Re: [PATCH] powerpc: Fix MAX_STACK_TRACE_ENTRIES too low warning again

2013-05-07 Thread Li Zhong
On Tue, 2013-05-07 at 10:32 +0800, Li Zhong wrote: > Saw this warning again, and this time from the ret_from_fork path. > > It seems we could clear the back chain earlier in copy_thread(), which > could cover both path, and also fix potential lockdep usage in > schedule_tail(), or exception occur

[PATCH] powerpc: Fix MAX_STACK_TRACE_ENTRIES too low warning again

2013-05-06 Thread Li Zhong
Saw this warning again, and this time from the ret_from_fork path. It seems we could clear the back chain earlier in copy_thread(), which could cover both path, and also fix potential lockdep usage in schedule_tail(), or exception occurred before we clear the back chain. Signed-off-by: Li Zhong