September 2006 - Darwin-kernel

Non-Apple compiled kernels and CHUD/Shark
by Rob Deker 06 Sep '06

06 Sep '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Hi folks, "ERROR CHUD trace facility currently owned by another process: "PID #-1" (PID -1). [CHUDDataSource]" Any guidance would be greatly appreciated. -d _______________________________________________ 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.… I'm wondering if anybody here could provide any insight as to my Shark seems to only work with stock Apple-compiled kernels (10.4.7 in particular). When attempting to use Shark with a stock 10.4.7 PPC kernel I've built from Apple sources, Shark says: whenever I try to start a capture. I also get an identical error with our SEDarwin kernels. This email sent to site_archiver(a)lists.apple.com

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Send data from kernel to userspace with KEXT control ?
by NAHieu 06 Sep '06

06 Sep '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=m56rxugjIqrWTX2kMRAugQdquxBCEnuJ/HRdLtJmuxZ9A11lzXwte2odPiRMD6TS44B63S3aDUbXfSJEVis/MpuKEokE/DLp8YXQVIi6zHnOpx9scADWNuOWFI/oMHnkk7wmJGOnHb53wBCOIRnk6acC7UkAMKqKgI2d9WttIZo= Hi, I have a kext that has some data to send out to userspace. After some time of investigations (great thanks to developers on this ML), I think it is a good idea to employ network stack for this job. To do that, I register a kernel control (ctl_register() function) in kernel, and have an application in userspace. The application will periodically send request for data to kernel. Inside kernel, I have a buffer, and it is necessary to send all the data from the buffer out to the userspace application. However, from the guide "Network kernel extensions programming guide", we read : " ..... the user process can communicate with the control using getsockopt, setsockopt, recv, and send on the socket. With the exception of recv (which is transparently handled with a queue), calls in user space to these functions result in a kernel-space call to the equivalent functions in the control, ctl_getopt_func, ctl_setopt_func, and ctl_send, respectively. ........" So it is not clear how we can handle receive function (recv) from inside kernel? I understand that to send data out (when client requests with recv()), I must handle the buffer for recv(), but I dont know how to do that. Too bad the documentation is quite ambiguity to me. Would anybody help me? Many thanks, H _______________________________________________ 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: Get notified when a USB storage device connected?
by NAHieu 06 Sep '06

06 Sep '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=SGsVsmNgpDpIiQUyssX18IlA8rqio7SGKxMWAYK7DqmE4I6xogMsFDZEj6NM4PUI7TBHZZmDHtpYzHvWYJl8/vNz4Tdb3chdI5Kdj+LimgprskQfR/lND1EzSezcY+HQ+oxMxpu6KqT8pfY16R5pMxF1/5fyg5bMblDKvTP65eI= Hi Jason, In the document "Accessing Hardware from Applications" there is a section on how to get notified when a device arrives or departs: http://developer.apple.com/documentation/DeviceDrivers/Conceptual/Accessing… Thank you a lot for this pointer. Anyway, is it possible to get notified from inside kernel? I have 2 choices: get notified to application, or to kernel. Kernel notified would be better for me. If it is impossible, I will go to the other way. Many thanks. H _______________________________________________ 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 9/6/06, Jason Seng <jseng(a)apple.com> wrote: This email sent to site_archiver(a)lists.apple.com

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Re: Get notified when a USB storage device connected?
by Jason Seng 05 Sep '06

05 Sep '06

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: How to create virtual COM port
by Pavan Chebbi 05 Sep '06

05 Sep '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Reply-To:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type; b=W4dEDVlR2wqeqXtA1Ny2HOtphuJILyMOmDnLB0uz6JMlL1SfezY09VQBkCmIF55db7MK/2/dv+j/KJFzqHySqKi5waD2957pH67Rg26P7sP5JpVZqiWarxWyvoE8RHvyI/lvoR9jJ3fIkdwA0MyPogouYaI25umRJh/4oNv9IyA= ; _______________________________________________ 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: stdout and stderr console output?
by Jeffrey Ellis 02 Sep '06

02 Sep '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Thread-index: AcbOxnIdsMnrcDq5EdunpAANk0QgEg== Thread-topic: stdout and stderr console output? User-agent: Microsoft-Entourage/11.2.5.060620 _______________________________________________ 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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Get notified when a USB storage device connected?
by NAHieu 02 Sep '06

02 Sep '06

site_archiver(a)lists.apple.com Delivered-To: Darwin-kernel(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=EIMkLu+zMVAmNHYAWLlsky+CAEA+xse1e7onNqrjgbqBUB3F5N9FsSFdcvgOOQNdEcTZPzonjQZTrJrUBJ2kcIMq7706M2hBm9YzjmNxTrjhdCKEqwupIX87MOzgYjMBmNI1XuljBTZV8ZV7p9GdxB4aqPy9KwGhV1LIRlS9v1w= Hello, I am working on a project to monitor external USB storage device, so it is necessary to know when there is a new storage device connected. Is it imperative to do that in kernel space, or it is possible to do that from userspace? I am quite struggling here. Any pointer is hightly appreciated. Many thanks, H _______________________________________________ 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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