<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - Allow to disable setting the kernel time zone" href="https://bugs.freedesktop.org/show_bug.cgi?id=81538#c4">Comment # 4</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - Allow to disable setting the kernel time zone" href="https://bugs.freedesktop.org/show_bug.cgi?id=81538">bug 81538</a> from <a class="email" href="mailto:george@nsup.org" title="Nicolas George <george@nsup.org>"> Nicolas George</a> <pre>> - Teach systemd to update the kernel's TZ when DST changes; it is in the > TODO, infrastruture for it is there, just not implemented. It will not be > entirely race-free though, not sure if we really should try that ... I believe that IF setting the kernel timezone is considered necessary, then updating it is undoubtedly the Right Thing. But that will not help for filesystems timestamps: the kernel uses a constant offset for the whole filesystem, and due to DST roughly half the files are in the wrong timezone. Updating the timezone will only change what offset is used: the one at boot time or the one at mount time. > - Define that "local" is the time without DST, we just upload the > local time without the DST offset; that way the kernel's "local" might > be off by an hour, but still closer than UTC and not jumping. Very simple > and maybe a reasonable compromise. not sure. I find this has the feel of a half measure. Also, it does not work when the timezone changes for another reason (this is an argument I had not used before), such as someone traveling (and updating the config accordingly) to a different timezone. > - Define that the kernel's "local" is so backwards, that the file systems, > SCSI, netfilter are just too broken to be supported that way; that we just > ignore all ideas of "local" and define the use UTC and accept hickups > for multi-OS boots. Sounds a bit radical, but the most appealing of all > options, to just not support that kind of stupidity in 2014. I wholeheartedly support that solution, but I may be biassed by the facts that I do not interact much with other OSes and that CET/CEST are not far from UTC. Concerning netfilter, if I read the doc correctly the kernel timezone is not used by default and “using --kerneltz is highly discouraged” (in bold). Thanks for taking an interest.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>