On Wed, Mar 02, 2016 at 11:35:35AM -0500, Steven Rostedt wrote: > On Wed, 2 Mar 2016 17:24:12 +0100 > Peter Zijlstra <pet...@infradead.org> wrote: > > > On Wed, Mar 02, 2016 at 04:53:36PM +0100, Sedat Dilek wrote: > > > ffffffff8110f570 <del_timer_sync>: > > > ffffffff8110f570: 55 push %rbp > > > ffffffff8110f571: 48 89 e5 mov %rsp,%rbp > > > ffffffff8110f574: 41 57 push %r15 > > > ffffffff8110f576: 41 56 push %r14 > > > ffffffff8110f578: 53 push %rbx > > > ffffffff8110f579: 48 83 ec 28 sub $0x28,%rsp > > > > stack offset is 0x28 bytes [*] > > Actually, isn't it really 0x40 bytes? The stack pushed 3 words (8 bytes > each) before doing the subtract. 0x28 == 40 bytes, 3 * 8 = 24, > 40 + 24 = 64 == 0x40.
> > > ffffffff8110f5fd: 4c 89 75 d0 mov %r14,-0x30(%rbp) > > > ffffffff8110f601: ff 75 d0 pushq -0x30(%rbp) > > > ffffffff8110f604: 9d popfq > > > > put r14 into -0x30(rbp) and pushes/pops that, see [*] this is 8 bytes > > over stack ?! > > But from rbp, the stack is 0x40 bytes. This may be fine. Ah indeed. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
