Author: marcel
Date: Fri Jan 29 16:14:35 2010
New Revision: 203171
URL: http://svn.freebsd.org/changeset/base/203171
Log:
When backtracing self, start with the current frame (i.e. the
frame of db_trace_self()) and not the caller's frame. The use
of builtin_frame_address(1) to get the caller's frame is not
reliable and can cause panics.
Modified:
head/sys/arm/arm/db_trace.c
Modified: head/sys/arm/arm/db_trace.c
==============================================================================
--- head/sys/arm/arm/db_trace.c Fri Jan 29 15:58:12 2010 (r203170)
+++ head/sys/arm/arm/db_trace.c Fri Jan 29 16:14:35 2010 (r203171)
@@ -206,6 +206,6 @@ db_trace_self(void)
{
db_addr_t addr;
- addr = (db_addr_t)__builtin_frame_address(1);
+ addr = (db_addr_t)__builtin_frame_address(0);
db_stack_trace_cmd(addr, -1);
}
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