Comment 11 for bug 1849419

From dmesg in comment #5:

kernel: [ 0.000000] Linux version 5.3.0-19-generic (buildd@lgw01-amd64-053) (gcc version 9.2.1 20191008 (Ubuntu 9.2.1-9ubuntu2)) #20-Ubuntu SMP Fri Oct 18 09:04:39 UTC 2019 (Ubuntu 5.3.0-19.20-generic 5.3.1)
...
kernel: [ 327.012856] cut[7266]: segfault at 0 ip 00007fe79323a1f6 sp 00007fffeb8c14f8 error 6 in libc-2.30.so[7fe79323a000+178000]
kernel: [ 327.012862] Code: fe ff ff 90 f3 0f 1e fa 68 19 00 00 00 f2 e9 21 fe ff ff 90 f3 0f 1e fa 68 18 00 00 00 f2 e9 11 fe ff ff 90 f3 0f 1e fa 68 05 <00> 00 00 f2 e9 01 fe ff ff 90 f3 0f 1e fa 68 17 00 00 00 f2 e9 f1
kernel: [ 327.012928] sed[7265]: segfault at 0 ip 00007f2c0794b506 sp 00007ffe7da24728 error 6 in libpthread-2.30.so[7f2c0794b000+11000]
kernel: [ 327.012933] Code: fb ff ff 90 f3 0f 1e fa 68 4b 00 00 00 f2 e9 31 fb ff ff 90 f3 0f 1e fa 68 4c 00 00 00 f2 e9 21 fb ff ff 90 f3 0f 1e fa 68 4d <00> 00 00 f2 e9 11 fb ff ff 90 f3 0f 1e fa 68 4e 00 00 00 f2 e9 01
kernel: [ 327.012944] ifstat[7263]: segfault at 0 ip 00007f7e3db93506 sp 00007ffd4cacef28 error 6 in libpthread-2.30.so[7f7e3db93000+11000]
kernel: [ 327.012948] Code: fb ff ff 90 f3 0f 1e fa 68 4b 00 00 00 f2 e9 31 fb ff ff 90 f3 0f 1e fa 68 4c 00 00 00 f2 e9 21 fb ff ff 90 f3 0f 1e fa 68 4d <00> 00 00 f2 e9 11 fb ff ff 90 f3 0f 1e fa 68 4e 00 00 00 f2 e9 01
....

The kernel boots fine. At first glance it seems to me somehow you get either corrupted filesystem or corrupted binaries installed. With some more googling, it could also be bad memory module installed[1]. Could you try removing/replacing them?

[1]: https://askubuntu.com/questions/975828/how-can-i-find-the-cause-of-the-segfaults-im-receiving-from-a-fresh-17-10-insta?rq=1