Hi Arnaldo, On Thu, 14 Jul 2016 21:16:41 -0300 Arnaldo Carvalho de Melo <a...@kernel.org> wrote:
> Hi Masami, > > I think this worked at some point? > > [root@jouet acme]# perf probe -F | tail > zswap_frontswap_init > zswap_frontswap_invalidate_area > zswap_frontswap_invalidate_page > zswap_frontswap_load > zswap_frontswap_store > zswap_pool_create > zswap_pool_current > zswap_update_total_size > zswap_writeback_entry > zswap_zpool_param_set > [root@jouet acme]# perf probe -F rt_sp* > no symbols found in [kernel.kallsyms], maybe install a debug package? > Failed to load symbols in kernel It seems that 2 problems we have, - There is no function which starts with rt_sp. - The error message is not good for that. If you try perf probe -F acpi_*, you'll see a list of functions. > [root@jouet acme]# perf probe -F rt_sp\* > no symbols found in [kernel.kallsyms], maybe install a debug package? > Failed to load symbols in kernel So, yeah, it should check symbol loading is really failed and should be changed as "no symbols match to given filter" etc. Thank you, > [root@jouet acme]# > > > I.e. the second message is misleading :-\ > > - Arnaldo > -- Masami Hiramatsu <mhira...@kernel.org>
