Issues with postfix/postdrop after package update

2015-12-10 Thread Quanah Gibson-Mount
I've seen issues with postdrop for years, complaining that about permission denied errors, such as: postfix/postdrop[4158]: warning: mail_queue_enter: create file maildrop/768314.4158: Permission denied I'm not entirely clear why they occur. It seems related to postfix being stopped while a

Re: Issues with postfix/postdrop after package update

2015-12-10 Thread Wietse Venema
Quanah Gibson-Mount: > I've seen issues with postdrop for years, complaining that about permission > denied errors, such as: > > postfix/postdrop[4158]: warning: mail_queue_enter: create file > maildrop/768314.4158: Permission denied > > I'm not entirely clear why they occur. Note: the permiss

Re: Issues with postfix/postdrop after package update

2015-12-10 Thread Quanah Gibson-Mount
--On Thursday, December 10, 2015 2:27 PM -0500 Wietse Venema wrote: Really, it is as simple as a user-land program that calls open() and gets access denied by the kernel. If that is not 100% reproducible then you have a flaky kernel, a flaky file system, or some "security" system with a flaky

Re: Issues with postfix/postdrop after package update

2015-12-10 Thread Wietse Venema
Quanah Gibson-Mount: > --On Thursday, December 10, 2015 2:27 PM -0500 Wietse Venema > wrote: > > > Really, it is as simple as a user-land program that calls open() > > and gets access denied by the kernel. If that is not 100% reproducible > > then you have a flaky kernel, a flaky file system, or

Re: Issues with postfix/postdrop after package update

2015-12-10 Thread Quanah Gibson-Mount
--On Thursday, December 10, 2015 4:35 PM -0500 Wietse Venema wrote: If some breakage is specific to one software distribution, then I would investigate the distribution, instead of blaming the messenger. You could investigate whether AppArmor has a problem with set-gid write permissions. Th

Re: Issues with postfix/postdrop after package update

2015-12-10 Thread Quanah Gibson-Mount
--On Thursday, December 10, 2015 2:45 PM -0800 Quanah Gibson-Mount wrote: --On Thursday, December 10, 2015 4:35 PM -0500 Wietse Venema wrote: If some breakage is specific to one software distribution, then I would investigate the distribution, instead of blaming the messenger. You could in