diff options
| author | Jason Wessel <[email protected]> | 2013-07-15 15:27:53 -0500 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2013-08-07 17:35:41 -0300 |
| commit | 8f76fcd902e3b3a7d6f6c695cc8bc053579eb179 (patch) | |
| tree | f3d552c27ff49bb5d28ec58fdf0e3564eeb6d0b8 | |
| parent | c9ee780f2736b7a149658b0cd8c8389da23e190a (diff) | |
perf machine: Do not require /lib/modules/* on a guest
For some types of work loads and special guest environments, you might
have a kernel that has no kernel modules. The perf kvm record tool
fails instantiate vmlinux maps when the kernel modules directory cannot
be opened, even though the kallsyms has been properly processed. This
leads to a perf kvm report that has no guest symbols resolved.
This patch changes the failure to locate kernel modules to be non-fatal.
Signed-off-by: Jason Wessel <[email protected]>
Acked-by: David Ahern <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
| -rw-r--r-- | tools/perf/util/machine.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index ef3b49cde04e..6fcc358138ae 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -806,7 +806,10 @@ static int machine__create_modules(struct machine *machine) free(line); fclose(file); - return machine__set_modules_path(machine); + if (machine__set_modules_path(machine) < 0) { + pr_debug("Problems setting modules path maps, continuing anyway...\n"); + } + return 0; out_delete_line: free(line); |