Package: sshfs
Version: 2.0-2
Severity: important
The following steps lead to the situation:
1 Mount a directory from another computer in the
local network (no firewall etc in between) with
standard sshfs options like
sshfs [EMAIL PROTECTED]:/home/user mountpoint
2 Use ANY application (graphical or command line)
to write a file to a directory inside the mountpoint.
3 Application hangs, the file has been created, but
it is zero bytes in size on the destination computer.
On the computer that mounted the directory all further
requests to the mountpoint fail making the applications
hang.
Read operations do not hang PRIOR to the first write,
then all reads hang.
The traces were generated using a simple cp command to
copy one single file.
I had been using sshfs for quite some time and it had
been reliable even with terabytes of data, but some
update in the last week must have broken the program.
Possibly one of the latest libc6 or ssh updates.
*** sshfs-debug.txt
sshfs -odebug,sshfs_debug,loglevel=debug [EMAIL PROTECTED]:/home/ajw Hypatia
SSHFS version 2.0
executing ssh -x -a -oClearAllForwardings=yes -ologlevel=debug -2
[EMAIL PROTECTED] -s sftp
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to hypatia [192.168.0.3] port 22.
debug1: Connection established.
debug1: identity file /home/ajw/.ssh/id_rsa type 1
debug1: identity file /home/ajw/.ssh/id_dsa type -1
debug1: Remote protocol version 1.99, remote software version OpenSSH_4.2
debug1: match: OpenSSH_4.2 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_4.7p1 Debian-12
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server-client aes128-cbc hmac-md5 none
debug1: kex: client-server aes128-cbc hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(102410248192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host 'hypatia' is known and matches the RSA host key.
debug1: Found key in /home/ajw/.ssh/known_hosts:7
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,keyboard-interactive
debug1: Next authentication method: publickey
debug1: Offering public key: /home/ajw/.ssh/id_rsa
debug1: Authentications that can continue: publickey,keyboard-interactive
debug1: Trying private key: /home/ajw/.ssh/id_dsa
debug1: Next authentication method: keyboard-interactive
Password:
debug1: Authentication succeeded (keyboard-interactive).
debug1: channel 0: new [client-session]
debug1: Entering interactive session.
debug1: Sending environment.
debug1: Sending env LANG = de_DE.UTF-8
debug1: Sending subsystem: sftp
Server version: 3
unique: 1, opcode: INIT (26), nodeid: 0, insize: 56
INIT: 7.9
flags=0x000b
max_readahead=0x0002
INIT: 7.8
flags=0x0001
max_readahead=0x0002
max_write=0x0001
unique: 1, error: 0 (Success), outsize: 40
unique: 2, opcode: LOOKUP (1), nodeid: 1, insize: 45
LOOKUP /Temp
[1] LSTAT
[1] ATTRS 41bytes (0ms)
NODEID: 2
unique: 2, error: 0 (Success), outsize: 136
unique: 3, opcode: LOOKUP (1), nodeid: 2, insize: 54
LOOKUP /Temp/picture10.png
[2] LSTAT
[2] STATUS 33bytes (0ms)
unique: 3, error: -2 (No such file or directory), outsize: 16
unique: 4, opcode: LOOKUP (1), nodeid: 2, insize: 54
LOOKUP /Temp/picture10.png
[3] LSTAT
[3] STATUS 33bytes (0ms)
unique: 4, error: -2 (No such file or directory), outsize: 16
unique: 5, opcode: CREATE (35), nodeid: 2, insize: 62
[4] OPEN
[5] LSTAT
[4] HANDLE 17bytes (0ms)
[5] ATTRS 41bytes (0ms)
[6] FSTAT
[6] ATTRS 41bytes (0ms)
NODEID: 3
unique: 5, error: 0 (Success), outsize: 152
CREATE[6598864] flags: 0x80c1 /Temp/picture10.png
unique: 6, opcode: GETXATTR (22), nodeid: 3, insize: 68
unique: 6, error: -38 (Function not implemented), outsize: 16
unique: 7, opcode: WRITE (16), nodeid: 3, insize: 4160
WRITE[6598864] 4096 bytes to 0
[7] WRITE
WRITE[6598864] 4096 bytes
unique: 7, error: 0 (Success), outsize: 24
unique: 8, opcode: WRITE (16), nodeid: 3, insize: 4160
WRITE[6598864] 4096 bytes to 4096
[8] WRITE
WRITE[6598864] 4096 bytes
unique: 8, error: 0 (Success), outsize: 24
unique: 9, opcode: WRITE (16), nodeid: 3, insize: 4160
WRITE[6598864] 4096 bytes to 8192
[9] WRITE
WRITE[6598864] 4096 bytes
unique: 9, error: 0 (Success), outsize: 24
unique: 10, opcode: WRITE (16), nodeid: 3, insize: 4160
WRITE[6598864] 4096 bytes to 12288
[00010] WRITE
WRITE[6598864] 4096 bytes
unique: 10, error: 0 (Success), outsize: 24
unique: 11, opcode:
