Date: Tue, 18 Aug 1998 15:16:07 -0400 From: "Jose' Carlos Brustoloni" <jcb@research.bell-labs.com> To: freebsd-questions@FreeBSD.ORG Subject: Dropping into DDB when X server is active Message-ID: <35D9D2F6.AC30DE26@research.bell-labs.com>
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Hi,
I am using FreeBSD 2.2.6 on a Pentium II 266 MHz PC with 64 MB memory
and Matrox Millenium II AGP video board. I am running the XFree86
version that comes in the FreeBSD 2.2.6 release.
I compiled the kernel with options DDB, BREAK_TO_DEBUGGER,
UCONSOLE, and GDB_REMOTE_CHAT. My .xinitrc file
runs xterm with the -C flag (so that the initial xterm would grab
the system console).
I am adding some modifications to the kernel and would like to be able to:
- set a breakpoint in DDB; continue;
- start X;
- run an application (Netscape) that causes the kernel breakpoint to be
reached; AND
- drop into DDB so that I can examine register, processes, etc.
Unfortunately, when the breakpoint is reached, the system simply hangs
instead of dropping into DDB.
I also would like to be able to drop into DDB by pressing Ctrl-Alt-ESC
when the X server is running. Unfortunately, this key combination is
ignored by the system unless the screen is in console mode.
Is there any way to use DDB when the X server is running?
Thanks,
Jose'
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