Re: 100% CPU Utilization, looping with gettimeofday calls

On Wed, 19 Aug 2009 12:34:29 +0200, Witold Baryluk  
<[email protected]> wrote:

Hi Witold,

> Hi guys.
>
> I was reporting this bug many times. But still probably
> Opera developers are ignoring this.
>
> Opera is running tight loop with millions of gettimeofday calls.
>
> http://smp.if.uj.edu.pl/~baryluk/opera10_few_seconds_of_strace.txt.gz
>
> This is present sine 9.6x series, and is present in all snapshots,
> including Beta3 and 4546.

Below is some information from Arjan van Leeuwen,

"Unfortunately, this information is not useful to developers. Although the
gettimeofday() calls are the only thing you can see with strace (since
there are no other system calls), they are not what is causing the 100%
CPU usage. And since no one at Opera has ever reproduced this bug, it's
pretty difficult to see what's going on on your system.

"What might help is to create a crash log for Opera once this is happening.
To do this, wait until you are in this situation, and then send Opera a
SIGABRT signal using kill. This should trigger the crash report dialog.
Make sure to describe the situation you are in within the crash report,  
tell
us it's a freeze and not a crash, and provide your email address so that
we can contact you for further details. You can send several reports like
this - they are likely to be different, and one of them might provide the
hint that is needed."

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