January 2009 - Darwin-kernel

Re:Re: How to contitnule this kind of kernel debug
by searockcliff 12 Jan '09

12 Jan '09

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Re: How to contitnule this kind of kernel debug
by William Kucharski 12 Jan '09

12 Jan '09

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Jan 12, 2009, at 2:29 AM, searockcliff wrote: Thanks, Brian Bechtel Now I get further in the kernel debug. But I find that the address 0x0 has symbol IOUSBBus::IOUSBBus. I suspect what you'll finally end up doing is collecting other kernel backtraces and using them in combination to debug your issue. William Kucharski _______________________________________________ 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.… The problem is it's virtually impossible to distinguish a jump to memory location 0 from a trashed backtrace indicating a jump to memory location 0. This email sent to site_archiver(a)lists.apple.com

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Re:Re:Re: How to contitnule this kind of kernel debug
by searockcliff 12 Jan '09

12 Jan '09

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Re:Re: How to contitnule this kind of kernel debug
by searockcliff 12 Jan '09

12 Jan '09

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Re: 10.5.6 debug kits
by gcummings＠apple.com 07 Jan '09

07 Jan '09

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Importance: Normal User-agent: SquirrelMail/1.4.15 Hi Rob, On Tue, January 6, 2009 1:43 pm, Rob Cas wrote: > I know it's probably coming, but just in case it's been forgotten, > could somebody from Apple publish the 10.5.6 Kernel Debug Kits? > > Thanks! > _______________________________________________ > 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/gcummings%40apple.com > > This email sent to gcummings(a)apple.com It has been published. It's just that the developer.apple.com/hardwaredrivers pages that point to it haven't been updated yet. For future reference, the Kernel Debug Kits have been hosted on the ADC member site connect.apple.com for some time now. They will be visible there even if the other links haven't been updated. HTH, --gc _______________________________________________ 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 contitnule this kind of kernel debug
by Brian Bechtel 07 Jan '09

07 Jan '09

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=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:cc:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references; bh=vNBkaEW99ExSv7hXrVNNgV0SZiwcUj14wanCsiMt98M=; b=LPkzbB+vugOTjgslfJEY2Xh0GHEs2HCZreqdtJiNYL1zHNPZjqonsdRjA3xaQg36wk m8FODii0BE5Us6qyf8ZBVdRKu6RL8NjXfBYRGKyjT6WsXOZheLFC0GLqOUYC+2CH4DS2 5YbvOIunkWXE+N73FZdm/7bCOp+VXVj0yiZLQ= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=Z5KT0PADHn/+Pob24nfp6NEq0itMOKBu2euSTdLeP162pbgULBjbPLA/Tdf3z8WSic BhMLJsrqZYmfieyCSdumZBzLIx4yq+XmRiNH3kl9Hc48/c3PYYu6SgmvHgH9Fy7OFmXh KYUTx/jq/vInT8UNOj2lnHIebDN7Dq0lRXeHc= On Wed, Jan 7, 2009 at 12:27 AM, searockcliff <searockcliff(a)163.com> wrote: > Hi All, > I meet one kernel panic. > When I begin to debug the kernel, I cannot get the back trace. > All the backtrace in panic log is about panic handling, except the 0x0 > instruction : > 0x85666a18 : 0x0 (0xe 0xe9660048 0xefd10010 0xd8330010) > I find one application's kernel_stack is wrong too. > task vm_map ipc_space #acts pid proc command > 0x0e58e770 0x0e5d1b40 0x0dc611cc 3 2528 0x0dfc7750 TESTAPP > thread processor pri state wait_queue wait_event > 0x0e5964f0 0x7c361000 31 R > kernel_stack=0x85664000 > stacktop=0x00000000 > stackbottom=0xfffffff0 > Could anybody give some hint about how to continue my kernel debug? > Thanks a lot! dump the memory starting at the kernel_stack address and see if you can manually decode stack frames. Something has destroyed your stack. > Mon Jan 5 16:50:55 2009 > panic(cpu 0 caller 0x001A8CEC): Kernel trap at 0x00000000, type 14=page > fault, registers: > CR0: 0x8001003b, CR2: 0x7c794000, CR3: 0x00f3b000, CR4: 0x00000660 > EAX: 0x00000000, EBX: 0x0042ec54, ECX: 0x00000000, EDX: 0x0dd09b00 > CR2: 0x00000000, EBP: 0x00000000, ESI: 0x00000144, EDI: 0xffff0000 > EFL: 0x00010212, EIP: 0x00000000, CS: 0x00000008, DS: 0x8f900010 > Error code: 0x00000010 > Backtrace (CPU 0), Frame : Return Address (4 potential args on stack) > 0x856668d8 : 0x12b0fa (0x459234 0x8566690c 0x133243 0x0) > 0x85666928 : 0x1a8cec (0x4627a0 0x0 0xe 0x461f50) > 0x85666a08 : 0x19eed5 (0x85666a20 0x75fdcf03 0x0 0x0) > 0x85666a18 : 0x0 (0xe 0xe9660048 0xefd10010 0xd8330010) > Backtrace terminated-invalid frame pointer 0 > BSD process name corresponding to current thread: SntlKeysSrvrmac > Mac OS version: > 9F33 > Kernel version: > Darwin Kernel Version 9.5.0: Wed Sep 3 11:29:43 PDT 2008; > root:xnu-1228.7.58~1/RELEASE_I386 > System model name: MacPro3,1 (Mac-F42C88C8) Something has jumped to location zero. You should dump the memory for the stack frames x/256x 0x856668d8 and manually decode the stack frame instead. Frames usually begin at 0x???????8, and the first word is a pointer to the next frame. You can also try repeatedly issuing an "x/a" command on the memory of the stack and see if any symbols match, i.e. the last known good frame is 0x85666a18, so x/a 0x85666a18 [return to repeat the command for the next address] [return to repeat the command for the next address] [return to repeat the command for the next address] [return to repeat the command for the next address] [return to repeat the command for the next address] [return to repeat the command for the next address] etc. Good luck. A trashed stack can be very tedious to diagnose. _______________________________________________ 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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How to contitnule this kind of kernel debug
by searockcliff 07 Jan '09

07 Jan '09

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10.5.6 debug kits
by Rob Cas 06 Jan '09

06 Jan '09

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=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:mime-version:content-type:content-transfer-encoding :content-disposition; bh=YQiISctxDYQ+qvnCYANEO37aIrp+PGC4n8x6c/WH/ho=; b=cOq4L/wSOMqMLTmkdvdLrxaHN1m6ycbLixcc5EbunIsfjLagfC0l47mPU0d8Lxb1qw ZVtMyTByhInFadROKTWMoXGhj+ygpKgv0Vg0L/nKg8ET0VbAQp85p7D86KQGjvs70sEp 3FgEpwaz9eejMIgJVr+eeRkgMsXvsVhYK1sJ4= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:mime-version:content-type :content-transfer-encoding:content-disposition; b=cUBpE9VEp6GSmjWPVVPNTFxPiUxzh0wURc//vtzkDTv9yBw7ONiAS0j26oyTqlvTzh /OQPFwI0KDGn7uV09ehX5jNx532tdQ4I0Zd/QABzjr02rblKZb/IiT8KzS0hXPIlQgmA LuVxV8tzFK5oIIbZRYHOczjwTDh0TuNKR8i4w= I know it's probably coming, but just in case it's been forgotten, could somebody from Apple publish the 10.5.6 Kernel Debug Kits? Thanks! _______________________________________________ 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: airport ioctls
by Terry Lambert 06 Jan '09

06 Jan '09

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Hi, -- 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 Dec 27, 2008, at 7:49 PM, Paul Bissonnette wrote: I've been picking through the apple80211_ioctl.h and apple80211_var.h files in /System/Library/Frameworks/ Kernel.framework/Headers/IOKit/apple80211/ in my free time. I haven't been able to find much in the way of documentation and the combination of generic error messages and my lack of experience has made it a bit difficult. I have gotten a few of the more basic ioctl() calls in apple80211_ioctl.h to work but I was hoping somebody could show me how to get the scanning calls to work. More specifically if someone knows how to do a directed scan asynchronously I could use some help figuring it out. What I have so far is that if you specify exactly which channel the network is on it will work but if you give it a list of possible channels or don't specify any channels it will fail (using the channels array in the apple80211_scan_data structure that gets passed to the driver when requesting APPLE80211_SCAN_REQ). I also know that /dev/ath0 is where all of the notifications are dumped for various events pertaining to the airport including APPLE80211_M_SCAN_DONE (0xA). An example of what I'm trying to do would be: `/System/Library/PrivateFrameworks/Apple80211.framework/Resources/ airport -s<networkname>` I apologize if this is the wrong list or just a stupid question, I'm new to this. I also realize that the above binary already does what I'm trying to figure out, call me curious (and apparently not very good at reverse engineering). Have you tried looking <http://code.google.com/p/iwidarwin> to see how a wifi driver handles such requests? This email sent to site_archiver(a)lists.apple.com

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