Re: O-A loan

2011-12-04 Thread Chuck Silvers
On Mon, Nov 28, 2011 at 03:45:53AM +, YAMAMOTO Takashi wrote: hi, On Sun, Nov 20, 2011 at 06:52:10PM +, YAMAMOTO Takashi wrote: hi, i'd like to to either fix or remove O-A page loaning. the biggest problem is the lack of users. thus no way to test. any ideas? some

Re: O-A loan

2011-12-04 Thread Chuck Silvers
On Tue, Nov 29, 2011 at 06:38:27AM +, YAMAMOTO Takashi wrote: O-A loaned pages installed on the user address space would have a different owner than the usual map-entry.uvm_obj. although it was not a problem when you wrote this patch, at least some non-mechanical changes would be required

Re: O-A loan

2011-12-04 Thread Thor Lancelot Simon
On Sun, Dec 04, 2011 at 06:04:59AM -0800, Chuck Silvers wrote: to also lock the vnode. if the range of the loan is smaller than the range of the entry, we could split the entry. do you think that would work? Won't the range of the loan almost always be smaller than the range of the entry?

Re: O-A loan

2011-12-04 Thread YAMAMOTO Takashi
hi, On Mon, Nov 28, 2011 at 03:45:53AM +, YAMAMOTO Takashi wrote: hi, On Sun, Nov 20, 2011 at 06:52:10PM +, YAMAMOTO Takashi wrote: hi, i'd like to to either fix or remove O-A page loaning. the biggest problem is the lack of users. thus no way to test. any ideas?

Re: O-A loan

2011-12-04 Thread YAMAMOTO Takashi
hi, On Tue, Nov 29, 2011 at 06:38:27AM +, YAMAMOTO Takashi wrote: O-A loaned pages installed on the user address space would have a different owner than the usual map-entry.uvm_obj. although it was not a problem when you wrote this patch, at least some non-mechanical changes would be

Re: secmodel_register(9) API

2011-12-04 Thread YAMAMOTO Takashi
hi, On Tue, 29 Nov 2011 11:13:01 + (UTC), y...@mwd.biglobe.ne.jp wrote: Reviews before merge welcome. If nobody raises his voice, I'll proceed to commit it at the end of the week. i hesitate to complicate kauth related locking rules, given that it's already broken. have you checked

Re: emap

2011-12-04 Thread YAMAMOTO Takashi
hi, Thor Lancelot Simon t...@panix.com writes: On Fri, Nov 25, 2011 at 12:50:58PM +0400, Aleksej Saushev wrote: Mindaugas Rasiukevicius rm...@netbsd.org writes: y...@mwd.biglobe.ne.jp (YAMAMOTO Takashi) wrote: hi, what's the status of emap and pipe? ... and encourage our

Re: emap

2011-12-04 Thread YAMAMOTO Takashi
hi, On Fri, 25 Nov 2011 23:25:24 +0400 Aleksej Saushev a...@inbox.ru wrote: Thor Lancelot Simon t...@panix.com writes: On Fri, Nov 25, 2011 at 12:50:58PM +0400, Aleksej Saushev wrote: Mindaugas Rasiukevicius rm...@netbsd.org writes: y...@mwd.biglobe.ne.jp (YAMAMOTO Takashi)

Re: emap

2011-12-04 Thread Matthew Mondor
On Mon, 5 Dec 2011 04:19:13 + (UTC) y...@mwd.biglobe.ne.jp (YAMAMOTO Takashi) wrote: Although I didn't think it'd be necessary to say so until this point, I admit that I myself didn't really understand what Takashi said about recommending amd64 over i386. If the hardware is 32-bit, or