mirekphd edited a comment on issue #11911: Illegal instruction (core dumped) URL: https://github.com/apache/incubator-mxnet/issues/11911#issuecomment-427669670 You can repen the issue, because it is more general and the explanation given must be different (the specified CPU instruction set does not prevent it from occuring, but downgrading version to 1.2.0 does). More info I keep getting this error ("Illegal instruction (core dumped)") in python, or a nondescript kernel restart (with a core dump) in Jupyter Notebook for a different CUDA build (mxnet-cu90 running on nvidia/cuda:9.0-cudnn7-devel image), while I'm not getting it for the originally reported build (mxnet-cu80). Downgrading library version from 1.3.0.post0 to 1.3.0 or 1.2.1 did not help, but 1.2.0 worked (can be loaded). There are no NVIDIA drivers installed in my build server's host system (which indeed prevents some other GPU-enabled libs loading, notably CNTK and Tensorflow), but CPU does support SSE 4.2 instructions: ``` [root@mx01 ml-gpu-py36-cuda90]# cat /proc/cpuinfo | grep flags flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon rep_good nopl eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 **sse4_2** x2apic popcnt tsc_deadline_timer aes xsave avx hypervisor lahf_lm tsc_adjust xsaveopt ```
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