[#3959] Unplug MMC card from SPI-MMC daughter card, system hangs and takes long time to recover.

Submitted By: Vivi Li

Open Date

2008-03-06 03:12:08 Close Date

2008-03-14 06:33:46

Priority:

Medium High Assignee:

Graf Yang

Status:

Closed Fixed In Release:

N/A

Found In Release:

N/A Release:

Category:

N/A Board:

N/A

Processor:

N/A Silicon Revision:

Is this bug repeatable?:

Yes Resolution:

Fixed

Uboot version or rev.:

Toolchain version or rev.:

08r1-8

App binary format:

N/A

Summary: Unplug MMC card from SPI-MMC daughter card, system hangs and takes long time to recover.

Details:

Plug in a MMC card in SPI-MMC daughter card, the card can be detected.

Then unplug the MMC card, system will not respond for a long time. It may take half minute or longer to respond to key input in the console.

It's OK for SD card that I tested. This happens both in trunk and 08r1 branch.

Follow-ups

--- Graf Yang 2008-03-10 23:24:28

When unpluging the MMC card, the card detect handler will call

spi_mmc_revalidate() 'immediately', this cause the console not response. Now

have fixed.

--- Vivi Li 2008-03-14 05:47:51

I validate with all SD/MMC cards and found it fails to detect all my SanDisk SD

cards when I plug them into SD slot after kernel boot up.

Plug it to SD slot before kernel boot up, it can be detected.

--- Vivi Li 2008-03-14 06:33:46

SanDisk SD cards auto detection problem is not related to this bug. I will open

a new one.

This bug is fixed. Close it.

Thank you!

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