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apport-collect 1791513

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This change has been made by an automated script, maintained by the
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** Changed in: linux (Ubuntu)
       Status: New => Incomplete

** Tags added: bionic

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https://bugs.launchpad.net/bugs/1791513

Title:
  system hang after resume from standby with i915 in bionic

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I've upgraded my i7-2600 system (cpu with integrated i915) from ubuntu
  16.04 x86_64 to 18.04.1 x86_64 using do-release-upgrade.

  It works fine except hanging after resume from standby. The system
  does to standby (suspend to ram) when idle automatically. When it text
  console, it resumes fine from pm-suspend, but after switching to
  graphics the system hangs (magic sysrq does not work either). The
  problem occurs with 4.15.0-33-generic and is also present with
  mainline 4.18.7.

  kern.log ends with: "kernel: PM: suspend entry (deep)". When resuming
  into text console first, I get

  kernel: [  117.272524] PM: suspend entry (deep)
  kernel: [  117.272526] PM: Syncing filesystems ... done.
  kernel: [  117.354945] Freezing user space processes ... (elapsed 0.001 
seconds) done.
  kernel: [  117.356708] OOM killer disabled.
  kernel: [  117.356709] Freezing remaining freezable tasks ... (elapsed 0.001 
seconds) done.
  kernel: [  117.357920] Suspending console(s) (use no_console_suspend to debug)
  kernel: [  117.359239] serial 00:05: disabled
  kernel: [  117.359734] parport_pc 00:02: disabled
  kernel: [  117.388004] sd 3:0:0:0: [sdb] Synchronizing SCSI cache
  kernel: [  117.388119] sd 3:0:0:0: [sdb] Stopping disk
  kernel: [  117.395014] sd 2:0:0:0: [sda] Synchronizing SCSI cache
  kernel: [  117.395123] sd 2:0:0:0: [sda] Stopping disk
  kernel: [  118.008264] ACPI: Preparing to enter system sleep state S3
  kernel: [  118.009459] PM: Saving platform NVS memory
  kernel: [  118.009851] Disabling non-boot CPUs ...
  kernel: [  118.025074] smpboot: CPU 1 is now offline
  kernel: [  118.049113] smpboot: CPU 2 is now offline
  kernel: [  118.073695] smpboot: CPU 3 is now offline
  kernel: [  118.096142] IRQ 16: no longer affine to CPU4
  kernel: [  118.097170] smpboot: CPU 4 is now offline
  kernel: [  118.120153] IRQ 25: no longer affine to CPU5
  kernel: [  118.120163] IRQ 30: no longer affine to CPU5
  kernel: [  118.120168] IRQ 31: no longer affine to CPU5
  kernel: [  118.120174] IRQ 33: no longer affine to CPU5
  kernel: [  118.120182] IRQ 38: no longer affine to CPU5
  kernel: [  118.121192] smpboot: CPU 5 is now offline
  kernel: [  118.144160] IRQ 23: no longer affine to CPU6
  kernel: [  118.144165] IRQ 27: no longer affine to CPU6
  kernel: [  118.144173] IRQ 32: no longer affine to CPU6
  kernel: [  118.144186] IRQ 37: no longer affine to CPU6
  kernel: [  118.145194] smpboot: CPU 6 is now offline
  kernel: [  118.169244] smpboot: CPU 7 is now offline
  kernel: [  118.170914] ACPI: Low-level resume complete
  kernel: [  118.170954] PM: Restoring platform NVS memory
  kernel: [  118.172220] Enabling non-boot CPUs ...
  kernel: [  118.172262] x86: Booting SMP configuration:
  kernel: [  118.172262] smpboot: Booting Node 0 Processor 1 APIC 0x2
  kernel: [  118.175214]  cache: parent cpu1 should not be sleeping
  kernel: [  118.175439] CPU1 is up
  kernel: [  118.175481] smpboot: Booting Node 0 Processor 2 APIC 0x4
  kernel: [  118.178697]  cache: parent cpu2 should not be sleeping
  kernel: [  118.178941] CPU2 is up
  kernel: [  118.178988] smpboot: Booting Node 0 Processor 3 APIC 0x6
  kernel: [  118.182312]  cache: parent cpu3 should not be sleeping
  kernel: [  118.182576] CPU3 is up
  kernel: [  118.182623] smpboot: Booting Node 0 Processor 4 APIC 0x1
  kernel: [  118.185397]  cache: parent cpu4 should not be sleeping
  kernel: [  118.185713] CPU4 is up
  kernel: [  118.185762] smpboot: Booting Node 0 Processor 5 APIC 0x3
  kernel: [  118.188483]  cache: parent cpu5 should not be sleeping
  kernel: [  118.188788] CPU5 is up
  kernel: [  118.188823] smpboot: Booting Node 0 Processor 6 APIC 0x5
  kernel: [  118.191562]  cache: parent cpu6 should not be sleeping
  kernel: [  118.191888] CPU6 is up
  kernel: [  118.191926] smpboot: Booting Node 0 Processor 7 APIC 0x7
  kernel: [  118.194646]  cache: parent cpu7 should not be sleeping
  kernel: [  118.194994] CPU7 is up
  kernel: [  118.202014] ACPI: Waking up from system sleep state S3
  kernel: [  118.222689] usb usb3: root hub lost power or was reset
  kernel: [  118.222692] usb usb4: root hub lost power or was reset
  kernel: [  118.223745] parport_pc 00:02: activated
  kernel: [  118.225587] sd 2:0:0:0: [sda] Starting disk
  kernel: [  118.225622] sd 3:0:0:0: [sdb] Starting disk
  kernel: [  118.226036] serial 00:05: activated
  kernel: [  118.388882] ata7.01: ACPI cmd ef/03:46:00:00:00:b0 (SET FEATURES) 
filtered out
  kernel: [  118.392639] r8169 0000:05:00.0 eth0: link down
  kernel: [  118.393320] ata7.00: ACPI cmd ef/03:46:00:00:00:a0 (SET FEATURES) 
filtered out
  kernel: [  118.398576] ata7.00: configured for UDMA/33
  kernel: [  118.403760] ata7.01: configured for UDMA/66
  kernel: [  118.560972] ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
  kernel: [  118.568140] ata5.00: configured for UDMA/100
  kernel: [  118.726420] usb 3-1: reset low-speed USB device number 2 using 
xhci_hcd
  kernel: [  119.210956] usb 3-2: reset high-speed USB device number 3 using 
xhci_hcd
  kernel: [  119.727434] usb 3-2.4: reset high-speed USB device number 5 using 
xhci_hcd
  kernel: [  119.834158] usblp1: removed
  kernel: [  120.095832] usb 3-2.1: reset low-speed USB device number 4 using 
xhci_hcd
  kernel: [  120.397730] OOM killer enabled.
  kernel: [  120.397731] Restarting tasks ... done.
  kernel: [  120.399049] PM: suspend exit
  kernel: [  120.402498] usblp 3-2.4:1.0: usblp1: USB Bidirectional printer dev 
5 if 0 alt 0 proto 2 vid 0x04F9 pid 0x0061
  kernel: [  120.714644] r8169 0000:05:00.0 eth0: link up
  kernel: [  123.602790] ata4: link is slow to respond, please be patient 
(ready=0)
  kernel: [  123.610797] ata3: link is slow to respond, please be patient 
(ready=0)
  kernel: [  123.722895] ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
  kernel: [  123.725023] ata4.00: configured for UDMA/133
  kernel: [  124.511519] ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
  kernel: [  124.524458] ata3.00: configured for UDMA/133

  Then pressing Ctrl-alt-f7 and the system hangs immediately or within
  seconds.

  Workaround: add to kernel parameters in /etc/default/grub:

  i915.enable_rc6=0 i915.enable_dc=0 i915.verbose_state_checks=1

  Description:  Ubuntu 18.04.1 LTS
  Release:      18.04

  linux-image-4.15.0-33-generic:
    Installiert:           4.15.0-33.36

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