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Bug#594449: proftpd-basic: Unable to reload (signal HUP) - The process is killed

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Pawel Tecza

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Jun 29, 2011, 8:00:02 AM6/29/11
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Package: proftpd-basic
Version: 1.3.3a-6squeeze1
Severity: normal

I have the same issue with reloading ProFTPD on my Debian Squeeze box:

root@bar:~# ps aux |grep proftp
proftpd 6065 0.0 0.0 87620 1952 ? Ss Jun28 0:04 proftpd:
(accepting connections)
root 18359 0.0 0.0 8692 828 pts/7 S+ 11:09 0:00 grep proftp

root@bar:~# /etc/init.d/proftpd reload
Reloading ftp server: proftpd.

root@bar:~# ps aux |grep proftp
root 18382 0.0 0.0 8688 828 pts/7 S+ 11:10 0:00 grep proftp

root@bar:~# tail -f /var/log/proftpd/proftpd.log
Jun 29 11:10:35 bar proftpd[6065] bar.mydomain.pl: received SIGHUP --
master server reparsing configuration file

root@bar:~# /etc/init.d/proftpd start
Starting ftp server: proftpd.

root@bar:~# ps aux |grep proftp
proftpd 18395 0.0 0.0 87624 1924 ? Ss 11:11 0:00 proftpd:
(accepting connections)
root 18402 0.0 0.0 8688 828 pts/7 S+ 11:11 0:00 grep proftp

root@bar:~# tail -f /var/log/proftpd/proftpd.log
Jun 29 11:11:05 bar proftpd[18395] bar.mydomain.pl: ProFTPD 1.3.3a (maint)
(built Mon Mar 7 2011 09:26:42 UTC) standalone mode STARTUP

-- System Information:
Debian Release: 6.0.2
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32-5-xen-amd64 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages proftpd-basic depends on:
ii adduser 3.112+nmu2 add and remove users and groups
ii debconf 1.5.36.1 Debian configuration
management sy
ii debianutils 3.4 Miscellaneous utilities
specific t
ii libacl1 2.2.49-4 Access control list shared
library
ii libattr1 1:2.4.44-2 Extended attribute shared
library
ii libc6 2.11.2-10 Embedded GNU C Library:
Shared lib
ii libcap2 1:2.19-3 support for getting/setting
POSIX.
ii libncurses5 5.7+20100313-5 shared libraries for terminal
hand
ii libpam-runtime 1.1.1-6.1 Runtime support for the PAM
librar
ii libpam0g 1.1.1-6.1 Pluggable Authentication
Modules l
ii libssl0.9.8 0.9.8o-4squeeze1 SSL shared libraries
ii libwrap0 7.6.q-19 Wietse Venema's TCP wrappers
libra
ii netbase 4.45 Basic TCP/IP networking system
ii sed 4.2.1-7 The GNU sed stream editor
ii ucf 3.0025+nmu1 Update Configuration File:
preserv
ii update-inetd 4.38+nmu1 inetd configuration file updater
ii zlib1g 1:1.2.3.4.dfsg-3 compression library - runtime

proftpd-basic recommends no packages.

Versions of packages proftpd-basic suggests:
pn openbsd-inetd | inet-superser <none> (no description available)
pn openssl <none> (no description available)
pn proftpd-doc <none> (no description available)
pn proftpd-mod-ldap <none> (no description available)
pn proftpd-mod-mysql <none> (no description available)
pn proftpd-mod-odbc <none> (no description available)
pn proftpd-mod-pgsql <none> (no description available)
pn proftpd-mod-sqlite <none> (no description available)

-- Configuration Files:
/etc/pam.d/proftpd changed:
auth required pam_listfile.so item=user sense=deny
file=/etc/ftpusers onerr=succeed
@include common-auth
@include common-account
session required pam_limits.so


-- debconf information:
* shared/proftpd/inetd_or_standalone: standalone

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Adam Lackorzynski

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Feb 9, 2013, 3:40:01 PM2/9/13
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Hi,

I was seeing the same issue on wheezy systems (x86 32 and 64 bit).
proftpd process segfaults on SIGHUP. After tracing this a bit the
segfault happens when processing restart events of the quotatab module.
Thus disabling quota modules in the config makes reload/SIGHUP work
again for me.


HTH,
Adam
--
Adam ad...@os.inf.tu-dresden.de
Lackorzynski http://os.inf.tu-dresden.de/~adam/

Francesco P. Lovergine

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Feb 15, 2013, 4:30:03 PM2/15/13
to
On Sat, Feb 09, 2013 at 09:14:55PM +0100, Adam Lackorzynski wrote:
> Hi,
>
> I was seeing the same issue on wheezy systems (x86 32 and 64 bit).
> proftpd process segfaults on SIGHUP. After tracing this a bit the
> segfault happens when processing restart events of the quotatab module.
> Thus disabling quota modules in the config makes reload/SIGHUP work
> again for me.
>

Thanks, it seems a cyclic problem in HUP, let me see if it can be squashed
on this basis.

--
Francesco P. Lovergine
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