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LWN.net Weekly Edition for May 16, 2013
A look at the PyPy 2.0 release
PostgreSQL 9.3 beta: Federated databases and more
LWN.net Weekly Edition for May 9, 2013
(Nearly) full tickless operation in 3.10
This seems to be a good overview: http://landslidecoding.blogspot.com/2012/07/linuxs-leap-s...
There were reports of deadlocks with older kernels on, at least, Debian stable. Above page also points out reports of a "spinlock lockup" message whose cause remains unknown.
what about the deadlocks?
Posted Jul 3, 2012 17:10 UTC (Tue) by mgedmin (subscriber, #34497)
Posted Jul 3, 2012 23:59 UTC (Tue) by mcisely (subscriber, #2860)
I personally experienced the deadlock issue.
I spent 3+ unplanned hours at work last Saturday afternoon trying to figure out why our main server kept wedging itself every time it transitioned from single user to multi-user mode. I had no idea about the pending leap-second at the time and had been suspecting storm damage from the previous night. I finally clued-in when I found that the kernel hang would happen every time about 5-8 seconds after starting ntpd.
It was running Debian Lenny (yeah, old) with a Debian stock 2.6.32-5-amd64 kernel. Server architecture is a multicore Athlon setup.
The hangs started happening at about 7:43AM CDT. Once I figured out that trigger was ntp, I disabled that, then searched the web and found this:
Monday morning I enabled ntp again and started it - and as expected, no lockup...
Posted Jul 7, 2012 1:16 UTC (Sat) by BenHutchings (subscriber, #37955)
Posted Jul 7, 2012 1:22 UTC (Sat) by mcisely (subscriber, #2860)
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