Date: Fri, 29 Jan 2010 16:14:35 +0000 (UTC) From: Marcel Moolenaar <marcel@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r203171 - head/sys/arm/arm Message-ID: <201001291614.o0TGEZ7m010661@svn.freebsd.org>
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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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