[Bug 1971932] Re: error in rsync protocol data stream

[Lena Voytek]

I attempted to reproduce by running the command through localhost over
ssh and it succeeded using a 3GB file. This may be due to the transfer
between Ubuntu and Debian then. Here is my test case:

# lxc launch images:ubuntu/jammy test-rsync
# lxc exec test-rsync bash
# apt update && apt dist-upgrade -y
# apt install rsync openssh-server
# passwd ubuntu
# su ubuntu
# cd
# mkdir dest
# head -c 3GB /dev/urandom > test
# rsync -avz --stats -e ssh test localhost:~/dest/

@jmbaudach can you try to transfer your over 2GB file locally with ssh
to see if it fails there. That will help us narrow down the issue.

Thanks!

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Title:
  error in rsync protocol data stream

Status in rsync package in Ubuntu:
  Incomplete

Bug description:
  When synchronizing to other systems, rsync exits with "error in rsync
  protocol data stream (code 12)".

  The problem occurs since ubuntu 22.04 LTS with two different
  destination systems not running ubuntu but plain debian. The error did
  not occur under 20.04 LTS.

  Synchronisation runs fine for most other files, but always stops at
  the same (relative large) file. The file itself has also been changed
  on a test basis to make sure the file is not the problem itself.

  Log snippet:
  ------------

  ...
  chunk[46131] len=46120 offset=2127561720 sum1=2f48caf4
  chunk[46132] len=46120 offset=2127607840 sum1=5dfcb4ee
  chunk[46133] len=46120 offset=2127653960 sum1=d1037d81
  chunk[46134] len=8870 offset=2127700080 sum1=6deedc97
  send_files mapped /path/backup/subdir/.thunderbird/profile/ImapMail/imap.domain.com/INBOX of size 2135722584
  calling match_sums /path/backup/subdir/.thunderbird/profile/ImapMail/imap.domain.com/INBOX
  built hash table
  hash search b=46120 len=2135722584
  sum=1e1722dc k=46120
  hash search s->blength=46120 len=2135722584 count=46135
  potential match at 0 i=0 sum=1e1722dc
  match at 0 last_match=0 j=0 len=46120 n=0
  potential match at 46120 i=1 sum=c482d6b6
  match at 46120 last_match=46120 j=1 len=46120 n=0
  potential match at 92240 i=2 sum=b21c7e11
  match at 92240 last_match=92240 j=2 len=46120 n=0
  potential match at 138360 i=3 sum=d066473a
  match at 138360 last_match=138360 j=3 len=46120 n=0
  potential match at 184480 i=4 sum=a32a2984
  match at 184480 last_match=184480 j=4 len=46120 n=0
  potential match at 230600 i=5 sum=39cc049f
  match at 230600 last_match=230600 j=5 len=46120 n=0
  potential match at 276720 i=6 sum=ad3de98a
  match at 276720 last_match=276720 j=6 len=46120 n=0
  potential match at 322840 i=7 sum=83e16fa9
  match at 322840 last_match=322840 j=7 len=46120 n=0
  deflate on token returned 0 (8512 bytes left)
  rsync error: error in rsync protocol data stream (code 12) at token.c(476) [sender=3.2.3]
  [sender] _exit_cleanup(code=12, file=token.c, line=476): entered
  [sender] _exit_cleanup(code=12, file=token.c, line=476): about to call exit(12)

  Sender system: (rsync 3.2.3-8ubuntu3)
  -------------------------------------

  rsync  version 3.2.3  protocol version 31
  Copyright (C) 1996-2020 by Andrew Tridgell, Wayne Davison, and others.
  Web site: https://rsync.samba.org/
  Capabilities:
      64-bit files, 64-bit inums, 64-bit timestamps, 64-bit long ints,
      socketpairs, hardlinks, hardlink-specials, symlinks, IPv6, atimes,
      batchfiles, inplace, append, ACLs, xattrs, optional protect-args, iconv,
      symtimes, prealloc, stop-at, no crtimes
  Optimizations:
      SIMD, no asm, openssl-crypto
  Checksum list:
      xxh128 xxh3 xxh64 (xxhash) md5 md4 none
  Compress list:
      zstd lz4 zlibx zlib none

  rsync comes with ABSOLUTELY NO WARRANTY.  This is free software, and you
  are welcome to redistribute it under certain conditions.  See the GNU
  General Public Licence for details.

  Recipient systems: (rsync 3.1.3-6)
  ----------------------------------

  rsync  version 3.1.3  protocol version 31
  Copyright (C) 1996-2018 by Andrew Tridgell, Wayne Davison, and others.
  Web site: http://rsync.samba.org/
  Capabilities:
      64-bit files, 64-bit inums, 64-bit timestamps, 64-bit long ints,
      socketpairs, hardlinks, symlinks, IPv6, batchfiles, inplace,
      append, ACLs, xattrs, iconv, symtimes, prealloc

  rsync comes with ABSOLUTELY NO WARRANTY.  This is free software, and you
  are welcome to redistribute it under certain conditions.  See the GNU
  General Public Licence for details.

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