Xen + Gentoo-linux = What else do you need

Question

linux

Good afternoon dear experts.

How many times here I write words of sorrow and joy. But he did not overcome this gsen.

Once again, I want to ask what it is:

Apr 16 11:00:02 test kernel: [1449249.557240] hrtimer: interrupt took 19944419 ns
Apr 18 17:52:03 test kernel: [1646777.729973] INFO: rcu_sched detected stalls on CPUs/tasks: { 11} (detected by 6, t=60002 jiffies)
Apr 18 17:52:03 test kernel: [1646777.729989] Pid: 0, comm: swapper/6 Not tainted 3.2.1-gentoo-r2 #5
Apr 18 17:52:03 test kernel: [1646777.729993] Call Trace:
Apr 18 17:52:03 test kernel: [1646777.729996] [] __rcu_pending+0x3b4/0x410
Apr 18 17:52:03 test kernel: [1646777.730015] [] ? tick_nohz_handler+0xf0/0xf0
Apr 18 17:52:03 test kernel: [1646777.730021] [] rcu_check_callbacks+0x75/0x1b0
Apr 18 17:52:03 test kernel: [1646777.730030] [] update_process_times+0x43/0x80
Apr 18 17:52:03 test kernel: [1646777.730036] [] tick_sched_timer+0x5f/0xb0
Apr 18 17:52:03 test kernel: [1646777.730043] [] __run_hrtimer+0x7f/0x1d0
Apr 18 17:52:03 test kernel: [1646777.730051] [] ? xen_spin_lock+0xa5/0x110
Apr 18 17:52:03 test kernel: [1646777.730057] [] hrtimer_interrupt+0xd2/0x210
Apr 18 17:52:03 test kernel: [1646777.730064] [] xen_timer_interrupt+0x2f/0x1b0
Apr 18 17:52:03 test kernel: [1646777.730071] [] ? _raw_spin_lock_irq+0x10/0x20
Apr 18 17:52:03 test kernel: [1646777.730077] [] ? run_timer_softirq+0x1e9/0x3a0
Apr 18 17:52:03 test kernel: [1646777.730084] [] handle_irq_event_percpu+0x5d/0x210
Apr 18 17:52:03 test kernel: [1646777.730090] [] handle_percpu_irq+0x43/0x60
Apr 18 17:52:03 test kernel: [1646777.730097] [] __xen_evtchn_do_upcall+0x19d/0x260
Apr 18 17:52:03 test kernel: [1646777.730103] [] xen_evtchn_do_upcall+0x2a/0x40
Apr 18 17:52:03 test kernel: [1646777.730110] [] xen_do_hypervisor_callback+0x1e/0x30
Apr 18 17:52:03 test kernel: [1646777.730113] [] ? hypercall_page+0x3aa/0x1000
Apr 18 17:52:03 test kernel: [1646777.730124] [] ? hypercall_page+0x3aa/0x1000
Apr 18 17:52:03 test kernel: [1646777.730130] [] ? xen_safe_halt+0x10/0x20
Apr 18 17:52:03 test kernel: [1646777.730136] [] ? default_idle+0x58/0x180
Apr 18 17:52:03 test kernel: [1646777.730142] [] ? cpu_idle+0x86/0xc0
Apr 18 17:52:03 test kernel: [1646777.730148] [] ? xen_irq_enable_direct_reloc+0x4/0x4
Apr 18 17:52:03 test kernel: [1646777.730155] [] ? cpu_bringup_and_idle+0xe/0x10
Apr 18 17:52:23 test kernel: [1646798.224974] INFO: rcu_bh detected stalls on CPUs/tasks: { 11} (detected by 7, t=60002 jiffies)
Apr 18 17:52:23 test kernel: [1646798.224992] Pid: 0, comm: swapper/7 Not tainted 3.2.1-gentoo-r2 #5


Answer 1

Just out of curiosity, why XEN and not KVM?
And yes, there are not enough kernel configs and a more detailed description.