Messages in this thread | | | Subject | Re: [Bugme-new] [Bug 15618] New: 2.6.18->2.6.32->2.6.33 huge regression in performance | From | Anton Starikov <> | Date | Tue, 23 Mar 2010 20:50:18 +0100 |
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On Mar 23, 2010, at 8:22 PM, Robin Holt wrote:
> On Tue, Mar 23, 2010 at 07:25:43PM +0100, Anton Starikov wrote: >> On Mar 23, 2010, at 7:21 PM, Andrew Morton wrote: >>>> I will apply this commits to 2.6.32, I afraid current OFED (which I need also) will not work on 2.6.33+. >>>> >>> >>> You should be able to simply set CONFIG_RWSEM_GENERIC_SPINLOCK=n, >>> CONFIG_RWSEM_XCHGADD_ALGORITHM=y by hand, as I mentioned earlier? >> >> Hm. I tried, but when I do "make oldconfig", then it gets rewritten, so I assume that it conflicts with some other setting from default fedora kernel config. trying to figure out which one exactly. > > Have you tracked this down yet? I just got the patches applied against > an older kernel and am running into the same issue.
I think you can prevent overwriting this options if you set them in arch/x86/configs/x86_64_defconfig
Anton
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