*** This bug is a duplicate of bug 1759920 ***
https://bugs.launchpad.net/bugs/1759920
I was able to successfully boot the latest 17.10 kernel: linux-
image-4.13.0-39-generic
This issue is resolved.
Thanks!
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*** This bug is a duplicate of bug 1759920 ***
https://bugs.launchpad.net/bugs/1759920
We can also confirm, that kernel image 4.15.0-15.16 boots on one of our
affected machines.
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*** This bug is a duplicate of bug 1759920 ***
https://bugs.launchpad.net/bugs/1759920
** This bug has been marked a duplicate of bug 1759920
intel-microcode 3.20180312.0 causes lockup at login screen(w/
linux-image-4.13.0-37-generic)
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@jsalisbury, it boots!
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https://bugs.launchpad.net/bugs/1746418
Title:
System freezes when starting Xorg after installing linux-
image-4.13.0-32-generic
Status in linux
Can those affected by this bug, please test the following kernel:
https://launchpad.net/ubuntu/+source/linux/4.15.0-15.16/+build/14530348
To test the kernel, install both the linux-image and linux-image-extra
.deb packages.
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Hi, I am also affected by this bug but not on a Lenovo or Thinkpad
laptop. Mine is an Asus Zenbook UX301L running Ubuntu 17.10. Latest
working kernel version is 4.13.0-36-generic. Patches 37 and 38 cause the
freeze on boot. Adding option noibpb solves the issue (at least with
4.13.0-38-generic).
Looks like I've got this one too on Lenovo P50 with E3-1505M. I've
created #1759997 since I was not able to trace it immediately to this
bug.
The problem is that I had a fully working system until 3.20180312.0
microcode update arrived - which made my system essentially unbootable.
This was an
For anyone looking for a temporary/unsupported workaround on Thinkpads
without disabling the meltdown/spectre protections via noibpb, the
mainline kernels (4.14 and 4.15) seem to function.
You can find more information on running them at
https://wiki.ubuntu.com/Kernel/MainlineBuilds
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This bug is probably a duplicate of bug 1745349 in Xenial.
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https://bugs.launchpad.net/bugs/1746418
Title:
System freezes when starting Xorg after installing linux-
@jsalisbury : linux-image version 4.13.0-38.43 from artful-proposed
still hangs. :(
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Title:
System freezes when starting Xorg after
Would it be possible for you to test the proposed kernel and post back if it
resolves this bug?
See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
enable and use -proposed.
Thank you in advance!
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@jsalisbury: 96d520d boots!
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Title:
System freezes when starting Xorg after installing linux-
image-4.13.0-32-generic
Status in
I built a Artful test kernel with a revert of commit 96d520d. The test kernel
can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1746418
Can you test this kernel and see if it resolves this bug?
Note, to test this kernel, you need to install both the linux-image and
@jsalisbury, sorry - your test kernel still hangs (though it continues
to boot with "noibpb" passed as a kernel flag).
Also - do you know if https could be enabled for kernel.ubuntu.com?
While it's unlikely to happen, I wouldn't want some evil man in the
middle to corrupt those beautiful kernel
Hi there,
we tried this new kernel - our test machine still locked up during the
boot process while starting services.
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Title:
I built an Artful test kernel with a revert of commit: 8578993
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1746418
Can you test this kernel and see if it resolves this bug?
Note, to test this kernel, you need to install both the linux-image and
** Tags added: pti
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Title:
System freezes when starting Xorg after installing linux-
image-4.13.0-32-generic
Status in linux
4.13.0-36 hangs the system.
Adding "noibpb" to the kernel command line fixes the problem for me too.
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Title:
System freezes when
Before starting the bisect, can you see if the latest Artful kernel
still has the bug? It is in the updates as kernel version 4.13.0-36.
** Changed in: linux (Ubuntu)
Importance: Medium => High
** Changed in: linux (Ubuntu Artful)
Importance: Medium => High
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Thanks for testing. That could mean that a SAUCE patch caused this
regression. I review the git log. If nothing sticks out, we can
perform a regular kernel bisect of the Ubuntu kernels.
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I have tested 4.13 final from your link and it boots up.
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Title:
System freezes when starting Xorg after installing linux-
We now know the fix is in v4.14-rc1. Can folks affected by this bug
confirm that v4.13 final is bad? If it is, I'll start a reverse bisect
between 4.13 final and v4.14-rc1.
4.13 final is available from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.13/
** Changed in: linux (Ubuntu)
I've been having this same issue on ubuntu mate 17.10 on a thinkpad
T450s since kernel 4.13.0-25, and was booting with previous 4.13.0-21.
Just tried #14 suggestion (adding noibpb) and it fixed it here.
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Could it be the same issue as #1745349? It looks like it is the Spectre fix
that causes the issue.
The problem goes away for me on the 4.4.0-112 kernel with the "noibpb" kernel
argument on boot.
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4.14-rc1 also works here.
Any updates?
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Title:
System freezes when starting Xorg after installing linux-
image-4.13.0-32-generic
4.14-rc1 boots ok!
Also, now that Dominik mentions it, I'm not 100% that the hang is
happening in X - it could be in any of a number of startup programs.
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I can confirm that 4.14-rc1 is working fine on W540
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Title:
System freezes when starting Xorg after installing linux-
@Sandra Ray, can you give 4.14-rc1 a try:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14-rc1/
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Title:
System freezes when
I verified again that it is not X. The hang also occurs when booting
into multi-user.target and even after purging X.org.
I felt adventorous and did the following:
I booted into rescue mode. Then I let a shell loop start every service
in /lib/systemd/system with 1 sec delay. All service came up
Another update: 4.4.0-112 generic from 16.04 shows the same issue. I do
not know how to mark that in Launchpad.
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Title:
System
I have to add: We have quite a few laptops of this kind that show the
issue, but one doesn't. It is the same hardware and has the same
firmware versions.
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I can confirm the issue on a Lenovo T470s. However, it runs 16.04 LTS,
but with the same kernel package.
Disabling lightdm (and thus startup of X does not fix the issue here,
but the rest is identical.
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I can confirm that v4.14 final works.
Also, I made an obvious blunder in the initial report: I had to disable
*Wayland* after upgrading to 17.10, not Mir. That must've been a
crossover from an alternate universe where Ubuntu went with Mir :)
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I'd like to perform a "Reverse" bisect to figure out what commit fixes
this bug. We need to identify the last kernel version that had the bug,
and the first kernel version that fixed the bug.
Can you test the following kernels and report back:
v4.14 final:
I was able to gather the output by disabling plymoth screen:
[ 61.359631] NMI watchdog: Watchdog detected hard LOCKUP on cpu 4
[ 64.063967] watchdog: BUG: soft lockup - CPU6 stuck for 22s! [snap-exec:6105]
[ 64.063968] watchdog: BUG: soft lockup - CPU7 stuck for 22s! [systemd:6412]
[
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
System freezes when starting Xorg after installing
** Attachment added: "apport output"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1746418/+attachment/5046011/+files/apport.txt
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