• Bug#1108065: [regression v6.12.30..v6.12.32] mmc1: mmc_select_hs400 fai

    From Salvatore Bonaccorso@21:1/5 to Salvatore Bonaccorso on Fri Jun 20 22:30:01 2025
    On Fri, Jun 20, 2025 at 09:20:41PM +0200, Salvatore Bonaccorso wrote:
    Hi

    In Debian we got a regression report booting on a Lenovo IdeaPad 1
    15ADA7 dropping finally into the initramfs shell after updating from
    6.12.30 to 6.12.32 with messages before dropping into the intiramfs
    shell:

    mmc1: mmc_select_hs400 failed, error -110
    mmc1: error -110 whilst initialising MMC card

    The original report is at https://bugs.debian.org/1107979 and the
    reporter tested as well kernel up to 6.15.3 which still fails to boot.

    Another similar report landed with after the same version update as https://bugs.debian.org/1107979 .

    I only see three commits touching drivers/mmc between
    6.12.30..6.12.32:

    28306c58daf8 ("mmc: sdhci: Disable SD card clock before changing parameters") 38828e0dc771 ("mmc: dw_mmc: add exynos7870 DW MMC support")
    67bb2175095e ("mmc: host: Wait for Vdd to settle on card power off")

    I have found a potential similar issue reported in ArchLinux at https://bbs.archlinux.org/viewtopic.php?id=306024

    I have asked if we can get more information out of the boot, but maybe
    this regression report already rings bell for you?

    #regzbot introduced v6.12.30..v6.12.32
    #regzbot link: https://bugs.debian.org/1107979
    #regzbot link: https://bbs.archlinux.org/viewtopic.php?id=306024

    *sigh* apologies for the "mess", the actual right report is https://bugs.debian.org/1108065 (where #1107979 at least has
    similarities or might have the same root cause).

    #regzbot link: https://bugs.debian.org/1108065

    Regards,
    Salvatore

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