Messages in this thread | | | Date | Fri, 15 Dec 2006 17:19:44 -0500 | From | Jeff Garzik <> | Subject | Re: sata badness in 2.6.20-rc1? [Was: Re: md patches in -mm] |
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Alan wrote: > On Fri, 15 Dec 2006 13:39:27 -0800 > Andrew Morton <akpm@osdl.org> wrote: > >> On Fri, 15 Dec 2006 13:05:52 -0800 >> Andrew Morton <akpm@osdl.org> wrote: >> >>> Jeff, I shall send all the sata patches which I have at you one single time >>> and I shall then drop the lot. So please don't flub them. >>> >>> I'll then do a rc1-mm2 without them. >> hm, this is looking like a lot of work for not much gain. Rafael, are >> you able to do a quick chop and tell us whether these: > > The md one and the long history of reports about parallel I/O causing > problems sounds a lot more like the kmap stuff you were worried about > Andrew. I'd be very intereste dto know if it happens on x86_32 built with > a standard memory split and no highmem....
2.6.20-rc1 works, and 2.6.20-rc1 does not have the kmap_atomic() fix.
Upstream does kmap_atomic(KM_USER0) and -mm does kmap_atomic(KM_IRQ0)
Jeff
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