Hello~~ I'm struggling to resolve a kernel panic problem during developing scheduler code. But I have not made any progress since I can not get any meaningful information from the serial log. When the panic occurred, always there is no call trace and only panic notification like following:
(XEN) (XEN) **************************************** (XEN) Panic on CPU 0: (XEN) cpu:20, vcpu:20 in csched_schedule(1891) (XEN) cpu:21, vcpu:21 in csched_schedule(1891) (XEN) cpumask_test_cpu(cpu, prv->in_cosched) in csched_schedule(1907) (XEN) cpumask_test_cpu(cpu, prv->in_cosched) in csched_schedule(1907) (XEN) cpumask_test_cpu(cpu, prv->in_cosched) in csched_schedule(1907) (XEN) cpumask_test_cpu(cpu, prv->in_cosched) in csched_schedule(1907) (XEN) FATAL PAGE FAULT (XEN) [error_code=0000] (XEN) Faulting linear address: ffff830078efcc98 (XEN) **************************************** (XEN) (XEN) Reboot in five seconds... I'm using Xen-4.5.0 on my server having 2 Intel Xeon E5-2620 v4 cpus, 128 GB RAM(16 GB DDR4 * 4) and 1 TB HDD and, using Ubuntu 14.04 LTS. Is there any method to make the call trace show up or when there is no call trace, please tell me from where I should start to debug. Thanks in advance and I wait for your comments.
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