virExec:
for (fd = 3; fd < openmax; fd++) {
if (fd == childin || fd == childout || fd == childerr)
continue;
if (!virCommandFDIsSet(cmd, fd)) {
tmpfd = fd;
VIR_MASS_CLOSE(tmpfd);
} else if (virSetInherit(fd, true) < 0) {
virReportSystemError(errno, _("failed to preserve fd %d"), fd);
goto fork_error;
}
}
openmax is the limit that gets indirectly derived from that systemd limit.
But with [1] Im not sure ho much more one can do.
[1]: https://stackoverflow.com/questions/899038/getting-the-highest-
allocated-file-descriptor/918469#918469
** Changed in: libvirt (Ubuntu)
Status: In Progress => Opinion
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https://bugs.launchpad.net/bugs/1727366
Title:
virsh start/destroy is too slow after adding firewall rule
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