Hi Thomas, On 05/18/2018 03:51 PM, Thomas-Mich Richter wrote: [...] > > This patch fails on s390. I used 4.17.0rc5 + fedora 27 and I get this output: > > > [root@p23lp27 perf]# ./perf test 59 > 59: probe libc's inet_pton & backtrace it with ping : Ok > [root@p23lp27 linux]# cd ~/linux; patch -p1 < ../inet_pton1 > (Stripping trailing CRs from patch; use --binary to disable.) > patching file tools/perf/tests/shell/record+probe_libc_inet_pton.sh > [root@p23lp27 linux]# cd -; > [root@p23lp27 perf]# ./perf test 59 > 59: probe libc's inet_pton & backtrace it with ping : FAILED! > [root@p23lp27 perf]# > > Debugging revealed this line as cause of failure: > > > FAIL: expected backtrace entry 2 > "gaih_inet.*\+0x[[:xdigit:]]+[[:space:]]\(/usr/lib64/libc-2.26.so|inlined\)$" > got "fdcb1 gaih_inet.constprop.7 (/usr/lib64/libc-2.26.so)" > > Here is the output of the trace file > > [root@p23lp27 perf]# perf script > ping 87291 [001] 96936.231618: probe_libc:inet_pton: (3ff96342378) > 142378 __inet_pton (inlined) > fdcb1 gaih_inet.constprop.7 (/usr/lib64/libc-2.26.so) > 100189 __GI_getaddrinfo (inlined) > 398d main (/usr/bin/ping) > 2303d __libc_start_main (/usr/lib64/libc-2.26.so) > 457b [unknown] (/usr/bin/ping) > > [root@p23lp27 perf]# > > Hope this helps >
Can you please apply these two patches as well and then re-test? [1] https://lkml.org/lkml/2018/5/17/112 [2] https://lkml.org/lkml/2018/5/17/113 - Sandipan
