Re: [Mimedefang] reread mimedefang after sa-update
Hi Richard, Am Donnerstag, den 15.09.2016, 00:48 -0500 schrieb Richard Laager: [...] > So configure.in has a check for this pthread flag, but does not use > $PTHREAD_FLAG as part of the $CFLAGS for the SAFE_EMBED_PERL test. Patch > attached, which results in SAFE_EMBED_PERL set and reread working for me > on Ubuntu 16.04. > > The patch is for configure.in. You'll need to either regenerate > configure, or apply the same change to configure. > > Thanks for catching this. I just upgraded my mail servers a couple days > ago and I hadn't actually tested the reread operation. Thanks for your patch, great. I built a Ubuntu/trusty backport for version 2.78. Anyone feel free to use it [1] (no mimedefang code changes expect Richard's patch and change package format for better patch handling). Ciao Marcus [1] https://www.binux.de/debian/trusty/mimedefang/ ___ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list MIMEDefang@lists.roaringpenguin.com http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
Re: [Mimedefang] reread mimedefang after sa-update
Hi Richard, Am Donnerstag, den 15.09.2016, 00:48 -0500 schrieb Richard Laager: [...] > > I'm digging into it right now. The problem seems to be that Perl outputs > > -lpthread as a required LDFLAG, but gcc needs -pthread (with no "l"), or > > else it fails linking to the symbol pthread_setspecific. > > So configure.in has a check for this pthread flag, but does not use > $PTHREAD_FLAG as part of the $CFLAGS for the SAFE_EMBED_PERL test. Patch > attached, which results in SAFE_EMBED_PERL set and reread working for me > on Ubuntu 16.04. > > The patch is for configure.in. You'll need to either regenerate > configure, or apply the same change to configure. > > Thanks for catching this. I just upgraded my mail servers a couple days > ago and I hadn't actually tested the reread operation. Patched configure.in and configure (line 4234) and built a package on Ubuntu 12.04 LTS and 14.04 LTS and everything seems fine: -- checking whether x86_64-linux-gnu-gcc accepts -pthread... yes checking if we can embed a Perl interpreter in C... yes checking if it is safe to destroy and recreate a Perl interpreter... yes checking for res_init in -lresolv... no -- and I can reread config: -- Sep 16 18:13:07 vorlage1204 mimedefang-multiplexor[3772]: Re-initialized embedded Perl interpreter Sep 16 18:13:07 vorlage1204 mimedefang-multiplexor[3772]: Killing idle slave 0 (pid 4225): Forcing reread of filter rules Sep 16 18:13:07 vorlage1204 mimedefang-multiplexor[3772]: Killing idle slave 1 (pid 4216): Forcing reread of filter rules Sep 16 18:13:07 vorlage1204 mimedefang-multiplexor[3772]: Reap: slave 1 (pid 4216) exited normally with status 0 Sep 16 18:13:07 vorlage1204 mimedefang-multiplexor[3772]: Slave 1 resource usage: req=0, scans=0, user=0.000, sys=0.006, nswap=0, majflt=0, minflt=343, maxrss=27128, bi=0, bo=0 Sep 16 18:13:07 vorlage1204 mimedefang-multiplexor[3772]: Reap: slave 0 (pid 4225) exited normally with status 0 Sep 16 18:13:07 vorlage1204 mimedefang-multiplexor[3772]: Slave 0 resource usage: req=0, scans=0, user=0.006, sys=0.000, nswap=0, majflt=0, minflt=343, maxrss=27128, bi=0, bo=0 -- Ciao Marcus -- I'm looking for something that can deliver a 50-pound payload of snow on a small feminine target. Can you suggest something? Hello...? --- Calvin ___ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list MIMEDefang@lists.roaringpenguin.com http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
Re: [Mimedefang] reread mimedefang after sa-update
On Thu, 15 Sep 2016 00:48:01 -0500 Richard Laager wrote: > So configure.in has a check for this pthread flag, but does not use > $PTHREAD_FLAG as part of the $CFLAGS for the SAFE_EMBED_PERL test. > Patch attached, which results in SAFE_EMBED_PERL set and reread > working for me on Ubuntu 16.04. Oh, thanks! I'll apply. Regards, Dianne. ___ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list MIMEDefang@lists.roaringpenguin.com http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
Re: [Mimedefang] reread mimedefang after sa-update
On 09/14/2016 11:48 PM, Richard Laager wrote: > On 09/14/2016 11:12 AM, Marcus Schopen wrote: >> Am Mittwoch, den 14.09.2016, 11:51 -0400 schrieb Dianne Skoll: >>> On Wed, 14 Sep 2016 17:46:07 +0200 >>> Marcus Schopen wrote: >>> Sep 14 17:39:55 scansrv mimedefang-multiplexor[24029]: Cannot destroy and recreate a Perl interpreter safely on this platform. Filter rules will NOT be reread. >>> >>> Huh! That is very weird. I don't get anything like that on Debian Jessie. >> >> Hmmm, I get this error on Ubuntu 12.04 LTS too, mimedefang 2.71, perl >> 5.14.2. >> >>> If you get that message, then you'll need to do restart instead of reread. >> >> Okay, but this might harm a mail which is in process. Any ideas how to >> fix above error? > > I'm digging into it right now. The problem seems to be that Perl outputs > -lpthread as a required LDFLAG, but gcc needs -pthread (with no "l"), or > else it fails linking to the symbol pthread_setspecific. So configure.in has a check for this pthread flag, but does not use $PTHREAD_FLAG as part of the $CFLAGS for the SAFE_EMBED_PERL test. Patch attached, which results in SAFE_EMBED_PERL set and reread working for me on Ubuntu 16.04. The patch is for configure.in. You'll need to either regenerate configure, or apply the same change to configure. Thanks for catching this. I just upgraded my mail servers a couple days ago and I hadn't actually tested the reread operation. -- Richard --- mimedefang-2.78/configure.in 2015-04-23 09:37:03.0 -0500 +++ mimedefang-2.78-new/configure.in 2016-09-14 23:58:36.713587787 -0500 @@ -343,7 +343,7 @@ AC_MSG_CHECKING([if it is safe to destroy and recreate a Perl interpreter]) LIBS="-lperl $LIBS" LDFLAGS="$EMBPERLLDFLAGS $LDFLAGS" - CFLAGS="$EMBPERLCFLAGS $CFLAGS" + CFLAGS="$EMBPERLCFLAGS $CFLAGS $PTHREAD_FLAG" AC_TRY_RUN([ #include #include ___ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list MIMEDefang@lists.roaringpenguin.com http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
Re: [Mimedefang] reread mimedefang after sa-update
On 09/14/2016 11:12 AM, Marcus Schopen wrote: > Am Mittwoch, den 14.09.2016, 11:51 -0400 schrieb Dianne Skoll: >> On Wed, 14 Sep 2016 17:46:07 +0200 >> Marcus Schopen wrote: >> >>> Sep 14 17:39:55 scansrv mimedefang-multiplexor[24029]: Cannot destroy >>> and recreate a Perl interpreter safely on this platform. Filter rules >>> will NOT be reread. >> >> Huh! That is very weird. I don't get anything like that on Debian Jessie. > > Hmmm, I get this error on Ubuntu 12.04 LTS too, mimedefang 2.71, perl > 5.14.2. > >> If you get that message, then you'll need to do restart instead of reread. > > Okay, but this might harm a mail which is in process. Any ideas how to > fix above error? I'm digging into it right now. The problem seems to be that Perl outputs -lpthread as a required LDFLAG, but gcc needs -pthread (with no "l"), or else it fails linking to the symbol pthread_setspecific. Since the SAFE_EMBED_PERL configure test then fails to compile, MIMEDefang thinks it can't do a reread on this platform. -- Richard ___ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list MIMEDefang@lists.roaringpenguin.com http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
Re: [Mimedefang] reread mimedefang after sa-update
On Wed, 14 Sep 2016 20:39:19 +0200 Marcus Schopen wrote: > Hmmm, what's the performance loss if not using embedded Perl? There is some, but it's mostly related to startup costs. Once things are running, there's not a huge difference. Unless you're running a busy machine (lets say more than 500 000 messages/day) you shouldn't have any problems disabling embedded Perl. Regards, Dianne. ___ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list MIMEDefang@lists.roaringpenguin.com http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
Re: [Mimedefang] reread mimedefang after sa-update
Am Mittwoch, den 14.09.2016, 13:08 -0400 schrieb Dianne Skoll: > On Wed, 14 Sep 2016 18:12:39 +0200 > Marcus Schopen wrote: > > > Okay, but this might harm a mail which is in process. Any ideas how to > > fix above error? > > No... no idea. If you don't use embedded Perl (ie, leave the -E flag off > of the mimedefang-multiplexor command line) then you will be able to > use md-mx-ctrl reread. Hmmm, what's the performance loss if not using embedded Perl? Ciao Marcus ___ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list MIMEDefang@lists.roaringpenguin.com http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
Re: [Mimedefang] reread mimedefang after sa-update
On Wed, 14 Sep 2016 18:12:39 +0200 Marcus Schopen wrote: > Okay, but this might harm a mail which is in process. Any ideas how to > fix above error? No... no idea. If you don't use embedded Perl (ie, leave the -E flag off of the mimedefang-multiplexor command line) then you will be able to use md-mx-ctrl reread. Regards, Dianne. ___ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list MIMEDefang@lists.roaringpenguin.com http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
Re: [Mimedefang] reread mimedefang after sa-update
Am Mittwoch, den 14.09.2016, 11:51 -0400 schrieb Dianne Skoll: > On Wed, 14 Sep 2016 17:46:07 +0200 > Marcus Schopen wrote: > > > Sep 14 17:39:55 scansrv mimedefang-multiplexor[24029]: Cannot destroy > > and recreate a Perl interpreter safely on this platform. Filter rules > > will NOT be reread. > > Huh! That is very weird. I don't get anything like that on Debian Jessie. Hmmm, I get this error on Ubuntu 12.04 LTS too, mimedefang 2.71, perl 5.14.2. > If you get that message, then you'll need to do restart instead of reread. Okay, but this might harm a mail which is in process. Any ideas how to fix above error? Ciao Marcus ___ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list MIMEDefang@lists.roaringpenguin.com http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
Re: [Mimedefang] reread mimedefang after sa-update
On Wed, 14 Sep 2016 17:46:07 +0200 Marcus Schopen wrote: > Sep 14 17:39:55 scansrv mimedefang-multiplexor[24029]: Cannot destroy > and recreate a Perl interpreter safely on this platform. Filter rules > will NOT be reread. Huh! That is very weird. I don't get anything like that on Debian Jessie. If you get that message, then you'll need to do restart instead of reread. Regards, Dianne. ___ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list MIMEDefang@lists.roaringpenguin.com http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
Re: [Mimedefang] reread mimedefang after sa-update
Am Mittwoch, den 14.09.2016, 09:35 -0400 schrieb Dianne Skoll: > On Wed, 14 Sep 2016 07:54:50 +0200 > Marcus Schopen wrote: > > > do I need to reread or reload mimedefang after sa-update e.g. > > /etc/cron.daily/spamassassin to get the changes in spamassassin rules > > recognized by mimedefang? > > Yep. "md-mx-ctrl reread" is a pretty non-invasive operation, so it's > quite safe. Dianne! Thanks. Then one should add something like "/etc/init.d/mimedefang reread > /dev/null" to /etc/cron.daily/spamassassin in the section where when updates are found, right? /etc/cron.daily/spamassassin: [...] # got updates! su - debian-spamd -c "spamassassin --lint" || die_with_lint do_compile reload # Mimedefang neu laden /etc/init.d/mimedefang reread > /dev/null ;; [...] Btw I get an error on reread, Is this to worried about? - Sep 14 17:39:55 scansrv mimedefang-multiplexor[24029]: Cannot destroy and recreate a Perl interpreter safely on this platform. Filter rules will NOT be reread. Sep 14 17:39:55 scansrv mimedefang-multiplexor[24029]: Re-initialized embedded Perl interpreter Sep 14 17:39:55 scansrv mimedefang-multiplexor[24029]: Killing idle slave 1 (pid 26628): Forcing reread of filter rules Sep 14 17:39:55 scansrv mimedefang-multiplexor[24029]: Killing idle slave 0 (pid 26627): Forcing reread of filter rules Sep 14 17:39:55 scansrv mimedefang-multiplexor[24029]: Reap: slave 0 (pid 26627) exited normally with status 0 Sep 14 17:39:55 scansrv mimedefang-multiplexor[24029]: Slave 0 resource usage: req=0, scans=0, user=0.004, sys=0.004, nswap=0, majflt=0, minflt=199, maxrss=36992, bi=0, bo=0 Sep 14 17:39:55 scansrv mimedefang-multiplexor[24029]: Reap: slave 1 (pid 26628) exited normally with status 0 Sep 14 17:39:55 scansrv mimedefang-multiplexor[24029]: Slave 1 resource usage: req=0, scans=0, user=0.007, sys=0.001, nswap=0, majflt=0, minflt=199, maxrss=36992, bi=0, bo=0 Sep 14 17:39:58 scansrv mimedefang-multiplexor[24029]: Starting slave 1 (pid 26690) (1 running): Bringing slaves up to minSlaves (2) Sep 14 17:40:01 scansrv mimedefang-multiplexor[24029]: Starting slave 0 (pid 26715) (2 running): Bringing slaves up to minSlaves (2) - System is Ubuntu 14.04 LTS, mimedefang 2.73 Ciao Marcus ___ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list MIMEDefang@lists.roaringpenguin.com http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
Re: [Mimedefang] reread mimedefang after sa-update
On Wed, 14 Sep 2016 07:54:50 +0200 Marcus Schopen wrote: > do I need to reread or reload mimedefang after sa-update e.g. > /etc/cron.daily/spamassassin to get the changes in spamassassin rules > recognized by mimedefang? Yep. "md-mx-ctrl reread" is a pretty non-invasive operation, so it's quite safe. Regards, Dianne. ___ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list MIMEDefang@lists.roaringpenguin.com http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
