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Date:      Thu, 03 Jan 2019 16:57:50 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 234595] Suspend/resume issues with PCI bus on ThinkPad T420
Message-ID:  <bug-234595-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D234595

            Bug ID: 234595
           Summary: Suspend/resume issues with PCI bus on ThinkPad T420
           Product: Base System
           Version: 12.0-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: kevinz5000@gmail.com

Created attachment 200741
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D200741&action=
=3Dedit
dmesg output

Issuing:

# zzz

On a ThinkPad T420, either with CSM or UEFI boot, gives:

pci0: failed to set ACPI power state D3 on \134_SB_.PCI0.VID_: AE_BAD_PARAM=
ETER
pcib0: failed to set ACPI power state D2 on \134_SB_.PCI0: AE_BAD_PARAMETER
acpi0: cleared fixed power button status

Then, either after the screen goes blank, or on resume, some things on the =
PCI
bus end up broken. For me, it's the ehci controller and ethernet (em)
controller.

ehci_interrupt: unrecoverable error, controller halted
cmd=3D0xffffffff
...
sts=3D0xffffffff
...
ien=3D0xffffffff
frindex=3D0xffffffff ctrdsegm=3D0xffffffff periodic=3D0xffffffff async=3D0x=
ffffffff
port 1 status=3D0xffffffff
port 2 status=3D0xffffffff
port 3 status=3D0xffffffff
...
ehci_interrupt: blocking interrupts 0x10

em does not give any dmesg output, continues to show up in ifconfig, but do=
es
not seem to work.

Suspend/resume worked on this machine in 11.2-RELEASE. I suspect something
broke with the ACPI upgrade, but will keep investigating.

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