# stap -v -e 'probe vfs.read {printf("read performed\n"); exit()}'
parse error: unknown operator @__compat_task
saw: operator '@__compat_task' at /usr/share/systemtap/tapset/linux/syscall_table.stp:7:9
source: if (@__compat_task)
^
parse error: unknown operator @__compat_task
saw: operator '@__compat_task' at /usr/share/systemtap/tapset/linux/syscall_table.stp:38:9
source: if (@__compat_task)
^
2 parse errors.
WARNING: tapset "/usr/share/systemtap/tapset/linux/syscall_table.stp" has errors, and will be skipped
Pass 1: parsed user script and 116 library script(s) using 194804virt/36080res/2880shr/33872data kb, in 170usr/10sys/184real ms.
Pass 2: analyzed script: 1 probe(s), 1 function(s), 4 embed(s), 0 global(s) using 293140virt/135284res/3764shr/132208data kb, in 980usr/550sys/1541real ms.
Pass 3: using cached /root/.systemtap/cache/f5/stap_f5b4780e865866dd8a9378d648be51be_1654.c
Pass 4: using cached /root/.systemtap/cache/f5/stap_f5b4780e865866dd8a9378d648be51be_1654.ko
Pass 5: starting run.
read performed
Pass 5: run completed in 0usr/10sys/492real ms.
# sudo nginx-systemtap-toolkit/ngx-sample-lua-bt -p 28823 --luajit20 -t 5 > tmp.bt
parse error: unknown operator @__compat_task
saw: operator '@__compat_task' at /usr/share/systemtap/tapset/linux/syscall_table.stp:7:9
source: if (@__compat_task)
^
2 parse errors.
WARNING: tapset "/usr/share/systemtap/tapset/linux/syscall_table.stp" has errors, and will be skipped
ERROR: Couldn't insert module '/tmp/stapcgE1XU/uprobes/uprobes.ko': Unknown symbol in module
WARNING: /usr/bin/staprun exited with status: 1
Pass 5: run failed. [man error::pass5]
Number of similar error messages suppressed: 1.
Rerun with -v to see them.
