This is a fresh install of 1.8.2. Julia 1.7.3 works fine and is stable.
(@v1.8) pkg> add LinearAlgebra
signal (11): Segmentation fault
in expression starting at none:0
__pthread_mutex_init at /usr/lib/x86_64-linux-gnu/libc.so.6 (unknown line)
unknown function (ip: 0x7f809974c203)
mbedtls_entropy_init at /usr/lib/x86_64-linux-gnu/libmbedcrypto.so.7 (unknown line)
mbed_connect_common at /opt/local/stow/julia-1.8.2/bin/../lib/julia/libcurl.so (unknown line)
Curl_ssl_connect_nonblocking at /opt/local/stow/julia-1.8.2/bin/../lib/julia/libcurl.so (unknown line)
https_connecting at /opt/local/stow/julia-1.8.2/bin/../lib/julia/libcurl.so (unknown line)
Curl_http_connect at /opt/local/stow/julia-1.8.2/bin/../lib/julia/libcurl.so (unknown line)
multi_runsingle at /opt/local/stow/julia-1.8.2/bin/../lib/julia/libcurl.so (unknown line)
multi_socket at /opt/local/stow/julia-1.8.2/bin/../lib/julia/libcurl.so (unknown line)
curl_multi_socket_action at /opt/local/stow/julia-1.8.2/bin/../lib/julia/libcurl.so (unknown line)
curl_multi_socket_action at /cache/build/default-amdci4-6/julialang/julia-release-1-dot-8/usr/share/julia/stdlib/v1.8/Downloads/src/Curl/Curl.jl:48 [inlined]
curl_multi_socket_action at /cache/build/default-amdci4-6/julialang/julia-release-1-dot-8/usr/share/julia/stdlib/v1.8/Downloads/src/Curl/Curl.jl:56 [inlined]
macro expansion at /cache/build/default-amdci4-6/julialang/julia-release-1-dot-8/usr/share/julia/stdlib/v1.8/Downloads/src/Curl/utils.jl:28 [inlined]
#41 at /cache/build/default-amdci4-6/julialang/julia-release-1-dot-8/usr/share/julia/stdlib/v1.8/Downloads/src/Curl/Multi.jl:176
lock at ./lock.jl:185
macro expansion at /cache/build/default-amdci4-6/julialang/julia-release-1-dot-8/usr/share/julia/stdlib/v1.8/Downloads/src/Curl/Multi.jl:174 [inlined]
#40 at ./task.jl:484
jfptr_YY.40_66970.clone_1 at /opt/local/stow/julia-1.8.2/lib/julia/sys.so (unknown line)
_jl_invoke at /cache/build/default-amdci4-6/julialang/julia-release-1-dot-8/src/gf.c:2367 [inlined]
ijl_apply_generic at /cache/build/default-amdci4-6/julialang/julia-release-1-dot-8/src/gf.c:2549
jl_apply at /cache/build/default-amdci4-6/julialang/julia-release-1-dot-8/src/julia.h:1839 [inlined]
start_task at /cache/build/default-amdci4-6/julialang/julia-release-1-dot-8/src/task.c:931
Allocations: 1863129 (Pool: 1861991; Big: 1138); GC: 3
Segmentation fault (core dumped)