SRU justification (Gutsy + Hardy):
Impact: Hard lockups when doing heavy (IMO just higher) I/O load. The
reason is that dma_get_required_mask returns a wrong value and thus the
memory management will get confused.
Fix: From upstream (in Intrepid) will remove the limit to the current
dma mask when actually the new limit is required.
Testcase: From kernel bug report it was sufficient to do a gzip which
hung within a few minutes.
** Changed in: linux-source-2.6.22 (Ubuntu)
Importance: Undecided => Medium
Assignee: (unassigned) => Stefan Bader (stefan-bader-canonical)
Status: New => In Progress
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linux-image-2.6.24-* w/ aic79xx crash under heavy I/O load
https://bugs.launchpad.net/bugs/238118
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