Become a fan of Slashdot on Facebook

 



Forgot your password?
typodupeerror

+ - Reboot Your Dreamliner Every 248 Days To Avoid Integer Overflow ->

Submitted by mikejuk
mikejuk writes: You may be used to rebooting a server every so often to ensure that it doesn't crash because of some resource problem, but what about a modern jet airliner like the Boeing 787?
A recent directive (https://www.federalregister.gov/articles/2015/05/01/2015-10066/airworthiness-directives-the-boeing-company-airplanes) from the US Federal Aviation Administration reminds us that software in planes is about as trustworth as on the desktop.
To quote:
"This condition is caused by a software counter internal to the GCUs (Generator Control Units) that will overflow after 248 days of continuous power. We are issuing this AD to prevent loss of all AC electrical power, which could result in loss of control of the airplane."
A simple guess suggests the the problem is a signed 32-bit overflow as 2^31 is the number of seconds in 248 days multiplied by 100, i.e. a 32 bit signed counter in hundredths of of a second.
Until there is a patch for the problem all Dreamliners have to be rebooted before the 248 day period is up. Apparently if the worse does happen and the GCUs overflow and switch off the power then the plane should have enough backup power from a lithium-ion battery for about 6 seconds while a ram air turbine deploys for emergency power generation. So, with luck, this isn't a bug that could cause planes to fall out of the sky.
It is estimated that the Airbus A380, comparable in complexity to the Dreamliner, has more than 100 million lines of code.

Link to Original Source

+ - Unnoticed For Years, Malware Turned Linux Servers Into Spamming Machines

Submitted by Anonymous Coward
An anonymous reader writes: For over 5 years, and perhaps even longer, servers around the world running Linux and FreeBSD operating systems have been targeted by an individual or group that compromised them via a backdoor Trojan, then made them send out spam, ESET researchers have found.

What's more, it seems that the spammers are connected with a software company called Yellsoft, which sells DirectMailer, a "system for automated e-mail distribution" that allows users to send out anonymous email in bulk.

Comment: Re:Interesting, but... (Score 1) 8

by quippe (#49594141) Attached to: Cease and Desist Notice - Neuoogle
Removing from the android store would be legit, they provide the service after all; but a push notification service, to me, does not sound any more similar to a search engine than a meeting scheduler to google calendar (hint: doodle), so demanding to cease the domain name, or change the name of his software, again, is pure BS, microsoft '90s style.

+ - OpenBSD 5.7 Released

Submitted by Anonymous Coward
An anonymous reader writes: Just as per the schedule, OpenBSD 5.7 was released today, May 1, 2015. The theme of the 5.7 release is "Source Fish". There are some big changes in OpenBSD 5.7. The nginx httpd server removed from base in favor of an internally developed httpd server in 5.7. BIND (named) from base in 5.7 in favor of nsd(8) (authoritative DNS) and unbound(8) (recursive resolver). Packages will exist for BIND and nginx. This version include a new control utility, rcctl(8), for managing daemons/services, USB 3 support and more. See a detailed log of changes between the 5.6 and 5.7 releases for more information. If you already have an OpenBSD 5.6 system, and do not want to reinstall, upgrade instructions and advice can be found in the Upgrade Guide. You can order the 5.7 CD set from the new OpenBSD Store and support the project.

+ - How an open standard API could revolutionize banking->

Submitted by Anonymous Coward
An anonymous reader writes: Open bank data will give us the freedom to access all banks in real time and from a single view, automatically calculating the best deals in complete transparency, which will be a significant step forward for social good and give people more control over their finances. Meanwhile, financial tech incubators, accelerators, and startups are creating a more experienced talent pool of developers ready to act upon these newly available assets.
Link to Original Source

+ - Progress M-27M cargo mission to ISS out of control

Submitted by quippe
quippe writes: Many sources report that the Russian spacecraft, launched successfully from Russia's Baikonur cosmodrome in Kazakhstan earlier Tuesday, is in big trouble now after having a glitch shortly after liftoff. There is a video on youtube (credit: NASA) of the space ship spinning on itself, it doesn't look any good. Current speculation points to a bigger than expected lift by the third-stage, based on the fact that apogee is 20km higher than planned. It seems it is not posing any threat to the ISS at the moment.

Comment: Re:Correct (Score 1) 209

by quippe (#43155207) Attached to: France Demands Skype Register As a Telco

Because both ends of the landline call need to be regulated. It has nothing to do with the computer aspect of it.

And aren't all you guys cheering on regulation the same people who would cry murder if they were trying to regulate the Internet?

You are confusing regulation on the content (free speech) with regulation of the transport (access to communication).

Microsoft

+ - Microsoft Azure Cloud Storage Suffers Major Outage Over Expired SSL Certificate->

Submitted by Trailrunner7
Trailrunner7 writes: Microsoft's public cloud storage service suffered a global outage due to a lapsed security certificate.

Beginning around 4 p.m. EST, developers and other Azure customers began being blocked from accessing files.

"Storage is currently experiencing a worldwide outage impacting HTTPS operations (SSL traffic) due to an expired certificate," according to a message on the Windows Azure Service Dashboard that remained posted Friday night. "HTTP traffic is not impacted. We are validating the recovery options before implementing them. Further updates will be published to keep you apprised of the situation. We apologize for any inconvenience this causes our customers."

Link to Original Source
Your Rights Online

+ - Whitehouse.gov petition to make cell phone unlocking legal needs 15K petitions->

Submitted by namalc
namalc writes: Recently the Librarian of Congress declared cell phone locking to be illegal for phones sold after Jan 26. Now, a whitehouse.gov petition https://petitions.whitehouse.gov/petition/make-unlocking-cell-phones-legal is coming close to the number of signatures needed to get a formal response from the Whitehouse.
Link to Original Source

Computer Science is the only discipline in which we view adding a new wing to a building as being maintenance -- Jim Horning

Working...