[BackupPC-users] BackupPC_dump hangs with: .: size doesn't match

Hi folks,

Back in April, there was a discussion on the mailing list about this 
problem with no apparent resolution:

http://www.adsm.org/lists/cgi-bin/namazu.cgi?query=%2Bsubject:%2F^%28%3F:^\s*%28re|sv|fwd|fw%29[\[\]\d]*[:%3E-]%2B\s*%29*\[BackupPC\-users\]\s%2BBackupPC_dump\s%2Bhangs\s%2Bwith\:\s%2B\.\:\s%2Bsize\s%2Bdoesn\%27t\s%2Bmatch\s%2B\%2812288\s%2Bvs\s%2B17592185913344\%29\s*%24%2F&idxname=BackupPC-users&sort=date%3Alate

I have now encountered it in backups from two separate machines: one 
Solaris, one Debian.  Both are being backed up to a Debian BackupPC server.

The last lines in the log are included below:

Can't open /var/lib/backuppc/pc/ralph2/38/f%2fdata/fapps for MD4 check 
(err=-3, apps)
apps got exact match
apps got digests 00004347020000010000000000000000 vs
apps: md4 doesn't match: will retry in phase 1; file removed
Must redo 2 (apps)\n
Got redo 2
Starting file 0 (.), blkCnt=1426063360, blkSize=12612, remainder=1212350464
.: size doesn't match (4096 vs 17986723434172)
Child is sending done
Got done from child
Got stats: 0 0 0 0 ('errorCnt' => 1,'ExistFileSize' => 0,'ExistFileCnt' 
=> 0,'TotalFileCnt' => 0,'ExistFileCompSize' => 0,'TotalFileSize' => 0)
finish: removing in-process file .
attribWrite(dir=f%2fdata) -> /var/lib/backuppc/pc/ralph2/new/f%2fdata/attrib
Child is aborting
Got exit from child
Done: 0 files, 0 bytes
Got fatal error during xfer (aborted by user (signal=INT))
Backup aborted by user signal

Note that the file /var/lib/backuppc/pc/ralph2/38/f%2fdata/fapps does 
actually exist, is a directory, and can be read by the backuppc user.

I eventually had to cancel the transfer because it was hanging, though 
it would eventually die with ALRM otherwise.

This is BackupPC 3.1.0 on Debian squeeze.

What can I do to help track down this problem?  John Rouillard, did you 
ever find a solution to your issue?

Thanks,

-- John

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