Re: [PATCH] x86: fix a bug introduced by "allocate full pt_regs" commit

On Thu, Feb 26, 2015 at 6:08 AM, Denys Vlasenko wrote: > If syscall_trace_enter_phase1 returns 0, > code restores %rax from pt_regs->ax, but should restore it from > pt_regs->orig_ax. > > The bug crept in because LOAD_ARGS macro was very sublty different > from RESTORE_ARGS, it had only two callsi

[PATCH] x86: fix a bug introduced by "allocate full pt_regs" commit

If syscall_trace_enter_phase1 returns 0, code restores %rax from pt_regs->ax, but should restore it from pt_regs->orig_ax. The bug crept in because LOAD_ARGS macro was very sublty different from RESTORE_ARGS, it had only two callsites and only this one was using that difference. Signed-off-by: De