January 2004 - Darwin-kernel

Re: IOATAController device blocking bus
by RJ Auburn 13 Jan '04

13 Jan '04

*This message was transferred with a trial version of CommuniGate(tm) Pro* On Jan 12, 2004, at 16:23, Justin Walker wrote: On Monday, January 12, 2004, at 02:04 PM, RJ Auburn wrote: *This message was transferred with a trial version of CommuniGate(tm) Pro* As anyone seen "IOATAController device blocking bus" in the system.log? I did a google on the message but can not find any references to this anyware. I started getting this error message on two different laptops after upgrading it 10.3.2. When I get these messages the hard drive is making a nasty clicking sound and all disk IO is blocked. Doing a clean install makes the problem go way for a while but it does come back after a few weeks. I don't know how my experience relates to yours, but: I have seen this several times, on a 500Mhz Firewire/USB G3 laptop, while trying to mount a CD. In each case, I fixed it expeditiously :-} by waiting until the dust settled, opening the CD tray, and closing it again. The nasty clicking sound, in my case, seemed to be CD-related. For me it's not CD related and it seems to be new with 10.3.2. It's happened on both my TiBook 667Mz (Without DVI) and a iBook G3 500. It seems that after the problem going on for a while I am unable to boot and I start getting bad disk errors and am forced to do a clean reinstall. It does not seem to be filesystem related as if I use firewire disk mode the drive is just fine and everything can be read and recovered without any issues at all. >From looking around it looks like the message is from IOATAController::handleExecIO() line 922. I may see if I can get it to recompile with the ATA debug messages enabled to see if it turns anything up. I have not had a chance to run diff's between the 10.3.2 and 10.3.1 versions yet. Has anyone else had this problem? Or is just that my laptops don't like me ;-) RJ --- RJ Auburn CTO, Voxeo Corporation tel:+1-407-418-1800 _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: IOATAController device blocking bus
by Justin Walker 13 Jan '04

13 Jan '04

On Monday, January 12, 2004, at 02:04 PM, RJ Auburn wrote: *This message was transferred with a trial version of CommuniGate(tm) Pro* As anyone seen "IOATAController device blocking bus" in the system.log? I did a google on the message but can not find any references to this anyware. I started getting this error message on two different laptops after upgrading it 10.3.2. When I get these messages the hard drive is making a nasty clicking sound and all disk IO is blocked. Doing a clean install makes the problem go way for a while but it does come back after a few weeks. I don't know how my experience relates to yours, but: I have seen this several times, on a 500Mhz Firewire/USB G3 laptop, while trying to mount a CD. In each case, I fixed it expeditiously :-} by waiting until the dust settled, opening the CD tray, and closing it again. The nasty clicking sound, in my case, seemed to be CD-related. Regards, Justin -- /~\ The ASCII Justin C. Walker, Curmudgeon-at-Large \ / Ribbon Campaign X Help cure HTML Email / \ _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: pthread_cancel problem on MAC OSX
by Jim Magee 12 Jan '04

12 Jan '04

On Jan 12, 2004, at 1:39 PM, Timothy Standing wrote: Yes, you're right: pthread_cancel() does nothing. The official word from Apple is that it will never work. You need to use another method to get your child threads to finish. Polling a global after a quanta of work in the child thread is one method. Where is it stated that pthread_cancel() will never work? As a matter of fact, it does work today. It's just that most of the defined cancellation points are currently disabled. You have to add explicit calls to pthread_testcancel() to recognize a cancellation. We do plan on addressing that issue (as far as I know, and I should know, as I have been involved in working on a solution on and off over the last year or so). The problem is all the other frameworks in Mac OS X. They are not pthread_cancel() safe [yet] - and we didn't want to enable all the defined cancellation points until we had a mechanism to make them work safely together. But we WILL be doing it at some point in the future (it's always just a matter of timing). As for Girish's example, adding an explicit call to pthread_testcancel() in the sleep loop makes it work on Darwin (and would continue to work on other systems as well). But we understand that not all programs are as simple as that test case. ;-) --Jim Tim Standing SoftRAID, LLC On Jan 5, 2004, at 10:00 PM, darwin-kernel-request(a)lists.apple.com wrote: Hi Darwin Devloper, I am doing some assignments related to thread in user space.After doing lots of R & D, I came to know that "pthread_cancel()" is not working properly.The same program is working fine on Linux. _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored. _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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IOATAController device blocking bus
by RJ Auburn 12 Jan '04

12 Jan '04

*This message was transferred with a trial version of CommuniGate(tm) Pro* As anyone seen "IOATAController device blocking bus" in the system.log? I did a google on the message but can not find any references to this anyware. I started getting this error message on two different laptops after upgrading it 10.3.2. When I get these messages the hard drive is making a nasty clicking sound and all disk IO is blocked. Doing a clean install makes the problem go way for a while but it does come back after a few weeks. Any ideas? RJ Auburn _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: pthread_cancel problem on MAC OSX
by Timothy Standing 12 Jan '04

12 Jan '04

Girish - Yes, you're right: pthread_cancel() does nothing. The official word from Apple is that it will never work. You need to use another method to get your child threads to finish. Polling a global after a quanta of work in the child thread is one method. Tim Standing SoftRAID, LLC On Jan 5, 2004, at 10:00 PM, darwin-kernel-request(a)lists.apple.com wrote: Hi Darwin Devloper, I am doing some assignments related to thread in user space.After doing lots of R & D, I came to know that "pthread_cancel()" is not working properly.The same program is working fine on Linux. _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: Using struct proc
by Justin Walker 11 Jan '04

11 Jan '04

On Saturday, January 10, 2004, at 03:08 PM, Matt Jaffa wrote: Justin, I noticed, if i did correctly, that you are the author for TCPLogger. You did and I am. I was wondering if you had a version that compiles of Panther? Nope. I haven't touched that code in dog's years... Regards, Justin -- Justin C. Walker, Curmudgeon-At-Large * Institute for General Semantics | When LuteFisk is outlawed | Only outlaws will have | LuteFisk *--------------------------------------*-------------------------------* _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: Using struct proc
by drivers 11 Jan '04

11 Jan '04

On Jan 10, 2004, at 10:21 AM, Matt Jaffa wrote: Using the Proc structure, is there a way to get the information of the app's name, including the directory it is in? Like /Applications/TextEdit.app/contents/MacOS/TextEdit ? The proc structure is private; don't depend on being able to access any of it. In addition, an application may have been launched using a relative path, so the "real" path to it may not be known at launch time (and in fact it may not have one). = Mike _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: Using struct proc
by Matt Jaffa 10 Jan '04

10 Jan '04

Justin, I noticed, if i did correctly, that you are the author for TCPLogger. I was wondering if you had a version that compiles of Panther? Thanks, Matt On Jan 10, 2004, at 2:54 PM, Justin Walker wrote: On Saturday, January 10, 2004, at 01:41 PM, Matt Jaffa wrote: I have another question though, Is there a way to view or atleast maybe know what socket filters are running on machine? 'kextstat' gives a list of currently loaded extensions, but that doesn't necessarily tell you what they are. In addition, there is a list of socket filters in the kernel (maintained by the 'register_sockfilter() call), but beyond that, there's little available information on the individual entries. Regards, Justin -- Justin C. Walker, Curmudgeon-At-Large * Institute for General Semantics | It's not whether you win or lose... | It's whether *I* win or lose. *-------------------------------------- *-------------------------------* _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored. _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: Using struct proc
by Justin Walker 10 Jan '04

10 Jan '04

On Saturday, January 10, 2004, at 01:41 PM, Matt Jaffa wrote: I have another question though, Is there a way to view or atleast maybe know what socket filters are running on machine? 'kextstat' gives a list of currently loaded extensions, but that doesn't necessarily tell you what they are. In addition, there is a list of socket filters in the kernel (maintained by the 'register_sockfilter() call), but beyond that, there's little available information on the individual entries. Regards, Justin -- Justin C. Walker, Curmudgeon-At-Large * Institute for General Semantics | It's not whether you win or lose... | It's whether *I* win or lose. *--------------------------------------*-------------------------------* _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: Using struct proc
by Matt Jaffa 10 Jan '04

10 Jan '04

Ok I figured out how to get the path of the current running apps, even those found within Classic. I have another question though, Is there a way to view or atleast maybe know what socket filters are running on machine? On Jan 10, 2004, at 11:53 AM, Justin Walker wrote: On Saturday, January 10, 2004, at 10:21 AM, Matt Jaffa wrote: Hi, Using the Proc structure, is there a way to get the information of the app's name, including the directory it is in? Like /Applications/TextEdit.app/contents/MacOS/TextEdit ? No. The proc structure contains a (possibly shortened) command name, but not the directory path. It also contains a pointer to the vnode for the executable. You could use that to work backwards to get "a" path to the executable. There really is no way to know what path was used (because of links, symbolic or hard). What are you trying to do? Regards, Justin -- Justin C. Walker, Curmudgeon-At-Large * Institute for General Semantics | Some people have a mental | horizon of radius zero, and | call it their point of view. | -- David Hilbert *-------------------------------------- *-------------------------------* _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored. _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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