Überprüfen Sie den Zustand von eMMC

15

Wie kann ich den Zustand von eMMC unter Linux überprüfen?

Es scheint, dass smartctl damit nicht umgehen kann:

root@om:~# smartctl -a /dev/mmcblk0
smartctl 6.5 2016-01-24 r4214 [x86_64-linux-4.4.0-63-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

/dev/mmcblk0: Unable to detect device type
Please specify device type with the -d option.

Use smartctl -h to get a usage summary

Ich denke, kein Typ passt zu eMMC. Ich sehe diese Typen mit smartctl -h:

 -d TYPE, --device=TYPE
 Specify device type to one of: ata, scsi, sat[,auto][,N][+TYPE],
 usbcypress[,X], usbjmicron[,p][,x][,N], usbsunplus, marvell, areca,N/E,
 3ware,N, hpt,L/M/N, megaraid,N, aacraid,H,L,ID, cciss,N, auto, test

Wenn Sie neugierig sind, finden Sie hier das Logbuch meiner Odyssee: https://github.com/guettli/linux-on-emmc/blob/master/README.rst

guettli
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Antworten:

8

Sie möchten wahrscheinlich das Dienstprogramm "mmc" von mmc-utils ( https://packages.debian.org/stretch/mmc-utils ) verwenden. Ich habe jedoch noch keinen Schreib- und / oder fehlerhaften Blockzähler gesehen.

# mmc extcsd read /dev/mmcblk1
=============================================
  Extended CSD rev 1.7 (MMC 5.0)
=============================================

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: 0x3f]
Max Packet Write Cmd [MAX_PACKED_WRITES: 0x3f]
Data TAG support [DATA_TAG_SUPPORT: 0x01]
Data TAG Unit Size [TAG_UNIT_SIZE: 0x03]
Tag Resources Size [TAG_RES_SIZE: 0x03]
Context Management Capabilities [CONTEXT_CAPABILITIES: 0x05]
Large Unit Size [LARGE_UNIT_SIZE_M1: 0x00]
Extended partition attribute support [EXT_SUPPORT: 0x03]
Generic CMD6 Timer [GENERIC_CMD6_TIME: 0x19]
Power off notification [POWER_OFF_LONG_TIME: 0x19]
Cache Size [CACHE_SIZE] is 4096 KiB
Background operations status [BKOPS_STATUS: 0x00]
1st Initialisation Time after programmed sector [INI_TIMEOUT_AP: 0x50]
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: 0xdd]
Power class for 200MHz at 3.6V [PWR_CL_200_360: 0xdd]
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: 0x03]
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: 0x03]
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: 0x07]
Sleep/awake timeout [S_A_TIMEOUT: 0x12]
Sector Count [SEC_COUNT: 0x00e90000]
 Device is block-addressed
Minimum Write Performance for 8bit:
 [MIN_PERF_W_8_52: 0x0a]
 [MIN_PERF_R_8_52: 0x0a]
 [MIN_PERF_W_8_26_4_52: 0x0a]
 [MIN_PERF_R_8_26_4_52: 0x0a]
Minimum Write Performance for 4bit:
 [MIN_PERF_W_4_26: 0x0a]
 [MIN_PERF_R_4_26: 0x0a]
Power classes registers:
 [PWR_CL_26_360: 0x00]
 [PWR_CL_52_360: 0x00]
 [PWR_CL_26_195: 0xdd]
 [PWR_CL_52_195: 0xdd]
Partition switching timing [PARTITION_SWITCH_TIME: 0x03]
Out-of-interrupt busy timing [OUT_OF_INTERRUPT_TIME: 0x05]
I/O Driver Strength [DRIVER_STRENGTH: 0x1f]
Card Type [CARD_TYPE: 0x57]
 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: 0x0d]
High-speed interface timing [HS_TIMING: 0x02]
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
 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]: 0x1f
 user area: the device protects existing data if a power failure occurs during a write operation
 partition 1: the device protects existing data if a power failure occurs during a write operation
 partition 2: the device protects existing data if a power failure occurs during a write operation
 partition 3: the device protects existing data if a power failure occurs during a write operation
 partition 4: the device protects existing data if a power failure occurs during a write operation
Write reliability parameter register [WR_REL_PARAM]: 0x05
 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]: 0x000124
 i.e. 2392064 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]: 0x000000
 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]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[124]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[123]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[122]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[121]]: 0x00
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[120]]: 0x02
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]]: 0x02
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[94]]: 0x01
Vendor Specific Fields [VENDOR_SPECIFIC_FIELD[93]]: 0x04
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]]: 0x03
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]: 0x0a
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
eMMC Firmware Version: 002122  AS
user762326
quelle
3
Das ist ein großer Textblock. Können Sie erklären, wie das verwendet wird mmc-utilsund wie diese Ausgabe für die Lösung des Falls relevant ist? Ziehen Sie in Betracht, nur ein Beispiel für die Ausgabe anstelle der vollständigen Ausgabe einzuschließen, wenn dies nur ein Beispiel für die Ausgabe ist, oder stattdessen einen Screenshot.
Vylix
7

Die obige Antwort ist richtig, dass mmc-utils der richtige Weg ist. Die Version in git ( https://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc-utils.git/ ) meldet DEVICE_LIFE_TIME_EST_TYP_ {A, B}, wobei 1 0-10% reserviert ist Verwendete Blöcke, 2 sind 10-20% usw. Ich gehe davon aus, dass der betreffende Flash-Speicher dieses Feld unterstützen muss, bevor es gemeldet werden kann.

anarchetisch
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