On Sun, Jun 18, 2017 at 08:01:38PM -0300, Arnaldo Carvalho de Melo wrote: > Thanks! > > On Jun 18, 2017 7:53 PM, "Jiri Olsa" <jo...@redhat.com> wrote: > > > On Fri, Jun 16, 2017 at 01:25:04PM -0300, Arnaldo Carvalho de Melo wrote: > > > Em Fri, Jun 16, 2017 at 02:12:53PM +0200, Jiri Olsa escreveu: > > > > Ingo reported following warning flooding the report out: > > > > > > > > unwind: target platform=x86 is not supported > > > > > > > > We trigger this warning when the dwarf unwinder is asked to > > > > process architecture which wasn't compiled in, like when you > > > > get 32bit application samples on your 64bit server and you > > > > don't have the 32bit remote unwind support compiled in. > > > > > > > > This patch limits the warning to single message for arch, > > > > and adds bits info. Above message is changed to: > > > > > > > > unwind: target platform=x86 32bit is not supported > > > > > > Can we have a more informative message telling the user what is > > > necessary to have this feature supported? > > > > > > The way you phrased it looks like it is not supported at all, while what > > > I read in the discussion is that one needs to have specific versions of > > > support libraries installed to have this working, right? > > > > exactly, I'll dig out from changelogs needed libunwind version > > and change the changelog in v2
He Kuang, could you please give me details on how to enable x86 remote unwind on x86_64 server? can't find that in the libunwind's ./configure script the feature tool detection example needs libunwind-x86.h header and -lunwind-x86.. which is provided by libunwind-devel.i686 pkg, but it conflicts with x86_64 libunwind-devel on fedora: Error: Transaction check error: file /usr/include/libunwind.h from install of libunwind-devel-1.2-1.fc25.i686 conflicts with file from package libunwind-devel-1.2-1.fc25.x86_64 jirka
