I think this is probably not an ARM specific issue. And if you run the ./a.out in a non-nfs directory as a normal user, you will get coredump file. But if you try the same in a nfs mounted directory, it won't generate coredump file due to some potential security issues which i found in some NFS upstream developer's discussion.
So if you wanna get coredump file in an NFS mounted directory, you have to run the ./a.out as root "sudo ./a.out". Then you will get the coredump file in NFS directory. This is also true for both X86 PC and ARM. -Bryan ** Changed in: linux (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1034340 Title: ARM coredumps zero-length on NFS mount To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1034340/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs