Leap second causing Linux server crashes?

Re:Leap second causing Linux server crashes? by arohner on Sunday July 01, 2012 @12:09AM (#4183813)

Stupid question: Why was this not caught? Seems pretty easy to test. Just set the clock to today (or any day with a leap second), and watch what happens.

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Re:Leap second causing Linux server crashes? by duskwuff on Sunday July 01, 2012 @12:51AM (#4183888)

> Just set the clock to today (or any day with a leap second), and watch what happens.

That won't work. The bug is only triggered when an upstream NTP server reports that a leap second was scheduled. Since leap seconds aren't predictable (and aren't even scheduled very far in advance), just setting the time back to the date of a previous leap second won't do anything.

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Re:Leap second causing Linux server crashes? by eadvgf on Sunday July 01, 2012 @02:43AM (#4184036)

True, but the question still stands, since you can still test it by just telling the kernel to insert a (fake) leap second.

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Re:Leap second causing Linux server crashes? by Someone on Sunday July 01, 2012 @03:59AM (#4184187)

It also should not be that hard to provide your own upstream ntp server, and have that generate leap seconds at will. Both machines could be VMs, too.

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