TCP cubic registered NET: Registered protocol family 1 Clocksource tsc unstable (delta = -290820478 ns) ( softirq-timer/0-5 |#0): new 57275535 us maximum-latency critical section. => started at timestamp 355041359: => ended at timestamp 20: [] show_trace_log_lvl+0x35/0x60 [] show_trace+0x2c/0x30 [] dump_stack+0x28/0x30 [] check_critical_timing+0x321/0x3c0 [] trace_hardirqs_on+0xb1/0xd0 [] run_timer_softirq+0x96/0x4a0 [] ksoftirqd+0x100/0x1f0 [] kthread+0x42/0x70 [] kernel_thread_helper+0x7/0x10 ======================= => dump-end timestamp 703 Using IPI Shortcut mode ***************************************************************************** * * * REMINDER, the following debugging options are turned on in your .config: * * * * CONFIG_CRITICAL_PREEMPT_TIMING * * CONFIG_CRITICAL_IRQSOFF_TIMING * * CONFIG_FUNCTION_TRACE * * * * they may increase runtime overhead and latencies. * * * ***************************************************************************** Freeing unused kernel memory: 176k freed Red Hat nash version 4.2.17mdk starting Loading cs5530.ko module