Hi all:
I am seeing corrupted directory listings using BackupPC_tarCreate. One
of the reported filenames has a bunch of nulls in the middle of it
using BackupPC-3.1.0.
I am doing a new BackupPC install and as part of the testing phase I
verify backups using:
BackupPC_tarCreate -l
whose output is compared against a find to see if any files are
missing. I also use
BackupPC_tarCreate | tar --compare
to validate the data. The file that is incorrectly listed seems to
verify ok as far as I can tell.
While running the verification procedures for BackupPC as we move it
to new box, I came across this problem:
Using:
sudo -u backup /tools/BackupPC/bin/BackupPC_tarCreate -h ops03.example.com \
-n -1 -l -s /var/www/html/cacti .| less
I see:
[normal listing]
./lib/adodb/drivers/adodb-informix72.inc.php
./lib/adodb/drivers/adodb-ldap.inc.php
./lib/adodb/drivers/adodb-mssql.inc.php
./lib/adodb/drivers/adodb-mssqlpo.inc.php
./l^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@@^@^@^@
[a ton more null characters]
^@^@ib/adodb/drivers/adodb-mysql.inc.php
./lib/adodb/drivers/adodb-mysqli.inc.php
./lib/adodb/drivers/adodb-mysqlt.inc.php
I found this when comparing the files list produced by BackupPC
against the list generated by find on the same backup share. The nulls
show up in less as well as od -c. Using -L rather than -l to getthe
listing has the same issue but 40 lines later:
100644 109/109 1935 ./lib/adodb/lang/adodb-pt-br.inc.php
100644 109/109 1895 ./lib/adodb/lang/adodb-ro.inc.php
100644 109/109 1954 ./lib/adodb/lang/adodb-ru1251.inc.php
100644 109/109 1828
./lib/ad^@^@^@^@ [...]
^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@odb/lang/adodb-sv.inc.php
100644 109/109 2002 ./lib/adodb/datadict/datadict-access.inc.php
100644 109/109 3936 ./lib/adodb/datadict/datadict-db2.inc.php
100644 109/109 3789 ./lib/adodb/datadict/datadict-firebird.inc.php
100644 109/109 2514 ./lib/adodb/datadict/datadict-generic.inc.php
Looking at the first directory in question doesn't show any nulls:
sudo ls
/backup-pc/pc/ops03.example.com/14/f%2fvar%2fwww%2fhtml%2fcacti/flib/fadodb/fdrivers
| cat -v
attrib
fadodb-access.inc.php
fadodb-ado5.inc.php
fadodb-ado_access.inc.php
fadodb-ado.inc.php
fadodb-ado_mssql.inc.php
fadodb-borland_ibase.inc.php
fadodb-csv.inc.php
fadodb-db2.inc.php
fadodb-fbsql.inc.php
fadodb-firebird.inc.php
fadodb-ibase.inc.php
fadodb-informix72.inc.php
fadodb-informix.inc.php
fadodb-ldap.inc.php
fadodb-mssql.inc.php
fadodb-mssqlpo.inc.php
fadodb-mysqli.inc.php
fadodb-mysql.inc.php
fadodb-mysqlt.inc.php
fadodb-netezza.inc.php
fadodb-oci805.inc.php
fadodb-oci8.inc.php
fadodb-oci8po.inc.php
fadodb-odbc.inc.php
fadodb-odbc_mssql.inc.php
fadodb-odbc_oracle.inc.php
fadodb-odbtp.inc.php
fadodb-odbtp_unicode.inc.php
fadodb-oracle.inc.php
fadodb-pdo.inc.php
fadodb-postgres64.inc.php
fadodb-postgres7.inc.php
fadodb-postgres.inc.php
fadodb-proxy.inc.php
fadodb-sapdb.inc.php
fadodb-sqlanywhere.inc.php
fadodb-sqlite.inc.php
fadodb-sqlitepo.inc.php
fadodb-sybase.inc.php
fadodb-vfp.inc.php
Using od -c in place of cat -v doesn't show any null characters
either, so the listing issue isn't a result of some wierd form of
filesystem corruption AFAICT. Anybody have any idea what's happening
here?
Anything I can flip on to get better debugging to get this fixed? This
could be a 64 bit issue as all the prior backuppc installs I have done
are 32 bit, but this newer box is also handling more data as as well
so ....
Some vital stats:
OS: centos 5.2
BackupPC version: 3.1.0
uname -a: Linux ops03.example.com 2.6.18-92.1.22.el5 #1 SMP
Tue Dec 16 11:57:43 EST 2008 x86_64 x86_64 x86_64 GNU/Linux
filesystem: ext3 on a raid 6 array:
/dev/md1 4.5T 462G 3.8T 11% /disk/md1
tune2fs -l on device:
tune2fs 1.39 (29-May-2006)
Filesystem volume name: <none>
Last mounted on: <not available>
Filesystem UUID: 83165372-7c6b-4fdf-804e-e474df128a45
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index
filetype needs_recovery sparse_super large_file
Default mount options: (none)
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 1220968448
Block count: 1220966208
Reserved block count: 61048310
Free blocks: 1124763690
Free inodes: 1218526277
First block: 0
Block size: 4096
Fragment size: 4096
Reserved GDT blocks: 732
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 32768
Inode blocks per group: 1024
Filesystem created: Mon Feb 9 18:35:42 2009
Last mount time: Fri Feb 27 22:07:59 2009
Last write time: Fri Feb 27 22:07:59 2009
Mount count: 7
Maximum mount count: 21
Last checked: Mon Feb 16 18:34:36 2009
Check interval: 15552000 (6 months)
Next check after: Sat Aug 15 18:34:36 2009
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 128
Journal inode: 8
Default directory hash: tea
Directory Hash Seed: 96a10d7c-0695-4ff7-a26d-e01943d03693
Journal backup: inode blocks
perl -V:
Summary of my perl5 (revision 5 version 8 subversion 8) configuration:
Platform:
osname=linux, osvers=2.6.18-53.el5,
archname=x86_64-linux-thread-multi
uname='linux builder10.centos.org 2.6.18-53.el5 #1 smp mon nov 12
02:14:55 est 2007 x86_64 x86_64 x86_64 gnulinux '
config_args='-des -Doptimize=-O2 -g -pipe -Wall
-Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
--param=ssp-buffer-size=4 -m64 -mtune=generic -Dversion=5.8.8
-Dmyhostname=localhost -Dperladmin=root@localhost -Dcc=gcc -Dcf_by=Red
Hat, Inc. -Dinstallprefix=/usr -Dprefix=/usr -Dlibpth=/usr/local/lib64
/lib64 /usr/lib64 -Dprivlib=/usr/lib/perl5/5.8.8
-Dsitelib=/usr/lib/perl5/site_perl/5.8.8
-Dvendorlib=/usr/lib/perl5/vendor_perl/5.8.8
-Darchlib=/usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi
-Dsitearch=/usr/lib64/perl5/site_perl/5.8.8/x86_64-linux-thread-multi
-Dvendorarch=/usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux-thread-multi
-Darchname=x86_64-linux -Dvendorprefix=/usr -Dsiteprefix=/usr
-Duseshrplib -Dusethreads -Duseithreads -Duselargefiles -Dd_dosuid
-Dd_semctl_semun -Di_db -Ui_ndbm -Di_gdbm -Di_shadow -Di_syslog
-Dman3ext=3pm -Duseperlio -Dinstallusrbinperl=n -Ubincompat5005
-Uversiononly -Dpager=/usr/bin/less -isr -Dd_gethostent_r_proto
-Ud_endhostent_r_proto -Ud_sethostent_r_proto -Ud_endprotoent_r_proto
-Ud_setprotoent_r_proto -Ud_endservent_r_proto -Ud_setservent_r_proto
-Dinc_version_list=5.8.7 5.8.6 5.8.5 -Dscriptdir=/usr/bin'
hint=recommended, useposix=true, d_sigaction=define
usethreads=define use5005threads=undef useithreads=define
usemultiplicity=define
useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
use64bitint=define use64bitall=define uselongdouble=undef
usemymalloc=n, bincompat5005=undef
Compiler:
cc='gcc', ccflags ='-D_REENTRANT -D_GNU_SOURCE
-fno-strict-aliasing -pipe -Wdeclaration-after-statement
-I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64
-I/usr/include/gdbm',
optimize='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions
-fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic',
cppflags='-D_REENTRANT -D_GNU_SOURCE -fno-strict-aliasing -pipe
-Wdeclaration-after-statement -I/usr/local/include
-I/usr/include/gdbm'
ccversion='', gccversion='4.1.2 20071124 (Red Hat 4.1.2-42)',
gccosandvers=''
intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678
d_longlong=define, longlongsize=8, d_longdbl=define,
longdblsize=16
ivtype='long', ivsize=8, nvtype='double', nvsize=8, Off_t='off_t',
lseeksize=8
alignbytes=8, prototype=define
Linker and Libraries:
ld='gcc', ldflags =''
libpth=/usr/local/lib64 /lib64 /usr/lib64
libs=-lresolv -lnsl -lgdbm -ldb -ldl -lm -lcrypt -lutil -lpthread
-lc
perllibs=-lresolv -lnsl -ldl -lm -lcrypt -lutil -lpthread -lc
libc=, so=so, useshrplib=true, libperl=libperl.so
gnulibc_version='2.5'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E
-Wl,-rpath,/usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi/CORE'
cccdlflags='-fPIC', lddlflags='-shared -O2 -g -pipe -Wall
-Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
--param=ssp-buffer-size=4 -m64 -mtune=generic'
Characteristics of this binary (from libperl):
Compile-time options: MULTIPLICITY PERL_IMPLICIT_CONTEXT
PERL_MALLOC_WRAP USE_64_BIT_ALL USE_64_BIT_INT
USE_ITHREADS USE_LARGE_FILES USE_PERLIO
USE_REENTRANT_API
Built under linux
Compiled at Sep 17 2008 13:37:41
@INC:
/usr/lib64/perl5/site_perl/5.8.8/x86_64-linux-thread-multi
/usr/lib64/perl5/site_perl/5.8.7/x86_64-linux-thread-multi
/usr/lib64/perl5/site_perl/5.8.6/x86_64-linux-thread-multi
/usr/lib64/perl5/site_perl/5.8.5/x86_64-linux-thread-multi
/usr/lib/perl5/site_perl/5.8.8
/usr/lib/perl5/site_perl/5.8.7
/usr/lib/perl5/site_perl/5.8.6
/usr/lib/perl5/site_perl/5.8.5
/usr/lib/perl5/site_perl
/usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux-thread-multi
/usr/lib64/perl5/vendor_perl/5.8.7/x86_64-linux-thread-multi
/usr/lib64/perl5/vendor_perl/5.8.6/x86_64-linux-thread-multi
/usr/lib64/perl5/vendor_perl/5.8.5/x86_64-linux-thread-multi
/usr/lib/perl5/vendor_perl/5.8.8
/usr/lib/perl5/vendor_perl/5.8.7
/usr/lib/perl5/vendor_perl/5.8.6
/usr/lib/perl5/vendor_perl/5.8.5
/usr/lib/perl5/vendor_perl
/usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi
/usr/lib/perl5/5.8.8
.
--
-- rouilj
John Rouillard
System Administrator
Renesys Corporation
603-244-9084 (cell)
603-643-9300 x 111
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