Messages in this thread | | | Date | Sun, 4 Sep 2022 11:27:18 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH] core_pattern: add CPU specifier |
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On Sat, 3 Sep 2022 08:43:30 +0200 Oleksandr Natalenko <oleksandr@redhat.com> wrote:
> Statistically, in a large deployment regular segfaults may indicate a CPU issue. > > Currently, it is not possible to find out what CPU the segfault happened on. > There are at least two attempts to improve segfault logging with this regard, > but they do not help in case the logs rotate. > > Hence, lets make sure it is possible to permanently record a CPU > the task ran on using a new core_pattern specifier. > > ... > > } > @@ -535,6 +539,7 @@ void do_coredump(const kernel_siginfo_t *siginfo) > */ > .mm_flags = mm->flags, > .vma_meta = NULL, > + .cpu = raw_smp_processor_id(), > };
Why use the "raw_" function here?
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