March 2009 - Darwin-dev - lists.apple.com

Re: Launchctl question
by Shawn Erickson 30 Mar '09

30 Mar '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=UOcAjQV7K3WZvXtjObzPWx71H2tTFo3wMGKpvfTzfI4=; b=nX7tqVgoERlzv0q39HBcZGjTdl3FF9fVlNEEku2mluIXdhAgHqPvWru1CYRyu1yXv5 ytdkA1oQJ8ScBwRQbhHBVjZzHJzrpjX8nrwsnuxKKN59Y6VnxZugmo4DAtHaCWNvjX71 i3cLE0xQAW5qu0Zmrw9HPZkCoIj9dcu15t1gs= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=MHpT/SLaMU6XNJiK5kf8WTsNB2SXJOfctg2E2f96MY4CH98SC5FRyY4OAdP+65PF9k mx2P4NrhiB6BLXyhEbXvbZux90w2iGIGpDVCGATnlFOyK1tZFelKTm93JVirQQA45YOc 0gJTrerbnKcBj1KxRHAg5+xNX8tqQIEQwQAUY= On Mon, Mar 30, 2009 at 1:32 PM, Tim Murison <tim.murison(a)radialpoint.com> wrote: > Hi, > > I'm trying to restart my launch agent running as a user from a script > running as root. > > I tried the obvious: > sudo -u my_user launchctl load /Library/LaunchAgents/myproduct.plist > > and I get "Socket is not connected." > > I've googled around a bit and found many people with the same problem, but > no solutions. Does anyone here know a way around this? Consider using the bsexec option of launchctl. http://developer.apple.com/DOCUMENTATION/DARWIN/Reference/ManPages/man1/lau… -Shawn _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

1 0

Launchctl question
by Tim Murison 30 Mar '09

30 Mar '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Thread-index: AcmxdrW7Z7PjwEEqEki8ehk2LS0n+g== Thread-topic: Launchctl question User-agent: Microsoft-Entourage/12.15.0.081119 Hi, I'm trying to restart my launch agent running as a user from a script running as root. I tried the obvious: sudo -u my_user launchctl load /Library/LaunchAgents/myproduct.plist and I get "Socket is not connected." I've googled around a bit and found many people with the same problem, but no solutions. Does anyone here know a way around this? Thanks in advance, -Tim *********************************************************************** This e-mail and its attachments are confidential, legally privileged, may be subject to copyright and sent solely for the attention of the addressee(s). Any unauthorized use or disclosure is prohibited. Statements and opinions expressed in this e-mail may not represent those of Radialpoint. Le contenu de ce courriel est confidentiel, privilégié et peut être soumis à des droits d'auteur. Il est envoyé à l'intention exclusive de son ou de ses destinataires. Il est interdit de l'utiliser ou de le divulguer sans autorisation. Les opinions exprimées dans le présent courriel peuvent diverger de celles de Radialpoint. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

1 0

Re: How to find the architecture for a mach-o file?
by Karan, Cem (Civ, ARL/CISD) 30 Mar '09

30 Mar '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Thread-index: AcmvDc8mCUkjfPNVQ9u2Ho/jEX7oOQCKaQaA Thread-topic: How to find the architecture for a mach-o file? On Thu, 26 Mar 2009 14:18:55 -0700, Eli Bach wrote: > On Mar 26, 2009, at 1:41 PM, Karan, Cem (Civ, ARL/CISD) wrote: > > > OK, so somewhere in the mess of installing various bits, I > messed up > > my libexpat. Rebuilding from scratch isn't working, so how do I > > reinstall it? Can I pull it off the Leopard DVD, or is it a Darwin > > project somewhere that I can download? > > > > Thanks, > > Cem Karan > > I would suggest Pacifist & pulling it off the leopard DVD, Thanks, that worked! Thanks to everyone that helped me figure out what went wrong and how to fix it. Thanks, Cem Karan _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

1 0

sysctl -w net.inet6.ip6.redirect=1 & 10.4 issues?
by Andre-John Mas 29 Mar '09

29 Mar '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hi, sysctl -w net.inet6.ip6.redirect=1 André-John _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… I have an old PowerMac G4, running MacOS 10.4.11 and have set it up as IPv6 gateway to sixxs.net. A few months ago the system would become non-responsive to network access, whether via IPv4 or IPv6. Disabling the script I used to enable to the gateway resolved the issue, but I didn't have time to identify the cause. Now I have investigated further and found that running the following command causes network loss and inability to browse the primary drive (second internal drive and external Firewire drive is not affected): The issue happens even if run the command by itself, not launching aiccu. Trying to launch any applications become impossible at this point. They just bounce for ever. Has anyone seen this or is able to explain what is going on? Without it the machine can't act as a gateway for IPv6 connectivity. This email sent to site_archiver(a)lists.apple.com

1 0

Re: exception not caught? (aborting)
by Ethan Tira-Thompson 29 Mar '09

29 Mar '09

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

1 0

Re: exception not caught? (aborting)
by Avi Drissman 29 Mar '09

29 Mar '09

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

1 0

Re: exception not caught? (aborting)
by Ethan Tira-Thompson 29 Mar '09

29 Mar '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Thanks, -Ethan _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… Nevermind... I have discovered if you throw an exception from a destructor during a stack unwind from another exception, this immediately triggers a std::terminate. Such as in my case, a mutex being unlocked during the unwind also checked for thread cancellation and reposted the thread cancelation exception, causing the sudden terminate. For reference in future search results, it seems if you see these in the stack trace: #7 0x9060f5ee in _Unwind_Backtrace () #8 0x9060f794 in _Unwind_RaiseException () ...then that suggests it's a destructor re-throw. (I wouldn't know if there are other times these also show up, but in my testing that's the only time I see it) FWIW, it sure would be nice if pthread_cancel did a C++ destructor aware stack unwind on darwin like it does on linux so I wouldn't have to do this exception stuff manually to reimplement it... just say'n ;) This email sent to site_archiver(a)lists.apple.com

1 0

Re: starting daemons in the startup context
by Bill Janssen 27 Mar '09

27 Mar '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Eli Bach <ebach2(a)gmail.com> wrote: > First, if you can require 10.5, have you looked at launchagents (which > only launch when a user logs in, and run as the logged in user vs > launchdaemons, which launch typically at startup, and aren't linked to > logged in users). It's my understanding that these execute in the > user's context, and not the bootstrap context. Yes, I know a lot about launchd and launchctl and launchagents, but this daemon needs to run even when the user isn't logged in. I'm looking for some alternative to StartupItemContext that a normal user can run. Alternatively, I'd like to find some way for a user bootstrap context to not timeout after a few hours. This happens even if the user is still logged in to the console, but is inactive for a while (say, overnight). I've been thinking about trying to make my daemon compatible with launchd, but it's a task. But then I could use the SessionCreate property... Bill _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

1 0

Re: starting daemons in the startup context
by Eli Bach 27 Mar '09

27 Mar '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:from:to :in-reply-to:content-type:content-transfer-encoding:subject :mime-version:date:references:x-mailer; bh=oSusSOYUIH0dUgS1gWEd4Nz4SJmNtmQXjLh5B3S/wQg=; b=DDlVYUMg6RpuDuZ+mQj5xrSuJxjVPJGYehe7wefRJFEnY4ZzEoXbczkyoj0Rr+/1qF FZjVqbAtAkulxanK8xoKhFN7GWxwdcA8531bv5HlIT3CpPQUV1MnJ7HoNe3oUoOQbXMU oweir8mm0/RAk1FGFKxHv35vmunEKjGjy+3mA= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:from:to:in-reply-to:content-type :content-transfer-encoding:subject:mime-version:date:references :x-mailer; b=eCwBoN8oFAxhUurarKd6T8uRp8pun7duYtnNJPYInGeyJ5/rRDjaG09QO904DEdfnw 3Z9pq7pj7x6/lU3woes4J3TmhGodXFlSGJbb7LfB2cUoAukVXnle+axIm3BKrSHB9IjK 4f9qXxYWy1p4xbAazOqUUDz1xfmmCZYVU3p9c= On Mar 27, 2009, at 12:24 PM, Bill Janssen wrote: I'm writing a user-level daemon that periodically, in response to RPC calls, runs other apps. By user-level, I mean that it runs as a particular user, typically not an admin user. I need to be able to let the user restart the daemon, too. I'm running into problems with this setup, typically because the apps run by the daemon start crashing after six hours or so of operation, typically like this: FAILED TO GET ASN FROM CORESERVICES so aborting. I also see gethostbyname() failures, etc., presumably because the app can't connect to lookupd. % sudo launchctl bslist 7942 bootstrap_info(): 268435459 % which is a very odd result. Presumably the standard API doesn't exist yet, or that page would have been updated. So what are some of the 'number of ways'? Preferably something that doesn't require the user to be an admin or sudoer. Bill, For 10.4 support, there is 'loginhook'... Eli _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… I think this is all because the daemon is running in a 'login' bootstrap context, instead of the 'startup' bootstrap context, and this context has somehow 'decayed'. For instance, when I run I see that in http://developer.apple.com/DOCUMENTATION/DARWIN/Conceptual/KernelProgrammin… , there's a paragraph saying, ``There are a number of ways to force a program to start in the startup context without rebooting or using ssh. However, these are not robust solutions, and are not recommended. A standard API for starting daemons is under consideration. When an official API becomes available, this chapter will be updated to discuss it.'' Bill First, if you can require 10.5, have you looked at launchagents (which only launch when a user logs in, and run as the logged in user vs launchdaemons, which launch typically at startup, and aren't linked to logged in users). It's my understanding that these execute in the user's context, and not the bootstrap context. I haven't specific experience with it, but if they are run as the logged in user, the user should be able to start/stop it (for themselves) without having to provide admin authority. And the web page you mention doesn't seem to have been updated with info about launchd/launchctl, which should also provide you with valuable information. This email sent to site_archiver(a)lists.apple.com

1 0

starting daemons in the startup context
by Bill Janssen 27 Mar '09

27 Mar '09

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com I'm writing a user-level daemon that periodically, in response to RPC calls, runs other apps. By user-level, I mean that it runs as a particular user, typically not an admin user. I need to be able to let the user restart the daemon, too. I'm running into problems with this setup, typically because the apps run by the daemon start crashing after six hours or so of operation, typically like this: FAILED TO GET ASN FROM CORESERVICES so aborting. I also see gethostbyname() failures, etc., presumably because the app can't connect to lookupd. I think this is all because the daemon is running in a 'login' bootstrap context, instead of the 'startup' bootstrap context, and this context has somehow 'decayed'. For instance, when I run % sudo launchctl bslist 7942 bootstrap_info(): 268435459 % which is a very odd result. I see that in http://developer.apple.com/DOCUMENTATION/DARWIN/Conceptual/KernelProgrammin…, there's a paragraph saying, ``There are a number of ways to force a program to start in the startup context without rebooting or using ssh. However, these are not robust solutions, and are not recommended. A standard API for starting daemons is under consideration. When an official API becomes available, this chapter will be updated to discuss it.'' Presumably the standard API doesn't exist yet, or that page would have been updated. So what are some of the 'number of ways'? Preferably something that doesn't require the user to be an admin or sudoer. Bill _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

1 0