Re: [PATCH 1/8] riscv: stacktrace: convert arch_stack_walk() to noinstr

On Tue, 18 Jun 2024 02:55:32 PDT (-0700), a...@ghiti.fr wrote: Hi Andy, On 13/06/2024 09:11, Andy Chiu wrote: arch_stack_walk() is called intensively in function_graph when the kernel is compiled with CONFIG_TRACE_IRQFLAGS. As a result, the kernel logs a lot of arch_stack_walk and its sub-funct

Re: [PATCH 1/8] riscv: stacktrace: convert arch_stack_walk() to noinstr

Hi Andy, On 13/06/2024 09:11, Andy Chiu wrote: arch_stack_walk() is called intensively in function_graph when the kernel is compiled with CONFIG_TRACE_IRQFLAGS. As a result, the kernel logs a lot of arch_stack_walk and its sub-functions into the ftrace buffer. However, these functions should not

[PATCH 1/8] riscv: stacktrace: convert arch_stack_walk() to noinstr

arch_stack_walk() is called intensively in function_graph when the kernel is compiled with CONFIG_TRACE_IRQFLAGS. As a result, the kernel logs a lot of arch_stack_walk and its sub-functions into the ftrace buffer. However, these functions should not appear on the trace log because they are part of