[Kernel-packages] [Bug 1667078] Re: bcache device numbers increase by 16

2017-03-16 Thread Launchpad Bug Tracker 
This bug was fixed in the package linux - 4.10.0-13.15

---
linux (4.10.0-13.15) zesty; urgency=low

  [ Tim Gardner ]

  * Release Tracking Bug
- LP: #1671614

  * ehci-platform needed in usb-modules udeb (LP: #1671589)
- d-i: add ehci-platform to usb-modules

  * irqchip/gic-v3-its: Enable cacheable attribute Read-allocate hints
(LP: #1671598)
- irqchip/gic-v3-its: Enable cacheable attribute Read-allocate hints

  * iommu: Fix static checker warning in iommu_insert_device_resv_regions
(LP: #1671599)
- iommu: Fix static checker warning in iommu_insert_device_resv_regions

  * QDF2400: Fix panic introduced by erratum 1003 (LP: #1671602)
- arm64: Avoid clobbering mm in erratum workaround on QDF2400

  * QDF2400 PCI ports require ACS quirk (LP: #1671601)
- PCI: Add ACS quirk for Qualcomm QDF2400 and QDF2432

  * tty: pl011: Work around QDF2400 E44 stuck BUSY bit (LP: #1671600)
- tty: pl011: Work around QDF2400 E44 stuck BUSY bit

  * CVE-2017-2636
- tty: n_hdlc: get rid of racy n_hdlc.tbuf

  * Sync virtualbox to 5.1.16-dfsg-1 in zesty (LP: #1671470)
- ubuntu: vbox -- Update to 5.1.16-dfsg-1

 -- Tim Gardner   Thu, 09 Mar 2017 06:16:24
-0700

** Changed in: linux (Ubuntu)
   Status: Confirmed => Fix Released

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2017-2636

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1667078

Title:
  bcache device numbers increase by 16

Status in linux package in Ubuntu:
  Fix Released

Bug description:
  On 4.10 kernel, when creating bcache devices, each device kname is now
  incremented by 16

  /dev/bcache0
  /dev/bcache16
  /dev/bcache32

  etc.

  This was to support partitioning of bcache devices[1], however, This
  also will limit the number of bcache devices and doesn't match how
  other block devices name themselves, md for example, you get md0p1,
  md1p1, md2p1 etc.

  Ideally we'd continue to see devices increment by 1, and ensure we
  allocate partition numbers as well.

  I think the patch[1] below is incomplete; I think we also want to
  shift the minor value by the number of partitions when we set the
  disk_name value.

  drivers/md/bcache/super.c:

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor);

  to

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor >>
  4);

  This should keep the devname index based, while creating the device node with
  the appropriate space for partitions, like this:

  $ ls -al /dev/bcache*
  brw-rw 1 root disk 251,  0 Feb 22 17:40 /dev/bcache0
  brw-rw 1 root disk 251,  1 Feb 22 17:40 /dev/bcache0p1
  brw-rw 1 root disk 251, 16 Feb 22 17:40 /dev/bcache1
  brw-rw 1 root disk 251, 17 Feb 22 17:40 /dev/bcache1p1

  
  1. https://www.spinics.net/lists/linux-bcache/msg04267.html

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: linux-image-4.10.0-8-generic 4.10.0-8.10
  ProcVersionSignature: User Name 4.10.0-8.10-generic 4.10.0-rc8
  Uname: Linux 4.10.0-8-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Feb 22 17:36 seq
   crw-rw 1 root audio 116, 33 Feb 22 17:36 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.4-0ubuntu2
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CRDA: N/A
  Date: Wed Feb 22 17:41:18 2017
  Ec2AMI: ami-056c
  Ec2AMIManifest: FIXME
  Ec2AvailabilityZone: nova
  Ec2InstanceType: m1.small
  Ec2Kernel: unavailable
  Ec2Ramdisk: unavailable
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: OpenStack Foundation OpenStack Nova
  PciMultimedia:
   
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-8-generic 
root=UUID=15278dff-350d-42a1-8767-1424dfca7894 ro console=tty1 console=ttyS0
  RelatedPackageVersions:
   linux-restricted-modules-4.10.0-8-generic N/A
   linux-backports-modules-4.10.0-8-generic  N/A
   linux-firmwareN/A
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: Ubuntu-1.8.2-1ubuntu1
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-xenial
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrUbuntu-1.8.2-1ubuntu1:bd04/01/2014:svnOpenStackFoundation:pnOpenStackNova:pvr13.1.2:cvnQEMU:ct1:cvrpc-i440fx-xenial:
  dmi.product.name: OpenStack Nova

[Kernel-packages] [Bug 1667078] Re: bcache device numbers increase by 16

2017-03-02 Thread Stefan Bader 
@Ryan, yeah, they did not for bcache. But this code is only executed
once during the lifetime of a device. So I would not worry too much
about optimization here. Might even be that gcc cleverly does this
anyway. :)

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1667078

Title:
  bcache device numbers increase by 16

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  On 4.10 kernel, when creating bcache devices, each device kname is now
  incremented by 16

  /dev/bcache0
  /dev/bcache16
  /dev/bcache32

  etc.

  This was to support partitioning of bcache devices[1], however, This
  also will limit the number of bcache devices and doesn't match how
  other block devices name themselves, md for example, you get md0p1,
  md1p1, md2p1 etc.

  Ideally we'd continue to see devices increment by 1, and ensure we
  allocate partition numbers as well.

  I think the patch[1] below is incomplete; I think we also want to
  shift the minor value by the number of partitions when we set the
  disk_name value.

  drivers/md/bcache/super.c:

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor);

  to

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor >>
  4);

  This should keep the devname index based, while creating the device node with
  the appropriate space for partitions, like this:

  $ ls -al /dev/bcache*
  brw-rw 1 root disk 251,  0 Feb 22 17:40 /dev/bcache0
  brw-rw 1 root disk 251,  1 Feb 22 17:40 /dev/bcache0p1
  brw-rw 1 root disk 251, 16 Feb 22 17:40 /dev/bcache1
  brw-rw 1 root disk 251, 17 Feb 22 17:40 /dev/bcache1p1

  
  1. https://www.spinics.net/lists/linux-bcache/msg04267.html

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: linux-image-4.10.0-8-generic 4.10.0-8.10
  ProcVersionSignature: User Name 4.10.0-8.10-generic 4.10.0-rc8
  Uname: Linux 4.10.0-8-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Feb 22 17:36 seq
   crw-rw 1 root audio 116, 33 Feb 22 17:36 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.4-0ubuntu2
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CRDA: N/A
  Date: Wed Feb 22 17:41:18 2017
  Ec2AMI: ami-056c
  Ec2AMIManifest: FIXME
  Ec2AvailabilityZone: nova
  Ec2InstanceType: m1.small
  Ec2Kernel: unavailable
  Ec2Ramdisk: unavailable
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: OpenStack Foundation OpenStack Nova
  PciMultimedia:
   
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-8-generic 
root=UUID=15278dff-350d-42a1-8767-1424dfca7894 ro console=tty1 console=ttyS0
  RelatedPackageVersions:
   linux-restricted-modules-4.10.0-8-generic N/A
   linux-backports-modules-4.10.0-8-generic  N/A
   linux-firmwareN/A
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: Ubuntu-1.8.2-1ubuntu1
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-xenial
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrUbuntu-1.8.2-1ubuntu1:bd04/01/2014:svnOpenStackFoundation:pnOpenStackNova:pvr13.1.2:cvnQEMU:ct1:cvrpc-i440fx-xenial:
  dmi.product.name: OpenStack Nova
  dmi.product.version: 13.1.2
  dmi.sys.vendor: OpenStack Foundation

To manage notifications about this bug go to:
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Re: [Kernel-packages] [Bug 1667078] Re: bcache device numbers increase by 16

2017-03-02 Thread Ryan Harper 
On Thu, Mar 2, 2017 at 4:56 AM, Stefan Bader 
wrote:

> I created a modified patch and verified that
> - bcache base devices again are numbered 0,1,...
> - partioning a bcache device creates the expected bcacheXpY devices
> Will submit this change upstream (and for pre-stable zesty).
>
> ** Patch added: "0001-bcache-Fix-bcache-device-names.patch"
>https://bugs.launchpad.net/ubuntu/+source/linux/+bug/
> 1667078/+attachment/4829714/+files/0001-bcache-Fix-bcache-
> device-names.patch
>
>
If possible, it would be good to avoid the div; that's why I had used a
shift.

In other drivers, they define a PART_BITS 4 or so
and use that to shift up or down to get index vs. minor.


> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1667078
>
> Title:
>   bcache device numbers increase by 16
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/
> 1667078/+subscriptions
>

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1667078

Title:
  bcache device numbers increase by 16

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  On 4.10 kernel, when creating bcache devices, each device kname is now
  incremented by 16

  /dev/bcache0
  /dev/bcache16
  /dev/bcache32

  etc.

  This was to support partitioning of bcache devices[1], however, This
  also will limit the number of bcache devices and doesn't match how
  other block devices name themselves, md for example, you get md0p1,
  md1p1, md2p1 etc.

  Ideally we'd continue to see devices increment by 1, and ensure we
  allocate partition numbers as well.

  I think the patch[1] below is incomplete; I think we also want to
  shift the minor value by the number of partitions when we set the
  disk_name value.

  drivers/md/bcache/super.c:

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor);

  to

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor >>
  4);

  This should keep the devname index based, while creating the device node with
  the appropriate space for partitions, like this:

  $ ls -al /dev/bcache*
  brw-rw 1 root disk 251,  0 Feb 22 17:40 /dev/bcache0
  brw-rw 1 root disk 251,  1 Feb 22 17:40 /dev/bcache0p1
  brw-rw 1 root disk 251, 16 Feb 22 17:40 /dev/bcache1
  brw-rw 1 root disk 251, 17 Feb 22 17:40 /dev/bcache1p1

  
  1. https://www.spinics.net/lists/linux-bcache/msg04267.html

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: linux-image-4.10.0-8-generic 4.10.0-8.10
  ProcVersionSignature: User Name 4.10.0-8.10-generic 4.10.0-rc8
  Uname: Linux 4.10.0-8-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Feb 22 17:36 seq
   crw-rw 1 root audio 116, 33 Feb 22 17:36 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.4-0ubuntu2
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CRDA: N/A
  Date: Wed Feb 22 17:41:18 2017
  Ec2AMI: ami-056c
  Ec2AMIManifest: FIXME
  Ec2AvailabilityZone: nova
  Ec2InstanceType: m1.small
  Ec2Kernel: unavailable
  Ec2Ramdisk: unavailable
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: OpenStack Foundation OpenStack Nova
  PciMultimedia:
   
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-8-generic 
root=UUID=15278dff-350d-42a1-8767-1424dfca7894 ro console=tty1 console=ttyS0
  RelatedPackageVersions:
   linux-restricted-modules-4.10.0-8-generic N/A
   linux-backports-modules-4.10.0-8-generic  N/A
   linux-firmwareN/A
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: Ubuntu-1.8.2-1ubuntu1
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-xenial
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrUbuntu-1.8.2-1ubuntu1:bd04/01/2014:svnOpenStackFoundation:pnOpenStackNova:pvr13.1.2:cvnQEMU:ct1:cvrpc-i440fx-xenial:
  dmi.product.name: OpenStack Nova
  dmi.product.version: 13.1.2
  dmi.sys.vendor: OpenStack Foundation

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1667078/+subscriptions

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More help   :

[Kernel-packages] [Bug 1667078] Re: bcache device numbers increase by 16

2017-03-02 Thread Ubuntu Foundations Team Bug Bot 
** Tags added: patch

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1667078

Title:
  bcache device numbers increase by 16

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  On 4.10 kernel, when creating bcache devices, each device kname is now
  incremented by 16

  /dev/bcache0
  /dev/bcache16
  /dev/bcache32

  etc.

  This was to support partitioning of bcache devices[1], however, This
  also will limit the number of bcache devices and doesn't match how
  other block devices name themselves, md for example, you get md0p1,
  md1p1, md2p1 etc.

  Ideally we'd continue to see devices increment by 1, and ensure we
  allocate partition numbers as well.

  I think the patch[1] below is incomplete; I think we also want to
  shift the minor value by the number of partitions when we set the
  disk_name value.

  drivers/md/bcache/super.c:

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor);

  to

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor >>
  4);

  This should keep the devname index based, while creating the device node with
  the appropriate space for partitions, like this:

  $ ls -al /dev/bcache*
  brw-rw 1 root disk 251,  0 Feb 22 17:40 /dev/bcache0
  brw-rw 1 root disk 251,  1 Feb 22 17:40 /dev/bcache0p1
  brw-rw 1 root disk 251, 16 Feb 22 17:40 /dev/bcache1
  brw-rw 1 root disk 251, 17 Feb 22 17:40 /dev/bcache1p1

  
  1. https://www.spinics.net/lists/linux-bcache/msg04267.html

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: linux-image-4.10.0-8-generic 4.10.0-8.10
  ProcVersionSignature: User Name 4.10.0-8.10-generic 4.10.0-rc8
  Uname: Linux 4.10.0-8-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Feb 22 17:36 seq
   crw-rw 1 root audio 116, 33 Feb 22 17:36 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.4-0ubuntu2
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CRDA: N/A
  Date: Wed Feb 22 17:41:18 2017
  Ec2AMI: ami-056c
  Ec2AMIManifest: FIXME
  Ec2AvailabilityZone: nova
  Ec2InstanceType: m1.small
  Ec2Kernel: unavailable
  Ec2Ramdisk: unavailable
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: OpenStack Foundation OpenStack Nova
  PciMultimedia:
   
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-8-generic 
root=UUID=15278dff-350d-42a1-8767-1424dfca7894 ro console=tty1 console=ttyS0
  RelatedPackageVersions:
   linux-restricted-modules-4.10.0-8-generic N/A
   linux-backports-modules-4.10.0-8-generic  N/A
   linux-firmwareN/A
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: Ubuntu-1.8.2-1ubuntu1
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-xenial
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrUbuntu-1.8.2-1ubuntu1:bd04/01/2014:svnOpenStackFoundation:pnOpenStackNova:pvr13.1.2:cvnQEMU:ct1:cvrpc-i440fx-xenial:
  dmi.product.name: OpenStack Nova
  dmi.product.version: 13.1.2
  dmi.sys.vendor: OpenStack Foundation

To manage notifications about this bug go to:
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Post to : kernel-packages@lists.launchpad.net
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More help   : https://help.launchpad.net/ListHelp

[Kernel-packages] [Bug 1667078] Re: bcache device numbers increase by 16

2017-03-02 Thread Stefan Bader 
I created a modified patch and verified that
- bcache base devices again are numbered 0,1,...
- partioning a bcache device creates the expected bcacheXpY devices
Will submit this change upstream (and for pre-stable zesty).

** Patch added: "0001-bcache-Fix-bcache-device-names.patch"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1667078/+attachment/4829714/+files/0001-bcache-Fix-bcache-device-names.patch

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1667078

Title:
  bcache device numbers increase by 16

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  On 4.10 kernel, when creating bcache devices, each device kname is now
  incremented by 16

  /dev/bcache0
  /dev/bcache16
  /dev/bcache32

  etc.

  This was to support partitioning of bcache devices[1], however, This
  also will limit the number of bcache devices and doesn't match how
  other block devices name themselves, md for example, you get md0p1,
  md1p1, md2p1 etc.

  Ideally we'd continue to see devices increment by 1, and ensure we
  allocate partition numbers as well.

  I think the patch[1] below is incomplete; I think we also want to
  shift the minor value by the number of partitions when we set the
  disk_name value.

  drivers/md/bcache/super.c:

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor);

  to

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor >>
  4);

  This should keep the devname index based, while creating the device node with
  the appropriate space for partitions, like this:

  $ ls -al /dev/bcache*
  brw-rw 1 root disk 251,  0 Feb 22 17:40 /dev/bcache0
  brw-rw 1 root disk 251,  1 Feb 22 17:40 /dev/bcache0p1
  brw-rw 1 root disk 251, 16 Feb 22 17:40 /dev/bcache1
  brw-rw 1 root disk 251, 17 Feb 22 17:40 /dev/bcache1p1

  
  1. https://www.spinics.net/lists/linux-bcache/msg04267.html

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: linux-image-4.10.0-8-generic 4.10.0-8.10
  ProcVersionSignature: User Name 4.10.0-8.10-generic 4.10.0-rc8
  Uname: Linux 4.10.0-8-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Feb 22 17:36 seq
   crw-rw 1 root audio 116, 33 Feb 22 17:36 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.4-0ubuntu2
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CRDA: N/A
  Date: Wed Feb 22 17:41:18 2017
  Ec2AMI: ami-056c
  Ec2AMIManifest: FIXME
  Ec2AvailabilityZone: nova
  Ec2InstanceType: m1.small
  Ec2Kernel: unavailable
  Ec2Ramdisk: unavailable
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: OpenStack Foundation OpenStack Nova
  PciMultimedia:
   
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-8-generic 
root=UUID=15278dff-350d-42a1-8767-1424dfca7894 ro console=tty1 console=ttyS0
  RelatedPackageVersions:
   linux-restricted-modules-4.10.0-8-generic N/A
   linux-backports-modules-4.10.0-8-generic  N/A
   linux-firmwareN/A
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: Ubuntu-1.8.2-1ubuntu1
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-xenial
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrUbuntu-1.8.2-1ubuntu1:bd04/01/2014:svnOpenStackFoundation:pnOpenStackNova:pvr13.1.2:cvnQEMU:ct1:cvrpc-i440fx-xenial:
  dmi.product.name: OpenStack Nova
  dmi.product.version: 13.1.2
  dmi.sys.vendor: OpenStack Foundation

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1667078] Re: bcache device numbers increase by 16

2017-03-01 Thread Launchpad Bug Tracker 
** Branch linked: lp:~curtin-dev/curtin/zesty

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1667078

Title:
  bcache device numbers increase by 16

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  On 4.10 kernel, when creating bcache devices, each device kname is now
  incremented by 16

  /dev/bcache0
  /dev/bcache16
  /dev/bcache32

  etc.

  This was to support partitioning of bcache devices[1], however, This
  also will limit the number of bcache devices and doesn't match how
  other block devices name themselves, md for example, you get md0p1,
  md1p1, md2p1 etc.

  Ideally we'd continue to see devices increment by 1, and ensure we
  allocate partition numbers as well.

  I think the patch[1] below is incomplete; I think we also want to
  shift the minor value by the number of partitions when we set the
  disk_name value.

  drivers/md/bcache/super.c:

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor);

  to

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor >>
  4);

  This should keep the devname index based, while creating the device node with
  the appropriate space for partitions, like this:

  $ ls -al /dev/bcache*
  brw-rw 1 root disk 251,  0 Feb 22 17:40 /dev/bcache0
  brw-rw 1 root disk 251,  1 Feb 22 17:40 /dev/bcache0p1
  brw-rw 1 root disk 251, 16 Feb 22 17:40 /dev/bcache1
  brw-rw 1 root disk 251, 17 Feb 22 17:40 /dev/bcache1p1

  
  1. https://www.spinics.net/lists/linux-bcache/msg04267.html

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: linux-image-4.10.0-8-generic 4.10.0-8.10
  ProcVersionSignature: User Name 4.10.0-8.10-generic 4.10.0-rc8
  Uname: Linux 4.10.0-8-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Feb 22 17:36 seq
   crw-rw 1 root audio 116, 33 Feb 22 17:36 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.4-0ubuntu2
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CRDA: N/A
  Date: Wed Feb 22 17:41:18 2017
  Ec2AMI: ami-056c
  Ec2AMIManifest: FIXME
  Ec2AvailabilityZone: nova
  Ec2InstanceType: m1.small
  Ec2Kernel: unavailable
  Ec2Ramdisk: unavailable
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: OpenStack Foundation OpenStack Nova
  PciMultimedia:
   
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-8-generic 
root=UUID=15278dff-350d-42a1-8767-1424dfca7894 ro console=tty1 console=ttyS0
  RelatedPackageVersions:
   linux-restricted-modules-4.10.0-8-generic N/A
   linux-backports-modules-4.10.0-8-generic  N/A
   linux-firmwareN/A
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: Ubuntu-1.8.2-1ubuntu1
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-xenial
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrUbuntu-1.8.2-1ubuntu1:bd04/01/2014:svnOpenStackFoundation:pnOpenStackNova:pvr13.1.2:cvnQEMU:ct1:cvrpc-i440fx-xenial:
  dmi.product.name: OpenStack Nova
  dmi.product.version: 13.1.2
  dmi.sys.vendor: OpenStack Foundation

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1667078] Re: bcache device numbers increase by 16

2017-03-01 Thread Stefan Bader 
** Changed in: linux (Ubuntu)
 Assignee: (unassigned) => Stefan Bader (smb)

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1667078

Title:
  bcache device numbers increase by 16

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  On 4.10 kernel, when creating bcache devices, each device kname is now
  incremented by 16

  /dev/bcache0
  /dev/bcache16
  /dev/bcache32

  etc.

  This was to support partitioning of bcache devices[1], however, This
  also will limit the number of bcache devices and doesn't match how
  other block devices name themselves, md for example, you get md0p1,
  md1p1, md2p1 etc.

  Ideally we'd continue to see devices increment by 1, and ensure we
  allocate partition numbers as well.

  I think the patch[1] below is incomplete; I think we also want to
  shift the minor value by the number of partitions when we set the
  disk_name value.

  drivers/md/bcache/super.c:

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor);

  to

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor >>
  4);

  This should keep the devname index based, while creating the device node with
  the appropriate space for partitions, like this:

  $ ls -al /dev/bcache*
  brw-rw 1 root disk 251,  0 Feb 22 17:40 /dev/bcache0
  brw-rw 1 root disk 251,  1 Feb 22 17:40 /dev/bcache0p1
  brw-rw 1 root disk 251, 16 Feb 22 17:40 /dev/bcache1
  brw-rw 1 root disk 251, 17 Feb 22 17:40 /dev/bcache1p1

  
  1. https://www.spinics.net/lists/linux-bcache/msg04267.html

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: linux-image-4.10.0-8-generic 4.10.0-8.10
  ProcVersionSignature: User Name 4.10.0-8.10-generic 4.10.0-rc8
  Uname: Linux 4.10.0-8-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Feb 22 17:36 seq
   crw-rw 1 root audio 116, 33 Feb 22 17:36 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.4-0ubuntu2
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CRDA: N/A
  Date: Wed Feb 22 17:41:18 2017
  Ec2AMI: ami-056c
  Ec2AMIManifest: FIXME
  Ec2AvailabilityZone: nova
  Ec2InstanceType: m1.small
  Ec2Kernel: unavailable
  Ec2Ramdisk: unavailable
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: OpenStack Foundation OpenStack Nova
  PciMultimedia:
   
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-8-generic 
root=UUID=15278dff-350d-42a1-8767-1424dfca7894 ro console=tty1 console=ttyS0
  RelatedPackageVersions:
   linux-restricted-modules-4.10.0-8-generic N/A
   linux-backports-modules-4.10.0-8-generic  N/A
   linux-firmwareN/A
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: Ubuntu-1.8.2-1ubuntu1
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-xenial
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrUbuntu-1.8.2-1ubuntu1:bd04/01/2014:svnOpenStackFoundation:pnOpenStackNova:pvr13.1.2:cvnQEMU:ct1:cvrpc-i440fx-xenial:
  dmi.product.name: OpenStack Nova
  dmi.product.version: 13.1.2
  dmi.sys.vendor: OpenStack Foundation

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1667078/+subscriptions

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[Kernel-packages] [Bug 1667078] Re: bcache device numbers increase by 16

2017-02-28 Thread Stefan Bader 
The partitioning support is a 4.10 change, so changes are high they did
not yet see the implications. The change might move into the right
direction but certainly should not use a hard-coded shift. The number of
minors is a define so more something like (minor / BCACHE_MINORS).

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1667078

Title:
  bcache device numbers increase by 16

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  On 4.10 kernel, when creating bcache devices, each device kname is now
  incremented by 16

  /dev/bcache0
  /dev/bcache16
  /dev/bcache32

  etc.

  This was to support partitioning of bcache devices[1], however, This
  also will limit the number of bcache devices and doesn't match how
  other block devices name themselves, md for example, you get md0p1,
  md1p1, md2p1 etc.

  Ideally we'd continue to see devices increment by 1, and ensure we
  allocate partition numbers as well.

  I think the patch[1] below is incomplete; I think we also want to
  shift the minor value by the number of partitions when we set the
  disk_name value.

  drivers/md/bcache/super.c:

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor);

  to

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor >>
  4);

  This should keep the devname index based, while creating the device node with
  the appropriate space for partitions, like this:

  $ ls -al /dev/bcache*
  brw-rw 1 root disk 251,  0 Feb 22 17:40 /dev/bcache0
  brw-rw 1 root disk 251,  1 Feb 22 17:40 /dev/bcache0p1
  brw-rw 1 root disk 251, 16 Feb 22 17:40 /dev/bcache1
  brw-rw 1 root disk 251, 17 Feb 22 17:40 /dev/bcache1p1

  
  1. https://www.spinics.net/lists/linux-bcache/msg04267.html

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: linux-image-4.10.0-8-generic 4.10.0-8.10
  ProcVersionSignature: User Name 4.10.0-8.10-generic 4.10.0-rc8
  Uname: Linux 4.10.0-8-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Feb 22 17:36 seq
   crw-rw 1 root audio 116, 33 Feb 22 17:36 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.4-0ubuntu2
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CRDA: N/A
  Date: Wed Feb 22 17:41:18 2017
  Ec2AMI: ami-056c
  Ec2AMIManifest: FIXME
  Ec2AvailabilityZone: nova
  Ec2InstanceType: m1.small
  Ec2Kernel: unavailable
  Ec2Ramdisk: unavailable
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: OpenStack Foundation OpenStack Nova
  PciMultimedia:
   
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-8-generic 
root=UUID=15278dff-350d-42a1-8767-1424dfca7894 ro console=tty1 console=ttyS0
  RelatedPackageVersions:
   linux-restricted-modules-4.10.0-8-generic N/A
   linux-backports-modules-4.10.0-8-generic  N/A
   linux-firmwareN/A
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: Ubuntu-1.8.2-1ubuntu1
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-xenial
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrUbuntu-1.8.2-1ubuntu1:bd04/01/2014:svnOpenStackFoundation:pnOpenStackNova:pvr13.1.2:cvnQEMU:ct1:cvrpc-i440fx-xenial:
  dmi.product.name: OpenStack Nova
  dmi.product.version: 13.1.2
  dmi.sys.vendor: OpenStack Foundation

To manage notifications about this bug go to:
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Re: [Kernel-packages] [Bug 1667078] Re: bcache device numbers increase by 16

2017-02-24 Thread Ryan Harper 
On Fri, Feb 24, 2017 at 10:39 AM, Joseph Salisbury <
joseph.salisb...@canonical.com> wrote:

> It doesn't look like that patch ever landed in mainline.  Do you plan on
> responding to the upstream thread with your recommendation?
>

It's an untested change; I've not pushed anything upstream.
If time permits, I'd recompile a kernel with the change and test out that
we get index increments and don't break partitioning.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1667078

Title:
  bcache device numbers increase by 16

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  On 4.10 kernel, when creating bcache devices, each device kname is now
  incremented by 16

  /dev/bcache0
  /dev/bcache16
  /dev/bcache32

  etc.

  This was to support partitioning of bcache devices[1], however, This
  also will limit the number of bcache devices and doesn't match how
  other block devices name themselves, md for example, you get md0p1,
  md1p1, md2p1 etc.

  Ideally we'd continue to see devices increment by 1, and ensure we
  allocate partition numbers as well.

  I think the patch[1] below is incomplete; I think we also want to
  shift the minor value by the number of partitions when we set the
  disk_name value.

  drivers/md/bcache/super.c:

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor);

  to

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor >>
  4);

  This should keep the devname index based, while creating the device node with
  the appropriate space for partitions, like this:

  $ ls -al /dev/bcache*
  brw-rw 1 root disk 251,  0 Feb 22 17:40 /dev/bcache0
  brw-rw 1 root disk 251,  1 Feb 22 17:40 /dev/bcache0p1
  brw-rw 1 root disk 251, 16 Feb 22 17:40 /dev/bcache1
  brw-rw 1 root disk 251, 17 Feb 22 17:40 /dev/bcache1p1

  
  1. https://www.spinics.net/lists/linux-bcache/msg04267.html

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: linux-image-4.10.0-8-generic 4.10.0-8.10
  ProcVersionSignature: User Name 4.10.0-8.10-generic 4.10.0-rc8
  Uname: Linux 4.10.0-8-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Feb 22 17:36 seq
   crw-rw 1 root audio 116, 33 Feb 22 17:36 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.4-0ubuntu2
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CRDA: N/A
  Date: Wed Feb 22 17:41:18 2017
  Ec2AMI: ami-056c
  Ec2AMIManifest: FIXME
  Ec2AvailabilityZone: nova
  Ec2InstanceType: m1.small
  Ec2Kernel: unavailable
  Ec2Ramdisk: unavailable
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: OpenStack Foundation OpenStack Nova
  PciMultimedia:
   
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-8-generic 
root=UUID=15278dff-350d-42a1-8767-1424dfca7894 ro console=tty1 console=ttyS0
  RelatedPackageVersions:
   linux-restricted-modules-4.10.0-8-generic N/A
   linux-backports-modules-4.10.0-8-generic  N/A
   linux-firmwareN/A
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: Ubuntu-1.8.2-1ubuntu1
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-xenial
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrUbuntu-1.8.2-1ubuntu1:bd04/01/2014:svnOpenStackFoundation:pnOpenStackNova:pvr13.1.2:cvnQEMU:ct1:cvrpc-i440fx-xenial:
  dmi.product.name: OpenStack Nova
  dmi.product.version: 13.1.2
  dmi.sys.vendor: OpenStack Foundation

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1667078/+subscriptions

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[Kernel-packages] [Bug 1667078] Re: bcache device numbers increase by 16

2017-02-24 Thread Joseph Salisbury 
It doesn't look like that patch ever landed in mainline.  Do you plan on
responding to the upstream thread with your recommendation?

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

** Tags added: kernel-da-key

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1667078

Title:
  bcache device numbers increase by 16

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  On 4.10 kernel, when creating bcache devices, each device kname is now
  incremented by 16

  /dev/bcache0
  /dev/bcache16
  /dev/bcache32

  etc.

  This was to support partitioning of bcache devices[1], however, This
  also will limit the number of bcache devices and doesn't match how
  other block devices name themselves, md for example, you get md0p1,
  md1p1, md2p1 etc.

  Ideally we'd continue to see devices increment by 1, and ensure we
  allocate partition numbers as well.

  I think the patch[1] below is incomplete; I think we also want to
  shift the minor value by the number of partitions when we set the
  disk_name value.

  drivers/md/bcache/super.c:

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor);

  to

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor >>
  4);

  This should keep the devname index based, while creating the device node with
  the appropriate space for partitions, like this:

  $ ls -al /dev/bcache*
  brw-rw 1 root disk 251,  0 Feb 22 17:40 /dev/bcache0
  brw-rw 1 root disk 251,  1 Feb 22 17:40 /dev/bcache0p1
  brw-rw 1 root disk 251, 16 Feb 22 17:40 /dev/bcache1
  brw-rw 1 root disk 251, 17 Feb 22 17:40 /dev/bcache1p1

  
  1. https://www.spinics.net/lists/linux-bcache/msg04267.html

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: linux-image-4.10.0-8-generic 4.10.0-8.10
  ProcVersionSignature: User Name 4.10.0-8.10-generic 4.10.0-rc8
  Uname: Linux 4.10.0-8-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Feb 22 17:36 seq
   crw-rw 1 root audio 116, 33 Feb 22 17:36 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.4-0ubuntu2
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CRDA: N/A
  Date: Wed Feb 22 17:41:18 2017
  Ec2AMI: ami-056c
  Ec2AMIManifest: FIXME
  Ec2AvailabilityZone: nova
  Ec2InstanceType: m1.small
  Ec2Kernel: unavailable
  Ec2Ramdisk: unavailable
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: OpenStack Foundation OpenStack Nova
  PciMultimedia:
   
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-8-generic 
root=UUID=15278dff-350d-42a1-8767-1424dfca7894 ro console=tty1 console=ttyS0
  RelatedPackageVersions:
   linux-restricted-modules-4.10.0-8-generic N/A
   linux-backports-modules-4.10.0-8-generic  N/A
   linux-firmwareN/A
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: Ubuntu-1.8.2-1ubuntu1
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-xenial
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrUbuntu-1.8.2-1ubuntu1:bd04/01/2014:svnOpenStackFoundation:pnOpenStackNova:pvr13.1.2:cvnQEMU:ct1:cvrpc-i440fx-xenial:
  dmi.product.name: OpenStack Nova
  dmi.product.version: 13.1.2
  dmi.sys.vendor: OpenStack Foundation

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[Kernel-packages] [Bug 1667078] Re: bcache device numbers increase by 16

2017-02-22 Thread Launchpad Bug Tracker 
** Branch linked: lp:curtin

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https://bugs.launchpad.net/bugs/1667078

Title:
  bcache device numbers increase by 16

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  On 4.10 kernel, when creating bcache devices, each device kname is now
  incremented by 16

  /dev/bcache0
  /dev/bcache16
  /dev/bcache32

  etc.

  This was to support partitioning of bcache devices[1], however, This
  also will limit the number of bcache devices and doesn't match how
  other block devices name themselves, md for example, you get md0p1,
  md1p1, md2p1 etc.

  Ideally we'd continue to see devices increment by 1, and ensure we
  allocate partition numbers as well.

  I think the patch[1] below is incomplete; I think we also want to
  shift the minor value by the number of partitions when we set the
  disk_name value.

  drivers/md/bcache/super.c:

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor);

  to

 snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor >>
  4);

  This should keep the devname index based, while creating the device node with
  the appropriate space for partitions, like this:

  $ ls -al /dev/bcache*
  brw-rw 1 root disk 251,  0 Feb 22 17:40 /dev/bcache0
  brw-rw 1 root disk 251,  1 Feb 22 17:40 /dev/bcache0p1
  brw-rw 1 root disk 251, 16 Feb 22 17:40 /dev/bcache1
  brw-rw 1 root disk 251, 17 Feb 22 17:40 /dev/bcache1p1

  
  1. https://www.spinics.net/lists/linux-bcache/msg04267.html

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: linux-image-4.10.0-8-generic 4.10.0-8.10
  ProcVersionSignature: User Name 4.10.0-8.10-generic 4.10.0-rc8
  Uname: Linux 4.10.0-8-generic x86_64
  AlsaDevices:
   total 0
   crw-rw 1 root audio 116,  1 Feb 22 17:36 seq
   crw-rw 1 root audio 116, 33 Feb 22 17:36 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.4-0ubuntu2
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CRDA: N/A
  Date: Wed Feb 22 17:41:18 2017
  Ec2AMI: ami-056c
  Ec2AMIManifest: FIXME
  Ec2AvailabilityZone: nova
  Ec2InstanceType: m1.small
  Ec2Kernel: unavailable
  Ec2Ramdisk: unavailable
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: OpenStack Foundation OpenStack Nova
  PciMultimedia:
   
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-8-generic 
root=UUID=15278dff-350d-42a1-8767-1424dfca7894 ro console=tty1 console=ttyS0
  RelatedPackageVersions:
   linux-restricted-modules-4.10.0-8-generic N/A
   linux-backports-modules-4.10.0-8-generic  N/A
   linux-firmwareN/A
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: Ubuntu-1.8.2-1ubuntu1
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-xenial
  dmi.modalias: 
dmi:bvnSeaBIOS:bvrUbuntu-1.8.2-1ubuntu1:bd04/01/2014:svnOpenStackFoundation:pnOpenStackNova:pvr13.1.2:cvnQEMU:ct1:cvrpc-i440fx-xenial:
  dmi.product.name: OpenStack Nova
  dmi.product.version: 13.1.2
  dmi.sys.vendor: OpenStack Foundation

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