Bug 1270273

Summary: [abrt] x2goclient: ssh_poll_ctx_remove(): x2goclient killed by SIGSEGV
Product: [Fedora] Fedora Reporter: Oliver Sampson <oliver>
Component: x2goclientAssignee: Orion Poplawski <orion>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 22CC: davestux, hoihoip, oliver, orion, stuart, thomas.woeckinger, wiesen-edx
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
URL: https://retrace.fedoraproject.org/faf/reports/bthash/d1d2a95ebbe37dca645bef06dead08cc9548ace8
Whiteboard: abrt_hash:211f1db5d781a6371b0efac2d7b6dbf40c91f83c;
Fixed In Version: x2goclient-4.0.5.1-1.fc22 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2016-04-05 14:18:10 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
File: backtrace
none
File: cgroup
none
File: core_backtrace
none
File: dso_list
none
File: environ
none
File: limits
none
File: maps
none
File: mountinfo
none
File: namespaces
none
File: open_fds
none
File: proc_pid_status
none
File: var_log_messages none

Description Oliver Sampson 2015-10-09 13:11:49 UTC 
Description of problem:
After opening a session using the auto-login for the first time, and then closing the session, the error appeared.

Version-Release number of selected component:
x2goclient-4.0.5.0-2.fc22

Additional info:
reporter:       libreport-2.6.2
backtrace_rating: 4
cmdline:        /bin/x2goclient -session 1032924d28f2ac000144136623600000046370014_1444142739_821408
crash_function: ssh_poll_ctx_remove
executable:     /usr/bin/x2goclient
global_pid:     1811
kernel:         4.1.8-200.fc22.x86_64
runlevel:       N 5
type:           CCpp
uid:            1000

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 ssh_poll_ctx_remove at /usr/src/debug/libssh-0.7.1/src/poll.c:564
 #1 ssh_poll_free at /usr/src/debug/libssh-0.7.1/src/poll.c:311
 #2 ssh_socket_close at /usr/src/debug/libssh-0.7.1/src/socket.c:447
 #3 ssh_client_connection_callback at /usr/src/debug/libssh-0.7.1/src/client.c:436
 #4 ssh_socket_nonblocking_flush at /usr/src/debug/libssh-0.7.1/src/socket.c:641
 #5 ssh_socket_write at /usr/src/debug/libssh-0.7.1/src/socket.c:622
 #6 ssh_packet_write at /usr/src/debug/libssh-0.7.1/src/packet.c:509
 #7 packet_send2 at /usr/src/debug/libssh-0.7.1/src/packet.c:579
 #8 packet_send at /usr/src/debug/libssh-0.7.1/src/packet.c:604
 #9 channel_open at /usr/src/debug/libssh-0.7.1/src/channels.c:296
Comment 1 Oliver Sampson 2015-10-09 13:11:53 UTC 
Created attachment 1081334 [details]
File: backtrace
Comment 2 Oliver Sampson 2015-10-09 13:11:54 UTC 
Created attachment 1081335 [details]
File: cgroup
Comment 3 Oliver Sampson 2015-10-09 13:11:56 UTC 
Created attachment 1081336 [details]
File: core_backtrace
Comment 4 Oliver Sampson 2015-10-09 13:11:57 UTC 
Created attachment 1081337 [details]
File: dso_list
Comment 5 Oliver Sampson 2015-10-09 13:11:58 UTC 
Created attachment 1081338 [details]
File: environ
Comment 6 Oliver Sampson 2015-10-09 13:11:59 UTC 
Created attachment 1081339 [details]
File: limits
Comment 7 Oliver Sampson 2015-10-09 13:12:01 UTC 
Created attachment 1081340 [details]
File: maps
Comment 8 Oliver Sampson 2015-10-09 13:12:03 UTC 
Created attachment 1081341 [details]
File: mountinfo
Comment 9 Oliver Sampson 2015-10-09 13:12:04 UTC 
Created attachment 1081342 [details]
File: namespaces
Comment 10 Oliver Sampson 2015-10-09 13:12:05 UTC 
Created attachment 1081343 [details]
File: open_fds
Comment 11 Oliver Sampson 2015-10-09 13:12:06 UTC 
Created attachment 1081344 [details]
File: proc_pid_status
Comment 12 Oliver Sampson 2015-10-09 13:12:07 UTC 
Created attachment 1081345 [details]
File: var_log_messages
Comment 13 Orion Poplawski 2015-10-09 15:11:37 UTC 
Can you try libssh 0.7.2 from updates testing?
Comment 14 Orion Poplawski 2015-12-28 19:22:29 UTC 
*** Bug 1294212 has been marked as a duplicate of this bug. ***
Comment 15 Stuart D Gathman 2015-12-31 01:57:23 UTC 
Another user experienced a similar problem:

Told remote system to reboot.  Suspended x2goclient.  x2goclient went into a CPU loop.  Closing it caused the fault.

reporter:       libreport-2.6.3
backtrace_rating: 4
cmdline:        x2goclient
crash_function: ssh_poll_ctx_remove
executable:     /usr/bin/x2goclient
global_pid:     31030
kernel:         4.2.7-200.fc22.i686
package:        x2goclient-4.0.5.0-3.fc22
reason:         x2goclient killed by SIGSEGV
runlevel:       N 5
type:           CCpp
uid:            1000
Comment 16 Stuart D Gathman 2015-12-31 01:59:00 UTC 
The above was with libssh-0.7.2-2.fc22.i686
Comment 17 davestux 2016-01-19 22:42:57 UTC 
Another user experienced a similar problem:

Since updating the system few days ago x2goclient dies immediately after connecting.

reporter:       libreport-2.6.3
backtrace_rating: 4
cmdline:        x2goclient
crash_function: ssh_poll_ctx_remove
executable:     /usr/bin/x2goclient
global_pid:     27594
kernel:         4.3.3-300.fc23.x86_64
package:        x2goclient-4.0.5.0-3.fc23
reason:         x2goclient killed by SIGSEGV
runlevel:       N 5
type:           CCpp
uid:            1000
Comment 18 Orion Poplawski 2016-03-24 22:35:25 UTC 
Can you still reproduce this with https://bodhi.fedoraproject.org/updates/FEDORA-2016-06de180216 ?
Comment 19 Fedora Update System 2016-03-26 14:50:40 UTC 
x2goclient-4.0.5.1-1.fc22 has been submitted as an update to Fedora 22. https://bodhi.fedoraproject.org/updates/FEDORA-2016-06de180216
Comment 20 Fedora Update System 2016-04-05 14:17:59 UTC 
x2goclient-4.0.5.1-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.
Comment 21 Oliver Sampson 2016-07-21 10:25:07 UTC 
Similar problem has been detected:

I executed pkill -u in the remote session, and x2go-client crashed.

reporter:       libreport-2.6.4
backtrace_rating: 4
cmdline:        /usr/bin/x2goclient -session 1032924d28f2ac000146252694800000126200095_1469002457_865317
crash_function: ssh_poll_ctx_remove
executable:     /usr/bin/x2goclient
global_pid:     2151
kernel:         4.6.4-201.fc23.x86_64
package:        x2goclient-4.0.5.1-1.fc23
reason:         x2goclient killed by SIGSEGV
runlevel:       N 5
type:           CCpp
uid:            1000