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4b04e0decd
BPF basic filtering test fails on s390x (when vmlinux debuginfo is utilized instead of /proc/kallsyms) Info: - bpf_probe_load installs the bpf code at do_epoll_wait. - For s390x, do_epoll_wait resolves to 3 functions including inlines. found inline addr: 0x43769e Probe point found: __s390_sys_epoll_wait+6 found inline addr: 0x437290 Probe point found: do_epoll_wait+0 found inline addr: 0x4375d6 Probe point found: __se_sys_epoll_wait+6 - add_bpf_event creates evsel for every probe in a BPF object. This results in 3 evsels. Solution: - Expected result = 50% of the samples to be collected from epoll_wait * number of entries present in the evlist. Committer testing: # perf test 42 42: BPF filter : 42.1: Basic BPF filtering : Ok 42.2: BPF pinning : Ok 42.3: BPF prologue generation : Ok 42.4: BPF relocation checker : Ok # Signed-off-by: Sumanth Korikkar <sumanthk@linux.ibm.com> Reviewed-by: Thomas Richter <tmricht@linux.ibm.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: bpf@vger.kernel.org Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Sven Schnelle <svens@linux.ibm.com> LPU-Reference: 20200817072754.58344-1-sumanthk@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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| .. | ||
| accounting | ||
| arch | ||
| bootconfig | ||
| bpf | ||
| build | ||
| cgroup | ||
| debugging | ||
| edid | ||
| firewire | ||
| firmware | ||
| gpio | ||
| hv | ||
| iio | ||
| include | ||
| io_uring | ||
| kvm/kvm_stat | ||
| laptop | ||
| leds | ||
| lib | ||
| memory-model | ||
| nfsd | ||
| objtool | ||
| pci | ||
| pcmcia | ||
| perf | ||
| power | ||
| scripts | ||
| spi | ||
| testing | ||
| thermal/tmon | ||
| time | ||
| usb | ||
| virtio | ||
| vm | ||
| wmi | ||
| Makefile | ||