August 2005 - Darwin-kernel

Re: tty driver
by Terry Lambert 25 Aug '05

25 Aug '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Something is undoing the stty. You're not using zsh, are you? -- 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 Aug 25, 2005, at 10:44 AM, Roger deBry wrote: I have a G4 powerbook and I have been trying to turn off echo mode using the stty command. For some reason it doesn't work. The command works just fine on my i-mac and it works using secure shell to my X server. What could be wrong on my powerbook? Other than that, try opening another window and ktrace'ing ("ktrace - id") the program that's fork'ing and exec'ing the stty operation. Note that stty is not "sticky", so it's not like you can set it on someone else's terminal, or if there's an intervening close such that there's zero applications holding the terminal open. If this is a C program, and you are doing this to read something you don't want echoed back, consider using "getpass" instead. This email sent to site_archiver(a)lists.apple.com

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Re: gdb, cores & kg switchtoact
by Terry Lambert 25 Aug '05

25 Aug '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com This is just not my day: activation thread pri state wait_queue wait_event 0x01d6d948 0x01d6d948 47 UW 0x003d6120 0x1149610 (gdb) switchtocorethread 0x01d6d948 Left operand of assignment is not an lvalue. Did see this comment for the macro: #Use of this macro requires the gdb submission from 3401283 -- 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 Aug 25, 2005, at 10:30 AM, Brian Bergstrand wrote: I'm investigating a kernel core and trying to use kgmacros' switchtoact. It keeps failing with a memory error though. Try using "switchtocorethread". I even restarted gdb thinking I may have messed up some macro internal state with my fumblings from before. Still no dice. I have the latest dev tools. I assume you have the symbolic kernel that matches the mach_kernel you are running, along with the kgmacros that match the kernel you are running, and that you have NMI'ed the machine to get it into this state. You need to continue in the debugger, and NMI again; this may take several tries, if your machine happens to be in a high-interrupt-with- nothing-much-else-going-on state. Eventually, you will be able to "switchtoact". The problem is that if you hit the NMI at just the wrong time (interrupt context), the debugger doesn't work so well. Someone should do something about this, but since there's a workaround, it's been lower priority than it might be. This email sent to site_archiver(a)lists.apple.com

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tty driver
by Roger deBry 25 Aug '05

25 Aug '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com I have a G4 powerbook and I have been trying to turn off echo mode using the stty command. For some reason it doesn't work. The command works just fine on my i-mac and it works using secure shell to my X server. What could be wrong on my powerbook? _______________________________________________ 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: gdb, cores & kg switchtoact
by Brian Bergstrand 25 Aug '05

25 Aug '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Aug 25, 2005, at 11:31 AM, Quinn wrote: At 11:21 -0500 25/8/05, Brian Bergstrand wrote: Try using "switchtocorethread". This is just not my day: activation thread pri state wait_queue wait_event 0x01d6d948 0x01d6d948 47 UW 0x003d6120 0x1149610 (gdb) switchtocorethread 0x01d6d948 Left operand of assignment is not an lvalue. Did see this comment for the macro: #Use of this macro requires the gdb submission from 3401283 I have the latest dev tools. Brian Bergstrand <http://www.bergstrand.org/brian/> PGP Key ID: 0xB6C7B6A2 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (Darwin) iD8DBQFDDgAzedHYW7bHtqIRAmwGAJ9QtriVkPMKS7kISMHbiLVXqvQSegCcDoca pdqlJETZM2Bl+slmgivlA8M= =6If7 -----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'm investigating a kernel core and trying to use kgmacros' switchtoact. It keeps failing with a memory error though. I even restarted gdb thinking I may have messed up some macro internal state with my fumblings from before. Still no dice. This email sent to site_archiver(a)lists.apple.com

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Re: gdb, cores & kg switchtoact
by Brian Bergstrand 25 Aug '05

25 Aug '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Quinn came up with a solution. On Aug 25, 2005, at 11:29 AM, Andrew Gallatin wrote: Brian Bergstrand writes: What about showactstack? There is much less detail than you get with a backtrace from the current thread, but it can very useful. Drew Brian Bergstrand <http://www.bergstrand.org/brian/> PGP Key ID: 0xB6C7B6A2 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (Darwin) iD8DBQFDDftxedHYW7bHtqIRAth8AKCGLxPAKVkbediMepQ4/ScL0KKVcwCfSh58 3ffttoFggVENb2vG5FGQRMg= =wH52 -----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.… Thanks Drew, but showactstack doesn't cut (been using it). I need to inspect stack locals and fn args. So, is there anyway around this? I need to inspect different act stacks. This email sent to site_archiver(a)lists.apple.com

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Re: gdb, cores & kg switchtoact
by Brian Bergstrand 25 Aug '05

25 Aug '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Aug 25, 2005, at 11:31 AM, Quinn wrote: At 11:21 -0500 25/8/05, Brian Bergstrand wrote: Try using "switchtocorethread". Of course, I completely missed that. *slaps self* Thanks Quinn. Brian Bergstrand <http://www.bergstrand.org/brian/> PGP Key ID: 0xB6C7B6A2 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (Darwin) iD8DBQFDDfrqedHYW7bHtqIRAi8lAJwKWGz7Iklfb4Md94Rdj0EgS97DkgCfS/Qj EU3Pmdl/Xl81IQf+vONowTE= =kDDw -----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'm investigating a kernel core and trying to use kgmacros' switchtoact. It keeps failing with a memory error though. This email sent to site_archiver(a)lists.apple.com

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Xcode, 10.2 and kext
by Stephane Sudre 25 Aug '05

25 Aug '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.… What's the recommended procedure to follow when you need to update an old project builder kext project to Xcode but still wants to have 10.1 or 10.2 to be the OS build target? This email sent to site_archiver(a)lists.apple.com

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Re: gdb, cores & kg switchtoact
by Quinn 25 Aug '05

25 Aug '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Try using "switchtocorethread". S+E -- Quinn "The Eskimo!" <http://www.apple.com/developer/> Apple Developer Technical Support * Networking, Communications, Hardware _______________________________________________ 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.… At 11:21 -0500 25/8/05, Brian Bergstrand wrote: I'm investigating a kernel core and trying to use kgmacros' switchtoact. It keeps failing with a memory error though. This email sent to site_archiver(a)lists.apple.com

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Re: gdb, cores & kg switchtoact
by Andrew Gallatin 25 Aug '05

25 Aug '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Brian Bergstrand writes: > > So, is there anyway around this? I need to inspect different act stacks. What about showactstack? There is much less detail than you get with a backtrace from the current thread, but it can very useful. Drew _______________________________________________ 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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gdb, cores & kg switchtoact
by Brian Bergstrand 25 Aug '05

25 Aug '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 (gdb) switchtoact <ADDRESS> Cannot access memory at address Looking at the macro I see: set (struct savearea *) kdp.saved_state=$newact->machine->pcb (gdb) set (struct savearea *)kdp.saved_state=0 Cannot access memory at address 0x3d1cec So, is there anyway around this? I need to inspect different act stacks. Thanks. P.S. I seem to remember this working under 10.3.x, but I could be wrong. Brian Bergstrand <http://www.bergstrand.org/brian/> PGP Key ID: 0xB6C7B6A2 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (Darwin) iD8DBQFDDe/2edHYW7bHtqIRAlw7AKC3/tbjnozEWfh0KhBIKPP4ubeEegCffVJ5 P1qsFAjAQTz50udLOGrpqiM= =UQ8L -----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'm investigating a kernel core and trying to use kgmacros' switchtoact. It keeps failing with a memory error though. So the macro is trying to change memory and failing to do so. A manual set gives the same error: This must be because the core is not real memory, but a read-only snapshot. This email sent to site_archiver(a)lists.apple.com

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