gdb oddity with disabled breakpoints

[Tom Tromey <tromey at redhat dot com>]

I have a breakpoint set in a shared library.  I put a condition on it,
then I disable it.  Then I re-run the inferior.  I get this:

(gdb) cond 3 start_PC == 135
(gdb) disa 3
(gdb) info b
Num Type           Disp Enb Address    What
1   breakpoint     keep y   0x08048ae5 in main
                                       at ../../../gcc/libjava/gij.cc:59
	breakpoint already hit 1 time
2   breakpoint     keep y   0x401bcb2c in verify_fail(char*, int)
                                       at ../../../gcc/libjava/verify.cc:2675
	breakpoint already hit 1 time
3   breakpoint     keep n   0x4032f051 in _Jv_BytecodeVerifier::verify_instructions_0() at ../../../gcc/libjava/verify.cc:1836
	stop only if this->start_PC == 135
(gdb) r
The program being debugged has been started already.
Start it from the beginning? (y or n) y

Starting program: /x1/egcs/install/bin/gij loadem < QQ
Error in re-setting breakpoint 3:
No symbol "start_PC" in current context.
Error in re-setting breakpoint 3:
No symbol "start_PC" in current context.
Error in re-setting breakpoint 3:
No symbol "start_PC" in current context.
Error in re-setting breakpoint 3:
No symbol "start_PC" in current context.
Error in re-setting breakpoint 3:
No symbol "start_PC" in current context.
[New Thread 1024 (runnable)]
Error in re-setting breakpoint 3:
No symbol "start_PC" in current context.

Debugger segmentation fault



I don't have a stack trace for this failure (yet).  I think I may have
reported this before but I don't recall.

My real question is not why gdb crashes, but why it apparently tries
to evaluate my breakpoint condition even though the breakpoint is
disabled.  If I disable a breakpoint explicitly, I don't want gdb to
even try to handle it.  At the very least I would expect these
messages to be suppressed.

Tom