It must be a driver hanging problem. Like I told you before I know about the mei driver causing freezes. Please check if this driver is loaded in your system. You can use lsmod | grep mei for this. Then remove the driver with sudo rmmod mei. The same goes for mei_me if you have it. If you don't have the mei driver loaded it might be another driver. For those who experience this freezes it would be nice to share their lsmod outputs to find similarities. The best would if those ones who don't experience that bug would post their results too. It should be only be a matter of time to figure out the causing issue.
On 29.08.2013 23:34, John Hupp wrote:
> On 8/29/2013 4:20 PM, Gerry wrote: >> On 08/29/2013 01:36 PM, Lars Noodén wrote: >>> For the past 4 or 5 days Lubuntu has been freezing up on me at least >>> twice a day. The symptoms are that everything appears to stop working. >>> Even the mouse pointer won't move and I cannot switch to a console >>> (ctrl-alt-f1, etc). >>> >>> There's usually nothing in the system log at all but this last time I >>> get a bunch of nulls: >>> >>> Aug 29 13:17:01 mini2 CRON[3155]: (root) CMD ( cd / && run-parts >>> --report /etc/cron.hourly) >>> Aug 29 14:17:02 mini2 CRON[3291]: (root) CMD ( cd / && run-parts >>> --report /etc/cron.hourly) >>> ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^ @^@^ >>> >>> @^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ >>> >>> The system crashed at 14:22, but there is nothing there in the log until >>> the (re)boot stage. >>> >>> I cannot get the system to freeze up on demand nor does it appear to be >>> connected to any particular application. Yet it has been happening a >>> few times per day. This is very unusual and I have had no similar >>> problems previously. How can I gather more data on this the next time >>> it happens? >>> >>> Regards, >>> /Lars >>> >> I also have this problem. I switched to Xubu 12.04 LTS to evade the >> 'the freeze' but since I upgraded to 12.04.3 'the freeze' returns. >> >> >> > > If someone with the problem wants to pursue the prospect that this is a > kernel issue, I think the definitive starting point is the procedure at > https://wiki.ubuntu.com/Kernel/KernelBisection > > Some of that looks pretty scary, but it seems to be the case that > execution is within the reach of end-users like me. The beauty of it is > that the procedure can be expected to eventually identify the problem > within a small chunk of code, which makes the developers' job of fixing > the problem much easier. > > I'm learning how to do this for the first time myself as I continue to > pursue the root of a Flash video display problem that I posted about > recently. I don't know of a way to get the kernel to freeze on demand. It happens irregularly, sometimes nearly a whole day in between failures. Other times a few hours. I don't think yet that I can tie it to any applications I have running. I have very few open already and it does not seem to matter which one is on top. That could make the bisection process take weeks. Regards, /Lars -- Lubuntu-users mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/lubuntu-users | ||
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