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i think it's not needed to install dpm-xrootd cause the crash happens before that plugin is loaded

just run xrootd with this conf file 

```
cat /etc/xrootd/xrootd-dpmdisk.cfg
ofs.trace all
xrd.trace all
cms.trace all
oss.trace all

all.adminpath /var/spool/xrootd
all.pidpath /var/run/xrootd
xrd.network nodnr

if exec xrootd
xrootd.seclib libXrdSec.so
sec.protocol /usr/lib64 gsi -crl:3 -key:/etc/grid-security/cert.pem -cert:/etc/grid-security/key.pem -md:sha256:sha1 -ca:2 -gmapopt:10 
sec.protocol /usr/lib64 unix
xrootd.export /
xrd.port 1095
ofs.osslib libXrdDPMOss.so.3
ofs.authlib libXrdDPMDiskAcc.so.3
ofs.authorize
ofs.persist auto hold 0
ofs.tpc pgm /usr/bin/xrdcp --server
all.role server
fi
```
the crash happens in the gsi plugin, so you need to have host certificates and certificates files from lcg-CA

my sysconfig file has 

```
[root@dpmdisk-trunk xrootd]# cat /etc/sysconfig/xrootd 
#-------------------------------------------------------------------------------
# Define the instances of xrootd, cmsd and frmd here and specify the option you
# need. For example, use the -d flag to send debug output to the logfile,
# the options responsible for daemonizing, pidfiles and instance naming will
# be appended automatically.
#-------------------------------------------------------------------------------

#-------------------------------------------------------------------------------
# Define the user account name which will be used to start the daemons.
# These may have many unexpected side effects, so be sure you know what you're
# doing before playing with them.
#-------------------------------------------------------------------------------
XROOTD_USER=dpmmgr
XROOTD_GROUP=dpmmgr

#-------------------------------------------------------------------------------
# Define the commandline options for the instances of the daemons.
# The format is:
# DAEMON_NAME_OPTIONS, where:
#   DAEMON - the daemon name, the valid values are: XROOTD, CMSD or FRMD
#   NAME   - the name of the instance, any uppercase alphanumeric string
#            without whitespaces is valid
#-------------------------------------------------------------------------------
XROOTD_DISK_OPTIONS="-l /var/log/xrootd/xrootd.log -c /etc/xrootd/xrootd-dpmdisk.cfg -k fifo"

#-------------------------------------------------------------------------------
# Names of the instances to be started by default, the case doesn't matter,
# the names will be converted to lowercase automatically, use space as a
# separator
#-------------------------------------------------------------------------------
XROOTD_INSTANCES="  disk"
```

so you need to add the dpmmgr user ( or another one  but then you need to change the conf)

i'm running then with gdb as follows

` gdb  --args /usr/bin/xrootd  -c /etc/xrootd/xrootd-dpmdisk.cfg -Rdpmmgr 
`



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