1.5.25: rsync hangs

[Dat Head <dathead2 at gmail dot com>]

rsync frequently hangs on me in some socket call - this is after i
have used it before in
the current session usually.  it is not repeatable on demand - it just
sometimes gets into
this state.

here is the strace output:

   85  679411 [select_socket] rsync 3588 thread_socket: write_ready
14494  680328 [sig] rsync 1844 wait_sig: signalling pack.wakeup 0x654
  502  680830 [main] rsync 1844 sig_send: returning 0x0 from sending signal -34
   65  680895 [main] rsync 1844 writev: writev (4, 0x22B610, 1)
 2464  683359 [main] rsync 1844 writev: 4 = write (4, 0x22B610, 1), errno 0
   82  683441 [main] rsync 1844 cygwin_select: 6, 0x22A3E0, 0x22A3D8,
0x0, 0x22A3D0
   66  683507 [main] rsync 1844 dtable::select_read:  fd 5
   32  683539 [main] rsync 1844 cygwin_select: to->tv_sec 60,
to->tv_usec 0, ms 60000
   32  683571 [main] rsync 1844 cygwin_select: sel.always_ready 0
 4230  683641 [main] rsync 3588 select_stuff::wait: m 2, ms 60000
   40  683681 [main] rsync 3588 select_stuff::wait: woke up.  wait_ret
1.  verifying
   33  683714 [main] rsync 3588 select_stuff::wait: gotone 1
   31  683745 [main] rsync 3588 select_stuff::wait: returning 0
   31  683776 [main] rsync 3588 select_stuff::cleanup: calling cleanup routines
  444  684015 [main] rsync 1844 start_thread_socket: Handle 0x688
   35  684050 [main] rsync 1844 start_thread_socket: Added to readfds
   32  684082 [main] rsync 1844 start_thread_socket: exitsock 0x6B8
   32  684114 [main] rsync 1844 start_thread_socket: stuff_start 0x22A344
 1226  685002 [main] rsync 3588 socket_cleanup: si 0x10012A98
si->thread 0x61106F30
  119  685121 [main] rsync 3588 socket_cleanup: sent a byte to
exitsock 0x7F0, res -1
   64  685185 [main] rsync 3588 socket_cleanup: reading a byte from
exitsock 0x7F0
 1201  685315 [main] rsync 1844 select_stuff::wait: m 2, ms 60000
  407  685722 [select_socket] rsync 1844 thread_socket: stuff_start 0x10015B04

can't recall if it hangs with just simple flags -avx (note, no ssh
involved, just local copy),
but it for sure does when i use these:

RSYNC_MAX_DELETE=${RSYNC_MAX_DELETE:-500}
RSYNC_MODIFY_WINDOW=${RSYNC_MODIFY_WINDOW:-10}

set -x
rsync \
  --archive \
  --verbose \
  --one-file-system \
  --delete-before \
  --max-delete=$RSYNC_MAX_DELETE \
  --itemize-changes \
  --human-readable \
  --progress \
  --modify-window=$RSYNC_MODIFY_WINDOW \
  --exclude="System Volume Information" \
  --exclude=Recycled \
  --exclude="lost+found" \
  --exclude=RECYCLER \
  --exclude='*DONOTDELETE*' \
 $source $target

Attachment: cygcheck_output.txt
Description: Text document

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