Re: [PATCH 06/17] tools lib symbol: Skip non-address kallsyms line

Arnaldo Carvalho de Melo
2018-02-06T19:08:08Z

Em Tue, Feb 06, 2018 at 04:06:49PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Tue, Feb 06, 2018 at 07:18:02PM +0100, Jiri Olsa escreveu:
> > Adding check on failed attempt to parse the address
> > and skip the line parsing early in that case.
>
> How did you stumble on that? Can you provide an example of a line or
> situation where this would happen?

Something like this:

[acme@jouet perf]$ cat /proc/kallsyms | head
(null) A irq_stack_union
(null) A __per_cpu_start
(null) A cpu_debug_store
(null) A cpu_tss_rw
(null) A gdt_page
(null) A exception_stacks
(null) A entry_stack_storage
(null) A espfix_waddr
(null) A espfix_stack
(null) A cpu_llc_id
[acme@jouet perf]$ id
uid=1000(acme) gid=1000(acme) groups=1000(acme),10(wheel),18(dialout),54(lock) context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023
[acme@jouet perf]$

?

- Arnaldo