Control: tag -1 moreinfo On Sunday, 21 March 2021 00:59:45 CEST Ryutaroh Matsumoto wrote: > Package: src:linux > Version: 5.10.19-1 > Severity: minor > Tags: upstream sid bullseye > Control: forwarded -1 > http://lists.infradead.org/pipermail/linux-rpi-kernel/2021-March/008058.htm > l > > I found another mysterious error caused by vc4.ko. > Only when vc4.ko is loaded AND the SD card slot is empty in my RPi4B 8GB, > I observe the following harmless error message at every 10 seconds: > > [ 255.457584] mmc1: Timeout waiting for hardware cmd interrupt. > [ 255.460735] mmc1: sdhci: ============ SDHCI REGISTER DUMP =========== > [ 255.464244] mmc1: sdhci: Sys addr: 0x00000000 | Version: 0x00001002 > [ 255.467752] mmc1: sdhci: Blk size: 0x00000000 | Blk cnt: 0x00000000 > [ 255.471259] mmc1: sdhci: Argument: 0x00000000 | Trn mode: 0x00000000 > [ 255.474765] mmc1: sdhci: Present: 0x1fff0001 | Host ctl: 0x00000001 > [ 255.478271] mmc1: sdhci: Power: 0x0000000f | Blk gap: 0x00000080 > [ 255.481777] mmc1: sdhci: Wake-up: 0x00000000 | Clock: 0x0000f447 > [ 255.485282] mmc1: sdhci: Timeout: 0x00000000 | Int stat: 0x00000000 > [ 255.488787] mmc1: sdhci: Int enab: 0x00ff1003 | Sig enab: 0x00ff1003 > [ 255.492293] mmc1: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000 > [ 255.495799] mmc1: sdhci: Caps: 0x45ee6432 | Caps_1: 0x0000a525 > [ 255.499305] mmc1: sdhci: Cmd: 0x00000502 | Max curr: 0x00080008 > [ 255.502809] mmc1: sdhci: Resp[0]: 0x00000000 | Resp[1]: 0x00000000 > [ 255.506314] mmc1: sdhci: Resp[2]: 0x00000000 | Resp[3]: 0x00000000 > [ 255.509819] mmc1: sdhci: Host ctl2: 0x00000000 > [ 255.512239] mmc1: sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x00000000 > [ 255.515743] mmc1: sdhci: ============================================ > > -- System Information: > Debian Release: bullseye/sid > APT prefers testing > APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental') > Architecture: arm64 (aarch64) > > Versions of packages linux-image-5.10.0-4-rt-arm64 is related to: > ii firmware-brcm80211 20210208-4 If I understand the forwarded thread correctly, the reported symptoms went completely away by updating firmware files from https://github.com/RPi-Distro/ firmware-nonfree/tree/master/brcm on 2021-03-29. Those files belong to the firmware-brcm80211 package and the latest version in the Debian archives is 20210818-1. Are the symptoms also gone with that updated Debian package? I also saw mentions of a potential fix wrt MMC, but I don't know if a fix was eventually merged (upstream). It would be useful to know whether a newer 5.10 kernel or (even better) the 5.18.2-1 kernel from Unstable changed anything wrt this bug if there was indeed (also) a kernel component to this issue.
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