[Bug 349919] Re: ssh client sometimes hangs
Just upgraded to 9.10 - Karmic. Agree with Thierry Carrez that bug is not reproducible on Karmic (3000 iterations of the "while :; do ssh localhost date; done" loop without a hang (8.10 and 9.04 would always hang in <100 iterations). -- ssh client sometimes hangs https://bugs.launchpad.net/bugs/349919 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 349919] Re: ssh client sometimes hangs
I can confirm the bug in Karmic when logging in from a Jaunty one. Steps: 1)>ssh -X karmicmachine 2)>gnome-system-monitor & 3)wait for gnome-system-monitor to show up and close it 4)>ps (you will see 'dbus-launch' apart from 'bash' and 'ps') 5)>exit 6)ssh hangs :( The problem seem to be related to dbus-launch somehow, because when i kill it before typing 'exit', ssh logs out without troubles. -- ssh client sometimes hangs https://bugs.launchpad.net/bugs/349919 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 349919] Re: ssh client sometimes hangs
Can't reproduce on karmic. Please reopen if the bug is still present for you in that release. ** Changed in: openssh (Ubuntu) Importance: Undecided => Low ** Changed in: openssh (Ubuntu) Status: New => Fix Released -- ssh client sometimes hangs https://bugs.launchpad.net/bugs/349919 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 349919] Re: ssh client sometimes hangs
On jaunty 9.04, i386 I experience the same bug. Sometimes, when logging out the remote shell, ssh freezes locally after saying "logout". In such cases I have to use Ctrl-C. The bug seem happen more often when tunneling graphics, than when not using this ability. The bug is not critical, however, because Ctrl-C has allways helped. -- ssh client sometimes hangs https://bugs.launchpad.net/bugs/349919 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 349919] Re: ssh client sometimes hangs
Just upgraded to 9.04 (Jaunty Jackalope). No change in behaviour. The while : do ssh localhost date done loop still hangs periodically (and can often be unjammed by running another "ssh somesystem ..." in another terminal window. -- ssh client sometimes hangs https://bugs.launchpad.net/bugs/349919 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 349919] Re: ssh client sometimes hangs
** Description changed: $ lsb_release -rd Description: Ubuntu 8.10 Release: 8.10 $ apt-cache policy openssh-client openssh-client: Installed: 1:5.1p1-3ubuntu1 Candidate: 1:5.1p1-3ubuntu1 Version table: *** 1:5.1p1-3ubuntu1 0 500 http://us.archive.ubuntu.com intrepid/main Packages 100 /var/lib/dpkg/status I have .ssh key files that I generated years ago. I copied them to ~/.ssh on my ubuntu system. Most of the time when I use ssh to run a command on another system it works fine. Once in 50 times ssh hangs locally. This is not a network problem ... same issue happens with "localhost". E.g. if I run: $ while : > do ssh localhost date > done It will print the date a few dozen times, then the loop hangs (^C interrupts it). I tried using strace to see what was happening. The ssh process was hung reading from a socket. Looking back through the strace, the socket was connected to some local keyring thing. Here are some relevent lines from strace output: socket(PF_FILE, SOCK_STREAM, 0) = 4 fcntl(4, F_SETFD, FD_CLOEXEC) = 0 connect(4, {sa_family=AF_FILE, path="/tmp/keyring-fed2nU/ssh"}, 110) = 0 write(4, "\0\0\0\1", 4) = 4 write(4, "\v", 1) = 1 read(4, "\0\0\2h", 4) = 4 read(4, "\f\0\0\0\2\0\0\0\225\0\0\0\7ssh-rsa\0\0\0\1#\0\0\0\201"..., 616) = 616 write(3, "$K \250\310\200\247\266-\25\257\212f\226h\234\f\275a\310"..., 64) = 64 select(4, [3], NULL, NULL, NULL)= 1 (in [3]) read(3, "\34t\351\267\262/\362\315\33\r\3019\301\361dX\264\276\377"..., 8192) = 80 futex(0x7f956651f2e0, 0x81 /* FUTEX_??? */, 2147483647) = 0 futex(0x7f956651f160, 0x81 /* FUTEX_??? */, 2147483647) = 0 futex(0x7f9567385450, 0x81 /* FUTEX_??? */, 2147483647) = 0 futex(0x7f9567159590, 0x81 /* FUTEX_??? */, 2147483647) = 0 futex(0x7f95671599d0, 0x81 /* FUTEX_??? */, 2147483647) = 0 open("/dev/urandom", O_RDONLY) = 5 fstat(5, {st_mode=S_IFCHR|0666, st_rdev=makedev(1, 9), ...}) = 0 read(5, "\21\207y;\216\357\361\37\310\230\300\211GYpr\236a\235\t"..., 20) = 20 close(5)= 0 write(3, "\314\331h\3711\274\2...@\201\201vg\ro\230\273d\277&8X2"..., 240) = 240 select(4, [3], NULL, NULL, NULL)= 1 (in [3]) read(3, "\234?r\352\30(\373T\277!bm\224W\30P\247\270\313\234\341"..., 8192) = 192 brk(0x7f95690d9000) = 0x7f95690d9000 brk(0x7f95690d8000) = 0x7f95690d8000 write(4, "\0\0\1\207", 4) = 4 write(4, "\r\0\0\0\225\0\0\0\7ssh-rsa\0\0\0\1#\0\0\0\201\0\300\r"..., 391) = 391 read(4, 0x7fff703fa880, 4) = ? ERESTARTSYS (To be restarted) --- SIGINT (Interrupt) @ 0 (0) --- +++ killed by SIGINT +++ + + + A hung ssh process is often revived when some other outging ssh request + is initiated. Quite often the snoozy process wakes up and runs normally. + But sometimes it wakes up and reports a failed connection. -- ssh client sometimes hangs https://bugs.launchpad.net/bugs/349919 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs