Re: hrtimer: one more expiry time overflow check in hrtimer_interrupt

2013-07-05 Thread Thomas Gleixner
On Fri, 5 Jul 2013, Shinya Kuribayashi wrote: > On 6/28/2013 9:22 PM, Thomas Gleixner wrote: > >> On the other hand, we have another call site of tick_program_event() at > >> the bottom of hrtimer_interrupt(). The warning this time is triggered > >> there, so we need to apply the same fix to it.

Re: hrtimer: one more expiry time overflow check in hrtimer_interrupt

2013-07-05 Thread Shinya Kuribayashi
On 6/28/2013 9:22 PM, Thomas Gleixner wrote: >> On the other hand, we have another call site of tick_program_event() at >> the bottom of hrtimer_interrupt(). The warning this time is triggered >> there, so we need to apply the same fix to it. > > Well, the problem is that you are just papering

Re: hrtimer: one more expiry time overflow check in hrtimer_interrupt

2013-07-05 Thread Shinya Kuribayashi
On 6/28/2013 9:22 PM, Thomas Gleixner wrote: On the other hand, we have another call site of tick_program_event() at the bottom of hrtimer_interrupt(). The warning this time is triggered there, so we need to apply the same fix to it. Well, the problem is that you are just papering over the

Re: hrtimer: one more expiry time overflow check in hrtimer_interrupt

2013-07-05 Thread Thomas Gleixner
On Fri, 5 Jul 2013, Shinya Kuribayashi wrote: On 6/28/2013 9:22 PM, Thomas Gleixner wrote: On the other hand, we have another call site of tick_program_event() at the bottom of hrtimer_interrupt(). The warning this time is triggered there, so we need to apply the same fix to it. Well,

Re: hrtimer: one more expiry time overflow check in hrtimer_interrupt

2013-06-28 Thread Thomas Gleixner
On Tue, 11 Jun 2013, Shinya Kuribayashi wrote: > When executing a date command to set the system date and time to a few > seconds before the 2038 problem expiration time, we got a WARN_ON_ONCE() > like this: > > root@renesas:~# date -s "2038-1-19 3:14:00" > Tue Jan 19 03:14:00 GMT 2038 >

Re: hrtimer: one more expiry time overflow check in hrtimer_interrupt

2013-06-28 Thread Thomas Gleixner
On Tue, 11 Jun 2013, Shinya Kuribayashi wrote: When executing a date command to set the system date and time to a few seconds before the 2038 problem expiration time, we got a WARN_ON_ONCE() like this: root@renesas:~# date -s 2038-1-19 3:14:00 Tue Jan 19 03:14:00 GMT 2038 (then wait

Re: hrtimer: one more expiry time overflow check in hrtimer_interrupt

2013-06-14 Thread Shinya Kuribayashi
Hello, On 6/12/2013 9:21 PM, Prarit Bhargava wrote: > On 06/11/2013 03:41 AM, Shinya Kuribayashi wrote: >> [ 27.857330] hrtimer: interrupt took 0 ns > > ^^^ see below ... This may be because the frequency of our tick timer source in this system is very slow, it's 32768 Hz. I think it's not

Re: hrtimer: one more expiry time overflow check in hrtimer_interrupt

2013-06-14 Thread Shinya Kuribayashi
Hello, On 6/12/2013 9:21 PM, Prarit Bhargava wrote: On 06/11/2013 03:41 AM, Shinya Kuribayashi wrote: [ 27.857330] hrtimer: interrupt took 0 ns ^^^ see below ... This may be because the frequency of our tick timer source in this system is very slow, it's 32768 Hz. I think it's not

Re: hrtimer: one more expiry time overflow check in hrtimer_interrupt

2013-06-12 Thread Prarit Bhargava
On 06/11/2013 03:41 AM, Shinya Kuribayashi wrote: > When executing a date command to set the system date and time to a few > seconds before the 2038 problem expiration time, we got a WARN_ON_ONCE() > like this: > > root@renesas:~# date -s "2038-1-19 3:14:00" > Tue Jan 19 03:14:00 GMT 2038 >

Re: hrtimer: one more expiry time overflow check in hrtimer_interrupt

2013-06-12 Thread Prarit Bhargava
On 06/11/2013 03:41 AM, Shinya Kuribayashi wrote: When executing a date command to set the system date and time to a few seconds before the 2038 problem expiration time, we got a WARN_ON_ONCE() like this: root@renesas:~# date -s 2038-1-19 3:14:00 Tue Jan 19 03:14:00 GMT 2038 (then

hrtimer: one more expiry time overflow check in hrtimer_interrupt

2013-06-11 Thread Shinya Kuribayashi
When executing a date command to set the system date and time to a few seconds before the 2038 problem expiration time, we got a WARN_ON_ONCE() like this: root@renesas:~# date -s "2038-1-19 3:14:00" Tue Jan 19 03:14:00 GMT 2038 (then wait for 7-8 seconds) root@renesas:~# [ 27.662658]

hrtimer: one more expiry time overflow check in hrtimer_interrupt

2013-06-11 Thread Shinya Kuribayashi
When executing a date command to set the system date and time to a few seconds before the 2038 problem expiration time, we got a WARN_ON_ONCE() like this: root@renesas:~# date -s 2038-1-19 3:14:00 Tue Jan 19 03:14:00 GMT 2038 (then wait for 7-8 seconds) root@renesas:~# [ 27.662658]