[G2 and Desire Z Q&A, Help & Troubleshooting] techpraxis:
Does this mean I have a fried eMMC? Looks like it. could someone verify?

Using the procedures on the page http://xdaforums.com/showthread.php?t=1983163, i found the following:

In ADB shell, grepping for the eMMC yields this:

~ # dmesg | grep mmc0

<3>[ 4.904113] mmc0: No card detect facilities available

<6>[ 4.904663] mmc0: Qualcomm MSM SDCC at 0x00000000a0500000 irq 98,0 dma 8

<6>[ 4.904907] mmc0: Platform slot type: MMC

<6>[ 4.905059] mmc0: 4 bit data mode disabled

<6>[ 4.905273] mmc0: 8 bit data mode enabled

<6>[ 4.905426] mmc0: MMC clock 144000 -> 50000000 Hz, PCLK 96000000 Hz

<6>[ 4.905670] mmc0: Slot eject status = 0

<6>[ 4.905792] mmc0: Power save feature enable = 1

<6>[ 4.905914] mmc0: DM non-cached buffer at ffa0c000, dma_addr 0x0bb9a000

<6>[ 4.906158] mmc0: DM cmd busaddr 0x0bb9a000, cmdptr busaddr 0x0bb9a300

<6>[ 5.065429] mmc0: new high speed MMC card at address 0001

<6>[ 5.067108] mmcblk0: mmc0:0001 M4G2DE 2.04 GiB

<3>[ 6.364196] mmc0: failed to get card ready

<6>[ 6.364440] mmc0: reinit card

<4>[ 6.364562] mmc0: Starting deferred resume

<6>[ 8.404327] mmc0: Deferred resume failed

<3>[ 8.510040] mmc0: DMA channel flushed (0x80000004)

<6>[ 8.511199] mmc0: Controller has been reset

<6>[ 8.511962] mmc0: Worked around bug 1535304

<3>[ 8.514099] mmc0: DMA channel flushed (0x80000004)

<6>[ 8.515228] mmc0: Controller has been reset

<6>[ 8.515655] mmc0: Worked around bug 1535304

<6>[ 8.524291] mmc0: reinit card

<4>[ 8.524963] mmc0: Starting deferred resume

<6>[ 10.564331] mmc0: Deferred resume failed

<3>[ 10.715789] mmc0: DMA channel flushed (0x80000004)

<6>[ 10.716217] mmc0: Controller has been reset

<6>[ 10.716430] mmc0: Worked around bug 1535304

<3>[ 10.717803] mmc0: DMA channel flushed (0x80000004)

<6>[ 10.718200] mmc0: Controller has been reset

<6>[ 10.718414] mmc0: Worked around bug 1535304

<6>[ 10.725219] mmc0: reinit card

<4>[ 10.725433] mmc0: Starting deferred resume

<6>[ 12.764282] mmc0: Deferred resume failed

<3>[ 12.766510] mmc0: DMA channel flushed (0x80000004)

<6>[ 12.766967] mmc0: Controller has been reset

<6>[ 12.767181] mmc0: Worked around bug 1535304

<3>[ 12.768585] mmc0: DMA channel flushed (0x80000004)

<6>[ 12.769042] mmc0: Controller has been reset

<6>[ 12.769226] mmc0: Worked around bug 1535304

<6>[ 12.776184] mmc0: reinit card

<4>[ 12.776306] mmc0: Starting deferred resume

<6>[ 14.814331] mmc0: Deferred resume failed

<3>[ 14.936950] mmc0: DMA channel flushed (0x80000004)

<6>[ 14.937408] mmc0: Controller has been reset

<6>[ 14.937622] mmc0: Worked around bug 1535304

<3>[ 14.938964] mmc0: DMA channel flushed (0x80000004)

<6>[ 14.939422] mmc0: Controller has been reset

<6>[ 14.939727] mmc0: Worked around bug 1535304

<6>[ 14.946594] mmc0: reinit card

<4>[ 14.946716] mmc0: Starting deferred resume

<6>[ 16.984283] mmc0: Deferred resume failed

<3>[ 16.986480] mmc0: DMA channel flushed (0x80000004)

<6>[ 16.986938] mmc0: Controller has been reset

<6>[ 16.987152] mmc0: Worked around bug 1535304

<3>[ 16.988525] mmc0: DMA channel flushed (0x80000004)

<6>[ 16.988983] mmc0: Controller has been reset

<6>[ 16.989257] mmc0: Worked around bug 1535304

<6>[ 16.996093] mmc0: reinit card

<4>[ 16.996215] mmc0: Starting deferred resume

<6>[ 19.034301] mmc0: Deferred resume failed

<3>[ 19.175415] mmc0: DMA channel flushed (0x80000004)

<6>[ 19.175872] mmc0: Controller has been reset

<6>[ 19.176208] mmc0: Worked around bug 1535304

<3>[ 19.177459] mmc0: DMA channel flushed (0x80000004)

<6>[ 19.177917] mmc0: Controller has been reset

<6>[ 19.178222] mmc0: Worked around bug 1535304

<6>[ 19.185028] mmc0: reinit card

<4>[ 19.185180] mmc0: Starting deferred resume

<6>[ 21.224273] mmc0: Deferred resume failed

<3>[ 21.226348] mmc0: DMA channel flushed (0x80000004)

<6>[ 21.226806] mmc0: Controller has been reset

<6>[ 21.227111] mmc0: Worked around bug 1535304

<3>[ 21.228393] mmc0: DMA channel flushed (0x80000004)

<6>[ 21.228942] mmc0: Controller has been reset

<6>[ 21.229156] mmc0: Worked around bug 1535304

<6>[ 21.235961] mmc0: reinit card

<4>[ 21.236083] mmc0: Starting deferred resume

<6>[ 23.274291] mmc0: Deferred resume failed