core_kernel_text is used by MIPS in its function graph trace processing, so having this method traced leads to an infinite set of recursive calls such as: Call Trace: ftrace_return_to_handler+0x50/0x128 core_kernel_text+0x10/0x1b8 prepare_ftrace_return+0x6c/0x114 ftrace_graph_caller+0x20/0x44 return_to_handler+0x10/0x30 return_to_handler+0x0/0x30 return_to_handler+0x0/0x30 ftrace_ops_no_ops+0x114/0x1bc core_kernel_text+0x10/0x1b8 core_kernel_text+0x10/0x1b8 core_kernel_text+0x10/0x1b8 ftrace_ops_no_ops+0x114/0x1bc core_kernel_text+0x10/0x1b8 prepare_ftrace_return+0x6c/0x114 ftrace_graph_caller+0x20/0x44 (...) Mark the function notrace to avoid it being traced.
Unified · Split
| @@ -69,7 +69,7 @@ static inline int init_kernel_text(unsigned long addr) · 68 unmodified lines | |||
| 69 | return 0; | 69 | return 0; |
| 70 | } | 70 | } |
| 71 | 71 | ||
| 72 | int core_kernel_text(unsigned long addr) | 72 | int notrace core_kernel_text(unsigned long addr) |
| 73 | { | 73 | { |
| 74 | if (addr >= (unsigned long)_stext && | 74 | if (addr >= (unsigned long)_stext && |
| 75 | addr < (unsigned long)_etext) | 75 | addr < (unsigned long)_etext) |