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Bug #1094

closed

kgdb crashes when remote debugging requested

Added by jgordeev over 16 years ago. Updated over 14 years ago.

Status:
Closed
Priority:
Normal
Assignee:
corecode
Category:
-
Target version:
-
Start date:
Due date:
% Done:

0%

Estimated time:

Description

kgdb crashes when remote debugging (-r) is requested. The crash involves
a NULL pointer dereference in libkvm.
I've found that the crash was introduced with revision 1.2 of
src/gnu/usr.bin/gdb/kgdb/kgdb.c.
In that revision the global variable 'kvm' isn't initialised if remote
debugging is requested, however it is always used. The value of 'kvm' is
passed to a libkvm function which attempts to dereference it.

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