rngd quit after some time when using TPM

[Laurent Bigonville]

Binary package hint: rng-tools

Hi,

rngd stop running after some time.

In dmesg I get:

[ 2262.262564] tpm_tis 00:09: Error left over data
[ 2262.262580] tpm_tis 00:09: tpm_transmit: tpm_recv: error -5
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 2/2
   Subdevice #0: subdevice #0
   Subdevice #1: subdevice #1
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: bigon 1832 F.... pulseaudio
CRDA: Error: [Errno 2] Aucun fichier ou dossier de ce type
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf6adc000 irq 21'
   Mixer name : 'Intel G45 DEVCTG'
   Components : 'HDA:111d76b2,1028024f,00100302 HDA:80862802,80860101,00100000'
   Controls : 24
   Simple ctrls : 15
DistroRelease: Ubuntu 10.04
HibernationDevice: RESUME=UUID=2015b0ce-0d4e-4c1e-a43e-99849945e657
MachineType: Dell Inc. Latitude E6500
Package: linux (not installed)
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-22-generic root=/dev/mapper/hostname-root ro quiet splash
ProcEnviron:
 PATH=(custom, user)
 LANG=fr_BE.utf8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
Regression: No
RelatedPackageVersions: linux-firmware 1.34
Reproducible: Yes
Tags: lucid needs-upstream-testing
Uname: Linux 2.6.32-22-generic x86_64
UserGroups: adm admin cdrom dialout libvirtd lpadmin plugdev sambashare wireshark
dmi.bios.date: 10/30/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A18
dmi.board.name: 0W612R
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA18:bd10/30/2009:svnDellInc.:pnLatitudeE6500:pvr:rvnDellInc.:rn0W612R:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Latitude E6500
dmi.sys.vendor: Dell Inc.

[Laurent Bigonville (bigon)]

gdb tells me it get a SIGTERM

[Laurent Bigonville (bigon)]

Looks like this only happens on my Dell Latitude E6500

[Jeremy Foshee (jeremyfoshee)]

Hi Laurent,

Please be sure to confirm this issue exists with the latest development release of Ubuntu. ISO CD images are available from http://cdimage.ubuntu.com/daily-live/current/ . If the issue remains, please run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux 571728

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

    [This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[Laurent Bigonville (bigon)]

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[Laurent Bigonville (bigon)]

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[Laurent Bigonville (bigon)]

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[Laurent Bigonville (bigon)]

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[Laurent Bigonville (bigon)]

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[Laurent Bigonville (bigon)]

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[Laurent Bigonville (bigon)]

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[Laurent Bigonville (bigon)]

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[Laurent Bigonville (bigon)]

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[Laurent Bigonville (bigon)]

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[Laurent Bigonville (bigon)]

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[Laurent Bigonville (bigon)]

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[Laurent Bigonville (bigon)]

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[Laurent Bigonville (bigon)]

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[Laurent Bigonville (bigon)]

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[Laurent Bigonville (bigon)]

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[Laurent Bigonville (bigon)]

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[Laurent Bigonville (bigon)]

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[Tyler Hicks (tyhicks)]

Hi Laurent - Do you have any idea if this bug is still valid? I feel like enough things have changed in rng-tools and tpm-rng since you filed this bug that it may no longer be valid.

I've set up rngd on my laptop, with the TPM rng (via the tpm-rng module) backing /dev/hwrng, to see if I see the same bug.

[Laurent Bigonville (bigon)]

I think it can be closed indeed

[Tyler Hicks (tyhicks)]

Closing per comment #23. Also, I've been successfully using rngd and the TPM for about 5 days now without issue.