Bug#830303: mmc0: Unexpected interrupt 0x04000000.
I tested multiple SD cards in my laptop (Acer Aspire V3-571G) card
reader (Broadcom Limited BCM57765/57785). My system uses mostly Debian
10 packages with a few packages from backports (mainly kernel image,
systemd, emacs and their dependencies):
kernel: Linux version 5.10.0-0.bpo.9-amd64
(debian-kernel@lists.debian.org) (gcc-8 (Debian 8.3.0-6) 8.3.0, GNU ld
(GNU Binutils for Debian) 2.31.1) #1 SMP Debian 5.10.70-1~bpo10+1
(2021-10-10)
The workaround mentioned above also works on my system. I created the
"/etc/modprobe.d/sdhci.conf" file containing "options sdhci
debug_quirks2=0x4" and had to regenerate initrd images using "sudo
update-initramfs -u -k all".
SAMSUNG EVO 64GB MICRO SDXC CARD (DOESN'T WORK WITHOUT THE WORKAROUND) -
SYSTEMD JOURNALD - Relevant messages:
kernel: mmc0: new ultra high speed SDR104 SDXC card at address 0001
kernel: mmcblk0: mmc0:0001 EC2QT 59.6 GiB
kernel: mmc0: Timeout waiting for hardware interrupt.
kernel: mmc0: sdhci: ============ SDHCI REGISTER DUMP ===========
kernel: mmc0: sdhci: Sys addr: 0x000010c8 | Version: 0x00001502
kernel: mmc0: sdhci: Blk size: 0x00007200 | Blk cnt: 0x00000000
kernel: mmc0: sdhci: Argument: 0x00000000 | Trn mode: 0x0000003b
kernel: mmc0: sdhci: Present: 0x1fff0000 | Host ctl: 0x0000001f
kernel: mmc0: sdhci: Power: 0x0000000f | Blk gap: 0x00000000
kernel: mmc0: sdhci: Wake-up: 0x00000000 | Clock: 0x00000007
kernel: mmc0: sdhci: Timeout: 0x0000000a | Int stat: 0x00000000
kernel: mmc0: sdhci: Int enab: 0x03ff008b | Sig enab: 0x03ff008b
kernel: mmc0: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000
kernel: mmc0: sdhci: Caps: 0x176ec8b0 | Caps_1: 0x03002177
kernel: mmc0: sdhci: Cmd: 0x0000123a | Max curr: 0x00000000
kernel: mmc0: sdhci: Resp[0]: 0x00000900 | Resp[1]: 0x00000900
kernel: mmc0: sdhci: Resp[2]: 0x00000900 | Resp[3]: 0x00000900
kernel: mmc0: sdhci: Host ctl2: 0x0000804b
kernel: mmc0: sdhci: ADMA Err: 0x00000001 | ADMA Ptr: 0x0000000120943204
kernel: mmc0: sdhci: ============================================
kernel: mmc0: Unexpected interrupt 0x04000000.
kernel: mmc0: sdhci: ============ SDHCI REGISTER DUMP ===========
kernel: mmc0: sdhci: Sys addr: 0x00000000 | Version: 0x00001502
kernel: mmc0: sdhci: Blk size: 0x00007200 | Blk cnt: 0x00000000
kernel: mmc0: sdhci: Argument: 0x00000000 | Trn mode: 0x00000033
kernel: mmc0: sdhci: Present: 0x1fff0000 | Host ctl: 0x0000001f
kernel: mmc0: sdhci: Power: 0x0000000f | Blk gap: 0x00000000
kernel: mmc0: sdhci: Wake-up: 0x00000000 | Clock: 0x00000007
kernel: mmc0: sdhci: Timeout: 0x0000000a | Int stat: 0x00000000
kernel: mmc0: sdhci: Int enab: 0x03ff008b | Sig enab: 0x03ff008b
kernel: mmc0: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000
kernel: mmc0: sdhci: Caps: 0x176ec8b0 | Caps_1: 0x03002177
kernel: mmc0: sdhci: Cmd: 0x00000d1a | Max curr: 0x00000000
kernel: mmc0: sdhci: Resp[0]: 0x00400900 | Resp[1]: 0x00000000
kernel: mmc0: sdhci: Resp[2]: 0x00000000 | Resp[3]: 0x00000000
kernel: mmc0: sdhci: Host ctl2: 0x0000800b
kernel: mmc0: sdhci: ADMA Err: 0x00000001 | ADMA Ptr: 0x0000000120943204
kernel: mmc0: sdhci: ============================================
SAMSUNG EVO 64GB MICRO SDXC CARD (WORKS WITH THE WORKAROUND) - SYSTEMD
JOURNALD - Relevant messages:
kernel: mmc0: new high speed SDXC card at address 0001
kernel: mmcblk0: mmc0:0001 EC2QT 59.6 GiB
kernel: mmcblk0: p1
udisksd[597]: Mounted /dev/mmcblk0p1 at /media/USERNAME/disk on behalf
of uid 1000
udisksd[597]: Cleaning up mount point /media/USERNAME/disk (device 179:1
is not mounted)
udisksd[597]: Unmounted /dev/mmcblk0p1 on behalf of uid 1000
kernel: mmc0: card 0001 removed
SANDISK ULTRA 16GB MICRO SDHC CARD (DOESN'T WORK WITHOUT THE WORKAROUND)
- SYSTEMD JOURNALD - Relevant messages:
kernel: mmc0: new ultra high speed DDR50 SDHC card at address aaaa
kernel: mmcblk0: mmc0:aaaa SL16G 14.8 GiB
AFTER 1 MINUTE:
systemd-udevd[459]: mmc0:aaaa: Worker [493] processing SEQNUM=2742 is
taking a long time
AFTER 2 MORE MINUTES I REMOVED THE CARD FROM THE READER:
kernel: mmc0: Card removed during transfer!
kernel: mmc0: Resetting controller.
kernel: ldm_validate_partition_table(): Disk read failed.
kernel: Dev mmcblk0: unable to read RDB block 0
kernel: mmcblk0: unable to read partition table
kernel: mmc0: card aaaa removed
SANDISK ULTRA 16GB MICRO SDHC CARD (WORKS WITH THE WORKAROUND) - SYSTEMD
JOURNALD - Relevant messages:
kernel: mmc0: new high speed SDHC card at address aaaa
kernel: mmcblk0: mmc0:aaaa SL16G 14.8 GiB
kernel: mmcblk0:
kernel: FAT-fs (mmcblk0): Volume was not properly unmounted. Some data
may be corrupt. Please run fsck.
udisksd[587]: Mounted /dev/mmcblk0 at /media/USERNAME/disk on behalf of
uid 1000
udisksd[587]: Cleaning up mount point /media/USERNAME/disk (device 179:0
is not mounted)
udisksd[587]: Unmounted /dev/mmcblk0 on behalf of uid 1000
kernel: mmc0: card aaaa removed
ADATA 16GB MICRO SDHC CARD (WORKS WITHOUT THE WORKAROUND) - SYSTEMD
JOURNALD - Relevant messages:
kernel: mmc0: new high speed SDHC card at address b368
kernel: mmcblk0: mmc0:b368 SD 15.4 GiB
kernel: mmcblk0:
kernel: FAT-fs (mmcblk0): Volume was not properly unmounted. Some data
may be corrupt. Please run fsck.
udisksd[596]: Mounted /dev/mmcblk0 at /media/USERNAME/disk on behalf of
uid 1000
udisksd[596]: Cleaning up mount point /media/USERNAME/disk (device 179:0
is not mounted)
udisksd[596]: Unmounted /dev/mmcblk0 on behalf of uid 1000
kernel: mmc0: card b368 removed
ADATA 32GB SDHC CARD (WORKS WITHOUT THE WORKAROUND) - SYSTEMD JOURNALD -
Relevant messages:
kernel: mmc0: Skipping voltage switch
kernel: mmc0: new high speed SDHC card at address b368
kernel: mmcblk0: mmc0:b368 SD 30.2 GiB
kernel: mmcblk0: p1
kernel: FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data
may be corrupt. Please run fsck.
udisksd[596]: Mounted /dev/mmcblk0p1 at /media/USERNAME/NIKON on behalf
of uid 1000
udisksd[596]: Cleaning up mount point /media/USERNAME/NIKON (device
179:1 is not mounted)
udisksd[596]: Unmounted /dev/mmcblk0p1 on behalf of uid 1000
kernel: mmc0: card b368 removed
All three MICRO SD cards were connected via ADATA and SAMSUNG MICRO SD
to SD adapters as the card reader slot only accepts SD cards. But it
seems that various SD cards or adapters brands do not make a difference,
instead the "ultra high speed" mode selected for more modern SD cards
seems to cause the buggy behavior (the workaround forces such SD cards
to use the slower "high speed" mode only).
Regards,
Bakhelit
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