Tracing guest process

2015-08-03 Thread Oscar Garcia
Hello, I have a problem where a vcpu is spinning over a EXIT_REASON_PAUSE_INSTRUCTION forever. This VMEXIT is caused by a spin-lock. The entire gust system blocks. As my code has not spin-locks, probably it is invoking a system call that invokes a spin-lock. I'm interested in knowing the

VMEXIT and Threads

2014-10-05 Thread Oscar Garcia
Hello, I have a question about parallel vmexit calls, I would appreciate any answer or suggestion. I have a host with debian 7 (intel i7 - RAM 8GB), the guest OS is also debian. I am running a program with some threads, every thread makes a vmexit call. Also every thread runs in a isolated

New improvements on KVM

2014-06-23 Thread Oscar Garcia
Hello, I am planning to study a phd for the next year, and I would like to spend part on my time studying KVM code in order to suggest new improvements. I know that this mail list is used by experts related to KVM, I would like to ask you, what improvements are needed in KVM in order to