Comment 3 for bug 1166246
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| Mathieu Poirier (mathieu.poirier-deactivatedaccount) wrote Re: Lockup on post 3.9 IKS kernel | #3 |
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1b1ed1a
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This bug is currently being investigated internally by ARM as a potential platform problem. The issue occurs when the file system is hosted on MMC.
The hypothesis is that a DMA transfer is in progress when a cache flush is requested. The flush operation needs to wait for the MMC DMA transfer to finish, hence introducing a delay that is deemed too long by the firmware. When faced with such condition the processor is switched off without the final cache flush going through, resulting in a corruption of the processor bring-up state machine.