gpt2tc -- instrumented binary segfaults
Noticed a peculiar segfault in a binary that successfully instrumented (default zafl configuration): https://bellard.org/nncp/gpt2tc.html.
Instructions for instrumenting:
sudo apt install curl
wget https://bellard.org/nncp/gpt2tc-2020-06-13.tar.gz
tar -xf gpt2tc-2020-06-13.tar.gz gpt2tc-2020-06-13
cd gpt2tc-2020-06-13
wget https://bellard.org/nncp/gpt2tc-117M.tar.gz
tar -xf gpt2tc-117M.tar.gz gpt2_117M.bin
zafl.sh gpt2tc gpt2tc_zafl -t tmp.gpt2tc.zafl
Reproducing the bug (the latter command should segfault):
./gpt2tc g text
./gpt2tc_zafl g text
Any ideas? Maybe there's something here that we can use for the paper.
Edited by Stefan Nagy