On Mon, 2017-08-07 at 10:22 +0200, Mike Galbraith wrote:
> On Mon, 2017-08-07 at 09:33 +0200, Sebastian Andrzej Siewior wrote:
>
> > what timer is it :)?
>
> kernel/exit.c:
> 851 hrtimer_cancel(&tsk->signal->real_timer);
>
> That one.
cb_entry being base.expired (deferred) is the "what" part.
Freshly captured crash dump:
crash> hrtimer ffff8801605a7400
struct hrtimer {
node = {
node = {
__rb_parent_color = 18446612138225726464,
rb_right = 0xffff88017f0d4be0,
rb_left = 0x0
},
expires = 323599443206
},
_softexpires = 323599443206,
function = 0xffffffff81129f00 <it_real_fn>,
base = 0xffff88017f0d4580,
cb_entry = {
next = 0xffff88017f0d45a0,
prev = 0xffff88017f0d45a0
},
irqsafe = 0,
state = 0 '\000',
is_rel = 0 '\000'
}
crash> hrtimer_clock_base 0xffff88017f0d4580
struct hrtimer_clock_base {
cpu_base = 0xffff88017f0d4440,
index = 0,
clockid = 1,
active = {
head = {
rb_node = 0xffffc900079cfa48
},
next = 0xffff88017f0d4be0
},
expired = {
next = 0xffff88017f0d45a0,
prev = 0xffff88017f0d45a0
},
get_time = 0xffffffff8111dc90 <ktime_get>,
offset = 0
}
crash> hrtimer_clock_base -ox 0xffff88017f0d4580
struct hrtimer_clock_base {
[ffff88017f0d4580] struct hrtimer_cpu_base *cpu_base;
[ffff88017f0d4588] int index;
[ffff88017f0d458c] clockid_t clockid;
[ffff88017f0d4590] struct timerqueue_head active;
[ffff88017f0d45a0] struct list_head expired;
[ffff88017f0d45b0] ktime_t (*get_time)(void);
[ffff88017f0d45b8] ktime_t offset;
}
SIZE: 0x40
crash
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