Opened 11 years ago
Last modified 5 years ago
#423 new defect
DMA allocations need to survive address space destruction
| Reported by: | Martin Decky | Owned by: | Jakub Jermář |
|---|---|---|---|
| Priority: | major | Milestone: | |
| Component: | helenos/kernel/generic | Version: | mainline |
| Keywords: | Cc: | ||
| Blocker for: | Depends on: | ||
| See also: |
Description
The current DMA allocator does not track/lock DMA mappings beyond address space destruction. This can be potentially fatal as a DMA memory once assigned to hardware can be overwritten by the hardware if the original driver dies and the physical frames from its address space are recycled.
Change History (3)
comment:1 Changed 11 years ago by
| Milestone: | 0.5.0 → 0.5.1 |
|---|
comment:2 Changed 9 years ago by
| Milestone: | 0.6.0 → 0.7.1 |
|---|
comment:3 Changed 5 years ago by
| Milestone: | 0.7.1 |
|---|
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