CentOS host rebooting when unplug/plug AC

Issues related to hardware problems
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CentOS host rebooting when unplug/plug AC

Post by chris90 » 2019/11/27 17:59:23

I have a Lenovo L580 laptop running CentOS 7. Most of the time (but not always) that I unplug or plug the laptop to the AC, it reboots.
The messages can be seen in this picture that I took as the system reboots:

Here is also a brief overview of the hardware

Code: Select all

cb@centos ~ $ lscpu
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                8
On-line CPU(s) list:   0-7
Thread(s) per core:    2
Core(s) per socket:    4
Socket(s):             1
NUMA node(s):          1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 142
Model name:            Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
Stepping:              10
CPU MHz:               900.024
CPU max MHz:           4000.0000
CPU min MHz:           400.0000
BogoMIPS:              3984.00
Virtualization:        VT-x
L1d cache:             32K
L1i cache:             32K
L2 cache:              256K
L3 cache:              8192K
NUMA node0 CPU(s):     0-7
Flags:                 fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch epb invpcid_single intel_pt ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt xsaveopt xsavec xgetbv1 dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp md_clear spec_ctrl intel_stibp flush_l1d

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Re: CentOS host rebooting when unplug/plug AC

Post by TrevorH » 2019/11/27 20:42:16

Something doesn't smell right with that sequence of events. According to your screenshot it had crashed, taken a kdump and restarted the system within 5.395 seconds of booting up?
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Re: CentOS host rebooting when unplug/plug AC

Post by chris90 » 2019/11/28 09:27:10

I agree that it is strange. However, the timestamps are always the same, across different rebooting events.

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