site_archiver@lists.apple.com Delivered-To: darwin-kernel@lists.apple.com -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Aug 25, 2005, at 12:58 PM, Terry Lambert wrote: On Aug 25, 2005, at 10:30 AM, 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. Yes. 104.2 debug kit. No. This is a core dump file. :) Brian Bergstrand <http://www.bergstrand.org/brian/> PGP Key ID: 0xB6C7B6A2 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (Darwin) iD8DBQFDDgtbedHYW7bHtqIRAv2sAKDJnvg7RmluW7DhRKp0Fe7XtXXyNACcDiza 7xBKpW6WeS+KeiaGdSNWZ1Y= =y/R/ -----END PGP SIGNATURE----- _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.a... 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. 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. switchtoact won't work at all, so Quinn suggested switchtocorethread, but that is not working either. 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. I've noticed when live debugging, that I have to hit 'c' multiple times before the kernel will actually continue. It takes 3-4 times usually. On 10.3 it only takes once. This email sent to site_archiver@lists.apple.com