Igel M350C - unable to use integrated mmc after recent FOG Update

pilipp_edv

Hi all,
we use FOG to deploy a custom thinclient operating system to hardware made by Igel.
One of the models we use has an integrated sd card reader where the only storage resides.
Before the last FOG update, we did not encounter any issues.
Since updating to 1.5.10.1673 however, we get the following message:

mmc0: mmc_select_hs400 failed, error -110
mmc0: error -110 whilst initialising MMC card

followed by the “An error has been detected!” - message stating

Init Version: 20250731
Could not determine a suitable disk automatically.

Updating from stable to dev branch did not bump the version number in the fog webinterface and has not resolved this issue.
Any hints on how to resolve this without downgrading? Seems to be an issue with the order in which the linux kernel handles sd cards.
Using the latest init.xz and bzImage from https://github.com/FOGProject/fos/releases did not help either

RAThomas

@pilipp_edv

Maybe try stepping back to older kernels via the web GUI, FOG Configuration -> Kernel Update

That way you can test if it is purely a kernel issue without downgrading anything else.

pilipp_edv

This post is deleted!

pilipp_edv

@RAThomas thanks for the hint, switching to bzimage from fog 1.5.9 did not fix this issue however. still fails with the same error.

pilipp_edv

@pilipp_edv
re-ran the current stable installer to get the current bzImage and init.xz again and now this is the error when trying to deploy

pilipp_edv

using different bzImage from 2024 resolved this issue for me.

thanks again @RAThomas for the suggestion, this topic can be marked as resolved.

JJ Fullmer

@pilipp_edv
Glad you got it figure out.
In case you aren’t aware, you can download that bzImage as a different name like bzImage-mmc and use that case sensitive name in the Host Kernel field on any host you have with the mmc and your other hosts can use the default latest.

Would you be willing to share more info on the make/model of these computers and or the make/model of the mmc controller and such? Although it could just be down to what driver versions are included by linux at the kernel level with different versions of the kernel, we can also check if there was a config change in what we include in the kernel between then and now that could have caused this.

pilipp_edv

@JJ-Fullmer didn’t think of that to be honest. neat functionality though.

The computers in question are thinclients made by IGEL with model name M350C. I don’t have any spec sheet at hand, and this is all the information I can get from lshw:

*-mmc0
       description: MMC Host
       physical id: 1
       logical name: mmc0
     *-device
          description: SD/MMC Device
          product: MB2908
          vendor: Unknown (112)
          physical id: 1
          bus info: mmc@0:0001
          date: 12/2021
          serial: 786513286
          capabilities: mmc
        *-interface:0
             physical id: 1
             logical name: /dev/mmcblk0rpmb
        *-interface:1
             physical id: 2
             logical name: /dev/mmcblk0
             size: 7818182656
             capabilities: gpt-1.00 partitioned partitioned:gpt
             configuration: guid=1a95b8bc-00fe-4914-b3e5-fbfeadcec3f3 logicalsectorsize=512 sectorsize=512
           *-volume:0 UNCLAIMED
                description: Windows FAT volume
                vendor: mkfs.fat
                physical id: 1
                version: FAT32
                serial: 2897-15bc
                size: 510MiB
                capacity: 511MiB
                capabilities: boot fat initialized
                configuration: FATs=2 filesystem=fat
           *-volume:1
                description: EFI partition
                physical id: 2
                logical name: /dev/mmcblk0p2
                logical name: /
                logical name: /boot/grub2/i386-pc
                logical name: /home
                logical name: /boot/grub2/x86_64-efi
                logical name: /root
                logical name: /srv
                logical name: /opt
                logical name: /usr/local
                logical name: /var
                serial: 604ab399-44a4-4424-b2a1-6c00b24e85fe
                capacity: 6942MiB
                configuration: mount.fstype=btrfs mount.options=rw,relatime,ssd,discard=async,space_cache=v2,subvolid=257,subvol=/@/var state=mounted

here’s the sata controller:

  *-sata                    
       description: SATA controller
       product: FCH SATA Controller [AHCI mode]
       vendor: Advanced Micro Devices, Inc. [AMD]
       physical id: 0
       bus info: pci@0000:03:00.0
       version: 61
       width: 32 bits
       clock: 33MHz
       capabilities: sata pm pciexpress msi ahci_1.0 bus_master cap_list
       configuration: driver=ahci latency=0
       resources: irq:37 memory:c0200000-c02007ff

some more info from /sys/block/mmcblk0 :

cat /sys/block/mmcblk0/device/manfid
0x000070

cat /sys/block/mmcblk0/device/oemid 
0x0100

dmesg logs :

 dmesg | grep -i mmc
[    2.402874] [     T43] mmc0: SDHCI controller on ACPI [AMDI0040:00] using ADMA
[    2.486871] [     T64] mmc0: new HS400 MMC card at address 0001
[    2.525628] [    T360] mmcblk0: mmc0:0001 MB2908 7.28 GiB
[    2.538622] [    T360]  mmcblk0: p1 p2
[    2.540006] [    T360] mmcblk0boot0: mmc0:0001 MB2908 4.00 MiB
[    2.541111] [    T360] mmcblk0boot1: mmc0:0001 MB2908 4.00 MiB
[    2.542009] [    T360] mmcblk0rpmb: mmc0:0001 MB2908 4.00 MiB, chardev (240:0)
[    7.779557] [    T534] BTRFS: device fsid 05497210-4970-4c6e-8f81-0e94b0309f1d devid 1 transid 224 /dev/mmcblk0p2 (179:2) scanned by mount (534)
[    7.780300] [    T534] BTRFS info (device mmcblk0p2): first mount of filesystem 05497210-4970-4c6e-8f81-0e94b0309f1d
[    7.780325] [    T534] BTRFS info (device mmcblk0p2): using crc32c (crc32c-x86) checksum algorithm
[    7.780334] [    T534] BTRFS info (device mmcblk0p2): using free-space-tree

info from mmc-utils :

mmc extcsd read /dev/mmcblk0
=============================================
  Extended CSD rev 1.8 (MMC 5.1)
=============================================

Card Supported Command sets [S_CMD_SET: 0x01]
HPI Features [HPI_FEATURE: 0x01]: implementation based on CMD13
Background operations support [BKOPS_SUPPORT: 0x01]
Max Packet Read Cmd [MAX_PACKED_READS: 0x3c]
Max Packet Write Cmd [MAX_PACKED_WRITES: 0x20]
Data TAG support [DATA_TAG_SUPPORT: 0x01]
Data TAG Unit Size [TAG_UNIT_SIZE: 0x03]
Tag Resources Size [TAG_RES_SIZE: 0x00]
Context Management Capabilities [CONTEXT_CAPABILITIES: 0x05]
Large Unit Size [LARGE_UNIT_SIZE_M1: 0x0f]
Extended partition attribute support [EXT_SUPPORT: 0x03]
Generic CMD6 Timer [GENERIC_CMD6_TIME: 0x32]
Power off notification [POWER_OFF_LONG_TIME: 0xff]
Cache Size [CACHE_SIZE] is 128 KiB
Background operations status [BKOPS_STATUS: 0x00]
1st Initialisation Time after programmed sector [INI_TIMEOUT_AP: 0x64]
Power class for 52MHz, DDR at 3.6V [PWR_CL_DDR_52_360: 0x00]
Power class for 52MHz, DDR at 1.95V [PWR_CL_DDR_52_195: 0x00]
Power class for 200MHz at 3.6V [PWR_CL_200_360: 0x00]
Power class for 200MHz, at 1.95V [PWR_CL_200_195: 0x00]
Minimum Performance for 8bit at 52MHz in DDR mode:
 [MIN_PERF_DDR_W_8_52: 0x00]
 [MIN_PERF_DDR_R_8_52: 0x00]
TRIM Multiplier [TRIM_MULT: 0x11]
Secure Feature support [SEC_FEATURE_SUPPORT: 0x55]
Boot Information [BOOT_INFO: 0x07]
 Device supports alternative boot method
 Device supports dual data rate during boot
 Device supports high speed timing during boot
Boot partition size [BOOT_SIZE_MULTI: 0x20]
Access size [ACC_SIZE: 0x08]
High-capacity erase unit size [HC_ERASE_GRP_SIZE: 0x01]
 i.e. 512 KiB
High-capacity erase timeout [ERASE_TIMEOUT_MULT: 0x11]
Reliable write sector count [REL_WR_SEC_C: 0x01]
High-capacity W protect group size [HC_WP_GRP_SIZE: 0x10]
 i.e. 8192 KiB
Sleep current (VCC) [S_C_VCC: 0x08]
Sleep current (VCCQ) [S_C_VCCQ: 0x08]
Sleep/awake timeout [S_A_TIMEOUT: 0x15]
Sector Count [SEC_COUNT: 0x00e90000]
 Device is block-addressed
Minimum Write Performance for 8bit:
 [MIN_PERF_W_8_52: 0x08]
 [MIN_PERF_R_8_52: 0x08]
 [MIN_PERF_W_8_26_4_52: 0x08]
 [MIN_PERF_R_8_26_4_52: 0x08]
Minimum Write Performance for 4bit:
 [MIN_PERF_W_4_26: 0x08]
 [MIN_PERF_R_4_26: 0x08]
Power classes registers:
 [PWR_CL_26_360: 0x00]
 [PWR_CL_52_360: 0x00]
 [PWR_CL_26_195: 0x00]
 [PWR_CL_52_195: 0x00]
Partition switching timing [PARTITION_SWITCH_TIME: 0xff]
Out-of-interrupt busy timing [OUT_OF_INTERRUPT_TIME: 0xff]
I/O Driver Strength [DRIVER_STRENGTH: 0x1f]
Card Type [CARD_TYPE: 0x57]
 HS400 Dual Data Rate eMMC @200MHz 1.8VI/O
 HS200 Single Data Rate eMMC @200MHz 1.8VI/O
 HS Dual Data Rate eMMC @52MHz 1.8V or 3VI/O
 HS eMMC @52MHz - at rated device voltage(s)
 HS eMMC @26MHz - at rated device voltage(s)
CSD structure version [CSD_STRUCTURE: 0x02]
Command set [CMD_SET: 0x00]
Command set revision [CMD_SET_REV: 0x00]
Power class [POWER_CLASS: 0x00]
High-speed interface timing [HS_TIMING: 0x13]
Enhanced Strobe mode [STROBE_SUPPORT: 0x01]
Erased memory content [ERASED_MEM_CONT: 0x00]
Boot configuration bytes [PARTITION_CONFIG: 0x00]
 Not boot enable
 No access to boot partition
Boot config protection [BOOT_CONFIG_PROT: 0x00]
Boot bus Conditions [BOOT_BUS_CONDITIONS: 0x00]
High-density erase group definition [ERASE_GROUP_DEF: 0x01]
Boot write protection status registers [BOOT_WP_STATUS]: 0x00
Boot Area Write protection [BOOT_WP]: 0x00
 Power ro locking: possible
 Permanent ro locking: possible
 partition 0 ro lock status: not locked
 partition 1 ro lock status: not locked
User area write protection register [USER_WP]: 0x00
FW configuration [FW_CONFIG]: 0x00
RPMB Size [RPMB_SIZE_MULT]: 0x20
Write reliability setting register [WR_REL_SET]: 0x00
 user area: existing data is at risk if a power failure occurs during a write operation
 partition 1: existing data is at risk if a power failure occurs during a write operation
 partition 2: existing data is at risk if a power failure occurs during a write operation
 partition 3: existing data is at risk if a power failure occurs during a write operation
 partition 4: existing data is at risk if a power failure occurs during a write operation
Write reliability parameter register [WR_REL_PARAM]: 0x15
 Device supports writing EXT_CSD_WR_REL_SET
 Device supports the enhanced def. of reliable write
Enable background operations handshake [BKOPS_EN]: 0x00
H/W reset function [RST_N_FUNCTION]: 0x00
HPI management [HPI_MGMT]: 0x01
Partitioning Support [PARTITIONING_SUPPORT]: 0x07
 Device support partitioning feature
 Device can have enhanced tech.
Max Enhanced Area Size [MAX_ENH_SIZE_MULT]: 0x0001d2
 i.e. 3817472 KiB
Partitions attribute [PARTITIONS_ATTRIBUTE]: 0x00
Partitioning Setting [PARTITION_SETTING_COMPLETED]: 0x00
 Device partition setting NOT complete
General Purpose Partition Size
 [GP_SIZE_MULT_4]: 0x000000
 [GP_SIZE_MULT_3]: 0x000000
 [GP_SIZE_MULT_2]: 0x000000
 [GP_SIZE_MULT_1]: 0x000000
Enhanced User Data Area Size [ENH_SIZE_MULT]: 0x000000
 i.e. 0 KiB
Enhanced User Data Start Address [ENH_START_ADDR]: 0x00000000
 i.e. 0 bytes offset
Bad Block Management mode [SEC_BAD_BLK_MGMNT]: 0x00
Periodic Wake-up [PERIODIC_WAKEUP]: 0x00
Program CID/CSD in DDR mode support [PROGRAM_CID_CSD_DDR_SUPPORT]: 0x01
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[127]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[126]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[125]]: 0x20
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[124]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[123]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[122]]: 0x20
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[121]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[120]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[119]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[118]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[117]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[116]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[115]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[114]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[113]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[112]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[111]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[110]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[109]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[108]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[107]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[106]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[105]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[104]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[103]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[102]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[101]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[100]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[99]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[98]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[97]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[96]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[95]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[94]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[93]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[92]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[91]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[90]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[89]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[88]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[87]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[86]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[85]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[84]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[83]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[82]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[81]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[80]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[79]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[78]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[77]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[76]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[75]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[74]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[73]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[72]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[71]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[70]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[69]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[68]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[67]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[66]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[65]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[64]]: 0x00
Native sector size [NATIVE_SECTOR_SIZE]: 0x00
Sector size emulation [USE_NATIVE_SECTOR]: 0x00
Sector size [DATA_SECTOR_SIZE]: 0x00
1st initialization after disabling sector size emulation [INI_TIMEOUT_EMU]: 0x00
Class 6 commands control [CLASS_6_CTRL]: 0x00
Number of addressed group to be Released[DYNCAP_NEEDED]: 0x00
Exception events control [EXCEPTION_EVENTS_CTRL]: 0x0000
Exception events status[EXCEPTION_EVENTS_STATUS]: 0x0000
Extended Partitions Attribute [EXT_PARTITIONS_ATTRIBUTE]: 0x0000
Context configuration [CONTEXT_CONF[51]]: 0x00
Context configuration [CONTEXT_CONF[50]]: 0x00
Context configuration [CONTEXT_CONF[49]]: 0x00
Context configuration [CONTEXT_CONF[48]]: 0x00
Context configuration [CONTEXT_CONF[47]]: 0x00
Context configuration [CONTEXT_CONF[46]]: 0x00
Context configuration [CONTEXT_CONF[45]]: 0x00
Context configuration [CONTEXT_CONF[44]]: 0x00
Context configuration [CONTEXT_CONF[43]]: 0x00
Context configuration [CONTEXT_CONF[42]]: 0x00
Context configuration [CONTEXT_CONF[41]]: 0x00
Context configuration [CONTEXT_CONF[40]]: 0x00
Context configuration [CONTEXT_CONF[39]]: 0x00
Context configuration [CONTEXT_CONF[38]]: 0x00
Context configuration [CONTEXT_CONF[37]]: 0x00
Packed command status [PACKED_COMMAND_STATUS]: 0x00
Packed command failure index [PACKED_FAILURE_INDEX]: 0x00
Power Off Notification [POWER_OFF_NOTIFICATION]: 0x01
Control to turn the Cache ON/OFF [CACHE_CTRL]: 0x01
Control to turn the Cache Barrier ON/OFF [BARRIER_CTRL]: 0x00
eMMC Firmware Version: �
eMMC SECURE_WP_SUPPORT: 1
eMMC SECURE_WP_EN_STATUS: 0
eMMC Life Time Estimation A [EXT_CSD_DEVICE_LIFE_TIME_EST_TYP_A]: 0x01
eMMC Life Time Estimation B [EXT_CSD_DEVICE_LIFE_TIME_EST_TYP_B]: 0x01
eMMC Pre EOL information [EXT_CSD_PRE_EOL_INFO]: 0x01
Secure Removal Type [SECURE_REMOVAL_TYPE]: 0x01
 information is configured to be removed by an erase of the physical memory
 Supported Secure Removal Type:
  information removed by an erase of the physical memory
Command Queue Support [CMDQ_SUPPORT]: 0x01
Command Queue Depth [CMDQ_DEPTH]: 16
Command Enabled [CMDQ_MODE_EN]: 0x00
Note: CMDQ_MODE_EN may not indicate the runtime CMDQ ON or OFF.
Please check sysfs node '/sys/devices/.../mmc_host/mmcX/mmcX:XXXX/cmdq_en'

let me know if this helps or if you’d like anything else

JJ Fullmer

@pilipp_edv That should be enough I imagine, thanks for being thorough. I’ll take a look at the kernel config when I get a chance.

Igel M350C - unable to use integrated mmc after recent FOG Update

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