The solution is to increase value for limit_memory_hard parameter in odoo config file

Dear, When you try to generate a big pdf (over 200 pages) with header and footer, you are an error -11. It is a limitation of max handle file per process. (default is 256). But the wkhtmltopdf open for each page the header and the footer. to change this value : http://stackoverflow.com/questions/16526783/python-subprocess-too-many-open-files In terminal : ulimit -n 10000

We run on wkhtmltopdf 0.12.2.1 and got the errorcode -11 only in some rare cases. So the error could appear for a sale order. Only by changing the saleorder lines or other information like deleting the notes, save, paste the old notes, we could get through the error.

How we solved the problem:

In our case, the error was not consistent. We changed the limit_memory_hard and tried other solutions, which finally didnt help us. We've been building the report styles by replacing it without inherit_id
so the new customer reportstyle template was like

<template id="report.style"> CSS HERE </template>

and we went to....

<template id="report_style_custom" inherit_id="report.style">
<xpath expr=".">
<t>
CSS HERE
</t>
</xpath>
</template>

While in 0.12.1 this error didnt occure nearly once,

in 0.12.2.1 this solution helped us at www.myodoo.de and for our customers

In my case it was selinux getting in the way, have you checked your /etc/log/audit/audit.log?

Hi

I am getting same issues to my vm (Debian 7.0). When I restart server it works well but after sometime I get it again. I dont know how to fix it.

Can anybody help me ?

Hi i had the same probleme, i solved it by installing wkhtmtopdf compiled with patched Qt libs. You can download it here

http://download.gna.org/wkhtmltopdf/0.12/0.12.2/

@Lucas,

It happened also to me after some change of document header. Combination of header.html + body.html + footer.html goes in crash.

Be patient, restore original file html and do 1 change per time, until you'll discover what is wrong.

Be patient, very patient

Antonio