OpenCloudOS-Kernel/arch/powerpc/xmon
Michael Ellerman d2b496e5e1 powerpc/xmon: Don't signal we've entered until we're finished printing
Currently we set our cpu's bit in cpus_in_xmon, and then we take the
output lock and print the exception information.

This can race with the master cpu entering the command loop and printing
the backtrace. The result is that the backtrace gets garbled with
another cpu's exception print out.

Fix it by delaying the set of cpus_in_xmon until we are finished
printing.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-02-11 11:24:51 +11:00
..
Makefile powerpc: Build kernel with -mcmodel=medium 2013-01-10 17:00:31 +11:00
ansidecl.h powerpc: Merge xmon 2005-10-28 22:53:37 +10:00
dis-asm.h [POWERPC] Make xmon disassembly optional 2006-12-04 20:40:32 +11:00
nonstdio.c powerpc/xmon: Fallback to printk() in xmon_printf() if udbg is not setup 2012-11-15 13:00:02 +11:00
nonstdio.h powerpc/xmon: Merge start.c into nonstdio.c 2012-11-15 12:59:46 +11:00
ppc-dis.c [POWERPC] Import updated version of ppc disassembly code for xmon 2006-12-04 20:40:36 +11:00
ppc-opc.c bug.h: add include of it to various implicit C users 2012-02-29 17:15:08 -05:00
ppc.h [POWERPC] Import updated version of ppc disassembly code for xmon 2006-12-04 20:40:36 +11:00
spu-dis.c [PATCH] arch/powerpc trivial annotations 2007-02-09 09:14:06 -08:00
spu-insns.h [POWERPC] Import spu disassembly code into xmon 2006-12-04 20:40:29 +11:00
spu-opc.c bug.h: add include of it to various implicit C users 2012-02-29 17:15:08 -05:00
spu.h [POWERPC] Import spu disassembly code into xmon 2006-12-04 20:40:29 +11:00
xmon.c powerpc/xmon: Don't signal we've entered until we're finished printing 2014-02-11 11:24:51 +11:00