installation instructions for rr?

Robert O'Callahan robert at ocallahan.org
Tue Aug 2 03:08:58 UTC 2016


On Tue, Aug 2, 2016 at 1:22 PM, Laszlo Ersek <lersek at redhat.com> wrote:

> Total Test time (real) = 3532.40 sec
>
> The following tests FAILED:
>         351 - sched_setparam (Failed)
>         352 - sched_setparam-no-syscallbuf (Failed)
>         687 - thread_exit_signal (Failed)
>         1223 - sched_setparam-32 (Failed)
>         1224 - sched_setparam-32-no-syscallbuf (Failed)
>         1489 - madvise_dontfork-32 (Failed)
>         1490 - madvise_dontfork-32-no-syscallbuf (Failed)
>         1655 - fork_exec_info_thr-32 (Failed)
>         1656 - fork_exec_info_thr-32-no-syscallbuf (Failed)
>         1731 - switch_processes-32 (Failed)
>         1732 - switch_processes-32-no-syscallbuf (Failed)
> Errors while running CTest
> make: *** [test] Error 8
> -------
>
> Not sure if these are known issues or false positives. (I built at
> commit 214699ee4573.)
>

They should work. But those failures probably won't affect your usage.


> Anyway I'll try out "rr" tomorrow with an example debugging session, on
> QEMU (i.e., QEMU will be the debuggee). Thanks for your help!
>

KVM virtualization won't work but the JIT modes should work. Other people
have used rr successfully on QEMU.

Rob
-- 
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