Commit 572b411c authored Aug 22, 2012 by Tiejun Chen Committed by Benjamin Herrenschmidt Aug 24, 2012

powerpc/kgdb: Do not set kgdb_single_step on ppc



The kgdb_single_step flag has the possibility to indefinitely
hang the system on an SMP system.

The x86 arch have the same problem, and that problem was fixed by
commit 8097551d(kgdb,x86: do not set kgdb_single_step
on x86). This patch does the same behaviors as x86's patch.

Signed-off-by: Dongdong Deng <dongdong.deng@windriver.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

parent 46c5c59e

arch/powerpc/kernel/kgdb.c

+0 −1

Original line number	Original line	Diff line number	Diff line
	@@ -410,7 +410,6 @@ int kgdb_arch_handle_exception(int vector, int signo, int err_code,
	#else		#else
	linux_regs->msr \|= MSR_SE;		linux_regs->msr \|= MSR_SE;
	#endif		#endif
	kgdb_single_step = 1;
	atomic_set(&kgdb_cpu_doing_single_step,		atomic_set(&kgdb_cpu_doing_single_step,
	raw_smp_processor_id());		raw_smp_processor_id());
	}		}