SDHC card not recognized
Bug #591941 reported by
Mathieu Poirier
This bug affects 3 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
High
|
Lee Jones | ||
Maverick |
Fix Released
|
High
|
Lee Jones |
Bug Description
Maverick kernel fails to initialize the SDHC card properly upon cold startup. Here are a few facts:
- started after the rebase with 2.6.34
- some SD cards work, others don't.
- when the initrd can't mount the root partition, you get dropped in a busybox shell. While waiting in the shell, if the card is yanked in and out, the kernel recognize the card properly. From there the root partition can be mounted manually.
- When booting the line "[ 2.283355] mmc0: error -110 whilst initialising SD card" indicate the SD card can't be recognized by the kernel.
Changed in linux (Ubuntu): | |
status: | New → Confirmed |
tags: | added: armel |
Changed in linux (Ubuntu Maverick): | |
importance: | Undecided → High |
milestone: | none → maverick-alpha-2 |
Changed in linux (Ubuntu Maverick): | |
status: | Confirmed → Triaged |
status: | Triaged → In Progress |
tags: | added: iso-testing |
Changed in linux (Ubuntu Maverick): | |
milestone: | maverick-alpha-3 → ubuntu-10.10-beta |
Changed in linux (Ubuntu Maverick): | |
assignee: | Mathieu Poirier (mathieu.poirier) → Lee Jones (lag) |
tags: | added: maverick |
Changed in linux (Ubuntu Maverick): | |
status: | In Progress → Fix Committed |
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- posted request for help on "<email address hidden>"
- got in contact with Jayabharath to get access to the original TI developers.
- have been working with TI developers on the problem.
- issue is related to DMA - transfers are coming back with a timeout error when preemption model is set to PREEMPT_VOLUNTARY.
- got a patch from TI to set timeouts to something overly long but still no resolution.