ---------------- -------------------- ---------------------------------------- --------- -------------------------- ---------------- -------- /dev/nvme0n1 S2FZNYAG801690 PM951 NVMe SAMSUNG 1024GB 1 314.10 GB / 1.02 TB 512 B + 0 B BXV76D0Q $ uname -a Linux ian-XPS-15-9550 4.19.0-041900-generic #201810221809 SMP Mon Oct 22 22:11:45 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux $ lsb_release -rd Description: Linux Mint 19 Tara Release: 19 I am of course happy to upload more info - let me know what's needed? Could this be added as a quirk to the kernel please? --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 CurrentDesktop: X-Cinnamon DistroRelease: Linux Mint 19 InstallationDate: Installed on 2018-10-27 (32 days ago) InstallationMedia: Linux Mint 19 "Tara" - Release amd64 20180717 Package: linux (not installed) Tags: tara Uname: Linux 4.19.0-041900-generic x86_64 UnreportableReason: The running kernel is not an Ubuntu kernel UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 CurrentDesktop: X-Cinnamon DistroRelease: Linux Mint 19 InstallationDate: Installed on 2018-10-27 (32 days ago) InstallationMedia: Linux Mint 19 "Tara" - Release amd64 20180717 Package: linux (not installed) Tags: tara Uname: Linux 4.19.0-041900-generic x86_64 UnreportableReason: The running kernel is not an Ubuntu kernel UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1805816/+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
