[Kernel-packages] [Bug 1966066] Re: audio from external sound card is distorted

2022-04-19 Thread eta 
Confirmed fixed for me on linux-generic-hwe-20.04 version 5.13.0-41.46
from impish-proposed.

(edit: whoops, got the version wrong)

eta@st-pancras ~> uname -a
Linux st-pancras 5.13.0-41-generic #46-Ubuntu SMP Thu Apr 14 20:06:04 UTC 2022 
x86_64 x86_64 x86_64 GNU/Linux


** Tags removed: verification-needed-impish
** Tags added: verification-done-impish

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Title:
  audio from external sound card is distorted

Status in linux package in Ubuntu:
  Fix Committed
Status in linux-signed-hwe-5.13 package in Ubuntu:
  Invalid
Status in linux source package in Impish:
  Fix Committed
Status in linux-signed-hwe-5.13 source package in Impish:
  Invalid
Status in linux source package in Jammy:
  Fix Committed
Status in linux-signed-hwe-5.13 source package in Jammy:
  Invalid

Bug description:
  [Impact]
  Commit d215f63d49da ("ALSA: usb-audio: Check available frames for the
  next packet size") landed in 5.13.0-35 introduced regression to USB
  audio device.

  It's because this patch introduced the available frame size check, but
  the conversion forgot to initialize the temporary variable properly.

  A workaround is to modify /etc/pulse/daemon.conf, set the
  default-sample-rate to 48000, uncomment it by removing the semicolon
  at the beginning of the line. And restart pulseaudio with: 
systemctl --user restart pulseaudio.service

  [Fix]
  * 23939115 ALSA: usb-audio: Fix packet size calculation regression
  This patch can be cherry-picked into Impish kernel, and it's already in
  the master-next branch of Jammy tree.

  [Test]
  Test kernels built with 5.13.0-37 + this patch, can be found in:
  * Focal-5.13 - 
https://people.canonical.com/~phlin/kernel/lp-1966066-usb-audio/focal/
  * Impish-5.13 - 
https://people.canonical.com/~phlin/kernel/lp-1966066-usb-audio/impish/

  Both kernels were tested by affected users and they're working as
  expected.

  [Where problems could occur]
  If this patch is incorrect, it might affect USB audio devices.

  
  [Original Bug Report]
  The sound card is a Focusrite Scarlett 2i2.

  The sound is distorted everywhere.

  Sound via HDMI works.

  Seen others having the same problem:
  (Edit because of previously wrong link here) 
https://askubuntu.com/questions/1398614/upgrading-to-5-13-0-37-generic-breaks-audio-with-external-audio-card

  ubuntu release: Ubuntu 20.04.4 LTS
  package name involved in bug: linux-image-5.13.0-37-generic

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: linux-image-5.13.0-37-generic 5.13.0-37.42~20.04.1
  ProcVersionSignature: Ubuntu 5.13.0-35.40~20.04.1-generic 5.13.19
  Uname: Linux 5.13.0-35-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu27.21
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Mar 23 12:56:02 2022
  InstallationDate: Installed on 2020-12-18 (459 days ago)
  InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
  SourcePackage: linux-signed-hwe-5.13
  UpgradeStatus: No upgrade log present (probably fresh install)

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[Kernel-packages] [Bug 1968089] [NEW] Scarlett 2i2 USB DAC (1235:8210) has distorted playback on kernel 5.13.0-39

2022-04-06 Thread eta 
Public bug reported:

After updating to kernel `linux-image-5.13.0-39-generic`, my Scarlett
2i2 began playing back distorted audio (sounds overdriven and slowed
down, as if the sample rate is incorrect). To clarify, the device is
reported in libusb as:

Bus 001 Device 002: ID 1235:8210 Focusrite-Novation Scarlett 2i2 Camera

This bug is also present in 5.13.0-37-generic, but is not present in
5.13.0-35-generic; booting the -35 kernel via GRUB resolves the problem.

ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: linux-image-5.13.0-39-generic 5.13.0-39.44
ProcVersionSignature: Ubuntu 5.13.0-35.40-generic 5.13.19
Uname: Linux 5.13.0-35-generic x86_64
ApportVersion: 2.20.11-0ubuntu71.1
Architecture: amd64
AudioDevicesInUse:
 USERPID ACCESS COMMAND
 /dev/snd/controlC0:  eta2014 F pulseaudio
 /dev/snd/controlC1:  eta2014 F pulseaudio
 /dev/snd/pcmC1D0p:   eta2014 F...m pulseaudio
CasperMD5CheckResult: pass
CurrentDesktop: GNOME
Date: Wed Apr  6 22:05:29 2022
InstallationDate: Installed on 2022-02-16 (49 days ago)
InstallationMedia: Ubuntu 21.10 "Impish Indri" - Release amd64 (20211012)
MachineType: LENOVO 20L6S87J1L
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.13.0-35-generic 
root=/dev/mapper/vgubuntu-root ro quiet splash
RelatedPackageVersions:
 linux-restricted-modules-5.13.0-35-generic N/A
 linux-backports-modules-5.13.0-35-generic  N/A
 linux-firmware 1.201.5
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/20/2021
dmi.bios.release: 1.41
dmi.bios.vendor: LENOVO
dmi.bios.version: N24ET66W (1.41 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20L6S87J1L
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.21
dmi.modalias: 
dmi:bvnLENOVO:bvrN24ET66W(1.41):bd10/20/2021:br1.41:efr1.21:svnLENOVO:pn20L6S87J1L:pvrThinkPadT480:rvnLENOVO:rn20L6S87J1L:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_20L6_BU_Think_FM_ThinkPadT480:
dmi.product.family: ThinkPad T480
dmi.product.name: 20L6S87J1L
dmi.product.sku: LENOVO_MT_20L6_BU_Think_FM_ThinkPad T480
dmi.product.version: ThinkPad T480
dmi.sys.vendor: LENOVO

** Affects: linux (Ubuntu)
 Importance: Undecided
 Status: New


** Tags: amd64 apport-bug impish wayland-session

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Title:
  Scarlett 2i2 USB DAC (1235:8210) has distorted playback on kernel
  5.13.0-39

Status in linux package in Ubuntu:
  New

Bug description:
  After updating to kernel `linux-image-5.13.0-39-generic`, my Scarlett
  2i2 began playing back distorted audio (sounds overdriven and slowed
  down, as if the sample rate is incorrect). To clarify, the device is
  reported in libusb as:

  Bus 001 Device 002: ID 1235:8210 Focusrite-Novation Scarlett 2i2
  Camera

  This bug is also present in 5.13.0-37-generic, but is not present in
  5.13.0-35-generic; booting the -35 kernel via GRUB resolves the
  problem.

  ProblemType: Bug
  DistroRelease: Ubuntu 21.10
  Package: linux-image-5.13.0-39-generic 5.13.0-39.44
  ProcVersionSignature: Ubuntu 5.13.0-35.40-generic 5.13.19
  Uname: Linux 5.13.0-35-generic x86_64
  ApportVersion: 2.20.11-0ubuntu71.1
  Architecture: amd64
  AudioDevicesInUse:
   USERPID ACCESS COMMAND
   /dev/snd/controlC0:  eta2014 F pulseaudio
   /dev/snd/controlC1:  eta2014 F pulseaudio
   /dev/snd/pcmC1D0p:   eta2014 F...m pulseaudio
  CasperMD5CheckResult: pass
  CurrentDesktop: GNOME
  Date: Wed Apr  6 22:05:29 2022
  InstallationDate: Installed on 2022-02-16 (49 days ago)
  InstallationMedia: Ubuntu 21.10 "Impish Indri" - Release amd64 (20211012)
  MachineType: LENOVO 20L6S87J1L
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.13.0-35-generic 
root=/dev/mapper/vgubuntu-root ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-5.13.0-35-generic N/A
   linux-backports-modules-5.13.0-35-generic  N/A
   linux-firmware 1.201.5
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/20/2021
  dmi.bios.release: 1.41
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N24ET66W (1.41 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20L6S87J1L
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0J40697 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.ec.firmware.release: 1.21
  dmi.modalias: 
dmi:bvnLENOVO:bvrN24ET66W(1.41):bd10/20/2021:br1.41:efr1.21:svnLENOVO:pn20L6S87J1L:pvrThinkPadT480:rvnLENOVO:rn20L6S87J1L:rvrSDK0J406

[Kernel-packages] [Bug 1834177] [NEW] kernel bug causes i915 modesetting to not work

2019-06-25 Thread Eta Meta 
Public bug reported:

>From the logs:
Jun 25 11:14:21 machine-name kernel: [ cut here ]
Jun 25 11:14:21 machine-name kernel: kernel BUG at 
/build/linux-H3Eec1/linux-4.15.0/arch/x86/mm/fault.c:268!
Jun 25 11:14:21 machine-name kernel: invalid opcode:  [#1] SMP PTI
Jun 25 11:14:21 machine-name kernel: Modules linked in: i915(+) video 
i2c_algo_bit crc32_pclmul drm_kms_helper syscopyarea sysfillrect psmouse ahci 
sysimgblt e1000e fb_sys_fops libahci drm ptp pps_core wmi
Jun 25 11:14:21 machine-name kernel: CPU: 1 PID: 168 Comm: systemd-udevd Not 
tainted 4.15.0-52-generic #56-Ubuntu
Jun 25 11:14:21 machine-name kernel: Hardware name: Hewlett-Packard HP Compaq 
8200 Elite SFF PC/1495, BIOS J01 v02.15 11/10/2011
Jun 25 11:14:21 machine-name kernel: EIP: vmalloc_fault+0x229/0x240
Jun 25 11:14:21 machine-name kernel: EFLAGS: 00010086 CPU: 1
Jun 25 11:14:21 machine-name kernel: EAX: 027b EBX: c5e20e28 ECX: fef3 
EDX: 
Jun 25 11:14:21 machine-name kernel: ESI: f8a78000 EDI: fe00 EBP: f550fc08 
ESP: f550fbec
Jun 25 11:14:21 machine-name kernel:  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 
0068
Jun 25 11:14:21 machine-name kernel: CR0: 80050033 CR2: f8a78000 CR3: 356b2000 
CR4: 000406f0
Jun 25 11:14:21 machine-name kernel: Call Trace:
Jun 25 11:14:21 machine-name kernel:  ? __do_page_fault+0x510/0x510
Jun 25 11:14:21 machine-name kernel:  __do_page_fault+0x39d/0x510
Jun 25 11:14:21 machine-name kernel:  ? __do_page_fault+0x510/0x510
Jun 25 11:14:21 machine-name kernel:  do_page_fault+0x27/0xf0
Jun 25 11:14:21 machine-name kernel:  ? __do_page_fault+0x510/0x510
Jun 25 11:14:21 machine-name kernel:  common_exception+0x130/0x136
Jun 25 11:14:21 machine-name kernel: EIP: i915_check_vgpu+0x11/0xb0 [i915]
Jun 25 11:14:21 machine-name kernel: EFLAGS: 00010286 CPU: 1
Jun 25 11:14:21 machine-name kernel: EAX: f57d8000 EBX: f57d8000 ECX: f550fcb4 
EDX: f8a0
Jun 25 11:14:21 machine-name kernel: ESI:  EDI: f57d83f8 EBP: f550fcb8 
ESP: f550fcac
Jun 25 11:14:21 machine-name kernel:  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 
0068
Jun 25 11:14:21 machine-name kernel:  ? pci_conf1_read+0xbb/0xf0
Jun 25 11:14:21 machine-name kernel:  intel_uncore_init+0x15/0x5c0 [i915]
Jun 25 11:14:21 machine-name kernel:  i915_driver_load+0x456/0xcc0 [i915]
Jun 25 11:14:21 machine-name kernel:  ? acpi_dev_found+0x6c/0x80
Jun 25 11:14:21 machine-name kernel:  ? i915_pci_remove+0x20/0x20 [i915]
Jun 25 11:14:21 machine-name kernel:  i915_pci_probe+0x3a/0x70 [i915]
Jun 25 11:14:21 machine-name kernel:  pci_device_probe+0xc7/0x160
Jun 25 11:14:21 machine-name kernel:  driver_probe_device+0x2af/0x440
Jun 25 11:14:21 machine-name kernel:  __driver_attach+0x99/0xe0
Jun 25 11:14:21 machine-name kernel:  ? driver_probe_device+0x440/0x440
Jun 25 11:14:21 machine-name kernel:  bus_for_each_dev+0x5a/0xa0
Jun 25 11:14:21 machine-name kernel:  driver_attach+0x19/0x20
Jun 25 11:14:21 machine-name kernel:  ? driver_probe_device+0x440/0x440
Jun 25 11:14:21 machine-name kernel:  bus_add_driver+0x187/0x230
Jun 25 11:14:21 machine-name kernel:  ? 0xf8951000
Jun 25 11:14:21 machine-name kernel:  driver_register+0x56/0xd0
Jun 25 11:14:21 machine-name kernel:  ? 0xf8951000
Jun 25 11:14:21 machine-name kernel:  __pci_register_driver+0x3a/0x40
Jun 25 11:14:21 machine-name kernel:  i915_init+0x51/0x56 [i915]
Jun 25 11:14:21 machine-name kernel:  do_one_initcall+0x49/0x174
Jun 25 11:14:21 machine-name kernel:  ? _cond_resched+0x17/0x40
Jun 25 11:14:21 machine-name kernel:  ? kmem_cache_alloc_trace+0x165/0x1d0
Jun 25 11:14:21 machine-name kernel:  ? do_init_module+0x21/0x1ec
Jun 25 11:14:21 machine-name kernel:  ? do_init_module+0x21/0x1ec
Jun 25 11:14:21 machine-name kernel:  do_init_module+0x50/0x1ec
Jun 25 11:14:21 machine-name kernel:  load_module+0x1588/0x1ab0
Jun 25 11:14:21 machine-name kernel:  ? ima_post_read_file+0xb4/0xc0
Jun 25 11:14:21 machine-name kernel:  ? security_kernel_post_read_file+0x62/0x70
Jun 25 11:14:21 machine-name kernel:  SyS_finit_module+0x8a/0xe0
Jun 25 11:14:21 machine-name kernel:  do_fast_syscall_32+0x7f/0x200
Jun 25 11:14:21 machine-name kernel:  entry_SYSENTER_32+0x6b/0xbe
Jun 25 11:14:21 machine-name kernel: EIP: 0xb7f4bd09
Jun 25 11:14:21 machine-name kernel: EFLAGS: 0296 CPU: 1
Jun 25 11:14:21 machine-name kernel: EAX: ffda EBX: 0013 ECX: b7d5da15 
EDX: 
Jun 25 11:14:21 machine-name kernel: ESI: 01f2c530 EDI: 01f17d50 EBP: 01f11800 
ESP: bfec3c4c
Jun 25 11:14:21 machine-name kernel:  DS: 007b ES: 007b FS:  GS: 0033 SS: 
007b
Jun 25 11:14:21 machine-name kernel: Code: cf 89 7d ec 8b 45 ec 0f ac d0 0c 89 
c2 8d 04 80 c1 ea 11 c1 e2 04 8b 92 40 32 eb c5 83 e2 f8 8d 04 c2 39 45 e4 0f 
84 d0 fe ff ff <0f> 0b 90 8d 74 26 00 83 c4 10 b8 ff ff ff ff 5b 5e 5f 5d c3 8d
Jun 25 11:14:21 machine-name kernel: EIP: vmalloc_fault+0x229/0x240 SS:ESP: 
0068:f550fbec
Jun 25 11:14:21 machine-name kernel: ---[ end trace fc80bb0be413797b ]---

After this, Xorg will unload modeset and

[Kernel-packages] [Bug 1834177] Re: kernel bug causes i915 modesetting to not work

2019-06-25 Thread Eta Meta 
I've found this to happen with these kernel versions:

linux-image-4.15.0-50-generic
linux-image-4.15.0-52-generic

Whereas it does NOT happen with linux-image-4.15.0-45-generic

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https://bugs.launchpad.net/bugs/1834177

Title:
  regression: between 4.15.0-45 and 4.15.0-50 -  i915 vmalloc_fault

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  From the logs:
  Jun 25 11:14:21 machine-name kernel: [ cut here ]
  Jun 25 11:14:21 machine-name kernel: kernel BUG at 
/build/linux-H3Eec1/linux-4.15.0/arch/x86/mm/fault.c:268!
  Jun 25 11:14:21 machine-name kernel: invalid opcode:  [#1] SMP PTI
  Jun 25 11:14:21 machine-name kernel: Modules linked in: i915(+) video 
i2c_algo_bit crc32_pclmul drm_kms_helper syscopyarea sysfillrect psmouse ahci 
sysimgblt e1000e fb_sys_fops libahci drm ptp pps_core wmi
  Jun 25 11:14:21 machine-name kernel: CPU: 1 PID: 168 Comm: systemd-udevd Not 
tainted 4.15.0-52-generic #56-Ubuntu
  Jun 25 11:14:21 machine-name kernel: Hardware name: Hewlett-Packard HP Compaq 
8200 Elite SFF PC/1495, BIOS J01 v02.15 11/10/2011
  Jun 25 11:14:21 machine-name kernel: EIP: vmalloc_fault+0x229/0x240
  Jun 25 11:14:21 machine-name kernel: EFLAGS: 00010086 CPU: 1
  Jun 25 11:14:21 machine-name kernel: EAX: 027b EBX: c5e20e28 ECX: 
fef3 EDX: 
  Jun 25 11:14:21 machine-name kernel: ESI: f8a78000 EDI: fe00 EBP: 
f550fc08 ESP: f550fbec
  Jun 25 11:14:21 machine-name kernel:  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 
0068
  Jun 25 11:14:21 machine-name kernel: CR0: 80050033 CR2: f8a78000 CR3: 
356b2000 CR4: 000406f0
  Jun 25 11:14:21 machine-name kernel: Call Trace:
  Jun 25 11:14:21 machine-name kernel:  ? __do_page_fault+0x510/0x510
  Jun 25 11:14:21 machine-name kernel:  __do_page_fault+0x39d/0x510
  Jun 25 11:14:21 machine-name kernel:  ? __do_page_fault+0x510/0x510
  Jun 25 11:14:21 machine-name kernel:  do_page_fault+0x27/0xf0
  Jun 25 11:14:21 machine-name kernel:  ? __do_page_fault+0x510/0x510
  Jun 25 11:14:21 machine-name kernel:  common_exception+0x130/0x136
  Jun 25 11:14:21 machine-name kernel: EIP: i915_check_vgpu+0x11/0xb0 [i915]
  Jun 25 11:14:21 machine-name kernel: EFLAGS: 00010286 CPU: 1
  Jun 25 11:14:21 machine-name kernel: EAX: f57d8000 EBX: f57d8000 ECX: 
f550fcb4 EDX: f8a0
  Jun 25 11:14:21 machine-name kernel: ESI:  EDI: f57d83f8 EBP: 
f550fcb8 ESP: f550fcac
  Jun 25 11:14:21 machine-name kernel:  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 
0068
  Jun 25 11:14:21 machine-name kernel:  ? pci_conf1_read+0xbb/0xf0
  Jun 25 11:14:21 machine-name kernel:  intel_uncore_init+0x15/0x5c0 [i915]
  Jun 25 11:14:21 machine-name kernel:  i915_driver_load+0x456/0xcc0 [i915]
  Jun 25 11:14:21 machine-name kernel:  ? acpi_dev_found+0x6c/0x80
  Jun 25 11:14:21 machine-name kernel:  ? i915_pci_remove+0x20/0x20 [i915]
  Jun 25 11:14:21 machine-name kernel:  i915_pci_probe+0x3a/0x70 [i915]
  Jun 25 11:14:21 machine-name kernel:  pci_device_probe+0xc7/0x160
  Jun 25 11:14:21 machine-name kernel:  driver_probe_device+0x2af/0x440
  Jun 25 11:14:21 machine-name kernel:  __driver_attach+0x99/0xe0
  Jun 25 11:14:21 machine-name kernel:  ? driver_probe_device+0x440/0x440
  Jun 25 11:14:21 machine-name kernel:  bus_for_each_dev+0x5a/0xa0
  Jun 25 11:14:21 machine-name kernel:  driver_attach+0x19/0x20
  Jun 25 11:14:21 machine-name kernel:  ? driver_probe_device+0x440/0x440
  Jun 25 11:14:21 machine-name kernel:  bus_add_driver+0x187/0x230
  Jun 25 11:14:21 machine-name kernel:  ? 0xf8951000
  Jun 25 11:14:21 machine-name kernel:  driver_register+0x56/0xd0
  Jun 25 11:14:21 machine-name kernel:  ? 0xf8951000
  Jun 25 11:14:21 machine-name kernel:  __pci_register_driver+0x3a/0x40
  Jun 25 11:14:21 machine-name kernel:  i915_init+0x51/0x56 [i915]
  Jun 25 11:14:21 machine-name kernel:  do_one_initcall+0x49/0x174
  Jun 25 11:14:21 machine-name kernel:  ? _cond_resched+0x17/0x40
  Jun 25 11:14:21 machine-name kernel:  ? kmem_cache_alloc_trace+0x165/0x1d0
  Jun 25 11:14:21 machine-name kernel:  ? do_init_module+0x21/0x1ec
  Jun 25 11:14:21 machine-name kernel:  ? do_init_module+0x21/0x1ec
  Jun 25 11:14:21 machine-name kernel:  do_init_module+0x50/0x1ec
  Jun 25 11:14:21 machine-name kernel:  load_module+0x1588/0x1ab0
  Jun 25 11:14:21 machine-name kernel:  ? ima_post_read_file+0xb4/0xc0
  Jun 25 11:14:21 machine-name kernel:  ? 
security_kernel_post_read_file+0x62/0x70
  Jun 25 11:14:21 machine-name kernel:  SyS_finit_module+0x8a/0xe0
  Jun 25 11:14:21 machine-name kernel:  do_fast_syscall_32+0x7f/0x200
  Jun 25 11:14:21 machine-name kernel:  entry_SYSENTER_32+0x6b/0xbe
  Jun 25 11:14:21 machine-name kernel: EIP: 0xb7f4bd09
  Jun 25 11:14:21 machine-name kernel: EFLAGS: 0296 CPU: 1
  Jun 25 11:14:21 machine-name kernel: EAX: ffda EBX: 0013 ECX: 
b7d5da15 EDX: 
  Jun 25 11:14:21 machine-name kernel: ESI

[Kernel-packages] [Bug 1834177] Re: regression: between 4.15.0-45 and 4.15.0-50 - i915 vmalloc_fault

2019-06-25 Thread Eta Meta 
** Attachment removed: "WifiSyslog.txt"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1834177/+attachment/5273123/+files/WifiSyslog.txt

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https://bugs.launchpad.net/bugs/1834177

Title:
  regression: between 4.15.0-45 and 4.15.0-50 -  i915 vmalloc_fault

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  From the logs:
  Jun 25 11:14:21 machine-name kernel: [ cut here ]
  Jun 25 11:14:21 machine-name kernel: kernel BUG at 
/build/linux-H3Eec1/linux-4.15.0/arch/x86/mm/fault.c:268!
  Jun 25 11:14:21 machine-name kernel: invalid opcode:  [#1] SMP PTI
  Jun 25 11:14:21 machine-name kernel: Modules linked in: i915(+) video 
i2c_algo_bit crc32_pclmul drm_kms_helper syscopyarea sysfillrect psmouse ahci 
sysimgblt e1000e fb_sys_fops libahci drm ptp pps_core wmi
  Jun 25 11:14:21 machine-name kernel: CPU: 1 PID: 168 Comm: systemd-udevd Not 
tainted 4.15.0-52-generic #56-Ubuntu
  Jun 25 11:14:21 machine-name kernel: Hardware name: Hewlett-Packard HP Compaq 
8200 Elite SFF PC/1495, BIOS J01 v02.15 11/10/2011
  Jun 25 11:14:21 machine-name kernel: EIP: vmalloc_fault+0x229/0x240
  Jun 25 11:14:21 machine-name kernel: EFLAGS: 00010086 CPU: 1
  Jun 25 11:14:21 machine-name kernel: EAX: 027b EBX: c5e20e28 ECX: 
fef3 EDX: 
  Jun 25 11:14:21 machine-name kernel: ESI: f8a78000 EDI: fe00 EBP: 
f550fc08 ESP: f550fbec
  Jun 25 11:14:21 machine-name kernel:  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 
0068
  Jun 25 11:14:21 machine-name kernel: CR0: 80050033 CR2: f8a78000 CR3: 
356b2000 CR4: 000406f0
  Jun 25 11:14:21 machine-name kernel: Call Trace:
  Jun 25 11:14:21 machine-name kernel:  ? __do_page_fault+0x510/0x510
  Jun 25 11:14:21 machine-name kernel:  __do_page_fault+0x39d/0x510
  Jun 25 11:14:21 machine-name kernel:  ? __do_page_fault+0x510/0x510
  Jun 25 11:14:21 machine-name kernel:  do_page_fault+0x27/0xf0
  Jun 25 11:14:21 machine-name kernel:  ? __do_page_fault+0x510/0x510
  Jun 25 11:14:21 machine-name kernel:  common_exception+0x130/0x136
  Jun 25 11:14:21 machine-name kernel: EIP: i915_check_vgpu+0x11/0xb0 [i915]
  Jun 25 11:14:21 machine-name kernel: EFLAGS: 00010286 CPU: 1
  Jun 25 11:14:21 machine-name kernel: EAX: f57d8000 EBX: f57d8000 ECX: 
f550fcb4 EDX: f8a0
  Jun 25 11:14:21 machine-name kernel: ESI:  EDI: f57d83f8 EBP: 
f550fcb8 ESP: f550fcac
  Jun 25 11:14:21 machine-name kernel:  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 
0068
  Jun 25 11:14:21 machine-name kernel:  ? pci_conf1_read+0xbb/0xf0
  Jun 25 11:14:21 machine-name kernel:  intel_uncore_init+0x15/0x5c0 [i915]
  Jun 25 11:14:21 machine-name kernel:  i915_driver_load+0x456/0xcc0 [i915]
  Jun 25 11:14:21 machine-name kernel:  ? acpi_dev_found+0x6c/0x80
  Jun 25 11:14:21 machine-name kernel:  ? i915_pci_remove+0x20/0x20 [i915]
  Jun 25 11:14:21 machine-name kernel:  i915_pci_probe+0x3a/0x70 [i915]
  Jun 25 11:14:21 machine-name kernel:  pci_device_probe+0xc7/0x160
  Jun 25 11:14:21 machine-name kernel:  driver_probe_device+0x2af/0x440
  Jun 25 11:14:21 machine-name kernel:  __driver_attach+0x99/0xe0
  Jun 25 11:14:21 machine-name kernel:  ? driver_probe_device+0x440/0x440
  Jun 25 11:14:21 machine-name kernel:  bus_for_each_dev+0x5a/0xa0
  Jun 25 11:14:21 machine-name kernel:  driver_attach+0x19/0x20
  Jun 25 11:14:21 machine-name kernel:  ? driver_probe_device+0x440/0x440
  Jun 25 11:14:21 machine-name kernel:  bus_add_driver+0x187/0x230
  Jun 25 11:14:21 machine-name kernel:  ? 0xf8951000
  Jun 25 11:14:21 machine-name kernel:  driver_register+0x56/0xd0
  Jun 25 11:14:21 machine-name kernel:  ? 0xf8951000
  Jun 25 11:14:21 machine-name kernel:  __pci_register_driver+0x3a/0x40
  Jun 25 11:14:21 machine-name kernel:  i915_init+0x51/0x56 [i915]
  Jun 25 11:14:21 machine-name kernel:  do_one_initcall+0x49/0x174
  Jun 25 11:14:21 machine-name kernel:  ? _cond_resched+0x17/0x40
  Jun 25 11:14:21 machine-name kernel:  ? kmem_cache_alloc_trace+0x165/0x1d0
  Jun 25 11:14:21 machine-name kernel:  ? do_init_module+0x21/0x1ec
  Jun 25 11:14:21 machine-name kernel:  ? do_init_module+0x21/0x1ec
  Jun 25 11:14:21 machine-name kernel:  do_init_module+0x50/0x1ec
  Jun 25 11:14:21 machine-name kernel:  load_module+0x1588/0x1ab0
  Jun 25 11:14:21 machine-name kernel:  ? ima_post_read_file+0xb4/0xc0
  Jun 25 11:14:21 machine-name kernel:  ? 
security_kernel_post_read_file+0x62/0x70
  Jun 25 11:14:21 machine-name kernel:  SyS_finit_module+0x8a/0xe0
  Jun 25 11:14:21 machine-name kernel:  do_fast_syscall_32+0x7f/0x200
  Jun 25 11:14:21 machine-name kernel:  entry_SYSENTER_32+0x6b/0xbe
  Jun 25 11:14:21 machine-name kernel: EIP: 0xb7f4bd09
  Jun 25 11:14:21 machine-name kernel: EFLAGS: 0296 CPU: 1
  Jun 25 11:14:21 machine-name kernel: EAX: ffda EBX: 0013 ECX: 
b7d5da15 EDX: 
  Jun 25 11:14:21 machine-name kernel: ESI: 01f2c530 EDI: 01f17d50 EBP: