| 2018-01-12 19:15:35 |
Chris J Arges |
bug |
|
|
added bug |
| 2018-01-12 19:15:44 |
Chris J Arges |
nominated for series |
|
Ubuntu Xenial |
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| 2018-01-12 19:15:44 |
Chris J Arges |
bug task added |
|
linux (Ubuntu Xenial) |
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| 2018-01-12 19:16:07 |
Chris J Arges |
description |
[impact]
4.4.0-101+ (also 4.4.0-109) Ubuntu kernels no longer can use qemu-nbd to mount virtual disks onto a local filesystem (see test case for reproducer).
I was able to bisect the issue down to 907196aba0d891c6d580abe69c36d3b4fd512dcc. Reverting this from 4.4 fixes the issue.
In addition this is also reported in debian here:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=829532
[test case]
# given a vmdk disk with multiple partitions
sudo modprobe nbd
sudo qemu-nbd -d /dev/nbd0
sudo qemu-nbd -r -c /dev/nbd0 disk.vmdk
ls /dev/nbd0*
# here you won't see multiple partition, nor be able to mount a partition locally |
[impact]
4.4.0-101+ (also 4.4.0-109) Ubuntu kernels no longer can use qemu-nbd to mount virtual disks onto a local filesystem (see test case for reproducer).
I was able to bisect the issue down to 907196aba0d891c6d580abe69c36d3b4fd512dcc (a cherry-pick from 37091fdd831f28a6509008542174ed324dd645bc). Reverting this from 4.4 fixes the issue.
In addition this is also reported in debian here:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=829532
[test case]
# given a vmdk disk with multiple partitions
sudo modprobe nbd
sudo qemu-nbd -d /dev/nbd0
sudo qemu-nbd -r -c /dev/nbd0 disk.vmdk
ls /dev/nbd0*
# here you won't see multiple partition, nor be able to mount a partition locally |
|
| 2018-01-12 19:16:38 |
Chris J Arges |
description |
[impact]
4.4.0-101+ (also 4.4.0-109) Ubuntu kernels no longer can use qemu-nbd to mount virtual disks onto a local filesystem (see test case for reproducer).
I was able to bisect the issue down to 907196aba0d891c6d580abe69c36d3b4fd512dcc (a cherry-pick from 37091fdd831f28a6509008542174ed324dd645bc). Reverting this from 4.4 fixes the issue.
In addition this is also reported in debian here:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=829532
[test case]
# given a vmdk disk with multiple partitions
sudo modprobe nbd
sudo qemu-nbd -d /dev/nbd0
sudo qemu-nbd -r -c /dev/nbd0 disk.vmdk
ls /dev/nbd0*
# here you won't see multiple partition, nor be able to mount a partition locally |
[impact]
4.4.0-101+ (also 4.4.0-109) Ubuntu kernels no longer can use qemu-nbd to mount virtual disks onto a local filesystem (see test case for reproducer). 4.4.0-98 works without issue.
I was able to bisect the issue down to 907196aba0d891c6d580abe69c36d3b4fd512dcc (a cherry-pick from 37091fdd831f28a6509008542174ed324dd645bc). Reverting this from 4.4 fixes the issue.
Installing the mainline kernel shows mainline is _not_ affected by this bug.
In addition this is also reported in debian here:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=829532
[test case]
# given a vmdk disk with multiple partitions
sudo modprobe nbd
sudo qemu-nbd -d /dev/nbd0
sudo qemu-nbd -r -c /dev/nbd0 disk.vmdk
ls /dev/nbd0*
# here you won't see multiple partition, nor be able to mount a partition locally |
|
| 2018-01-12 19:30:04 |
Ubuntu Kernel Bot |
linux (Ubuntu): status |
New |
Incomplete |
|
| 2018-01-12 19:30:05 |
Ubuntu Kernel Bot |
linux (Ubuntu Xenial): status |
New |
Incomplete |
|
| 2018-01-12 20:18:07 |
Joseph Salisbury |
linux (Ubuntu): importance |
Undecided |
High |
|
| 2018-01-12 20:18:11 |
Joseph Salisbury |
linux (Ubuntu Xenial): importance |
Undecided |
High |
|
| 2018-01-12 20:18:15 |
Joseph Salisbury |
linux (Ubuntu Xenial): status |
Incomplete |
Triaged |
|
| 2018-01-12 20:18:18 |
Joseph Salisbury |
linux (Ubuntu): status |
Incomplete |
Triaged |
|
| 2018-01-12 20:18:24 |
Joseph Salisbury |
tags |
|
kernel-da-key |
|
| 2018-02-20 22:36:27 |
Nathan O'Sullivan |
bug |
|
|
added subscriber Nathan O'Sullivan |
| 2019-01-15 12:14:12 |
heavendang |
bug watch added |
|
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=824553 |
|
| 2019-07-24 20:21:26 |
Brad Figg |
tags |
kernel-da-key |
cscc kernel-da-key |
|
