November 2011 - Darwin-kernel

Re: Time machine/Mobile backup exemption
by Alexander von Below 22 Nov '11

22 Nov '11

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com There is a different mechanism to prevent files from being backed-up to TimeMachine. http://developer.apple.com/library/mac/#documentation/MacOSX/Reference/Back… Alex Am 23.11.2011 um 00:17 schrieb Kevin Elliott: > No, that won't work in Lion. > > Sent from my iPhone > > On Nov 20, 2011, at 12:31, Antoine Missout <antoine.missout(a)metakine.com> wrote: > >> Although this is for iOS 5.0.1, will it work for Lion 10.7.2 ? >> http://developer.apple.com/library/ios/#qa/qa1719/_index.html >> >> Will it be obeyed by Time Machine ? >> >> Regards, >> Antoine >> >> >> >> On 2011-11-19, at 13:02, Antoine Missout wrote: >> >>> Any way to flag a file (metadata or otherwise), so that Time Machine and Mobile backup will ignore it ? >>> >>> Except creating it in /tmp ? >>> >>> Thanks, >>> Antoine >>> >>> _______________________________________________ >>> Do not post admin requests to the list. They will be ignored. >>> Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) >>> Help/Unsubscribe/Update your Subscription: >>> http://lists.apple.com/mailman/options/darwin-kernel/antoine.missout%40meta… >>> >>> This email sent to antoine.missout(a)metakine.com >> >> _______________________________________________ >> Do not post admin requests to the list. They will be ignored. >> Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) >> Help/Unsubscribe/Update your Subscription: >> http://lists.apple.com/mailman/options/darwin-kernel/kelliott%40mac.com >> >> This email sent to kelliott(a)mac.com > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/darwin-kernel/below%40mac.com > > This email sent to below(a)mac.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: Time machine/Mobile backup exemption
by Kevin Elliott 22 Nov '11

22 Nov '11

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com No, that won't work in Lion. Sent from my iPhone On Nov 20, 2011, at 12:31, Antoine Missout <antoine.missout(a)metakine.com> wrote: > Although this is for iOS 5.0.1, will it work for Lion 10.7.2 ? > http://developer.apple.com/library/ios/#qa/qa1719/_index.html > > Will it be obeyed by Time Machine ? > > Regards, > Antoine > > > > On 2011-11-19, at 13:02, Antoine Missout wrote: > >> Any way to flag a file (metadata or otherwise), so that Time Machine and Mobile backup will ignore it ? >> >> Except creating it in /tmp ? >> >> Thanks, >> Antoine >> >> _______________________________________________ >> Do not post admin requests to the list. They will be ignored. >> Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) >> Help/Unsubscribe/Update your Subscription: >> http://lists.apple.com/mailman/options/darwin-kernel/antoine.missout%40meta… >> >> This email sent to antoine.missout(a)metakine.com > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/darwin-kernel/kelliott%40mac.com > > This email sent to kelliott(a)mac.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: IOMalloc / IOFree while holding a mutex
by Christopher James Elphinstone Chandler 22 Nov '11

22 Nov '11

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On 21 Nov 2011, at 06:03, sheetal phirke wrote: > I am writing IOKit driver with Vnode & File listener. > Is it safe for me to take mutex lock while IOMalloc / IOFree? I think that would be a very bad idea. Listeners in the vnode scope are potentially on the page out path (because the pager might need to create a new swap file), which makes allocating memory in your code potentially dangerous, regardless of whether you're holding a mutex or not. Share and Enjoy -- Quinn "The Eskimo!" <http://www.apple.com/developer/> Apple Developer Relations, Developer Technical Support, Core OS/Hardware _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: IOMalloc / IOFree while holding a mutex
by Quinn "The Eskimo!" 22 Nov '11

22 Nov '11

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On 21 Nov 2011, at 06:03, sheetal phirke wrote: > I am writing IOKit driver with Vnode & File listener. > Is it safe for me to take mutex lock while IOMalloc / IOFree? I think that would be a very bad idea. Listeners in the vnode scope are potentially on the page out path (because the pager might need to create a new swap file), which makes allocating memory in your code potentially dangerous, regardless of whether you're holding a mutex or not. Share and Enjoy -- Quinn "The Eskimo!" <http://www.apple.com/developer/> Apple Developer Relations, Developer Technical Support, Core OS/Hardware _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: IOMalloc / IOFree while holding a mutex
by Michael Smith 21 Nov '11

21 Nov '11

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: IOMalloc / IOFree while holding a mutex
by sheetal phirke 21 Nov '11

21 Nov '11

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.co.in; s=s1024; t=1321855415; bh=WTZ5wImvC/WvYjPhxB6p8ZxU/Ah7RyQT0ALlJ7LnI3w=; h=X-YMail-OSG:Received:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type; b=iNjX5Fq7GmwfF4cUC1areS4ylcl2rSKgpvlosTKCQvZ7Z1TreiZvEhbInSFCtjzgX4VOPJTMl/lg/Ri2E0sgq2p5Km6YG2rrlrUOMgLD5DrjelNeTiRpVe+HN1WCcM5WEghjhr2urjszdQCxe5kBGjIo7UMLvz7EDdc0EPspNr4= Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.co.in; h=X-YMail-OSG:Received:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type; b=iIYgKVIhQNtEH8xibgfJE+WYDA3FexPsH3Y20RUqqb2XQqyRB+r3PH6GQRawSWzY3WlJFXXfVF7P5mQt82BlcYnQLvpupfzUfS92h+LE1/fC+986e7P2G+9UXNzV8IoFp/za/0tOsHT/QJlKTW2jw9InCf1Q7Yj/Xt4+kgYcpEs=; _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: Time machine/Mobile backup exemption
by Antoine Missout 20 Nov '11

20 Nov '11

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Although this is for iOS 5.0.1, will it work for Lion 10.7.2 ? http://developer.apple.com/library/ios/#qa/qa1719/_index.html Will it be obeyed by Time Machine ? Regards, Antoine On 2011-11-19, at 13:02, Antoine Missout wrote: > Any way to flag a file (metadata or otherwise), so that Time Machine and Mobile backup will ignore it ? > > Except creating it in /tmp ? > > Thanks, > Antoine > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/darwin-kernel/antoine.missout%40meta… > > This email sent to antoine.missout(a)metakine.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Time machine/Mobile backup exemption
by Antoine Missout 19 Nov '11

19 Nov '11

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Any way to flag a file (metadata or otherwise), so that Time Machine and Mobile backup will ignore it ? Except creating it in /tmp ? Thanks, Antoine _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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RE: Basic Kernel Extension Programming questions
by Hajime Inoue 18 Nov '11

18 Nov '11

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Thread-index: AcymEZdNk3KhPFbgRIKs1DDbuCgSZwAAC0/w You are making the assumption that physical memory is contiguous. This will give you an error (or crash the machine) if you insist on reading device-backed memory. This is easy to do because device-mapped regions end up between regions of actual memory. Amit Singh's blog has a dtrace macro that replicates the showbootermemorymap kernel debug macro: http://osxbook.com/blog/2009/02/25/displaying-the-physical-memory-map/ This will give you the map and the type of memory in each region. I think it's safe to read all region types except MemMapIO and MemPortIO. -Jim -----Original Message----- From: darwin-kernel-bounces+hinoue=atc-nycorp.com(a)lists.apple.com [mailto:darwin-kernel-bounces+hinoue=atc-nycorp.com@lists.apple.com] On Behalf Of Andrew Gallatin Sent: Friday, November 18, 2011 11:46 AM To: Eric Gorr Cc: darwin-kernel(a)lists.apple.com Subject: Re: Basic Kernel Extension Programming questions On 11/18/11 11:41, Eric Gorr wrote: > Thank you for the reply. > > I had considered that and tried 4096 bytes -1 page. Still panics. Very frustrating especially since I know doing this is possible ( google MacMemoryReader ). It may be a bit smarter, and try to discover what physical addresses are actually backed by memory, rather than devices, and avoid device backed memory. Drew _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/hinoue%40atc-nycorp.c om This email sent to hinoue(a)atc-nycorp.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: Basic Kernel Extension Programming questions
by Andrew Gallatin 18 Nov '11

18 Nov '11

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=simple/simple; d=cs.duke.edu; s=mail; t=1321634739; bh=k7n+Hcs2wBnFGbBb7javMDBEB2nlF4Gk0KXyBl6eRfo=; h=Message-ID:Date:From:MIME-Version:To:CC:Subject:References: In-Reply-To:Content-Type:Content-Transfer-Encoding; b=lgosDPED7sXqY9+ebdZapb2uXZPb/A6vllPgHxI+8pPIt2J0Ppq75v+2KdEXeZcxs 2Z1NoIlIVTC6obqPGhp+Ozhg5SDlK0k1QLlpdz0nyY6uYtXid+I7RBqgbPu6NkbNld 42X+2zIOzsbAvFRVDs33d+27sx+IA8Kx6rH50shBOTZSnUD0O8KloLbMZnI6vzQdPw 5QByAENizMvrHUF5H+EDr2laJVyfRdjbuWubCrRu2y4FZftEkcmkBMzZlhSYZNTfHt zc8rEhYQwBD/SEFibZ6n+ShWdwEiAY/rcMnev+H8smipYLhhjDbE83EIvP7tOzp90m DauWf1X6g7Ydw== User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:7.0.1) Gecko/20110929 Thunderbird/7.0.1 Thank you for the reply. It may be a bit smarter, and try to discover what physical addresses are actually backed by memory, rather than devices, and avoid device backed memory. Drew _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… On 11/18/11 11:41, Eric Gorr wrote: I had considered that and tried 4096 bytes -1 page. Still panics. Very frustrating especially since I know doing this is possible ( google MacMemoryReader ). This email sent to site_archiver(a)lists.apple.com

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