Messages in this thread | | | Date | Wed, 3 Oct 2007 10:19:38 +0200 | From | Ingo Molnar <> | Subject | Re: Linux 2.6.23-rc9 and a heads-up for the 2.6.24 series.. |
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* Mel Gorman <mel@skynet.ie> wrote:
> On (02/10/07 14:15), Ingo Molnar didst pronounce: > > > > * Mel Gorman <mel@csn.ul.ie> wrote: > > > > > Dirt. Booting with "profile=sleep,2" is broken in 2.6.23-rc9 and > > > 2.6.23-rc8 but working in 2.6.22. I was checking it out as part of a > > > discussion in another thread and noticed it broken in -mm as well > > > (2.6.23-rc8-mm2). Bisect is in progress but suggestions as to the > > > prime candidates are welcome or preferably, pointing out that I'm an > > > idiot because I missed twiddling some config change. > > > > Mel, does the patch below fix this bug for you? (Note: you will need to > > enable CONFIG_SCHEDSTATS=y too.) > > Nice one Ingo - got it first try. The problem commit was > dd41f596cda0d7d6e4a8b139ffdfabcefdd46528 and it's clear that the code > removed in this commit is put back by this latest patch. When > applied, profile=sleep works as long as CONFIG_SCHEDSTAT is set.
great - thanks for testing it. I'm glad you caught it as sleep=profile is pretty useful in "why is my system so slow" tests. (which problems are usually reported _after_ a stable kernel is released ...)
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