I'm running 2.5.1pre3 and seeing lots hangs as well. Under
2.4.6+Waynes_nohang, I didn't have trouble this bad before.
SRC: solaris 2.7, netapps nfs tree
DST: solaris 2.8, linux 2.[2,4].*
TRANSPORT: ssh
This setup has worked well for months before the upgrade to 2.5.1.pre3.
I have not tried the -vvv. I'll try that and see what it does.
Sure seems like a timing problem.
eric
Ed Santiago wrote:
>
> rsync 2.5.0 still has a bug where it hangs under some circumstances.
>
> The hang is beyond my abilities to track down. I'll keep trying,
> though, but here are details in case they're of use to anyone else:
>
> - Code configured & built on Solaris 2.5.1.
> - Same binary run on Solaris 2.5.1 (client) and 2.8 (server).
> - Using rsh transport, but also fails with ssh
> - Does not fail with local-local rsync
>
> - Source directory (on server) is NFS-mounted, from NetApp filer
> - Destination directory (on client) is local (tested NFS, also hangs)
>
> - Consistently hangs with -vv, never (so far) with -vvv
>
> Included below are three stack traces, one on the server and two
> on the client. This is a pretty consistent feature: The client
> and server appear to be deadlocked waiting for each other.
>
> Also attached below are a script for populating a sample hierarchy,
> and the rsync invocation.
>
> Backtrace on server:
>
> #0 0xff218224 in _poll ()
> #1 0xff1cb808 in _select ()
> #2 0x24bec in writefd_unbuffered (fd=1, buf=0xffbe5ed0 ">", len=66)
> at io.c:406
> #3 0x24eac in mplex_write (fd=1, code=62, buf=0x591d8 "\a\020", len=62)
> at io.c:498
> #4 0x24f24 in io_flush () at io.c:518
> #5 0x24940 in readfd (fd=0, buffer=0xffbe7020 "ï\002r\215©/\201R", N=4)
> at io.c:314
> #6 0x24998 in read_int (f=0) at io.c:329
> #7 0x199a4 in send_files (flist=0x574e8, f_out=1, f_in=0) at sender.c:110
> #8 0x1d1e8 in do_server_sender (f_in=0, f_out=1, argc=1, argv=0x56f74)
> at main.c:300
> #9 0x1d708 in start_server (f_in=0, f_out=1, argc=2, argv=0x56f70)
> at main.c:476
> #10 0x1e08c in main (argc=2, argv=0x56f70) at main.c:838
>
> Backtrace #1 on client (the parent):
>
> #0 0xef5b7904 in _poll ()
> #1 0xef5d3d40 in _select ()
> #2 0x24644 in read_timeout (fd=6, buf=0xeffff348 "ÿÿÿÿ", len=4) at io.c:191
> #3 0x247dc in read_unbuffered (fd=6, buf=0xeffff348 "ÿÿÿÿ", len=4) at io.c:263
> #4 0x24950 in readfd (fd=6, buffer=0xeffff348 "ÿÿÿÿ", N=4) at io.c:316
> #5 0x24998 in read_int (f=6) at io.c:329
> #6 0x184e8 in generate_files (f=5, flist=0x57520, local_name=0x0, f_recv=6)
> at generator.c:471
> #7 0x1d3fc in do_recv (f_in=4, f_out=5, flist=0x57520, local_name=0x0)
> at main.c:379
> #8 0x1d958 in client_run (f_in=4, f_out=5, pid=22226, argc=1, argv=0x56f74)
> at main.c:558
> #9 0x1ddc0 in start_client (argc=1, argv=0x56f74) at main.c:731
> #10 0x1e098 in main (argc=2, argv=0x56f70) at main.c:841
>
> Backtrace #2 on client (child):
>
> #0 0xef5b7904 in _poll ()
> #1 0xef5d3d40 in _select ()
> #2 0x24644 in read_timeout (fd=4, buf=0xefffe680 "", len=4) at io.c:191
> #3 0x24788 in read_loop (fd=4, buf=0xefffe680 "", len=4) at io.c:242
> #4 0x24824 in read_unbuffered (fd=4, buf=0xefffe680 "", len=4) at io.c:268
> #5 0x24950 in readfd (fd=4, buffer=0xefffe680 "", N=4) at io.c:316
> #6 0x24998 in read_int (f=4) at io.c:329
> #7 0x18eec in recv_files (f_in=4, flist=0x57520, local_name=0x0, f_gen=8)
> at receiver.c:328
> #8 0x1d374 in do_recv (f_in=4, f_out=5, flist=0x57520, local_name=0x0)
> at main.c:357
> #9 0x1d958 in client_run (f_in=4, f_out=5, pid=22226, argc=1, argv=0x56f74)
> at main.c:558
> #10 0x1ddc0 in start_client (argc=1, argv=0x56f74) at main.c:731
> #11 0x1e098 in main (argc=2, argv=0x56f70) at main.c:841
>
> --------
>
> The above rsync compiled from CVS repository on Thursday 13 Dec,
> early AM. I've just now (Mon 17 Dec 08:19 Mountain Time) updated,
> rebuilt, and rerun the tests. Same hang.
>
> The script below can be used to populate a directory hierarchy. It
> creates subdirectories 00 through 99 under "src-test/CVSROOT"
> (up to you to mkdir that), then a number of files in each subdir:
>
> ------------------------------------------------------------------------
> #!/sw/tools/bin/Perl -w
>
> use strict;
>
> # up to caller to do: mkdir -p src-test/CVSROOT
> my $sub = 'src-test/CVSROOT';
> -d $sub
> or die "You're cd'ed to the wrong directory\n";
>
> foreach my $i (0..99) {
> my $d = sprintf("%02d", $i);
> mkdir "$sub/$d", 02775;
>
> foreach my $j (1..99) {
> my $f = "$sub/$d/$j$d";
> open OUT, '>', $f;
> print OUT $f, "\n";
> close OUT or die "error writing $f: $!\n";
> }
> }
>
> ------------------------------------------------------------------------
> This is the rsync invocation:
>
> ------------------------------------------------------------------------
> #!/bin/sh
>
> CMD=/home/santiago/src/rsync/rsync/rsync.solaris
>
> $CMD -z -avv --stats --delete \
> --rsync-path=$CMD.nopur \
> --timeout=600 \
> "cvsroot.eng.ascend.com:/home/santiago/tmp/rsync-test/src-test/CVSROOT"
>./results
>
> ------------------------------------------------------------------------
> Thanks in advance for any help,
> ^E
> --
> Ed Santiago Toolsmith [EMAIL PROTECTED]
