Ubuntu
glibc package

  1. Bug #2001932
  2. Comment #1

Comment 1 for bug 2001932

Revision history for this message
In , Dpmendenhall (dpmendenhall) wrote :

Created attachment 12507
report

When the two strings being compared are at the end of their pages, __strncmp_avx2 will fall back to a one-byte-at-a-time loop named "cross_page_loop". This loop is incorrect if the length of the comparison exactly matches VEC_SIZE*4, which is 128 on my machine.

Full report in attached pdf.