Re: F37 proposal: Add -fno-omit-frame-pointer to default compilation flags (System-Wide Change proposal)

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 11/8/22 18:46, Frank Ch. Eigler wrote:
> Demi Marie Obenour <demiobenour@xxxxxxxxx> writes:
> 
>> Three other options I can think of:
>> [...]
> 
> Another one:
> 
>   4. Speed up out-of-context backtracer(s), possibly consuming
>      kernel-perf-ringbuffer stack dumps, or possibly using another
>      event source to trigger and work via ptrace and /proc/$pid/mem
> 
> - FChE

Kernel stack dumps will not work for programs (such as OCaml 5.0)
that use segmented stacks.  A userspace ptracer might work if it
is only woken up when absolutely necessary, but I suspect it would
be slow due to syscall overhead.  That is why I suggested the vDSO
dumper: it would run from the process’s own context.
-- 
Sincerely,
Demi Marie Obenour (she/her/hers)
_______________________________________________
devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx
To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx
Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx
Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue




[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Fedora Announce]     [Fedora Users]     [Fedora Kernel]     [Fedora Testing]     [Fedora Formulas]     [Fedora PHP Devel]     [Kernel Development]     [Fedora Legacy]     [Fedora Maintainers]     [Fedora Desktop]     [PAM]     [Red Hat Development]     [Gimp]     [Yosemite News]

  Powered by Linux