Em Fri, Jul 15, 2016 at 04:15:48PM +0900, Masami Hiramatsu escreveu: > On Thu, 14 Jul 2016 21:16:41 -0300 > Arnaldo Carvalho de Melo <a...@kernel.org> wrote: > > 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. Yeah, that is the problem at hand, I figured there weren't functions liek that, but the error message was tottally misleading :-) > - 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. Right, - Arnaldo
