I’ve been running Microsoft Teams inside a LXC container on Ubuntu 16.04 (with XFCE) lately and very recently I’ve had two occasions where my desktop stopped functioning normally.
On reviewing /var/log/syslog I’ve seen entries like the following:
Jul 30 08:00:59 localhost kernel: [5904607.094017] traps: Watchdog[5428] trap invalid opcode ip:55aba1d9d724 sp:7f3836ffcac0 error:0 in teams[55aba0273000+4bf6000]
.. and..
Aug 1 08:17:02 localhost kernel: [6078368.525104] traps: Watchdog[20595] trap invalid opcode ip:55eaeced5724 sp:7f42137fdac0 error:0 in teams[55eaeb3ab000+4bf6000]
This is on an Intel Xeon CPU:
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 60
model name : Intel(R) Xeon(R) CPU E3-1226 v3 @ 3.30GHz
stepping : 3
microcode : 0x28
cpu MHz : 3366.000
cache size : 8192 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 4
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
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 arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx 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 epb invpcid_single ssbd ibrs ibpb stibp kaiser tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid xsaveopt dtherm ida arat pln pts md_clear flush_l1d
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs itlb_multihit srbds
bogomips : 6584.57
clflush size : 64
cache_alignment : 64
address sizes : 39 bits physical, 48 bits virtual
power management:
I might have to stop using Microsoft Teams on Linux.
newspaint 
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