[LTP] [PATCH] pty/pty07: Restore active console after the testrun
Richard Palethorpe
rpalethorpe@suse.de
Tue Mar 22 09:13:26 CET 2022
Hello,
Cyril Hrubis <chrubis@suse.cz> writes:
> Hi!
>> > static void cleanup(void)
>> > {
>> > - tst_fzsync_pair_cleanup(&fzp);
>> > - if (fd >= 0)
>> > + if (fd >= 0) {
>> > + tst_res(TINFO, "Restoring active console");
>> > + SAFE_IOCTL(fd, VT_ACTIVATE, vt_active);
>> > SAFE_CLOSE(fd);
>> > + }
>> > +
>> > + tst_fzsync_pair_cleanup(&fzp);
>>
>> If you move the fzsync cleanup to the end of cleanup(), you can end up
>> with the open_close() thread racing against fd cleanup.
>
> Ah, right, looking closely at the fzsync, the thread B may be racing
> against the restoration in the case that something caused premature exit
> in the thread A.
>
> Will move the call back to the start of the cleanup().
>
> --
> Cyril Hrubis
> chrubis@suse.cz
Why are we using /dev/tty8 instead of allocating a pty with /dev/ptmx?
--
Thank you,
Richard.
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