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[Bug 1388331] [NEW] /dev/hwrng not created on i3-4010U

 

Public bug reported:

This CPU supports rdrand, but /dev/hwrng is not created at boot time.

Reinstalling rng-tools creates /dev/hwrng but it is lost at reboot.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: linux-image-generic 3.16.0.24.25
ProcVersionSignature: Ubuntu 3.16.0-23.31-generic 3.16.4
Uname: Linux 3.16.0-23-generic x86_64
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D0c', '/dev/snd/pcmC1D0p', '/dev/snd/controlC1', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D3p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA:
 country EU: DFS-UNSET
 	(2402 - 2482 @ 40), (N/A, 20)
 	(5170 - 5250 @ 40), (N/A, 20)
 	(5250 - 5330 @ 40), (N/A, 20), DFS
 	(5490 - 5710 @ 40), (N/A, 27), DFS
Date: Sat Nov  1 08:27:45 2014
HibernationDevice: RESUME=UUID=0204c6b1-868e-4140-a1d0-37207b1dcaa7
InstallationDate: Installed on 2014-04-17 (197 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-23-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
 linux-restricted-modules-3.16.0-23-generic N/A
 linux-backports-modules-3.16.0-23-generic  N/A
 linux-firmware                             1.138
SourcePackage: linux
UpgradeStatus: Upgraded to utopic on 2014-10-09 (22 days ago)
dmi.bios.date: 10/17/2013
dmi.bios.vendor: Intel Corp.
dmi.bios.version: WYLPT10H.86A.0021.2013.1017.1606
dmi.board.name: D34010WYK
dmi.board.vendor: Intel Corporation
dmi.board.version: H14771-303
dmi.chassis.type: 3
dmi.modalias: dmi:bvnIntelCorp.:bvrWYLPT10H.86A.0021.2013.1017.1606:bd10/17/2013:svn:pn:pvr:rvnIntelCorporation:rnD34010WYK:rvrH14771-303:cvn:ct3:cvr:

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug utopic

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https://bugs.launchpad.net/bugs/1388331

Title:
  /dev/hwrng not created on i3-4010U

Status in “linux” package in Ubuntu:
  New

Bug description:
  This CPU supports rdrand, but /dev/hwrng is not created at boot time.

  Reinstalling rng-tools creates /dev/hwrng but it is lost at reboot.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-generic 3.16.0.24.25
  ProcVersionSignature: Ubuntu 3.16.0-23.31-generic 3.16.4
  Uname: Linux 3.16.0-23-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D0c', '/dev/snd/pcmC1D0p', '/dev/snd/controlC1', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D3p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA:
   country EU: DFS-UNSET
   	(2402 - 2482 @ 40), (N/A, 20)
   	(5170 - 5250 @ 40), (N/A, 20)
   	(5250 - 5330 @ 40), (N/A, 20), DFS
   	(5490 - 5710 @ 40), (N/A, 27), DFS
  Date: Sat Nov  1 08:27:45 2014
  HibernationDevice: RESUME=UUID=0204c6b1-868e-4140-a1d0-37207b1dcaa7
  InstallationDate: Installed on 2014-04-17 (197 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-23-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-23-generic N/A
   linux-backports-modules-3.16.0-23-generic  N/A
   linux-firmware                             1.138
  SourcePackage: linux
  UpgradeStatus: Upgraded to utopic on 2014-10-09 (22 days ago)
  dmi.bios.date: 10/17/2013
  dmi.bios.vendor: Intel Corp.
  dmi.bios.version: WYLPT10H.86A.0021.2013.1017.1606
  dmi.board.name: D34010WYK
  dmi.board.vendor: Intel Corporation
  dmi.board.version: H14771-303
  dmi.chassis.type: 3
  dmi.modalias: dmi:bvnIntelCorp.:bvrWYLPT10H.86A.0021.2013.1017.1606:bd10/17/2013:svn:pn:pvr:rvnIntelCorporation:rnD34010WYK:rvrH14771-303:cvn:ct3:cvr:

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