[Bug 967] Command only sessions hangs on target system.

[bugzilla-daemon at mindrot.org]

http://bugzilla.mindrot.org/show_bug.cgi?id=967





------- Additional Comments From dimitrij at schlund.de  2005-01-10 19:54 -------
This problem still exists with 3.9p1-1 from debian/experimental too.

strace:
Process 11107 attached - interrupt to quit
futex(0xb7e573cc, FUTEX_WAIT, 2, NULL^X <unfinished ...>

gdb:
balancedev2:~# gdb -p 11107
GNU gdb 6.3-debian
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i386-linux".
Attaching to process 11107
Using host libthread_db library "/lib/tls/libthread_db.so.1".

warning: could not load vsyscall page because no executable was specified

warning: try using the "file" command first
Reading symbols from /usr/sbin/sshd...(no debugging symbols found)...done.
Reading symbols from /lib/libwrap.so.0...(no debugging symbols found)...done.
Loaded symbols for /lib/libwrap.so.0
Reading symbols from /lib/libpam.so.0...
(no debugging symbols found)...done.
Loaded symbols for /lib/libpam.so.0
Reading symbols from /lib/tls/libdl.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib/tls/libdl.so.2
Reading symbols from /lib/tls/libresolv.so.2...
(no debugging symbols found)...done.
Loaded symbols for /lib/tls/libresolv.so.2
Reading symbols from /usr/lib/i686/cmov/libcrypto.so.0.9.7...(no debugging
symbols found)...done.
Loaded symbols for /usr/lib/i686/cmov/libcrypto.so.0.9.7
Reading symbols from /lib/tls/libutil.so.1...
(no debugging symbols found)...done.
Loaded symbols for /lib/tls/libutil.so.1
Reading symbols from /usr/lib/libz.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libz.so.1
Reading symbols from /lib/tls/libnsl.so.1...
(no debugging symbols found)...done.
Loaded symbols for /lib/tls/libnsl.so.1
Reading symbols from /lib/tls/libcrypt.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/tls/libcrypt.so.1
Reading symbols from /lib/tls/libpthread.so.0...
(no debugging symbols found)...done.
[Thread debugging using libthread_db enabled]
[New Thread -1210984832 (LWP 11107)]
Loaded symbols for /lib/tls/libpthread.so.0
Reading symbols from /lib/tls/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib/tls/libc.so.6
Reading symbols from /lib/ld-linux.so.2...
(no debugging symbols found)...done.
Loaded symbols for /lib/ld-linux.so.2
Reading symbols from /lib/tls/libnss_compat.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib/tls/libnss_compat.so.2
Reading symbols from /lib/tls/libnss_nis.so.2...
(no debugging symbols found)...done.
Loaded symbols for /lib/tls/libnss_nis.so.2
Reading symbols from /lib/tls/libnss_files.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib/tls/libnss_files.so.2
Reading symbols from /lib/tls/libnss_dns.so.2...
(no debugging symbols found)...done.
Loaded symbols for /lib/tls/libnss_dns.so.2
0xb7e077a1 in pthread_setcanceltype ()
   from /lib/tls/libc.so.6
(gdb) bt
#0  0xb7e077a1 in pthread_setcanceltype () from /lib/tls/libc.so.6
#1  0x00000001 in ?? ()
#2  0xb7e55fcc in ?? () from /lib/tls/libc.so.6
#3  0x00000001 in ?? ()
#4  0xb7df7523 in setlogmask () from /lib/tls/libc.so.6
#5  0xbfffdd74 in ?? ()
#6  0xb7df74a0 in setlogmask () from /lib/tls/libc.so.6
#7  0x00000000 in ?? ()
#8  0x00000001 in ?? ()
#9  0x00000000 in ?? ()
#10 0xbfffe174 in ?? ()
#11 0xbfffdd74 in ?? ()
#12 0x00000007 in ?? ()
#13 0xbfffe58c in ?? ()
#14 0x0806f3ac in error ()
#15 0x0806f150 in error ()
#16 0x08053301 in ?? ()
#17 0x0807ff45 in _IO_stdin_used ()
#18 0xb7e46d5b in in6addr_loopback () from /lib/tls/libc.so.6
#19 0xbfffea6c in ?? ()
#20 0xbfffe63c in ?? ()
#21 0x00000009 in ?? ()
#22 0x00000000 in ?? ()
---Type <return> to continue, or q <return> to quit---
#23 0x00000008 in ?? ()
#24 <signal handler called>
#25 0xb7dfba1c in send () from /lib/tls/libc.so.6
#26 0xb7df6e10 in vsyslog () from /lib/tls/libc.so.6
#27 0xb7df6aaf in syslog () from /lib/tls/libc.so.6
#28 0x0806f3c1 in error ()
#29 0x0806f150 in error ()
#30 0x08054e27 in ?? ()
#31 0x080800d4 in _IO_stdin_used ()
#32 0x00000005 in ?? ()
#33 0xbffff358 in ?? ()
#34 0x08053d5f in ?? ()
#35 0x0808f334 in stdin ()
#36 0x080532e0 in ?? ()
#37 0x00000000 in ?? ()
#38 0x00000000 in ?? ()
#39 0x08092c20 in stdin ()
#40 0x00000000 in ?? ()
#41 0xbffff358 in ?? ()
#42 0x00000000 in ?? ()
#43 0x00000000 in ?? ()
#44 0x00000000 in ?? ()
#45 0x00000000 in ?? ()
---Type <return> to continue, or q <return> to quit---
#46 0x00002b65 in ?? ()
#47 0x08092c20 in stdin ()
#48 0xbffff380 in ?? ()
#49 0xbffff398 in ?? ()
#50 0x0805793a in ?? ()
#51 0x00002b65 in ?? ()
#52 0x00000005 in ?? ()
#53 0x00000005 in ?? ()
#54 0x00000007 in ?? ()
#55 0x080965c0 in ?? ()
#56 0x0809bc62 in ?? ()
#57 0x00000006 in ?? ()
#58 0x00000007 in ?? ()
#59 0x00000004 in ?? ()
#60 0x00000005 in ?? ()
#61 0xbffff3a8 in ?? ()
#62 0x080965c0 in ?? ()
#63 0x08092c20 in stdin ()
#64 0x00000000 in ?? ()
#65 0xbffff3b8 in ?? ()
#66 0x08057dcc in ?? ()
#67 0x08092c20 in stdin ()
#68 0x080965c0 in ?? ()
---Type <return> to continue, or q <return> to quit---
#69 0xbffff3c4 in ?? ()
#70 0x080723e9 in error ()
Previous frame inner to this frame (corrupt stack?)

Dimi



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