Please see the following kernel bug report which includes some details of my system configuration and steps to reproduce.
http://bugzilla.kernel.org/show_bug.cgi?id=11527... The problem appears to be related to interrupt handling (and possibly CPU frequency power management) on multi-core AMD64 CPUs and NVIDIA drivers. It occurs over multiple releases of the kernel and the video drivers, different (ADM64 multi-core) CPUs, different motherboards, and different NVIDIA chip-sets. It appears to effect a quite a large number of people. Common denominators is ADM64, multi-core, NVIDIA. Easiest way to diagnose the problem, is that the system will not freeze with kernel boot parameter MAXCPUS=1. Some people have found other ways around the problem by restricting interrupt handling to the first core. The freeze can be easily provoked using an Atheros chipset 802.11n network card and the ath9k driver and heavy network activity.... running something like a bittorrent client causes plenty of traffic, interrupts, and freezes the system in seconds... however it also occurs in other circumstance. Limiting the system to a single core avoids all freezes. -- gutsy amd64 freeze crash lockup https://bugs.launchpad.net/bugs/157777 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
