[<ffffffff980b8c3e>] proc_pid_stack+0xae/0x100
[<ffffffff980b9c92>] proc_single_show+0x52/0x90
[<ffffffffc05e0bb0>] seq_read.kpatch+0x110/0x411
[<ffffffff9803c7af>] vfs_read+0x9f/0x170
[<ffffffff9803d67f>] SyS_read+0x7f/0xf0
[<ffffffff9853a85b>] system_call_fastpath+0x22/0x27
[<ffffffffffffffff>] 0xffffffffffffffff