[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

That report is against the 4.8 kernel, which is not a supported kernel since a while. Since your system(s) has been upgraded many times, and it should be good to report about right actual config, instead of adding comment on that one. So closing that report. ** Changed in: linux (Ubuntu)

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

Nothing of the above works for me.. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10 hangs during boot To manage notifications about this bug go to:

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

Purging broadcom wifi drivers (dkms) worked for me -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10 hangs during boot To manage notifications about this bug go

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

Update: I've tried to pass some boot options to kernel, from all of them that I found 2 helped: acpi=off - Boots but wrong screen resolution. acpi=noirq - Works and screen resolution correct. So at the moment I'm staying with acpi=noirq and latest kernel, I hope this problem will be fixed... --

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

Also recovery mode of latest kernel boots little more (at least it post some messages before hang), please look 2017_02_03.JPG attached. After this lines cursor just blinks in lower left corner... ** Attachment added: "2017_02_03.JPG"

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

Dylan Borg (borgdylan), thank you for suggestion! I have AMD platform so no package "intel-microcode" installed, I found and removed "amd64-microcode" package but still have the same behavior... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

Try uninstalling the intel-microcode package. It did the trick for me. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10 hangs during boot To manage notifications

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

I'm unsure that I have same issue but seems that yes. I'm unable to boot latest kernel after upgrade to 16.10, It's just hangs with no disk activity, all latest updates where installed using 4.4.0-59 (it boots properly) but no luck. I also tried latest nouveau, latest available nvidia driver

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

That driver made it so I could no longer start X. So neither kernel would fully boot. Time was of the essence, so I just started fresh from Xenial until this bug is fixed. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

PPa is no longer needed. Use latest kernel from main archives -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10 hangs during boot To manage notifications about

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

I couldn't find the 4.8.0-25-generic kernel in that PPA, however. Can I just install the driver through 4.4, then boot back into 4.8.0-26-generic? Or is installing 4.8.0-25-generic a mandatory prerequisite? -- You received this bug notification because you are a member of Ubuntu Bugs, which is

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

Yes make sure your kernel is up to date by booting into 4.4 and install as I had indicated the nvidia driver 370.23. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

To be honest, I am not sure. This is the first kernel related issue I've had with Ubuntu. Is it worth trying the steps your proposed in comment #51 ? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

I notice that you have a Xeon E5. Is this related to -E/-EP CPUS? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10 hangs during boot To manage notifications about

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

I think I am hitting this as well. Upgraded from 16.04, to 16.10. The kernel that is installed is 4.8.0-26-generic I also have an nVidia GPU. Some strange behavior I noticed, however. If I boot into the recovery kernel for 4.8.0-26, and choose 'Fix broken packages', it hangs at a certain point

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

** Tags removed: kernel-key ** Tags added: kernel-da-key -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10 hangs during boot To manage notifications about this bug

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

@iamgrief: "Converting" i386 into amd64 is a real mess (such is written on the Internet). The various reinstall options in the setup are not changing the behavior, when just some debs are reinstalled. The VM continues crashing. The re-installation with formatting the disk works fine. I also made

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

@armin-kunaschik: is it a desktop? I mean I guess that kernel defines is it x32 or x64 and if you install dependent packages for kernel modules, some libraries etc, it would be working as x64. I suppose these dependencies would be automatically installed at the moment of installation of x64

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

I amusing amd64 here. the kernnel I pointed to has that setting disabled. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10 hangs during boot To manage

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

@iamgrief: Sorry, I can't, my Test VM is i386. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10 hangs during boot To manage notifications about this bug go to:

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

@armin-kunaschik: Could you please try this kernel? https://www.dropbox.com/sh/pt2vs6jp7c8rqzr/AAA7zm-UUBq4hX4OC-1_qSzUa This is 4.8.1 with disabled CONFIG_HARDENED_USERCOPY_PAGESPAN. Install it with >sudo dpkg -i *.deb -- You received this bug notification because you are a member of Ubuntu

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

kernel 4.8.0-25 doesn't work here either. See attached crash message. I tried booting from the 16.10 desktop install media with the "try" option. Everything runs fine with the install kernel. What's the difference? ** Attachment added: "Screenshot_2016-10-15_19-24-29.png"

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

The procedure I outlined is only needed if you have an NVIDIA GPU on your system. My case is special since this is a Broadwell-E system i.e. the CPU has no Intel HD Graphics so the NVIDIA GPU is the only GPU attached to the system. -- You received this bug notification because you are a member

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

I managed to boot! Steps are below: Install kernel 4.8.8-25-generic from https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/ppa/+packages Boot into the latest 4.4.0 kernel left over from Ubuntu 16.04 Get the 370.28 driver from NVIDIA (prior drivers lack support for Linux 4.7/4.8)

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

I meant 4.8.0-25-generic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10 hangs during boot To manage notifications about this bug go to:

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

This procedure will not work withe 4.8.0-22-generic that comes with 16.10 by default. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10 hangs during boot To manage

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

Nevermind. I can confirm that with that option (CONFIG_HARDENED_USERCOPY_PAGESPAN) DISABLED it boots well. I recompiled the kernel by myself and the only change was commenting out that option. It works well both in VMware and on bare metal. -- You received this bug notification because you are a

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

@borgdylan: Ok, I took the kernel from http://kernel.ubuntu.com/~kernel- ppa/mainline/v4.8.1/ there are both "ppa" and "mainline" word in the url, that confuses me :) Please tell me where I can grab the kernel with that option disabled? -- You received this bug notification because you are a

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

Does that kernel boot and is that from 4.8.1 kernel in the Canonical PPA? They say they turned it off in the changelog. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

In the kernel I have (4.8.1) it is really not set. In the 4.8.0 kernel it is also no set. CONFIG_HARDENED_USERCOPY is set to yes in both cases. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

Those are from the PPA of Ubuntu kernels, not mainline kernels. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10 hangs during boot To manage notifications about

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

@borgdylan How then this can be explained? > cat /boot/config-4.8.1-040801-generic|grep CONFIG_HARDENED_USERCOPY_PAGESPAN CONFIG_HARDENED_USERCOPY_PAGESPAN=y -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

I have patched the NVIDIA driver which now builds and installs for 4.8.0. The boot issue is not fixed even if passing nomodeset while booting. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

Side-Note: The NVIDIA driver cannot be installed for 4.8 when running on 4.4 as there is some header issue with a function being missing in DRM. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

4.5 failed as well. nomodeset will not work since NVIDIA have a non- modesetting driver as well. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10 hangs during boot

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

4.6 and 4.5.7 also fail. Trying 4.5 then giving up. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10 hangs during boot To manage notifications about this bug go

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

Also 4.6.7 fails to boot, trying 4.6 next. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10 hangs during boot To manage notifications about this bug go to:

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

@jsalisbury Both 4.7 and 4.8-rc1 failed to boot. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10 hangs during boot To manage notifications about this bug go to:

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

It should be usefull to know about the error(s); maybe you can switch to a console (alt + F?) and read the journal to grab these info: cat /var/log/syslog | less and also try booting with some kernel boot option, like nomodeset or acpi=off ... https://help.ubuntu.com/community/BootOptions --

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

CONFIG_HARDENED_USERCOPY_PAGESPAN is disabled in the Kernel PPA builds of the 4.7.1 kernel. That kernel does not boot for me. So in jmy case setting that to no will not fix it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

I meant 4.8.1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10 hangs during boot To manage notifications about this bug go to:

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

*Skylake -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10 hangs during boot To manage notifications about this bug go to:

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

I have a Broadwell-E CPU not Skylar. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10 hangs during boot To manage notifications about this bug go to:

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

I am on i5 but I don't think this is relevant. I am rebuilding the kernel CONFIG_HARDENED_USERCOPY_PAGESPAN, it's pretty slow in VM though... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

@borgdylan writes in bug 1627198 that he has an i7 6900K. My VM runs on an i5 6600 (in 32 bit mode). Can this be a Skylake issue? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

@jsalisbury - the issue is CONFIG_HARDENED_USERCOPY_PAGESPAN which is enabled in all kernels in ubuntu kernel ppa starting from 4.8 while it has to be disabled according to this issue: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1627198 I am a little bit lost. Where can I find the repo

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

I did some more reboots and got me a screenshot from 4.8rc1 crash. I switch to the first console (Ctrl-Alt-F1) as soon as the graphical login screen appears. I'll try to catch one for kernel 4.8.0-22. So far there is no output. The cursor at the login prompt simply disappears and the VM hangs.

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

@jsalisbury I can confirm that even 4.7.2 is good, I can boot with it without the subject issue. Adding yakkety-proposal repo has lead to installation of update for libapparmor package, but that didn't fix the issue. -- You received this bug notification because you are a member of Ubuntu Bugs,

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

Installing apparmor 2.10.95-4ubuntu5.1 did not change then problem for me. Kernel 4.8rc1 hangs too. Kernel 4.7 worked once for a few minutes and crashed the second time. See attachment for console output (screenshot from VMWare only) I remember I saw a similar message once with kernel 4.8.0-22,

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

After looking at those links, I realise that those debs need manual installation. That is no problem for me and I will be trying them ASAP. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

Are those links to apt repositories or do I have to use dpkg manually? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10 hangs during boot To manage notifications

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

Can you test the following two kernels? If 4.7 is good and 4.8-rc1 is bad, we can bisect between those two: 4.7 final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.7/ 4.8-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8-rc1/ ** Changed in: linux (Ubuntu) Importance: Undecided =>

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

If both those kernels are good, we can test later 4.8 release candidates. If they are both bad, we can test some of the 4.7 release candidates. ** Tags added: performing-bisect -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

I tried to see the boot log by removing "quiet splash" from the command line as well as setting the gfxmode to "text". Nothing showed up on the black screen apart from a pulsating "_". ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

I do have that version of apparmor, and did not have any update for apparmor since the upgrade. Do note that I upgraded once the official update prompt was issued. I did not use any beta/alpha version of 16.10. -- You received this bug notification because you are a member of Ubuntu Bugs, which

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

Also note that I have the proposed branch enabled. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10 hangs during boot To manage notifications about this bug go

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

Side note: That issue has been met during testing; and has been fixed by the latest apparmor package from yakkety-proposed. Check you really have it upgraded (2.10.95-4ubuntu5.1) and reboot with the 4.8 kernel, it should be fine. ** Changed in: linux (Ubuntu) Status: Confirmed =>

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

I tried the latest 4.8.1 kernel in the Canonical Kernel Team PPA. That kernel makes no progress w.r.t. this issue. Also using 'nomodeset' on the kernel command line has no effect. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

Same thing here in a VMWare virtual machine. It sometimes starts into X11 (xfce) and hangs after a view seconds. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: Linux 4.8 as in 16.10 hangs during boot To manage notifications

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

I will run the command. Do note that this will be done using the 4.4 kernel, not the 4.8 kernel which I could not boot as stated in the bug report. ** Tags added: apport-collected yakkety ** Description changed: - I have just upgraded to 16.10 and restarted my machine. The new 4.8 - kernel

[Bug 1633172] Re: Linux 4.8 as in 16.10 hangs during boot

Please let me know if I need to collect any system info etc. since I am using an NVIDIA gpu with a manually installed proprietary driver. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633172 Title: