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Fixed a pretty fatal bug in the page fault handling: interrupts were enabled

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even if "kernel_startup" was "true". Page faults are now no longer allowed
during kernel startup (and could be easily avoided). The only situation where
we accept page faults with interrupts turned off now is during a kernel debugger
session.
Added a command debug_debugger_running() to test for that situation.
kernel_debugger() no longer sets kernel_startup while it's running; there should
be no situation when this could be helpful.
Interrupts are no longer enabled when a page fault happens in the kernel
debugger.
This potentially fixes all sorts of problems, and not only in the kernel debugger,
it could also have affected SMP (will test later).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14045 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2005-08-21 23:27:51 +00:00
parent 8a4462f51c
commit 67a7102658
3 changed files with 18 additions and 12 deletions
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headers/private/kernel/debug.h
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@@ -32,6 +32,7 @@ extern status_t debug_init(struct kernel_args *args);
extern status_t debug_init_post_vm(struct kernel_args *args);
extern void debug_early_boot_message(const char *string);
extern void debug_puts(const char *s);
extern bool debug_debugger_running(void);
extern void _user_debug_output(const char *userString);