[Galaxy S II Q&A, Help & Troubleshooting] Crescendo Xenomorph:
Seems I got interesting thing from recovery log.

<6>[ 1.013652] mshci: Mobile Storage Host Controller Interface driver

<6>[ 1.013760] mshci: Copyright (c) 2011 Samsung Electronics Co., Ltd

<6>[ 1.014088] dw_mmc dw_mmc: clock source 0: sclk_dwmci (90316800 Hz)

<3>[ 1.014430] mmc0: Version ID 0x5342230a.

<6>[ 1.014817] mmc0: FIFO WMARK FOR RX 0x20 WX 0x10. ###########

<6>[ 1.015617] mmc0: MSHCI controller on samsung-mshci [dw_mmc] using IDMA

<6>[ 1.016229] sdhci: Secure Digital Host Controller Interface driver

<6>[ 1.016339] sdhci: Copyright(c) Pierre Ossman

<6>[ 1.016621] s3c-sdhci s3c-sdhci.2: clock source 2: sclk_mmc (8888888 Hz)

<6>[ 1.017128] mmc1: vtf_2.8v regulator found

<3>[ 1.045381] mmc0: cmd 52 response timeout error

<3>[ 1.045811] mmc0: cmd 52 response timeout error

<3>[ 1.049490] mmc0: cmd 8 response timeout error

<3>[ 1.049982] mmc0: cmd 5 response timeout error

<3>[ 1.050409] mmc0: cmd 5 response timeout error

<3>[ 1.050887] mmc0: cmd 5 response timeout error

<3>[ 1.051296] mmc0: cmd 5 response timeout error

<3>[ 1.051724] mmc0: cmd 55 response timeout error

<3>[ 1.052224] mmc0: cmd 55 response timeout error

<3>[ 1.052643] mmc0: cmd 55 response timeout error

<3>[ 1.053064] mmc0: cmd 55 response timeout error

<4>[ 1.084306] mmc0: Voltage range not supported for power class.

<3>[ 1.084402] mmc0: power class selection to bus width 8 failed

<4>[ 1.084821] mmc0: Voltage range not supported for power class.

<3>[ 1.084916] mmc0: power class selection to bus width 8 ddr 2 failed

<6>[ 1.085325] mmc0: new high speed DDR MMC card at address 0001

<6>[ 1.095775] mmcblk0: mmc0:0001 VYL00M 14.6 GiB

<6>[ 1.096122] mmcblk0boot0: mmc0:0001 VYL00M partition 1 512 KiB

<6>[ 1.096387] mmcblk0boot1: mmc0:0001 VYL00M partition 2 512 KiB

<4>[ 1.102054] GPT:Primary header thinks Alt. header is not at the end of the disk.

<4>[ 1.102225] GPT:30775295 != 30777343

<4>[ 1.102314] GPT:Alternate GPT header not at the end of the disk.

<4>[ 1.102403] GPT:30775295 != 30777343

<4>[ 1.102560] GPT: Use GNU Parted to correct GPT errors.

<6>[ 1.102750] mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 p12

<6>[ 1.117711] mmcblk0boot1: unknown partition table

<6>[ 1.119540] mmcblk0boot0: unknown partition table

<6>[ 1.121911] mmc1: SDHCI controller on samsung-hsmmc [s3c-sdhci.2] using ADMA

<6>[ 1.122243] wake enabled for irq 380

<6>[ 1.122427] s3c-sdhci s3c-sdhci.3: clock source 2: sclk_mmc (8888888 Hz)

<3>[ 1.122651] mmc2: no regulator found

<6>[ 1.123177] mmc2: SDHCI controller on samsung-hsmmc [s3c-sdhci.3] using ADMA

<6>[ 1.137146] usbcore: registered new interface driver usbhid

<6>[ 1.137245] usbhid: USB HID core driver

<6>[ 1.138712] akm8975_probe is called.

<6>[ 1.139841] akm8975_probe: asa_x = 170, asa_y = 170, asa_z = 180

<6>[ 1.140655] Registered sensors device: magnetic_sensor

<6>[ 1.140772] akm8975_probe is successful.

<6>[ 1.150396] mmc1: cmd 52 command timeout error

<6>[ 1.151948] mmc1: cmd 52 command timeout error

<6>[ 1.160128] mmc1: cmd 5 command timeout error

<6>[ 1.160608] mmc1: cmd 5 command timeout error

<6>[ 1.161018] mmc1: cmd 5 command timeout error

<6>[ 1.161423] mmc1: cmd 5 command timeout error

<3>[ 1.200298] cm3663_setup_reg: initial proximity value = 1

<6>[ 1.203200] input: proximity_sensor as /devices/virtual/input/input4

<6>[ 1.205504] input: light_sensor as /devices/virtual/input/input5

<6>[ 1.208420] input: gyro_sensor as /devices/virtual/input/input6

<6>[ 1.209748] mmc1: new high speed SDHC card at address 0001

<6>[ 1.211113] mmcblk1: mmc1:0001 00000 7.60 GiB

<6>[ 1.212952] mmcblk1: p1