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[Bug 1856603] Re: fstrim on nvme / AMD CPU fails and produces kernel error messages

To: group.of.nepali.translators@xxxxxxxxxxxxxxxxxxx
From: Connor Kuehl <1856603@xxxxxxxxxxxxxxxxxx>
Date: Tue, 07 Jan 2020 22:04:17 -0000
Reply-to: Bug 1856603 <1856603@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Also affects: fstrim (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Disco)
   Importance: Undecided
       Status: New

** Also affects: fstrim (Ubuntu Disco)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Bionic)
   Importance: Undecided
       Status: New

** Also affects: fstrim (Ubuntu Bionic)
   Importance: Undecided
       Status: New

** No longer affects: fstrim (Ubuntu)

** Changed in: linux (Ubuntu Xenial)
       Status: New => In Progress

** Changed in: linux (Ubuntu Bionic)
       Status: New => In Progress

** Changed in: linux (Ubuntu Disco)
       Status: New => In Progress

** Changed in: linux (Ubuntu Disco)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu Bionic)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu Bionic)
     Assignee: (unassigned) => Connor Kuehl (connork)

** Changed in: linux (Ubuntu Disco)
     Assignee: (unassigned) => Connor Kuehl (connork)

** Changed in: linux (Ubuntu Xenial)
     Assignee: (unassigned) => Connor Kuehl (connork)

** No longer affects: fstrim (Ubuntu Xenial)

** No longer affects: fstrim (Ubuntu Bionic)

** No longer affects: fstrim (Ubuntu Disco)

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https://bugs.launchpad.net/bugs/1856603

Title:
  fstrim on nvme / AMD CPU fails and produces kernel error messages

Status in linux package in Ubuntu:
  Invalid
Status in linux source package in Xenial:
  In Progress
Status in linux source package in Bionic:
  In Progress
Status in linux source package in Disco:
  In Progress
Status in linux source package in Eoan:
  In Progress

Bug description:
  /dev/nvme0n1 Sabrent Rocket 4.0 1TB firmware RKT401.1

  on Ubuntu 19.10 with an ASRock 300 Deskmini motherboard and a Ryzen
  3400G CPU. The filesystem is ext4:

  Linux elemental 5.3.0-24-generic #26-Ubuntu SMP Thu Nov 14 01:33:18
  UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

  UUID=c1812230-91be-4a18-8055-c3b7c82fbbd8 / ext4 defaults 0 0
  /dev/nvme0n1p2 on / type ext4 (rw,relatime)

  When I run fstrim -v / as root, I get the following error message at
  the command line:

  seth@elemental:~$ sudo fstrim -v /
  fstrim: /: FITRIM ioctl failed: Input/output error

  and the following kernel messages are logged:

  [ 136.309115] nvme 0000:01:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0000 address=0x0 flags=0x0000]
  [ 136.309129] nvme 0000:01:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0000 address=0x700 flags=0x0000]
  [ 136.309139] nvme 0000:01:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0000 address=0x680 flags=0x0000]
  [ 136.309150] nvme 0000:01:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0000 address=0x300 flags=0x0000]
  [ 136.309162] nvme 0000:01:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0000 address=0x200 flags=0x0000]
  [ 136.309171] nvme 0000:01:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0000 address=0x580 flags=0x0000]
  [ 136.309180] nvme 0000:01:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0000 address=0x100 flags=0x0000]
  [ 136.309189] nvme 0000:01:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0000 address=0x400 flags=0x0000]
  [ 136.309198] nvme 0000:01:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0000 address=0x380 flags=0x0000]
  [ 136.309207] nvme 0000:01:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0000 address=0x780 flags=0x0000]
  [ 136.309216] amd_iommu_report_page_fault: 1 callbacks suppressed
  [ 136.309218] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0000 address=0x180 flags=0x0000]
  [ 136.309228] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0000 address=0x500 flags=0x0000]
  [ 136.309238] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0000 address=0x480 flags=0x0000]
  [ 136.309250] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0000 address=0x280 flags=0x0000]
  [ 136.309259] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0000 address=0x600 flags=0x0000]
  [ 136.309269] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0000 address=0x80 flags=0x0000]
  [ 136.309279] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0000 address=0x980 flags=0x0000]
  [ 136.309291] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0000 address=0x900 flags=0x0000]
  [ 136.309301] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0000 address=0x880 flags=0x0000]
  [ 136.309311] AMD-Vi: Event logged [IO_PAGE_FAULT device=01:00.0 domain=0x0000 address=0xa00 flags=0x0000]
  [ 136.309762] blk_update_request: I/O error, dev nvme0n1, sector 1141976 op 0x3:(DISCARD) flags 0x800 phys_seg 1 prio class 0

  
  I have tried setting iommu passthrough on boot but this doesn’t seem to help:

  GRUB_CMDLINE_LINUX_DEFAULT="amd_iommu=pt avic=1”

  This is possibly related to:

  https://bugzilla.kernel.org/show_bug.cgi?id=202665
  http://git.infradead.org/nvme.git/commitdiff/530436c45ef2e446c12538a400e465929a0b3ade?hp=400b6a7b13a3fd71cff087139ce45dd1e5fff444

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