Messages in this thread | | | From | "Pallipadi, Venkatesh" <> | Date | Fri, 12 Sep 2008 17:26:47 -0700 | Subject | RE: AGP PAT issue. |
| |
>-----Original Message----- >From: Rene Herman [mailto:rene.herman@keyaccess.nl] >Sent: Thursday, September 11, 2008 1:31 AM >To: Ingo Molnar >Cc: Pallipadi, Venkatesh; Dave Airlie; Li, Shaohua; Yinghai >Lu; Andreas Herrmann; Arjan van de Ven; Linux Kernel; Siddha, >Suresh B; Thomas Gleixner; H. Peter Anvin; Dave Jones >Subject: Re: AGP PAT issue. > >On 11-09-08 10:17, Ingo Molnar wrote: > >> * Rene Herman <rene.herman@keyaccess.nl> wrote: >> >>> On 22-08-08 22:02, Rene Herman wrote: >>> >>>> On 22-08-08 06:15, Ingo Molnar wrote: >>>>> The frontside cache itself is in x86/urgent: >>>>> >>>>> # 80c5e73: x86: fix Xorg startup/shutdown slowdown with PAT >>>>> >>>>> ... and should at least solve the symptom that you've hit >in practice >>>>> (the slowdown), without changing the underlying PAT >machinery. (which >>>>> would be way too dangerous for v2.6.27) >>>> Well, please note that that specific commit only fixes X >startup -- it >>>> doesn't do anything for shutdown. With only that one, I'm >still at 14 >>>> seconds for X shutdown (first time after boot that is, 5 seconds >>>> subsequent shutdowns) versus 1 (or sub 1, feels immediate) >normally. >>>> >>>> It's also a black-screen "hang", so we'll probably be >getting a lot of >>>> "long hang at shutdown" reports without something >additionally for .27. >>>> >>>> Venki? >>> Haven't been subcribed to any lists recently and someone was talking >>> about "the other thread" before but just noticed that an >-rc6 was cut. >>> >>> Please note that the shutdown issue remains unfixed in it (I'm doing >>> my coalescing changes locally). >> >> here's what is pending in tip/x86/pat for v2.6.28: > >Only talking about .27 and just making sure again the issue is known. > >The above mentioned subject for the entry cache one ("fix Xorg >startup/shutdown slowdown with PAT") after all mistakingly says it does >something for shutdown. >
Can you try the patch here http://www.ussg.iu.edu/hypermail/linux/kernel/0809.1/2074.html
That should resolve both reserve and free issues..
Thanks, Venki
| |