Re: BUG #5810: non-accessible hardlink creation was attempted by: postgres (fsuid 115)

On Sunday 02 January 2011 15:16:28 Vincent wrote:
> The following bug has been logged online:
>
> Bug reference:      5810
> Logged by:          Vincent
> Email address:      vmaury79@yahoo.fr
> PostgreSQL version: 8.4
> Operating system:   Ubuntu 10.10
> Description:        non-accessible hardlink creation was attempted by:
> postgres (fsuid 115)
> Details:
>
> Hi,
>
> I'm using postgresql 8.4 on a Ubuntu 10.10 live USB. When I call 'dmesg', I
> frequently see this line:
>
> non-accessible hardlink creation was attempted by: postgres (fsuid 115)
>
> Do you know what it means? How can I fix this?
> Thank you very much for your help,
Afaik this is caused by a strange security module of ubuntu. You can disable
the check by running something like
sysctl -w kernel.yama.protected_nonaccess_hardlinks=0
.

I would be interested to see where pg does this - did you notice any problems
on the postgres side? In /var/log/postgresql/8.4/main/postgresql.log or such?

Andres