October 2007 - Darwin-kernel

Dump panic log after boot
by Jonas Maebe 03 Oct '07

03 Oct '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Hello, I started crashreporterd after booting using Jonas _______________________________________________ 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 have crashreporterd disabled on my machine, because I regularly run (test) programs which trigger hardware exceptions but catch them and deal with them via Unix signals (and crashreporterd nevertheless insists on dumping crash logs in such situations because it can't know those exceptions are caught at the BSD level, which is pretty annoying even if it's set not to display dialog boxes). However, I just got a kernel panic and after booting /Library/Logs/ panic.log was not updated. This is expected I assume, since crashreporterd is also responsible for dumping panic logs. sudo /usr/libexec/StartupItemContext /System/Library/StartupItems/ CrashReporter/CrashReporter start but that still did not create a panic log. Is there a way to still recover the panic log from nvram (it's on a G5 running 10.5.10)? This email sent to site_archiver(a)lists.apple.com

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Re: volumeIsBootVolume
by Alexander Obuschenko 02 Oct '07

02 Oct '07

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: Disk Arbitration timeout
by Dan Markarian 02 Oct '07

02 Oct '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Hey Wendel, Dan On 1 Oct 2007, at 5:58 PM, Wendel Maritime wrote: Disk Arbitration's disk mount approval callback seems to have a 15 second timeout. There is apparently no exposed way to set this to no timeout, that I can see. Does anyone know of a supported way to do this? _______________________________________________ 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/markarian%40apple.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.… You cannot hold up a mount approval indefinitely. You have to deny it and resubmit it later. This email sent to markarian(a)apple.com This email sent to site_archiver(a)lists.apple.com

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volumeIsBootVolume
by Alexander Obuschenko 02 Oct '07

02 Oct '07

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 wake up a process by pid?
by Terry Lambert 01 Oct '07

01 Oct '07

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Hi all, I’m facing problem synchronizing threads in my kext. -- Terry _______________________________________________ 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 Sep 29, 2007, at 10:50 AM, Vishal Shetye wrote I have a thread ‘A’ waiting on an event, I’m using assert_wait() and thread_block() for the purpose. What other thread ‘B’ has is pid of ‘A’. B should wake A and then A should continue normally. I tried doing something like, use pfind() or proc_findref() to get proc_t and then use psignal with SIGCONT, For some reason this doesn’t seem to work. I’m using x86 intel based mac pro, with osx10.4. is there something I’m missing or is it something specific to intel based macs You are missing something. Unless you specify THREAD_ABORTSAFE instead of THREAD_UNINT, signals will not get delivered nor will they wake up the thread block. Also, you should probably not be using signals; if you are going to go to the trouble of using Mach primitives instead of sleep()/msleep() (the BSD layer mechanisms for blocking synchronization), then you should do this by task, not by process. Alternately, you could use sleep()/msleep() instead, and use signals (be sure you OR PCATCH int pri). Note that going this route, msleep() is the preferred API; sleep() is in the unsupported symbol set. This email sent to site_archiver(a)lists.apple.com

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Disk Arbitration timeout
by Wendel Maritime 01 Oct '07

01 Oct '07

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=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; bh=evWjFWUOi6z17cdgwRhSRmZFbxst07h5BxiYLJBMivc=; b=Z3hPzIToZQxynGu8jntrjwT8AZCLEDNzPRaverBkwnRqgS0IpnJ9ypKQUQSWH+5Q4KkZPFpn7QhvxOxGgtN4oY3rZRKSI3IdaWuBQiE/xyNszsSVRw8m79fB4Crc36NT/weJpwh1HXG/HX7MQo5WLhGk9cx5i4D5FnASdx0v9Xw= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=TdTjeV0DbksFzrhpZSdFaBTDBvDiYWokdFdmMgdwpRgptsUiW5cPzsd1a0+4bQmBJzCGIdZeNOzVLyWXFi0rvJRqV8xbVsZ2BGO9Tk3Mdhh9UKqCVwbSuhlj5dJTjqwvj7I/H1Mxq7lcUVbzMpnIaac7Zf5HDqV/+pTlDPrLtZg= Disk Arbitration's disk mount approval callback seems to have a 15 second timeout. There is apparently no exposed way to set this to no timeout, that I can see. Does anyone know of a supported way to do this? _______________________________________________ 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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