January 2005 - Darwin-kernel

Re: Consistent kernel panic on volume mount
by Carsten G Pedersen 19 Jan '05

19 Jan '05

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 William Kucharski <kucharsk(a)mac.com> wrote on 01/19/2005 05:23:07 PM: > On Jan 19, 2005, at 2:20 AM, Carsten G Pedersen wrote: > > The bigger issue is that there are all kinds of file system errors that > will cause the kernel to panic, and many of them are only fixable by > AlSoft's DiskWarrior, if at all. > Well it's certainly thought provoking that vfs_journal.c, which seems to be the culprit for me, contains nearly 60 panic calls.Surely some of these could and should be substituted by more sophisticated ways of bailing out. Also studying the exact lines of code that triggers my panic makes you wonder a bit: Getting the message "overlap of 0 is not multiple of 24" from this code doesn't really make sense - my best guess is that the 64bit integer overlap can't be correctly displayed by %d, does anybody know whether that might be so? And yes Felix - I will take your advice and file a bug - just want to gather some more information first. I'm seriously considering building a version of the kernel that stays away from journaling altogether - of course if someone else know about an easier way to avoid this code being called I'd be most interested to hear about it. Carsten

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Re: Consistent kernel panic on volume mount
by Markus Hitter 19 Jan '05

19 Jan '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Am 19.01.2005 um 17:23 schrieb William Kucharski: Surely you have to play around a little bit. Markus - - - - - - - - - - - - - - - - - - - Dipl. Ing. Markus Hitter http://www.jump-ing.de/ _______________________________________________ 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.… as as soon as (as you well know) MacOS X sees the device it will try to mount it and will fall over (sigh...) Unless you turn off autodiskmounting. Unsure how to do it right now. Just "kill -9 diskarbitrationd"? Boot into single user mode? Then you can use "mount" to do a BSD-level only mount, "hdid -nomount" to get it automounted but without Finder notification, or "hdituil" to simulate popping it in again. Perhaps you have even a chance to do a "dd if=/dev/disk3 of=some_other_file_name" to get the disk backed up somewhere in case you don't manage it to use Apple Software Restore to do a copy. Having a copy will help Apple engineers a lot to construct a reproducible test case. This email sent to site_archiver(a)lists.apple.com

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Re: Consistent kernel panic on volume mount
by Felix Kronlage 19 Jan '05

19 Jan '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Jan 19, 2005, at 17:23, William Kucharski wrote: - -fkr - -- 076E 1E87 3E05 1C7F B1A0 8A48 0D31 9BD3 D9AC 74D0 http://fkr.hazardous.org/ | http://opendarwin.org/~fkr/ | FKR-RIPE -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (Darwin) iD8DBQFB7rTLDTGb09msdNARAjzkAJ9NwYk9qrzETZlDWawud1+7DvGCRwCeLSHm wiVg5zHE1Ia1qhWnTXXiGcc= =N1aJ -----END PGP SIGNATURE----- _______________________________________________ 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 bigger issue is that there are all kinds of file system errors that will cause the kernel to panic, and many of them are only fixable by AlSoft's DiskWarrior, if at all. thats an interesting statement. I'd actually like to see you povide a reproducable test case or some stronger proof, since such statement is easily made without it. I'm not that long os x user/darwin user, but in the 2 1/2 years I've been using and developing on it I've had not the case of a messed up filesystem nor ever needed DiskWarrior. This email sent to site_archiver(a)lists.apple.com

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Re: Consistent kernel panic on volume mount
by William Kucharski 19 Jan '05

19 Jan '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Jan 19, 2005, at 2:20 AM, Carsten G Pedersen wrote: William Kucharski kucharsk(a)mac.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.… I've run into quite a scary issue. Some defect RAM has managed to mess up my internal SATA drive - and yes I know this happens all the time and nothing special about that! Well the thing is that not only does this lead to a kernel panic when booting on the drive - it seems that whenever this drive is mounted on any Mac running 10.3.x it leads to an instant kernel panic similar to this one: The bigger issue is that there are all kinds of file system errors that will cause the kernel to panic, and many of them are only fixable by AlSoft's DiskWarrior, if at all. I won't go into soapbox mode here, other than to say Apple really needs to embark on a project of updating fsck; most other vendors have their versions fix as many problems as they can conceive of and when they trip over a new one update fsck to be able to fix that problem as well. Apple, unfortunately, seems content to leave file system repair to third parties. In the mean time, the only thing you're probably going to be able to do is reformat the drive from another OS, as as soon as (as you well know) MacOS X sees the device it will try to mount it and will fall over (sigh...) This email sent to site_archiver(a)lists.apple.com

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Re: Consistent kernel panic on volume mount
by Felix Kronlage 19 Jan '05

19 Jan '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Jan 19, 2005, at 10:20, Carsten G Pedersen wrote: [...] - -fkr - -- 076E 1E87 3E05 1C7F B1A0 8A48 0D31 9BD3 D9AC 74D0 http://fkr.hazardous.org/ | http://opendarwin.org/~fkr/ | FKR-RIPE -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (Darwin) iD8DBQFB7m34DTGb09msdNARAgD7AJ9vAtyQpfmX6QtAEXAeXIPzMAUnyACeP0FI VBJKGR9oaQG9d+H0+dNCw2Q= =yQQm -----END PGP SIGNATURE----- _______________________________________________ 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've run into quite a scary issue. Some defect RAM has managed to mess up my internal SATA drive - and yes I know this happens all the time and nothing special about that! Well the thing is that not only does this lead to a kernel panic when booting on the drive - it seems that whenever this drive is mounted on any Mac running 10.3.x it leads to an instant kernel panic similar to this one: [...] panic(cpu 0): jnl: do_overlap: overlap of 0 is not multiple of 24 I can't really say anything about the panic that is caused, but I'd like to advise you (if you haven't done this already) to file this with bugreporter.apple.com. This email sent to site_archiver(a)lists.apple.com

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Consistent kernel panic on volume mount
by Carsten G Pedersen 19 Jan '05

19 Jan '05

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: Documentation for frame header somewhere?
by Stephane Sudre 18 Jan '05

18 Jan '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On mardi, janvier 18, 2005, at 07:57 PM, Justin Walker wrote: On Jan 18, 2005, at 10:37, Stephane Sudre wrote: 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.… When you're coding a DLIL filter you can be provided with a frame header (input method). Is there any documentation available on this frame header thing somewhere? That would depend on what kind of device you are dealing with. The frame header is defined by the device, not the system. You can look at the dlil code available in the xnu tree to see how the code treats the ethernet case. This email sent to site_archiver(a)lists.apple.com

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Re: Documentation for frame header somewhere?
by Justin Walker 18 Jan '05

18 Jan '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Jan 18, 2005, at 10:37, Stephane Sudre wrote: Regards, Justin -- Justin C. Walker, Curmudgeon-At-Large * Institute for General Semantics | When LuteFisk is outlawed | Only outlaws will have | LuteFisk *--------------------------------------*-------------------------------* _______________________________________________ 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.… When you're coding a DLIL filter you can be provided with a frame header (input method). Is there any documentation available on this frame header thing somewhere? That would depend on what kind of device you are dealing with. The frame header is defined by the device, not the system. You can look at the dlil code available in the xnu tree to see how the code treats the ethernet case. This email sent to site_archiver(a)lists.apple.com

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Documentation for frame header somewhere?
by Stephane Sudre 18 Jan '05

18 Jan '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Any link? _______________________________________________ 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.… When you're coding a DLIL filter you can be provided with a frame header (input method). Is there any documentation available on this frame header thing somewhere? I had a look at the old NKE.pdf document. No success. I had a look at the NKE Documentation on Apple's ADC site. No success. I had a look at the BSD 4.4 Implementation book. No success. I had a look at a book I have on networking but it does not go enough low (it's a TCP/IP book mainly). This email sent to site_archiver(a)lists.apple.com

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Re: Etherspoofing patch
by Amanda Walker 18 Jan '05

18 Jan '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Hi there, Does anybody can tell me why is it that after applying the Jeff Nathan patch (BIOCSHDRCMPLT-10.3.3.patch) that it meant to allow me to spoof the mac address of all ether devices I can't change the mac address of my airport extreme? Compilation, patch application and booting the new kernel went all fine. Amanda Walker _______________________________________________ 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 Jan 17, 2005, at 1:46 PM, Yoel UK wrote: Any thoughts? The Airport Extreme isn't an Ethernet device. The "AirPortPCI" driver may not support spoofing the MAC address. This email sent to site_archiver(a)lists.apple.com

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