Scott Long wrote:
Bruce Evans wrote:
On Tue, 16 Sep 2003, Maxim Konovalov wrote:
PAE MFC brought an incredible instability to stable branch. It affects 100% of our user community especially when we issued several SAs since PAE commit. They often can't switch to RELENG_4_x security branches because even RELENG_4_8 misses several critical non-security fixes.
I merged PAE into my version of -current a bit at a time and didn't notice any problems (with PAE not actually configured) despite having some large logical inconsistencies from not having all of it. Most of the global changes had no effect since they just changed the names of some typedefs without changing the underlying types in the !PAE case. So I suspect that any instabilities in RELENG_4 in the !PAE case are indirectly related to PAE and/or localized and thus easy to find and fix.
Bruce
Agreed. PAE was merged into -stable in three steps. Backing out the third step and leaving the first two steps removes the instability. Unfortunately, it was the third step that also was the most complex. In any case, we have 2 weeks to find the resolution before the decision must be made on keeping or tossing PAE. Since PAE is a *highly* sought after feature, it would be doing a disservice to our user base to remove it without putting in some effort to fix it.
If someone who was involved in this would publish the date on which that last commit was made, people who are experiencing problems, but wish to stay as close to -STABLE as possible can use cvsup to revert their trees to a date immediately prior to the commit.
This will solve both problems for now: i.e. the problem of users wanting the bugfixes/new features of -STABLE will have a target they can cvsup to that is reliable, while the developers can continue to pursue their goal of having PAE in 4.9.
Patches have been floated on the mailing list that revert PAE in its various stages. Maybe those need to be brought back up. Silby? Tor?
Scott
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