btrfs-transaction hangs

[Stoian Dan]

After installing Ubuntu 15.04 a few times, I'm always having the same problem, after booting the system several times, it always hangs at plymouth. Before the problem takes place I always notice some flickering on the screen after plymouth The problem persists even with the nomodeset parameter or with recovery mode. I'm using a Acer Asipire V5-552G.
---
ApportVersion: 2.17.1-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: dan 1432 F.... pulseaudio
 /dev/snd/controlC0: dan 1432 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 15.04
HibernationDevice: RESUME=UUID=6612b8cc-dabb-4a5c-9018-4517e9172bec
InstallationDate: Installed on 2015-04-16 (1 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Beta amd64 (20150326)
MachineType: Acer Aspire V5-552G
Package: linux (not installed)
ProcFB:
 0 radeondrmfb
 1 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.19.0-14-generic.efi.signed root=UUID=c4aa2016-8e0d-4d69-8acb-1eb9c8aa886c ro rootflags=subvol=@ quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.19.0-14.14-generic 3.19.3
RelatedPackageVersions:
 linux-restricted-modules-3.19.0-14-generic N/A
 linux-backports-modules-3.19.0-14-generic N/A
 linux-firmware 1.143
Tags: vivid
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
Uname: Linux 3.19.0-14-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 12/23/2013
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: V2.07
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Dazzle_RL
dmi.board.vendor: Acer
dmi.board.version: Type2 - A01 Board Version
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsydeCorp.:bvrV2.07:bd12/23/2013:svnAcer:pnAspireV5-552G:pvrV2.07:rvnAcer:rnDazzle_RL:rvrType2-A01BoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
dmi.product.name: Aspire V5-552G
dmi.product.version: V2.07
dmi.sys.vendor: Acer

[Martin Pitt (pitti)]

Does this also happen if you boot with upstart? (You can choose that from the grub boot menu under "Advanced options").

Please also boot without "quiet splash $vt_handoff" -- does your computer boot then? If so, it's a graphics/plymouth problem, if not this should show where it's hanging.

/usr/share/doc/systemd/README.Debian explains how to run the debug shell -- please do a boot with "systemd.debug-shell", and when it hangs switch to it with Ctrl-Alt-F9 and save the output of "systemctl list-jobs" and "journalctl" and attach them here. Thanks!

[Stoian Dan (danmihaistoian)]

Problem persists even with upstart or without quiet and splash. Booting with systemd.debug-shell also didn't help to much. After a couple of times problem takes place even when booting a Ubuntu 15.04 live usb. To make sure my laptop is ok I did try to boot with the same usb a Ubuntu 14.10 image, all works fine.
Here is a onedrive link to a screen capture where it hangs:
http://1drv.ms/1aTzFgt
also after a while there are a lot of "f" on the screen
http://1drv.ms/1aTzZvN

I'm sorry for providing information via a photo.

[Martin Pitt (pitti)]

Ah, indeed it seems btrfs is unhappy on your machine. Setting back to New for now, as I don't know how to debug this kernel/fs bug from here on, I'm afraid.

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1444070

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.0 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.0-vivid/

[Stoian Dan (danmihaistoian)]

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[Stoian Dan (danmihaistoian)]

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[Stoian Dan (danmihaistoian)]

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[Stoian Dan (danmihaistoian)]

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[Stoian Dan (danmihaistoian)]

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[Stoian Dan (danmihaistoian)]

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[Stoian Dan (danmihaistoian)]

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[Stoian Dan (danmihaistoian)]

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[Stoian Dan (danmihaistoian)]

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[Stoian Dan (danmihaistoian)]

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[Stoian Dan (danmihaistoian)]

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[Stoian Dan (danmihaistoian)]

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[Stoian Dan (danmihaistoian)]

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[Stoian Dan (danmihaistoian)]

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[Stoian Dan (danmihaistoian)]

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[Stoian Dan (danmihaistoian)]

I had to reinstall the whole system but... I did the apport-collect 1444070 and changed the status to confirmed and went to:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.0-vivid/
from where I grabed and install:
linux-headers-4.0.0-040000_4.0.0-040000.201504121935_all
linux-image-4.0.0-040000-generic_4.0.0-040000.201504121935_amd64
linux-headers-4.0.0-040000-generic_4.0.0-040000.201504121935_amd64
with sudo dpkg -i linux*.deb . Did a restart and if I do a uname -r I get 4.0.0-040000-generic
Should I provide any other info? I works ok for now but so did kernel 3.19 for a couple of boot up times, I will wait a while and add a comment

[Stoian Dan (danmihaistoian)]

kernel-fixed-upstream

[Andrej Rohaŭ (arohau)]

Attached dmesg from hung task. What's more disturbing is that it happened after my system rebooted unexpectedly.

[Andrej Rohaŭ (arohau)]

http://www.spinics.net/lists/linux-btrfs/msg43437.html seems to be related.

[Joseph Salisbury (jsalisbury)]

Can folks affected by this bug test the upstream stable 3.19.5 kernel? It can be downloaded from:

http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.19.5-vivid/

[Andrej Rohaŭ (arohau)]

Managed to reproduce the problem by simply doing an unclean shutdown.

linux-image-3.19.0-15-generic 3.19.0-15.15 - locks up
linux-image-3.19.5-031905-generic 3.19.5-031905.201504211114 - booted fine

Before that I managed to clean the filesystem using a mount on Debian Jessie netboot with an old kernel.