I am once again open to the possibility that this may be temperature related. Mea Culpa.
It's getting hot at work so I got a really small desk fan, and it is pointing on to the machine and myself. While it is running, the machine runs cool and I have had no lockups at all. A bit of experimentation at home gives similar results - without a fan, it will lock up a couple of times per day. With one blowing straight at the machine, it runs fine. This is confusing. As I wrote above, logging of temperature has shown lockups even when the temperature is still somewhere below the warning zone at 88 degrees and far below the critical at 130. This gives rise to two questions: * It is not conceivable that the machine would jump from about 85 degrees to 130 within about 10-20 seconds when it is not heavily loaded. If it is temperature related, it must be the 88 degree level that is causing trouble, alternatively some other kernel-specific temperature level. * Normally it seems the machine does throttle itself once it reaches 88 degrees. Is there some in-kernel temperature monitoring that might respond in a bad way at that level and freeze user processes? It is worth noting that during a freeze the machine is running hotter, not cooler, as if it's busy-looping or something. My temperature trip_points looks like this: critical (S5): 130 C passive: 88 C: tc1=0 tc2=3 tsp=40 devices=CPU0 CPU1 What do the tc and tsp parameters mean and would there be some point in tweaking this subsystem somehow? -- Hardy kernel causes overheating https://bugs.launchpad.net/bugs/223081 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
