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| author | Ingo Molnar <mingo@elte.hu> | 2011-06-04 12:13:06 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-06-04 12:13:06 +0200 |
| commit | 710054ba25c0d1f8f41c22ce13ba336503fb5318 (patch) | |
| tree | f9b09b722bf511841539173d946f90a20fc2e59a /tools/perf/builtin-record.c | |
| parent | 74c355fbdfedd3820046dba4f537876cea54c207 (diff) | |
| parent | b273fa9716aa1564bee88ceee62f9042981cdc81 (diff) | |
| download | kernel_samsung_crespo-710054ba25c0d1f8f41c22ce13ba336503fb5318.zip kernel_samsung_crespo-710054ba25c0d1f8f41c22ce13ba336503fb5318.tar.gz kernel_samsung_crespo-710054ba25c0d1f8f41c22ce13ba336503fb5318.tar.bz2 | |
Merge branch 'perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Diffstat (limited to 'tools/perf/builtin-record.c')
| -rw-r--r-- | tools/perf/builtin-record.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 0974f95..8e2c857 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -823,6 +823,16 @@ int cmd_record(int argc, const char **argv, const char *prefix __used) symbol__init(); + if (symbol_conf.kptr_restrict) + pr_warning( +"WARNING: Kernel address maps (/proc/{kallsyms,modules}) are restricted,\n" +"check /proc/sys/kernel/kptr_restrict.\n\n" +"Samples in kernel functions may not be resolved if a suitable vmlinux\n" +"file is not found in the buildid cache or in the vmlinux path.\n\n" +"Samples in kernel modules won't be resolved at all.\n\n" +"If some relocation was applied (e.g. kexec) symbols may be misresolved\n" +"even with a suitable vmlinux or kallsyms file.\n\n"); + if (no_buildid_cache || no_buildid) disable_buildid_cache(); |