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Bug#1107979: [regression v6.12.30..v6.12.32] mmc1: mmc_select_hs400 failed, error -110 / boot regression on Lenovo IdeaPad 1 15ADA7

Cross-posted to 2 groups.

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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

Regards,
Salvatore

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Bug#1107979: linux-image-6.12.32-amd64: kernel 6.12.32 fails booting on MMC device Liviu Heinrich <livix07@riseup.net> - 2025-06-18 13:20 +0200
  Bug#1107979: [regression v6.12.30..v6.12.32] mmc1: mmc_select_hs400 failed, error -110 / boot regression on Lenovo IdeaPad 1 15ADA7 Salvatore Bonaccorso <carnil@debian.org> - 2025-06-20 21:30 +0200

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