Computer does not recover from suspend

[unman]

Qubes OS version:

R4.0 rc5

Affected component(s):

Resume after suspend

---

Steps to reproduce the behavior:

Suspend by shutting lid

Expected behavior:

Resume after suspend should work

Actual behavior:

Computer does not recover.
Screen stays black and no response to keyboard ot trackpad use.
Fans do not spin up.
Sometimes computer will not restart.

General notes:

I do not think this is the same issue as #3705 since symptoms are slightly different.
This is an old x230, with RAM at only 8GB.
It worked flawlessly under rc5 until I applied updates from current-testing.
On previous packages from current, suspend/restore worked every time.
Since the update it fails every time.
I see nothing relevant in the logs.

Obviously i suspect the update to xen-4.8.3-4.
I'll revert the update and downgrade back to 8.3-3 to see what effect that has.

---

Related issues:

#3705 - but I think this is not the same.

[unman]

I downgraded all relevant xen packages to 4.8.3-3 and previous functionality has been restored.
All seems to work fine now - at least, a couple of suspend/resume cycles have worked as expected, whereas with 3-4 they never worked.

[marmarek]

@HW42 xen-4.8.3-4 breaks suspend.

[tasket]

Is 4.8.3-4 the Spectre mitigation update?

@unman Lenovo recently released BIOS updates with Spectre mitigation support for Ivy Bridge Thinkpads like the x230. Have you updated?

[donob4n]

Hi,

I also had suspend/resume broken and booting an older kernel (4.14.13-2) works fine.

[andrewdavidwong]

Is 4.8.3-4 the Spectre mitigation update?

According to QSB 37, it's 4.8.3-3.

[o-]

Hi, I can confirm I had the same issue with X1 5th gen carbon. I believe it was after microcode_ctl update, rather than xen update, but am not sure. Wakeup only worked when I shut down every VM, (even sys-usb and sys-net). Latest bios upgrade by lenovo fixed the issue. Seems to reliably work again.

[Simon-Davies]

I was also experiencing this issue on my Dell XPS 15 but flashing the latest Bios update fixed it for me.

[x4lldux]

I'm having the same problem with Asus Z10PE-D16 WS motherboard.
I've tested this in those configurations and it seems to be xen-4.8.3-4 related:
xen-4.8.3-4 & microcode update: resuming doesn't work 👎
xen-4.8.3-4 & no microcode update: resuming doesn't work 👎
xen-4.8.3-3 & microcode update: resuming works 👍
xen-4.8.3-3 & no microcode update: resuming works 👍

[Simon-Davies]

@x4lldux Have you tried updating your system's Bios firmware by flashing the latest version from the manufacturer? This fixed the issue for me.

[x4lldux]

@Simon-Davies should have mentioned ealier, already have the latest version and that doesn't change the above results.

[HW42]

QubesOS/qubes-vmm-xen#35 should fix this in practice. But is strictly not complete:

Jan Beulich:

Of course none of this addresses a possible NMI or #MC occurring before the microcode loading.

Edit: Fixed link to PR.

[marmarek]

In what cases those could happen?

[HW42]

TBH I don't know. AFAIU one case would be hardware faults (RAM or bus errors). Not sure if Xen is using any breakpoint tricks ore something similar for profiling and if this can be active during early resume.

FWIW: I never observed any such problems during testing.

Based on https://lists.xenproject.org/archives/html/xen-devel/2018-04/msg00836.html I assume that Jan or Andrew will come up with a follow-up patch to disable IBRS/IBPB during suspend.

[qubesos-bot]

Automated announcement from builder-github

The package xen_4.8.3-5+deb9u1 has been pushed to the r4.0 testing repository for the Debian template.
To test this update, first enable the testing repository in /etc/apt/sources.list.d/qubes-*.list by uncommenting the line containing stretch-testing (or appropriate equivalent for your template version), then use the standard update command:

sudo apt-get update && sudo apt-get dist-upgrade

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package python2-xen-4.8.3-5.fc25 has been pushed to the r4.0 testing repository for dom0.
To test this update, please install it with the following command:

sudo qubes-dom0-update --enablerepo=qubes-dom0-current-testing

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The component vmm-xen (including package python2-xen-4.8.3-5.fc26) has been pushed to the r4.0 testing repository for the Fedora template.
To test this update, please install it with the following command:

sudo yum update --enablerepo=qubes-vm-r4.0-current-testing

Changes included in this update

[donob4n]

@marmarek I'm pretty confused

The package python2-xen-4.8.3-5.fc25 has been pushed to the r4.0 testing repository for dom0.

I checked it but I don't have this package installed in dom0. Is this normal? Has it relation with this bug?

I'm running an old kernel due this bug and I would like to run the latest version.

[marmarek]

I checked it but I don't have this package installed in dom0. Is this normal?

Yes. Notification script is confused about multiple packages from a single source and just pick the first one. What is important is a package version (xen*-4.8.3-5.fc26)

[mirrorway]

The updates fixed my resume issues. :)

[donob4n]

This fixed also for me great :)

[qubesos-bot]

Automated announcement from builder-github

The package vmm-xen has been pushed to the r4.0 testing repository for the CentOS centos7 template.
To test this update, please install it with the following command:

sudo yum update --enablerepo=qubes-vm-r4.0-current-testing

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package vmm-xen has been pushed to the r4.0 stable repository for the Fedora centos7 template.
To install this update, please use the standard update command:

sudo yum update

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The component vmm-xen (including package python2-xen-4.8.3-7.fc26) has been pushed to the r4.0 stable repository for the Fedora template.
To install this update, please use the standard update command:

sudo yum update

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package xen_2001:4.8.3-7+deb9u1 has been pushed to the r4.0 stable repository for the Debian template.
To install this update, please use the standard update command:

sudo apt-get update && sudo apt-get dist-upgrade

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package python2-xen-4.8.3-8.fc25 has been pushed to the r4.0 stable repository for dom0.
To install this update, please use the standard update command:

sudo qubes-dom0-update

Or update dom0 via Qubes Manager.

Changes included in this update