Bug#1102422: tpm tpm0: tpm_try_transmit: send(): error -62

I did not see any such message from linux-image-6.1.0-31.

I don't think this particular system is doing any tpm operations.

The coreboot firmware has not changed in several years for this system.

Please see attached kern.log.xz.

I'm more likely to go back to linux-image-6.1.0-31 than to try a newer kernel, but I'll consider it.

On Thu, Apr 10, 2025 at 4:12 AM Emanuele Rocca <ema@debian.org> wrote:

Control: tag -1 moreinfo

Hi Jiann-Ming,

On 2025-04-08 09:57, Jiann-Ming Su wrote:
> Package: linux-image-6.1.0-32-amd64
> Version: 6.1.129-1
>
> Sudden incessant tpm messages in dmesg on Asus Chromebox 4:
> tpm tpm0: tpm_try_transmit: send(): error -62
>
> "architecture": "x86_64",
> "bios_date": "08/22/2019",
> "bios_vendor": "coreboot",
> "bios_version": "MrChromebox-4.10",
> "board_asset_tag": "NA",
> "board_name": "Panther",
> "board_serial": "123456789",
> "board_vendor": "GOOGLE",
> "board_version": "1.0",
> "chassis_asset_tag": "NA",
> "chassis_serial": "NA",
> "chassis_vendor": "GOOGLE",
> "chassis_version": "NA",

We need some more information in order to debug this problem.

- Did any previous kernel version work fine for you?
- Does the issue arise after performing some specific tpm operations?
- Have you by any chance upgraded/downgraded your coreboot firmware?
- Please share the full output from dmesg.
- Please try a more recent kernel from bookworm-backports to see if the
problem can still be reproduced. See https://backports.debian.org/Instructions/

Thanks,
Emanuele