https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83638
John David Anglin <danglin at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |WAITING Last reconfirmed| |2018-03-24 CC| |danglin at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from John David Anglin <danglin at gcc dot gnu.org> --- I believe the test results are correct. The kernel locks are not interruptible and this is sufficient for the implementation to be lock free. The pa-risc lock implementation handles objects up to 8 bytes in size. The size of a3 is 12 bytes. If z is removed from a3, the test passes on the 64-bit kernel that I used to test the example.