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Fix the `trap type 0x10' problem. Apparently, something has changed and 

now makes use of lockmgr().  Since we broke into the debugger from an interrupt,
we don't have a curproc, so when lockmgr() tries to find our PID it barfs,
causing another break into DDB which then calls the mysterious code that
calls lockmgr() again.....

So set doing_shutdown while we're in DDB so lockmgr ignores locks.
This commit is contained in:
eeh 2000-09-28 18:54:39 +00:00
parent 59ef356b35
commit 0ca74ba0d8
1 changed files with 4 additions and 1 deletions
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5
sys/arch/sparc64/sparc64/db_interface.c
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@ -1,4 +1,4 @@
/* $NetBSD: db_interface.c,v 1.43 2000/09/28 15:32:36 eeh Exp $ */
/* $NetBSD: db_interface.c,v 1.44 2000/09/28 18:54:39 eeh Exp $ */
/*
* Mach Operating System
@ -174,8 +174,10 @@ kdb_trap(type, tf)
extern int savetstate(struct trapstate *ts);
extern void restoretstate(int tl, struct trapstate *ts);
extern int trap_trace_dis;
extern int doing_shutdown;
trap_trace_dis++;
doing_shutdown++;
#if NFB > 0
fb_unblank();
#endif
@ -248,6 +250,7 @@ kdb_trap(type, tf)
#endif
*tf = ddb_regs.ddb_tf;
trap_trace_dis--;
doing_shutdown--;
return (1);
}