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Re: File locking broken with 2.99.45 on FreeBSD 2.1
> Is anyone using ZMailer on FreeBSD? I've installed it on my PC,
> 486DX80 with 32MB. After installation, I tried testing it by sending
> a message to another local address, but I did not see the message
> delivered to the local mailbox, nor did I recieve a bounce message.
I have now thought about it for a few minutes (and read
Tom Samplonius' comment too..)
There is a runtime configurable way to fix this;
Mailbox locks are now runtime configurable, see the
manpage of mailbox.8 and also SiteConfig(.in)
The default is compiled into the mailbox -- if system has
flock(), the default sequence is: dotlock + flock(), else
it is: dotlock + lockf() (if lockf() is not available, then
it is only: dotlock)
Setting the ZCONFIG parameter MBOXLOCKS=F and on scheduler.conf,
set the local/* to look something like following:
# Local delivery: user mail, files, processes
# want 20 channel slots, but only one HOST
--> # We want to run mail-delivery in a sort of 'set-gid' mode
# Do MIME text/plain; Quoted-Printable -> text/plain; 8BIT
# conversion on flight!
Albeit that might not be absolutely necessary..
(.. and onwards he mumbles about strange looking UID/GID setting
codes inside the mailbox program...)
I wish there were some clear and simple way to autoconfigure
this aspect about the system.
> I went rummaging in $POSTOFFICE/queue to see if I could figure out
> what went wrong, and I found this in one of the message files:
> % channel error
> % todsn ORCPT=rfc822;postoffice
> % to <postoffice>
> % env-end
> % To: dummy:; (error trapped source)
> % From: The Post Office <postmaster>
> % Sender: mailer-daemon
> % Subject: Double-fault: Delivery reports about your email
> % Cc: The Post Office <postoffice>
> % MIME-Version: 1.0
> % Content-Type: multipart/report; report-type=delivery-status;
> % boundary="A41C6D020.854311499=_/pino.connectnet.com"
> % --A41C6D020.854311499=_/pino.connectnet.com
> % Content-Type: text/plain
> % This is a collection of reports about email delivery
> % process concerning a message you originated:
> % <local root alcocer 0>: can't dotlock "/var/spool/mail/alcocer": Permission denied (this is abnormal, investigate!)
> How should file locking be configured on FreeBSD? In case it matters,
> I *was* running 2.99.26 with HOSTENV (in Config) set to FreeBSD-2.0,
> and I was not encountering file locking problems before.
Right. It apparently uses FLOCK -only.
(Definitely not using MAILLOCK)
> Any advice/suggestions appreciated.
> Dario Alcocer
/Matti Aarnio <firstname.lastname@example.org>