On Mon, 29 Apr 2019 14:46:18 +0200 Axel Beckert <[email protected]> wrote: > Package: postfix > Version: 3.1.12-0+deb9u1 > Severity: grave > Affects: procmail > Justfication: causes data loss (after a few days), breaks (more or less) unrelated packages (procmail) > > Dear Debian Postfix Maintainers, > > * What led up to the situation? > > Since a few minutes after upgrading Postfix on Stretch from > 3.1.9-0+deb9u2 to 3.1.12-0+deb9u1, procmail (!) on my server has been > unable to deliver mails to mailboxes bigger than some threshold: > > procmail: Error while writing to "/home/abe/mbox" > procmail: Truncated file to former size > procmail: Error while writing to "/var/mail/abe" > procmail: Truncated file to former size > > procmail itself has last been updated with the dist-upgrade of that box > from Jessie to Stretch. > > This threshold seems somewhere between 472 MB and 609 MB (see below), so > I suspect it to be 500 MB or 512 MB, as the examples of mailboxes to > which or to which not procmail could deliver mail are clearly separated > by their size: > > Postfix via procmail has delivered mails into these mailboxes since the > upgrade: > > $ tail -42720 procmail-log.2019-04 | egrep "Folder: [^*]" | awk '{print $2}' | sort -u | xargs ls -lhSr -- > -rw------- 1 abe users 4.4M Apr 29 04:49 -spam.4 > -rw------- 1 abe users 7.9M Apr 29 10:15 -spam.3 > -rw------- 1 abe users 11M Apr 29 13:09 -spam.2 > -rw------- 1 abe users 16M Apr 29 12:10 -spam.20 > -rw------- 1 abe users 48M Apr 28 16:43 -pkg-xen-devel > -rw------- 1 abe users 74M Apr 29 07:30 -debian-www > -rw------- 1 abe users 77M Apr 29 06:31 -debian-apt > -rw------- 1 abe users 110M Apr 28 20:24 -zsh > -rw------- 1 abe users 115M Apr 29 13:58 -spam.5 > -rw------- 1 abe users 128M Apr 29 09:42 -debian-lintian > -rw------- 1 abe users 138M Apr 29 12:13 -debian-sparc > -rw------- 1 abe users 183M Apr 29 08:18 -debian-qa > -rw------- 1 abe users 438M Apr 28 19:43 -spam.15 > -rw------- 1 abe users 472M Apr 29 09:17 -news > > Postfix via procmail wasn't able to deliver mails into these mailboxes > since the upgrade: > > $ tail -42720 procmail-log.2019-04 | fgrep "Error while writing to" | sort - u | awk -F'"' '{print $2}' | xargs ls -lhSr -- > lrwxrwxrwx 1 abe users 13 Jun 25 2018 /home/abe/mbox -> /var/mail/abe > -rw------- 1 abe users 606M Apr 29 13:25 -debian-arm > -rw------- 1 abe users 612M Apr 29 13:24 -debian-boot > -rw------- 1 abe users 737M Apr 29 13:25 -debian-release > -rw------- 1 abe users 838M Apr 29 08:00 -spam.10 > -rw------- 1 abe users 952M Apr 29 13:52 -debian > -rw--w---- 1 abe mail 1.4G Apr 29 13:53 /var/mail/abe > -rw------- 1 abe users 5.9G Apr 29 13:33 -logcheck > > This is IMHO sufficiently enough statistically relevant data to show
I'm unable to explain this either. The behavior of message_size_limit = 0 is undocumented (and was changed in 3.4 because of problems it was causing). What's your setting for that? What if you set that to a sufficiently large value. Does that help? Scott K
