LUN Scan Trigger Server Reboot (Doc ID 2271391.1)

Last updated on JUNE 22, 2017

Applies to:

Linux OS - Version Oracle Linux 7.0 and later
Linux x86-64

Symptoms

A LUN scan after adding a new LUN is triggering a reboot with kernel panic in OL 7.x server which is part of RAC

The panic looks like the following:

PID: 0 TASK: ffff880c3c2b38e0 CPU: 18 COMMAND: "swapper/18"
#0 [ffff880c4f325b28] machine_kexec at ffffffff81041191
#1 [ffff880c4f325b80] crash_kexec at ffffffff810cf2b2
#2 [ffff880c4f325c50] panic at ffffffff815db7f1
#3 [ffff880c4f325cd0] watchdog_overflow_callback at ffffffff810f6872
#4 [ffff880c4f325ce0] __perf_event_overflow at ffffffff811377b1
#5 [ffff880c4f325d60] perf_event_overflow at ffffffff81138374

#6 [ffff880c4f325d70] intel_pmu_handle_irq at ffffffff810292bd
#7 [ffff880c4f325e60] perf_event_nmi_handler at ffffffff815eb88b
#8 [ffff880c4f325e80] nmi_handle at ffffffff815eafd9
#9 [ffff880c4f325ec8] do_nmi at ffffffff815eb0f0
#10 [ffff880c4f325ef0] end_repeat_nmi at ffffffff815ea431
[exception RIP: cfb_imageblit+1235]
RIP: ffffffff8131ebb3 RSP: ffff880c4f3238a8 RFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffff880c4f323918 R8: ffffffff816541d0 R9: ffffc9001d077f7c
R10: 0000000000000003 R11: 0000000000000000 R12: ffff880c39ef0d3f
R13: ffff880c39ef0d3d R14: ffffc9001d077f80 R15: ffffc9001d077f50
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
--- ---

#11 [ffff880c4f3238a8] cfb_imageblit at ffffffff8131ebb3
#12 [ffff880c4f3238c8] __enqueue_entity at ffffffff8109b8c8
#13 [ffff880c4f323920] bit_putcs at ffffffff813182c7
#14 [ffff880c4f323a38] fbcon_putcs at ffffffff81312fd8
#15 [ffff880c4f323aa0] fbcon_redraw at ffffffff81313327
#16 [ffff880c4f323b10] fbcon_scroll at ffffffff8131479b
#17 [ffff880c4f323b80] scrup at ffffffff813848ac
#18 [ffff880c4f323bb0] lf at ffffffff81384960
#19 [ffff880c4f323be0] vt_console_print at ffffffff81385b72
#20 [ffff880c4f323c48] call_console_drivers.constprop.15 at ffffffff8105f0d1
#21 [ffff880c4f323c70] console_unlock at ffffffff8106028f
#22 [ffff880c4f323ca8] vprintk_emit at ffffffff81060586
#23 [ffff880c4f323d18] printk at ffffffff815db9ff
#24 [ffff880c4f323d78] scsi_show_extd_sense at ffffffff813d56b8

#25 [ffff880c4f323db0] scsi_print_sense at ffffffff813d5ccd
#26 [ffff880c4f323de0] scsi_io_completion at ffffffff813dd187
#27 [ffff880c4f323e48] scsi_finish_command at ffffffff813d22e3
#28 [ffff880c4f323e78] scsi_softirq_done at ffffffff813dcb3f
#29 [ffff880c4f323ea8] blk_done_softirq at ffffffff81299940
#30 [ffff880c4f323ee8] __do_softirq at ffffffff81067047
#31 [ffff880c4f323f58] call_softirq at ffffffff815f435c
#32 [ffff880c4f323f70] do_softirq at ffffffff81014cf5
#33 [ffff880c4f323f88] irq_exit at ffffffff810673e5
#34 [ffff880c4f323fa0] smp_call_function_single_interrupt at ffffffff81038aa5

#35 [ffff880c4f323fb0] call_function_single_interrupt at ffffffff815f3b1d
--- ---
#36 [ffff880c3c2c5de8] call_function_single_interrupt at ffffffff815f3b1d
[exception RIP: native_safe_halt+6]
RIP: ffffffff81046346 RSP: ffff880c3c2c5e98 RFLAGS: 00000286
RAX: 00000000ffffffed RBX: 0000000000000012 RCX: 0100000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000046
RBP: ffff880c3c2c5e98 R8: 0000000000000000 R9: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 000000000085f1c8
R13: ffff880c4f32d9e0 R14: f4b967a5ae7adb6f R15: ffff880c4f32d780
ORIG_RAX: ffffffffffffff04 CS: 0010 SS: 0018
#37 [ffff880c3c2c5ea0] default_idle at ffffffff8101b39f
#38 [ffff880c3c2c5ec0] arch_cpu_idle at ffffffff8101bc96
#39 [ffff880c3c2c5ed0] cpu_startup_entry at ffffffff810b47e5
#40 [ffff880c3c2c5f30] start_secondary at ffffffff815d028e

Cause

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