Date:	Thu, 29 Aug 2013 15:39:59 -0400
From:	Kevyn-Alexandre Paré 
	<kevyn.alexandre.pare@...il.com>
To:	"Theodore Ts'o" <tytso@....edu>
Cc:	linux-omap@...r.kernel.org, linux-mmc@...r.kernel.org,
	linux-ext4@...r.kernel.org, arnd@...aro.org
Subject: Re: Unable to randomly boot rootfs (EXT3 or EXT4) from SD: MMC error
 -110 (TIMEDOUT)

On Wed, Aug 28, 2013 at 1:56 PM, Theodore Ts'o <tytso@....edu> wrote:
> On Wed, Aug 28, 2013 at 11:22:58AM -0400, Kevyn-Alexandre Paré wrote:
>> We try multiple of our system ( Different micro SD from SanDisk +
>> Overo with OMAP3) and they are all doing this with the SanDisk 64GB,
>> 32GB :
>> http://www.sandisk.com/products/memory-cards/microsd/ultra-class10-for-android/?capacity=64GB
>>
>> The problem seem to be easier to reproduce when we just flash the
>> micro SD (partition, format & copy rootfs) at it first boot.
>> Also, when we let the system down for a couple of days and then
>> sometimes we need to reboot the system multiple times before it fall
>> back alright.
>>
>> We found a old patch that was simply increasing the timeout of the host:
>> http://cgit.openembedded.org/cgit.cgi/openembedded/tree/recipes/linux/linux-omap-2.6.39/sakoman/0024-omap-mmc-Adjust-dto-to-eliminate-timeout-errors.patch?h=org.openembedded.dev
>>
>> By settings the timeout to zero I reproduce kind of the same timeout
>> error at every boot. That was expected since I don't let enough time
>> to the controller to respond...
>>
>> Could the mix of that MMC controller and these card is not optimal? Is
>> the driver fully supporting the UHS-I speed grade?
>
> I've cc'ed Arnd Bergman who works at Linaro; I suspect that if he
> doesn't know the answer off the top of his head, he can probably
> direct you to someone who will.
>

Thx Ted,

Here's more details that I manage to gathered. I add logs in
drivers/mmc/card/block.c in function mmc_blk_err_check() to grab the
command opcode:
pr_err("### KA: mmc_blk_err_check CMD %u\n", areq->mrq->cmd->opcode);

Steps that I most often reproduce it.
Flashing microSD from Ubuntu 12.10 creating 2 partitions (FAT,EXT4)
with USB dongle if this may help (we try with different one and the
same result happen)?

Aug 29 15:26:38 kap kernel: [371788.469842] usb 1-1: new high-speed
USB device number 19 using ehci_hcd
Aug 29 15:26:38 kap kernel: [371788.655389] usb 1-1: New USB device
found, idVendor=0bda, idProduct=0119
Aug 29 15:26:38 kap kernel: [371788.656090] usb 1-1: New USB device
strings: Mfr=1, Product=2, SerialNumber=3
Aug 29 15:26:38 kap kernel: [371788.656150] usb 1-1: Product: USB2.0-CRW
Aug 29 15:26:38 kap kernel: [371788.656173] usb 1-1: Manufacturer: Generic
Aug 29 15:26:38 kap kernel: [371788.656187] usb 1-1: SerialNumber:
20090815198100000
Aug 29 15:26:39 kap kernel: [371789.101509] scsi16 : usb-storage 1-1:1.0
Aug 29 15:26:40 kap kernel: [371790.114299] scsi 16:0:0:0:
Direct-Access     Generic- SD/MMC           1.00 PQ: 0 ANSI: 0 CCS
Aug 29 15:26:40 kap kernel: [371790.126066] sd 16:0:0:0: Attached scsi
generic sg2 type 0
Aug 29 15:26:40 kap kernel: [371790.962739] sd 16:0:0:0: [sdb]
124735488 512-byte logical blocks: (63.8 GB/59.4 GiB)
Aug 29 15:26:40 kap kernel: [371790.967661] sd 16:0:0:0: [sdb] Write
Protect is off
Aug 29 15:26:40 kap kernel: [371790.967713] sd 16:0:0:0: [sdb] Mode
Sense: 03 00 00 00
Aug 29 15:26:40 kap kernel: [371790.971559] sd 16:0:0:0: [sdb] No
Caching mode page present
Aug 29 15:26:40 kap kernel: [371790.971742] sd 16:0:0:0: [sdb]
Assuming drive cache: write through
Aug 29 15:26:40 kap kernel: [371790.991103] sd 16:0:0:0: [sdb] No
Caching mode page present
Aug 29 15:26:40 kap kernel: [371790.991113] sd 16:0:0:0: [sdb]
Assuming drive cache: write through
Aug 29 15:26:40 kap kernel: [371790.995660]  sdb: sdb1 sdb2
Aug 29 15:26:40 kap kernel: [371791.014090] sd 16:0:0:0: [sdb] No
Caching mode page present
Aug 29 15:26:40 kap kernel: [371791.014101] sd 16:0:0:0: [sdb]
Assuming drive cache: write through
Aug 29 15:26:40 kap kernel: [371791.014169] sd 16:0:0:0: [sdb]
Attached SCSI removable disk

Then take the SD but it in the embedded device and boot it. Note that
most of the time the next boot pass, with mmc_blk_err_check for CMD 18
& 25.

The output of the kernel panic (3.4.59) gives:
[...]
Waiting for root device /dev/mmcblk0p2...
mmc0: host does not support reading read-only switch. assuming write-enable.
mmc0: new high speed SDXC card at address aaaa
mmcblk0: mmc0:aaaa SU64G 59.4 GiB
### KA: mmc_blk_err_check CMD 18
 mmcblk0: p1 p2
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
mmc1: new SDIO card at address 0001
### KA: mmc_blk_err_check CMD 25
EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
VFS: Mounted root (ext4 filesystem) on device 179:2.
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
devtmpfs: mounted
Freeing init memory: 220K
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
INIT: version 2.86 booting
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
Please wait: boo### KA: mmc_blk_err_check CMD 18
ting...
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
Starting udev
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 25
### KA: mmc_blk_err_check CMD 25
hub 1-0:1.0: hub_suspend
usb usb1: bus auto-suspend, wakeup 1
ehci-omap ehci-omap.0: suspend root hub
### KA: mmc_blk_err_check CMD 25
### KA: mmc_blk_err_check CMD 25
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
udevd (90): /proc/90/oom_adj is deprecated, please use
/proc/90/oom_score_adj instead.
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
ads7846 spi1.0: touchscreen, irq 210
### KA: mmc_blk_err_check CMD 18
input: ADS7846 Touchscreen as
/devices/platform/omap2_mcspi.1/spi_master/spi1/spi1.0/input/input0
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
input: twl4030_pwrbutton as
/devices/platform/omap_i2c.1/i2c-1/1-0049/twl4030_pwrbutton/input/input1
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
### KA: mmc_blk_err_check CMD 18
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 416
Buffer I/O error on device mmcblk0, logical block 52
### KA: mmc_blk_err_check CMD 18
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 67681792
end_request: I/O error, dev mmcblk0, sector 67681800
end_request: I/O error, dev mmcblk0, sector 67681808
end_request: I/O error, dev mmcblk0, sector 67681816
end_request: I/O error, dev mmcblk0, sector 67681824
end_request: I/O error, dev mmcblk0, sector 67681832
end_request: I/O error, dev mmcblk0, sector 67681840
end_request: I/O error, dev mmcblk0, sector 67681848
end_request: I/O error, dev mmcblk0, sector 67681856
end_request: I/O error, dev mmcblk0, sector 67681864
end_request: I/O error, dev mmcblk0, sector 67681872
end_request: I/O error, dev mmcblk0, sector 67681880
end_request: I/O error, dev mmcblk0, sector 67681888
end_request: I/O error, dev mmcblk0, sector 67681896
end_request: I/O error, dev mmcblk0, sector 67681904
end_request: I/O error, dev mmcblk0, sector 67681912
end_request: I/O error, dev mmcblk0, sector 67681920
end_request: I/O error, dev mmcblk0, sector 67681928
end_request: I/O error, dev mmcblk0, sector 67681936
end_request: I/O error, dev mmcblk0, sector 67681944
end_request: I/O error, dev mmcblk0, sector 67681952
end_request: I/O error, dev mmcblk0, sector 67681960
end_request: I/O error, dev mmcblk0, sector 67681968
end_request: I/O error, dev mmcblk0, sector 67681976
end_request: I/O error, dev mmcblk0, sector 67681984
end_request: I/O error, dev mmcblk0, sector 67681992
end_request: I/O error, dev mmcblk0, sector 67682000
end_request: I/O error, dev mmcblk0, sector 67682008
end_request: I/O error, dev mmcblk0, sector 67682016
end_request: I/O error, dev mmcblk0, sector 67682024
end_request: I/O error, dev mmcblk0, sector 67682032
end_request: I/O error, dev mmcblk0, sector 67682040
### KA: mmc_blk_err_check CMD 18
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 67502720
end_request: I/O error, dev mmcblk0, sector 67502728
end_request: I/O error, dev mmcblk0, sector 67502736
end_request: I/O error, dev mmcblk0, sector 67502744
### KA: mmc_blk_err_check CMD 18
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 416
Buffer I/O error on device mmcblk0, logical block 52
### KA: mmc_blk_err_check CMD 18
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 50528680
### KA: mmc_blk_err_check CMD 18
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 67502720
### KA: mmc_blk_err_check CMD 18
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 67502960
end_request: I/O error, dev mmcblk0, sector 67502968
### KA: mmc_blk_err_check CMD 18
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 67681792
### KA: mmc_blk_err_check CMD 18
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 512
Buffer I/O error on device mmcblk0, logical block 64
### KA: mmc_blk_err_check CMD 18
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 50766416
### KA: mmc_blk_err_check CMD 18
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 67502960
### KA: mmc_blk_err_check CMD 18
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 67681792
### KA: mmc_blk_err_check CMD 18
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 512
Buffer I/O error on device mmcblk0, logical block 64
### KA: mmc_blk_err_check CMD 18
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 50766416
udevd-work[220]: exec of program '/lib/udev/usb_id' failed

### KA: mmc_blk_err_check CMD 25
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 131072
Buffer I/O error on device mmcblk0p2, logical block 0
lost page write due to I/O error on mmcblk0p2
EXT4-fs error (device mmcblk0p2): ext4_find_entry:932: inode #1572945:
comm udevd: reading directory lblock 0
### KA: mmc_blk_err_check CMD 25
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 25559216
Buffer I/O error on device mmcblk0p2, logical block 3178518
EXT4-fs warning (device mmcblk0p2): ext4_end_bio:250: I/O error
writing to inode 786588 (offset 0 size 4096 starting block 3194903)
end_request: I/O error, dev mmcblk0, sector 25559224
Buffer I/O error on device mmcblk0p2, logical block 3178519
EXT4-fs warning (device mmcblk0p2): ext4_end_bio:250: I/O error
writing to inode 786590 (offset 0 size 4096 starting block 3194904)
Aborting journal on device mmcblk0p2-8.
EXT4-fs (mmcblk0p2): previous I/O error to superblock detected
EXT4-fs (mmcblk0p2): previous I/O error to superblock detected
EXT4-fs (mmcblk0p2): previous I/O error to superblock detected
### KA: mmc_blk_err_check CMD 25
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 25578592
Buffer I/O error on device mmcblk0p2, logical block 3180940
EXT4-fs warning (device mmcblk0p2): ext4_end_bio:250: I/O error
writing to inode 786591 (offset 0 size 4096 starting block 3197325)
end_request: I/O error, dev mmcblk0, sector 25578600
Buffer I/O error on device mmcblk0p2, logical block 3180941
EXT4-fs warning (device mmcblk0p2): ext4_end_bio:250: I/O error
writing to inode 786592 (offset 0 size 4096 starting block 3197326)
end_request: I/O error, dev mmcblk0, sector 25578608
Buffer I/O error on device mmcblk0p2, logical block 3180942
EXT4-fs warning (device mmcblk0p2): ext4_end_bio:250: I/O error
writing to inode 786593 (offset 0 size 4096 starting block 3197327)
### KA: mmc_blk_err_check CMD 25
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 59113472
Buffer I/O error on device mmcblk0p2, logical block 7372800
lost page write due to I/O error on mmcblk0p2
JBD2: Error -5 detected when updating journal superblock for mmcblk0p2-8.
### KA: mmc_blk_err_check CMD 18
JBD2: Detected IO errors while flushing file data on mmcblk0p2-8
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 32
Buffer I/O error on device mmcblk0, logical block 4
### KA: mmc_blk_err_check CMD 18
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 50766416
### KA: mmc_blk_err_check CMD 18
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 67502720
### KA: mmc_blk_err_check CMD 18
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 32
Buffer I/O error on device mmcblk0, logical block 4
### KA: mmc_blk_err_check CMD 18
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 50766416
### KA: mmc_blk_err_check CMD 25
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 131072
Buffer I/O error on device mmcblk0p2, logical block 0
lost page write due to I/O error on mmcblk0p2
### KA: mmc_blk_err_check CMD 25
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -110 sending status command, aborting
### KA: mmc_start_req catch error.
end_request: I/O error, dev mmcblk0, sector 59113472
Buffer I/O error on device mmcblk0p2, logical block 7372800
lost page write due to I/O error on mmcblk0p2
JBD2: Error -5 detected when updating journal superblock for mmcblk0p2-8.
### KA: mmc_blk_err_check CMD 18
Kernel panic - not syncing: EXT4-fs (device mmcblk0p2): panic forced after error

thx,

-KA
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