Did anyone notice ... lockup at DST change?

on 25 Oct 2009 08:35:37 GMT, Jorgen Grahn wrote:

> Sweden did the Daylight Savings Time change this night. When I got up,
> put on the coffee and went over to my computer, the normal Opera
> 10.00.4585.gcc4.qt4 was locked up and used 100% CPU:

Confirmed with 10.10.4632.

--
begin .sig
< Jernej SimonÄ�iÄ� ><>◊<>< jernej|s-ng at eternallybored.org >
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On Sun, 25 Oct 2009 09:35:37 +0100, Jorgen Grahn
<grahn+nntp@snipabacken.se> wrote:

> Hi,
>
> Sweden did the Daylight Savings Time change this night. When I got up,
> put on the coffee and went over to my computer, the normal Opera
> 10.00.4585.gcc4.qt4 was locked up and used 100% CPU:
>
> top - 09:22:20 [...]
>
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> 1698 grahn 30 10 429m 198m 19m R 98.4 19.8 447:16.77 opera
>
> I bet if I count back 447 minutes, I arrive at the time when local
> time got pushed back an hour.
>
> I will file a bug report through the proper channels.
>
> /Jorgen
>

Nice one, I didn't think of this when Opera was locked up when I woke up.
The good thing is that they have almost a year to fix it, since I think
the clock going forward won't have the same effect

--
Remco Lanting

[Unofficial Opera bug tracker links]
http://opera.remcol.ath.cx/bugs |
http://my.opera.com/community/forums/topic.dml?id=217364 |
remco.lanting+operabugtraq@gmail.com

On Sun, 2009-10-25, Remco Lanting wrote:
> On Sun, 25 Oct 2009 09:35:37 +0100, Jorgen Grahn
> <grahn+nntp@snipabacken.se> wrote:
>
>> Hi,
>>
>> Sweden did the Daylight Savings Time change this night. When I got up,
>> put on the coffee and went over to my computer, the normal Opera
>> 10.00.4585.gcc4.qt4 was locked up and used 100% CPU:
>>
>> top - 09:22:20 [...]
>>
>> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
>> 1698 grahn 30 10 429m 198m 19m R 98.4 19.8 447:16.77 opera
>>
>> I bet if I count back 447 minutes, I arrive at the time when local
>> time got pushed back an hour.
>>
>> I will file a bug report through the proper channels.
>>
>> /Jorgen
>>
>
> Nice one, I didn't think of this when Opera was locked up when I woke up.

Yeah -- I wonder what has happened in the weekend regression tests at
the place where *I* work

> The good thing is that they have almost a year to fix it, since I think
> the clock going forward won't have the same effect

The current DST switch day in Sweden is harmonized with the EU --
that's why it's so bloody late in the year nowadays. Maybe Norway
"harmonized" itself too even though they're not members.

I would have thought that some regions in the world did the shift
earlier, so Opera users there would have reported the bug already.
Maybe they have -- this is not the kind of bug which makes a company
push out emergency updates.

/Jorgen

--
// Jorgen Grahn <grahn@ Oo o. . .
\X/ snipabacken.se> O o .

Jorgen Grahn <grahn+nntp@snipabacken.se> writes:

> On Sun, 2009-10-25, Remco Lanting wrote:
>> On Sun, 25 Oct 2009 09:35:37 +0100, Jorgen Grahn
>> <grahn+nntp@snipabacken.se> wrote:
>>
>>> Hi,
>>>
>>> Sweden did the Daylight Savings Time change this night. When I got up,
>>> put on the coffee and went over to my computer, the normal Opera
>>> 10.00.4585.gcc4.qt4 was locked up and used 100% CPU:
>>>
> The current DST switch day in Sweden is harmonized with the EU --
> that's why it's so bloody late in the year nowadays. Maybe Norway
> "harmonized" itself too even though they're not members.

Yes, we have. I saw the same at home yesterday, but didn't realize it
was the dst shift until I got into office today and saw the same
behaviour here.

eirik

Remco Lanting wrote:

> Nice one, I didn't think of this when Opera was locked up when I woke up.
> The good thing is that they have almost a year to fix it, since I think
> the clock going forward won't have the same effect

Nope. According to wikipedia
(http://en.wikipedia.org/wiki/Daylight_saving_time_around_the_world) they
got only this week because Canada and the US shift on the first sunday in
november which will be next sunday.

Björn

On Sun, 25 Oct 2009 10:02:01 +0100, Jorgen Grahn
<grahn+nntp@snipabacken.se> wrote:

> On Sun, 2009-10-25, Jorgen Grahn wrote:
>> Hi,
>>
>> Sweden did the Daylight Savings Time change this night. When I got up,
>> put on the coffee and went over to my computer, the normal Opera
>> 10.00.4585.gcc4.qt4 was locked up and used 100% CPU:
>>
>> top - 09:22:20 [...]
>>
>> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
>> 1698 grahn 30 10 429m 198m 19m R 98.4 19.8 447:16.77 opera
>>
>> I bet if I count back 447 minutes, I arrive at the time when local
>> time got pushed back an hour.
>>
>> I will file a bug report through the proper channels.
>
> And the bug is DSK-268808.TakeThisOut@bugs.opera.com
>
> strace(1) told me that the hung opera was doing stat("/etc/localtime",
> ...) every 6 ms or so. Nothing else in terms of syscalls.
>
> /Jorgen
>

Actually the bug is DSK-268805. I have duped yours to it.

P.S. Please do not post full bug email addresses.

--
Ruari Ødegaard
Opera Software
Remove NO SPAM from e-mail address to reply

On Sun, 25 Oct 2009 13:02:23 +0100, Remco Lanting
<remco.lanting.TakeThisOut@no.spam.at.gmail.com.please> wrote:

> On Sun, 25 Oct 2009 09:35:37 +0100, Jorgen Grahn
> <grahn+nntp@snipabacken.se> wrote:
>
>> Hi,
>>
>> Sweden did the Daylight Savings Time change this night. When I got up,
>> put on the coffee and went over to my computer, the normal Opera
>> 10.00.4585.gcc4.qt4 was locked up and used 100% CPU:
>>
>> top - 09:22:20 [...]
>>
>> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
>> 1698 grahn 30 10 429m 198m 19m R 98.4 19.8 447:16.77 opera
>>
>> I bet if I count back 447 minutes, I arrive at the time when local
>> time got pushed back an hour.
>>
>> I will file a bug report through the proper channels.
>>
>> /Jorgen
>>
>
> Nice one, I didn't think of this when Opera was locked up when I woke
> up. The good thing is that they have almost a year to fix it, since I
> think the clock going forward won't have the same effect
>

Actually the U.S. shifts on November the 1st.

--
Ruari Ødegaard
Opera Software
Remove NO SPAM from e-mail address to reply

On Mon, 2009-10-26, Ruari Ødegaard wrote:
> On Sun, 25 Oct 2009 10:02:01 +0100, Jorgen Grahn
> <grahn+nntp@snipabacken.se> wrote:
>
>> On Sun, 2009-10-25, Jorgen Grahn wrote:
>>> Hi,
>>>
>>> Sweden did the Daylight Savings Time change this night. When I got up,
>>> put on the coffee and went over to my computer, the normal Opera
>>> 10.00.4585.gcc4.qt4 was locked up and used 100% CPU:
....
>>> I will file a bug report through the proper channels.
>>
>> And the bug is DSK-268808@[...]
>>
>> strace(1) told me that the hung opera was doing stat("/etc/localtime",
>> ...) every 6 ms or so. Nothing else in terms of syscalls.
>>
>> /Jorgen
>>
>
> Actually the bug is DSK-268805. I have duped yours to it.

Oh, thanks for letting me/us know. And apologies for not mentioning
in the bug report that I had started a discussion here -- I suppose
the vast majority of users never visit opera.linux.

> P.S. Please do not post full bug email addresses.

For the spammers? Oh, sorry. Didn't think of that.

/Jorgen

--
// Jorgen Grahn <grahn@ Oo o. . .
\X/ snipabacken.se> O o .