Comment 11 for bug 1275210

To add some later findings, it turned out that:
(1) The bug was reintroduced in version 8.3;
(2) It affects only some CPU architectures.
I tested version "Debian 8.3.1-1" on two 64-bit machines with the same version of Debian (Sid), one with PowerPC, and the other with SPARC. The bug shows up only on the SPARC machine, not the PowerPC one. I then built the generic version 8.3.1 on a 64-bit ARM machine. The bug didn't show up there. And then I built it on a 64-bit MIPS (big endian) machine, where the bug did show up. Repeated this with version 8.3. The bug showed up again. When I built the generic version 8.2.1 on the same MIPS machine, the bug didn't show up. A "diff -u gdb-8.2.1/gdb/tui gdb-8.3/gdb/tui" shows a lot of changes made in the TUI code of version 8.3 to add some colourisation to the TUI, and the bug was probably introduced during this process. Sorry that I can't help more to isolate the bug. But it's quite strange that it manifests itself only on x86-64, SPARC and MIPS, but not on ARM and PowerPC. I suppose that because of this, it will be rather hard to pinpoint.