[Printing-architecture] CUPS STR #4521: Unexplained high CPU use by cupsd on Linux...

[Printing-architecture] CUPS STR #4521: Unexplained high CPU use by cupsd on Linux...

[Michael Sweet]

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All,

We've received several bug reports about cupsd using 100% CPU, either on startup or after connecting/turning on a printer:

    https://www.cups.org/str.php?L4521

I cannot reproduce myself, but was hoping someone more familiar with all of the helper programs running on Linux might be able to shed some light on this?

_________________________________________________________
Michael Sweet, Senior Printing System Engineer, PWG Chair


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Re: [Printing-architecture] CUPS STR #4521: Unexplained high CPU use by cupsd on Linux...

[Pascal Obry]

Le mardi 02 décembre 2014 à 11:35 -0500, Michael Sweet a écrit : 
> All,
> 
> We've received several bug reports about cupsd using 100% CPU, either on startup or after connecting/turning on a printer:
> 
>     https://www.cups.org/str.php?L4521
> 
> I cannot reproduce myself, but was hoping someone more familiar with all of the helper programs running on Linux might be able to shed some light on this?

Isn't this that the issue with the /tmp filling bug?

https://bugs.launchpad.net/ubuntu/+source/system-config-printer/+bug/1156398

There was a similar bug reported on Debian.

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Re: [Printing-architecture] CUPS STR #4521: Unexplained high CPU use by cupsd on Linux...

[Michael Sweet]

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Pascal,

> On Dec 2, 2014, at 2:43 PM, Pascal Obry <pascal@obry.net> wrote:
> 
> Le mardi 02 décembre 2014 à 11:35 -0500, Michael Sweet a écrit : 
>> All,
>> 
>> We've received several bug reports about cupsd using 100% CPU, either on startup or after connecting/turning on a printer:
>> 
>>    https://www.cups.org/str.php?L4521
>> 
>> I cannot reproduce myself, but was hoping someone more familiar with all of the helper programs running on Linux might be able to shed some light on this?
> 
> Isn't this that the issue with the /tmp filling bug?
> 
> https://bugs.launchpad.net/ubuntu/+source/system-config-printer/+bug/1156398
> 
> There was a similar bug reported on Debian.

I have reports of this with CUPS 2.0.1 which has the fix for the permissions issue, so that should not be the same issue unless system-config-printer is bypassing the cupsGetPPD API.

_________________________________________________________
Michael Sweet, Senior Printing System Engineer, PWG Chair


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Re: [Printing-architecture] CUPS STR #4521: Unexplained high CPU use by cupsd on Linux...

[Till Kamppeter]

On 12/02/2014 05:35 PM, Michael Sweet wrote:
> All,
> 
> We've received several bug reports about cupsd using 100% CPU, either on startup or after connecting/turning on a printer:
> 
>     https://www.cups.org/str.php?L4521
> 
> I cannot reproduce myself, but was hoping someone more familiar with all of the helper programs running on Linux might be able to shed some light on this?
> 

We (Didier Raboud and me) did not yet update Debian and Ubuntu to CUPS
2.0.x. Therefore we did not hit the problem yet.

   Till