As the file is rarely updated, and leap seconds are announced at least one month in advance usually longer, it need not be. Ubuntu running inside wsl in windows10 as the groundwork has been done, there are several popular linux distributions are available to install as an app directly via windows 10 store. Resolve leap second issues in red hat enterprise linux red hat. Get information on what the leap second bug is and how it may affect your systems. On the day of my testing, all live links returned a 404 error, and i had to do some search acrobatics to find the 900 mb kdeplasma iso.
Script to audit ubuntu servers for leap second issues. That minimal system does not have ntpd running, nor does it have either of. Java leap second bug 30 june 1 july 2012 fix lxadm linux. Dont have much experience with ubuntu, rhel provided a detector but did not find anything similar for ubuntu. Other than the leap second bug fix, hybrid graphics support is. The bug was found to affect kernel version numbers 2. The leapsecond vulnerability detector script has exposed the kernel to be vulnerable and the impact could be none to as high as a kernel crash as indicated by rh during the leap second transition period. The international earth rotation and reference systems service iers announced that a positive leap second will be introduced on the last day of june 2015 official bulletin c 49 making the day with 86,401 seconds in 2012, a similar event created major outages on most of the internet with only few avoiding problems. However, that update had not yet been pushed out to all versions of linux by last saturday. Leap second bug cripples linux servers at airlines, reddit, linkedin not a good time to be australian. Also, keep in mind that the leap second bug is not relegated to the aboveswitches, routers, firewalls, and loadbalancers are also equally at risk. You have tumbleweed and leap, and its the under the second label, youll find what you need.
If you saw an issue you may want to look into what might be doing an absolute time update at exactly midnight utc on your system. Follow our detailed guide to resolve any issues the lepa second issue could cause. Grub customizer a graphical grub2burg configuration application grub customizer is a graphical configuration tool to modify the grub2burg settings with focus on the individual list order without losing the dynamical behavior of grub also usable on live cds. You do this when you are triaging bug reports requirements for joining. Anyone else experiencing high rates of linux server. Even my machines with ancient images like ubuntu 8 where completely unbothered. Media server downloads plex media server for windows.
On july 1st, 2015 the global atomic clocks will add a leap second to align atomic time to solar time. I will install opensuse leap with kde plasma 5 as the desktop environment. Please stop commenting in this bug about unrelated leapsecond problems that occurred in 2012. This blog discusses how to prepare your database for the new leap second coming in the new year. Among other examples, the behaviour is documented in the blog of the mozilla foundation, where strange peak loads on one mozilla server were observed from the time the leap second was added. Resetting the date as shown above previously without restarting the server is an easy and fast fix to the bug. If the current file is acceptable, no download or restart occurs.
However, if youve already rebooted the computer at least once since the leap second, then you are no longer affected by that bug, and you must be seein. At the end of this year, on december 31, 2016, a new leap second gets added. The interesting thing is, it weighs half the typical ubuntufedora offering. How the leap second bug led facebook to build dcim tools. Fixes and workaround to avoid issues caused by leap second 2015.
It can be difficult to choose one as many of them differ in install method, desktop environment, apps available and repositories used. I assume youre referring to the leap second bugtheres no leap day bug that im aware of. This process was last performed on july 1st, 2012 and caused issues with many linux servers. As those are fanless pcs, it seems plausible that the leap second bug or some 3rd party software as a result of the leap second bug could cause the system to overheat, or enter a boot loop or whatever else that could cause hardware faults. How can i tell if my ubuntu kernel leap second bug free. We in fact saw no issues on any rhel5rhel6rhel7 server due to this leap second. Tmack writes the last time we had a leap second, sysadmins were taken a bit by surprise when a random smattering of systems locked up including slashdot itself due to a kernel bug causing a race condition specific to the way leap seconds are handlednotified by ntp.
It is build from source code of sle suse linux enterprise and can be installed only on 64bit machine. Leap second bug causes site, software crashes cbs news. Thankfully, the vast majority of all servers in the nethosting data center did have this update and experienced no down time due to this glitch. The ubuntu bug control team ubuntu bugcontrol in launchpad is a subset of the ubuntu bug squad who can change the importance of ubuntu bug tasks, set the status of an ubuntu bug task to triaged or wont fix and target a bug for a release of ubuntu. An anonymous reader writes in with a wired story about the problems caused by the leap second last night. The 2015 leap second issue could affect red hat enterprise linux. I recently ran dmesg grep leap second on my main 16. In march of this year, the developer patched a fix for the leap second bug into the linux kernel code. Resolve leap second issues in red hat enterprise linux.
As widely reported, the addition of the leap second on 20120630 has caused high. The utc time standard, widely used for international timekeeping. Based on whats discussed in this email in linux kernel. Before this release there was no free enterprise distribution of sle but after this release we can assume that leap 42. And now there is a good news for linux users that they fixed this leap second bug in the new 3. If your java applications suddenly started to use 100% cpu, youve hit java leap second bug actually its a bug in linux kernel, just java. Some of our customers asked how they should prepare for this years event to avoid any unexpected problems. Recently, a second iteration of this aka wsl2 is announced which brings a full featured linux kernel running in windows as well. Sure, its possible to manually download and install packages from a. Therefore, they should only be interpreted when an utc month end is in the. The kernel code that handles the leap second message from ntp is buggy. Leap second bug cripples linux servers at airlines, reddit. Settings like the background or timeouts are also changeable using grub customizer.
Impact of a positive leap second introduced in june. Ntp leap second warnings from the previous month seem to carry over into the first few minutes of the next utc month before they evaporate. The leap second bug hit just as the web was recovering from a major outage to amazon web services, an online operation that runs as much as 1 percent of the internet. The addition of a leap second to the coordinated universal time at midnight greenwich mean time last night appears to have caused site disruptions for a handful of popular web sites and software platforms. Ubuntu news the latest breaking news in the linux community. By downloading this software, you confirm that you accept the terms and conditions and are at least years old. A leap second causes linux server crashes and java. Get information on what the leap second bug is and how it may affect your. From the link above, i found the following comment by herton r. Leap second bug causes site, software crashes cnet. There are many different linux distributions available on the internet that cater to many different user types.
The leap second that was inserted on saturday night can cause permanent high cpu loads on linux computers. If your ubuntu machine listens to ntp and synchronizes time with the internet, the system will automatically adjust itself for the difference in time. Suse linux enterprise server 10 service pack 3 sles 10 sp3. Expect anomalies in reporting could be day off on scheduled reports if you take till 12. So thanks for posting the fix to the current leap second bug in the totally unrelated kernel bug that was fixed years ago.
The adjustment, which was made by international earth rotation and reference systems. Many of us remember the huge problems this caused back in 2012. A leap second is a onesecond adjustment that is occasionally applied to coordinated universal time utc, to accommodate the difference between precise time as measured by atomic clocks and imprecise observed solar time known as ut1 and which varies due to irregularities and longterm slowdown in the earths rotation. This, just with different numbers at the beginning, was also shown on my minimal 16. Probably not the case, but i wouldnt dismiss the option so quickly. Since we had a leap second in 2015 without any noticeable ill effects it seemed likely we wouldnt this time either. The developers said that the problem is easily solved by resetting the date or. Both individuals and teams can join ubuntu bug control.
555 616 1557 1421 374 683 833 861 1107 357 196 1119 208 13 110 353 162 1217 1475 455 183 874 1276 235 1226 552 679 1237 1343 275 932 1004 1395 1427