20.12.2013 19:05, Sebastian Andrzej Siewior пишет: > On 12/20/2013 03:57 PM, Pavel Vasilyev wrote: >> >> Same bug if attach to ehci hub. >> >> ksoftird/0 process of loading the CPU upto 100% Sometimes process >> irq17/0 - ehci_hcd or xhci_hcd. After taking the camera out of the >> socket, the load does not fall, keyboard and console blocked > > Okay, but this problem is unique to your webcam. Keyboard & mice to > work as usual? > Could please provide me the addr2line either for the ehci or xhci? I've > been browsing to the code and I didn't see anything obvious. > Too many bugs, too many computers ... 3.12.5-rt7 work ONLY in UP-mode!!! cmdline: nosmp maxcpus=1 In SMP mode, problems arise in different places on different computers. On Intel Atom - USB, webcam and console. On the Opteron 285 system does not boot, can't mount devtmpfs, XFS partitions ... I can not get to catch the error and find a place neither in debug mode or in normal. Because everything is frozen completely, and get to the console or logs is not possible. I described one situation where had run top and see that the process ksoftirqd/0 use CPU upto 100% P.S. 3.12.5-rt7 still work Basic-RT mode. -- Pavel. -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html