Andy Lutomirski <luto@xxxxxxxxxx> writes: > Is there a plan to deal with: > > /* > * This function has some ABI oddities. > * > * A 32-bit ptracer probably expects that writing FS or GS will change > * FSBASE or GSBASE respectively. In the absence of FSGSBASE support, > * this code indeed has that effect. When FSGSBASE is added, this > * will require a special case. > * > * For existing 64-bit ptracers, writing FS or GS *also* currently > * changes the base if the selector is nonzero the next time the task > * is run. This behavior may? not be needed, and trying to preserve it > * when FSGSBASE is added would be complicated at best. > */ > > in arch/x86/kernel/ptrace.c? Not that I'm aware of.
