(2014/10/08 20:51), Wanpeng Li wrote:
>
> 于 10/8/14, 2:43 PM, Yasuaki Ishimatsu 写道:
>> While offling node by hot removing memory, the following divide error
>> occurs:
>>
>>divide error: [#1] SMP
>>[...]
>>Call Trace:
>> [...] handle_mm_fault
>> [...] ? try_to_wake_up
>>
(2014/10/09 1:54), Peter Zijlstra wrote:
On Wed, Oct 08, 2014 at 12:42:24PM -0400, Rik van Riel wrote:
On 10/08/2014 02:43 AM, Yasuaki Ishimatsu wrote:
The divide error is rare case because the trigger is node offline.
By this patch, when both of private and shared are set to 0, diff
On Wed, Oct 08, 2014 at 12:42:24PM -0400, Rik van Riel wrote:
> On 10/08/2014 02:43 AM, Yasuaki Ishimatsu wrote:
>
> > The divide error is rare case because the trigger is node offline.
> > By this patch, when both of private and shared are set to 0, diff
> > is just set to 0, not
On 10/08/2014 02:43 AM, Yasuaki Ishimatsu wrote:
> The divide error is rare case because the trigger is node offline.
> By this patch, when both of private and shared are set to 0, diff
> is just set to 0, not calculating the division.
How about a simple
if (private + shared) == 0)
于 10/8/14, 2:43 PM, Yasuaki Ishimatsu 写道:
> While offling node by hot removing memory, the following divide error
> occurs:
>
> divide error: [#1] SMP
> [...]
> Call Trace:
>[...] handle_mm_fault
>[...] ? try_to_wake_up
>[...] ? wake_up_state
>[...] __do_page_fault
>
On Wed, Oct 08, 2014 at 03:43:11PM +0900, Yasuaki Ishimatsu wrote:
> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index bfa3c86..fb7dc3f 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -1496,18 +1496,26 @@ static void update_task_scan_period(struct
> task_struct
While offling node by hot removing memory, the following divide error
occurs:
divide error: [#1] SMP
[...]
Call Trace:
[...] handle_mm_fault
[...] ? try_to_wake_up
[...] ? wake_up_state
[...] __do_page_fault
[...] ? do_futex
[...] ? put_prev_entity
[...] ?
While offling node by hot removing memory, the following divide error
occurs:
divide error: [#1] SMP
[...]
Call Trace:
[...] handle_mm_fault
[...] ? try_to_wake_up
[...] ? wake_up_state
[...] __do_page_fault
[...] ? do_futex
[...] ? put_prev_entity
[...] ?
On Wed, Oct 08, 2014 at 03:43:11PM +0900, Yasuaki Ishimatsu wrote:
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index bfa3c86..fb7dc3f 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1496,18 +1496,26 @@ static void update_task_scan_period(struct
task_struct *p,
于 10/8/14, 2:43 PM, Yasuaki Ishimatsu 写道:
While offling node by hot removing memory, the following divide error
occurs:
divide error: [#1] SMP
[...]
Call Trace:
[...] handle_mm_fault
[...] ? try_to_wake_up
[...] ? wake_up_state
[...] __do_page_fault
[...] ?
On 10/08/2014 02:43 AM, Yasuaki Ishimatsu wrote:
The divide error is rare case because the trigger is node offline.
By this patch, when both of private and shared are set to 0, diff
is just set to 0, not calculating the division.
How about a simple
if (private + shared) == 0)
On Wed, Oct 08, 2014 at 12:42:24PM -0400, Rik van Riel wrote:
On 10/08/2014 02:43 AM, Yasuaki Ishimatsu wrote:
The divide error is rare case because the trigger is node offline.
By this patch, when both of private and shared are set to 0, diff
is just set to 0, not calculating the
(2014/10/09 1:54), Peter Zijlstra wrote:
On Wed, Oct 08, 2014 at 12:42:24PM -0400, Rik van Riel wrote:
On 10/08/2014 02:43 AM, Yasuaki Ishimatsu wrote:
The divide error is rare case because the trigger is node offline.
By this patch, when both of private and shared are set to 0, diff
(2014/10/08 20:51), Wanpeng Li wrote:
于 10/8/14, 2:43 PM, Yasuaki Ishimatsu 写道:
While offling node by hot removing memory, the following divide error
occurs:
divide error: [#1] SMP
[...]
Call Trace:
[...] handle_mm_fault
[...] ? try_to_wake_up
[...] ?
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