bug#54155: -f switch fails with large files on 3.x branch

[Paul Eggert]

On 2/24/22 22:45, Marco Marsala wrote:

grep -F -f b.txt a.txt

returns just first occurrence with grep 3.10 (mingw64, 4GB RAM machine) 
if files are bigger (b.txt ~ 1 MB, a.txt ~ 200 MB), works as expected 
with smaller files.

Could you please send this bug report to whoever maintains the mingw64 
port that you're using? (I don't know who that is; they likely don't 
subscribe to this bug report address.) Thanks.