diff options
Diffstat (limited to 'testsuite/systemtap.examples/memory')
| -rw-r--r-- | testsuite/systemtap.examples/memory/overcommit.meta | 6 | ||||
| -rw-r--r-- | testsuite/systemtap.examples/memory/overcommit.stp | 6 |
2 files changed, 12 insertions, 0 deletions
diff --git a/testsuite/systemtap.examples/memory/overcommit.meta b/testsuite/systemtap.examples/memory/overcommit.meta new file mode 100644 index 00000000..72fb1579 --- /dev/null +++ b/testsuite/systemtap.examples/memory/overcommit.meta @@ -0,0 +1,6 @@ +title: Log failed process memory allocation due to overcommit limits +name: overcommit.stp +keywords: memory process +description: The overcommit.stp script prints a line each time the kernel refuses a memory allocation request from a process because of /proc/sys/vm/overcommit* limits. +test_check: stap -p4 overcommit.stp +test_installcheck: stap overcommit.stp -c "sleep 0.2" diff --git a/testsuite/systemtap.examples/memory/overcommit.stp b/testsuite/systemtap.examples/memory/overcommit.stp new file mode 100644 index 00000000..a0800107 --- /dev/null +++ b/testsuite/systemtap.examples/memory/overcommit.stp @@ -0,0 +1,6 @@ +probe kernel.function("__vm_enough_memory").return { + if ($return != 0) { + printf("overcommit blocked malloc, process %s (%d), %d pages\n", + execname(), pid(), $pages) + } +} |