Hi evrybody,

here is a bug I filed sometime ago to the Debian bugtracking system.
Got no feedback from there. So I try it here. There is one additional
piece of information I forgot in the initial bug: The clients which
caused the trouble use a CryptoFS as home directory.

Debian bug ID is #382513.

Any ideas?

Regards
Harald Wilhelmi


----- Forwarded message from Harald Wilhelmi <[EMAIL PROTECTED]> -----

From: Harald Wilhelmi <[EMAIL PROTECTED]>
To: Debian Bug Tracking System <[EMAIL PROTECTED]>
Subject: backuppc: Segmenation fault in BackupPC_dump

Package: backuppc
Severity: important


When running

    /usr/share/backuppc/bin/BackupPC_dump -v -f <client>

on our backup server process dies with signal 11 (segmenation fault)
after some time. This is 100% reproducable for some clients but
has not happened for others. On the client system we use mostly
for testing, the problem appears in a maildir directory with about
5000 files. The last lines of the log:

home/harald/Mail/verwaltung/cur/1109618977.3272_59.schnake:2,S got digests 
1ca13600be6b6b4248e201fc23488bb2 vs 1ca13600be6b6b4248e201fc23488bb2
  create   600 1000/1000       12481 
home/harald/Mail/verwaltung/cur/1109618977.3272_59.schnake:2,S
home/harald/Mail/verwaltung/cur/1109618980.3272_62.schnake:2,S got digests 
55d3397354e26a6cea55392744113669 vs 55d3397354e26a6cea55392744113669
  create   600 1000/1000        1952 
home/harald/Mail/verwaltung/cur/1109618980.3272_62.schnake:2,S
home/harald/Mail/verwaltung/cur/1109619100.3272_86.schnake:2,S got digests 
2e42443954bb5f9f41c78017492e6d47 vs 2e42443954bb5f9f41c78017492e6d47
  create   600 1000/1000       42742
home/harald/Mail/verwaltung/cur/1109619100.3272_86.schnake:2,S
Segmentation fault (core dumped)

When looking at the core it looks like that:

(gdb) backtrace
#0  0xb7e61203 in strlen () from /lib/tls/libc.so.6
#1  0x080cbe90 in Perl_newSVpv ()
#2  0xb7d47015 in XS_File__RsyncP__FileList_get () from 
/usr/local/lib/perl/5.8.8/auto/File/RsyncP/FileList/FileList.so
#3  0x080c4981 in Perl_pp_entersub ()
#4  0x080bd469 in Perl_runops_standard ()
#5  0x0806520b in perl_run ()
#6  0x0805ffcd in main ()

Unluckily that was not helpful for me.

We tried to solve the problem by updating backuppc (Debian
testing newest version) and the File::RsyncP module (directly
from CPAN). That didn't changed the behavior. We also played
around with the rsync options (using -D instead of --devices
now). Also no change.  We exchanged the rsync version on the
client going from 2.6.8 back to 2.6.4. No change.

Presently we use a Debian/testing with:
 backuppc                                    2.1.2-5 
 perl                                        5.8.8-4
 ibc6                                        2.3.6-7
 File::RsyncP               0.64 (CPAN - not Debian)
 Kernel                                      2.6.15-1-686


----- End forwarded message -----

-- 

-------------------------------------------------------------------
Harald Wilhelmi 
Partner 
EMail: [EMAIL PROTECTED]     *     Phone: +49(89)21589960
TNG Technology Consulting GmbH * Betastr. 13A * 85774 Unterfoehring

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