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  1. Guacamole
  2. GUACAMOLE-601

VNC segfault when VNC server restarted

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Minor
    • Resolution: Duplicate
    • Affects Version/s: 0.9.14
    • Fix Version/s: None
    • Component/s: VNC
    • Labels:
      None

      Description

      While viewing, try to restart the VNC server, unable to reconnect back to the VNC then, continuously getting segfault until restart guacamole server in order to solve it

      Jul 27 21:05:08 TDF-Jasper guacd[1354]: Creating new client for protocol "vnc"
      Jul 27 21:05:08 TDF-Jasper guacd[1354]: Connection ID is "$3c02e097-a5a4-4a78-9d75-72531046877d"
      Jul 27 21:05:09 TDF-Jasper guacd[6539]: Cursor rendering: local
      Jul 27 21:05:09 TDF-Jasper guacd[6539]: User "@ecba697e-1195-41d4-9b99-71525c58952e" joined connection "$3c02e097-a5a4-4a78-9d75-72531046877d" (1 users now present)
      Jul 27 21:05:14 TDF-Jasper guacd[6539]: Connected to VNC repeater, using protocol version 0.0
      Jul 27 21:05:15 TDF-Jasper guacd[6539]: VNC server supports protocol version 3.8 (viewer 3.8)
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: We have 1 security types to read
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: 0) Received security type 1
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: Selecting security type 1 (0/1 in the list)
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: Selected Security Scheme 1
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: No authentication needed
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: VNC authentication succeeded
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: Desktop name "Remote control"
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: Connected to VNC server, using protocol version 3.8
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: VNC server default format:
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: 32 bits per pixel.
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: Least significant byte first in each pixel.
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: TRUE colour: max red 255 green 255 blue 255, shift red 0 green 8 blue 16
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: client2server supported messages (bit flags)
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: 00: 00ff 0081 0000 0000 - 0000 0000 0000 0000
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: 08: 0000 0000 0000 0000 - 0000 0000 0000 0000
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: 10: 0000 0000 0000 0000 - 0000 0000 0000 0000
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: 18: 0000 0000 0000 0000 - 0000 0000 0000 0000
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: server2client supported messages (bit flags)
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: 00: 001f 0080 0000 0000 - 0000 0000 0000 0000
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: 08: 0000 0000 0000 0000 - 0000 0000 0000 0000
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: 10: 0000 0000 0000 0000 - 0000 0000 0000 0000
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: 18: 0000 0000 0000 0000 - 0000 0000 0000 0000
      Jul 27 21:05:16 TDF-Jasper guacd[6539]: Connected to Server "unknown (LibVNCServer 0.9.11)"
      Jul 27 21:05:38 TDF-Jasper guacd[1354]: Creating new client for protocol "vnc"
      Jul 27 21:05:38 TDF-Jasper guacd[1354]: Connection ID is "$f7648af9-9126-4e69-a6ef-a8b9ac3b7fc3"
      Jul 27 21:05:38 TDF-Jasper guacd[6573]: Cursor rendering: local
      Jul 27 21:05:38 TDF-Jasper guacd[6573]: User "@1446482b-becb-495a-9763-a151f6d6079f" joined connection "$f7648af9-9126-4e69-a6ef-a8b9ac3b7fc3" (1 users now present)
      Jul 27 21:05:38 TDF-Jasper guacd[6573]: Connected to VNC repeater, using protocol version 0.0
      Jul 27 21:05:39 TDF-Jasper guacd[6573]: VNC server closed connection
      Jul 27 21:05:39 TDF-Jasper guacd[6573]: Unable to connect to VNC server.
      Jul 27 21:05:39 TDF-Jasper kernel: [18008.137457] show_signal_msg: 42 callbacks suppressed
      Jul 27 21:05:39 TDF-Jasper kernel: [18008.137462] guacd[6576]: segfault at 10 ip 00007f3cdcc64f32 sp 00007f3cdde71d10 error 4 in libguac-client-vnc.so.0.0.0[7f3cdcc5c000+14000]
      Jul 27 21:05:40 TDF-Jasper guacd[6539]: User is not responding.
      Jul 27 21:05:40 TDF-Jasper guacd[6539]: User "@ecba697e-1195-41d4-9b99-71525c58952e" disconnected (0 users remain)
      Jul 27 21:05:40 TDF-Jasper guacd[6539]: Last user of connection "$3c02e097-a5a4-4a78-9d75-72531046877d" disconnected
      Jul 27 21:05:40 TDF-Jasper guacd[1354]: Connection "$f7648af9-9126-4e69-a6ef-a8b9ac3b7fc3" removed.
      Jul 27 21:07:19 TDF-Jasper guacd[1354]: Creating new client for protocol "vnc"
      Jul 27 21:07:19 TDF-Jasper guacd[1354]: Connection ID is "$ff22eac4-80d1-4225-a87f-73537e7b569d"
      Jul 27 21:07:19 TDF-Jasper guacd[6633]: Cursor rendering: local
      Jul 27 21:07:19 TDF-Jasper guacd[6633]: User "@aa706cb4-399c-4428-bc31-2fe8ff369e3b" joined connection "$ff22eac4-80d1-4225-a87f-73537e7b569d" (1 users now present)
      Jul 27 21:07:19 TDF-Jasper guacd[6633]: Connected to VNC repeater, using protocol version 0.0
      Jul 27 21:07:20 TDF-Jasper guacd[6633]: VNC server closed connection
      Jul 27 21:07:20 TDF-Jasper guacd[6633]: Unable to connect to VNC server.
      Jul 27 21:07:20 TDF-Jasper kernel: [18108.872369] guacd[6636]: segfault at 10 ip 00007f3cddc66f32 sp 00007f3cdee73d10 error 4 in libguac-client-vnc.so.0.0.0[7f3cddc5e000+14000]
      Jul 27 21:07:20 TDF-Jasper guacd[1354]: Connection "$ff22eac4-80d1-4225-a87f-73537e7b569d" removed.
      Jul 27 21:07:32 TDF-Jasper guacd[1354]: Creating new client for protocol "vnc"
      Jul 27 21:07:32 TDF-Jasper guacd[1354]: Connection ID is "$f275fcc9-ce5f-4f96-8556-cca0c215ae4a"
      Jul 27 21:07:32 TDF-Jasper guacd[6653]: Cursor rendering: local
      Jul 27 21:07:32 TDF-Jasper guacd[6653]: User "@3cbe1fc5-b04e-48b0-bdd2-29bd26c38d08" joined connection "$f275fcc9-ce5f-4f96-8556-cca0c215ae4a" (1 users now present)
      Jul 27 21:07:37 TDF-Jasper guacd[6653]: Connected to VNC repeater, using protocol version 0.0
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: VNC server supports protocol version 3.8 (viewer 3.8)
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: We have 1 security types to read
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: 0) Received security type 1
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: Selecting security type 1 (0/1 in the list)
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: Selected Security Scheme 1
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: No authentication needed
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: VNC authentication succeeded
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: Desktop name "Remote control"
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: Connected to VNC server, using protocol version 3.8
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: VNC server default format:
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: 32 bits per pixel.
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: Least significant byte first in each pixel.
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: TRUE colour: max red 255 green 255 blue 255, shift red 0 green 8 blue 16
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: client2server supported messages (bit flags)
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: 00: 00ff 0081 0000 0000 - 0000 0000 0000 0000
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: 08: 0000 0000 0000 0000 - 0000 0000 0000 0000
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: 10: 0000 0000 0000 0000 - 0000 0000 0000 0000
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: 18: 0000 0000 0000 0000 - 0000 0000 0000 0000
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: server2client supported messages (bit flags)
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: 00: 001f 0080 0000 0000 - 0000 0000 0000 0000
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: 08: 0000 0000 0000 0000 - 0000 0000 0000 0000
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: 10: 0000 0000 0000 0000 - 0000 0000 0000 0000
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: 18: 0000 0000 0000 0000 - 0000 0000 0000 0000
      Jul 27 21:07:38 TDF-Jasper guacd[6653]: Connected to Server "unknown (LibVNCServer 0.9.11)"
      Jul 27 21:07:43 TDF-Jasper guacd[6653]: User "@3cbe1fc5-b04e-48b0-bdd2-29bd26c38d08" disconnected (0 users remain)
      Jul 27 21:07:43 TDF-Jasper guacd[6653]: Last user of connection "$f275fcc9-ce5f-4f96-8556-cca0c215ae4a" disconnected
      Jul 27 21:07:43 TDF-Jasper guacd[6653]: Internal VNC client disconnected
      Jul 27 21:07:47 TDF-Jasper guacd[1354]: Connection "$f275fcc9-ce5f-4f96-8556-cca0c215ae4a" removed.
      Jul 27 21:07:52 TDF-Jasper guacd[1354]: Creating new client for protocol "vnc"
      Jul 27 21:07:52 TDF-Jasper guacd[1354]: Connection ID is "$2b7cd2f7-aee1-4039-92ab-0237db440fda"
      Jul 27 21:07:52 TDF-Jasper guacd[6682]: Cursor rendering: local
      Jul 27 21:07:52 TDF-Jasper guacd[6682]: User "@28e2cd8f-e393-4e05-b3dc-28582c172ea4" joined connection "$2b7cd2f7-aee1-4039-92ab-0237db440fda" (1 users now present)
      Jul 27 21:07:53 TDF-Jasper guacd[6682]: Connected to VNC repeater, using protocol version 0.0
      Jul 27 21:07:54 TDF-Jasper guacd[6682]: VNC server closed connection
      Jul 27 21:07:54 TDF-Jasper guacd[6682]: Unable to connect to VNC server.
      Jul 27 21:07:54 TDF-Jasper kernel: [18143.056832] guacd[6685]: segfault at 10 ip 00007f3cddc66f32 sp 00007f3cdee73d10 error 4 in libguac-client-vnc.so.0.0.0[7f3cddc5e000+14000]
      Jul 27 21:07:54 TDF-Jasper guacd[1354]: Connection "$2b7cd2f7-aee1-4039-92ab-0237db440fda" removed.
      Jul 27 21:08:45 TDF-Jasper guacd[1354]: Creating new client for protocol "vnc"
      Jul 27 21:08:45 TDF-Jasper guacd[1354]: Connection ID is "$df6bd945-ac2c-4fbf-9821-c75844953db5"
      Jul 27 21:08:45 TDF-Jasper guacd[6718]: Cursor rendering: local
      Jul 27 21:08:45 TDF-Jasper guacd[6718]: User "@d9896eb7-7d65-4b59-888a-4a326827c772" joined connection "$df6bd945-ac2c-4fbf-9821-c75844953db5" (1 users now present)
      Jul 27 21:08:45 TDF-Jasper guacd[6718]: Connected to VNC repeater, using protocol version 0.0
      Jul 27 21:08:46 TDF-Jasper guacd[6718]: VNC server closed connection
      Jul 27 21:08:46 TDF-Jasper guacd[6718]: Unable to connect to VNC server.
      Jul 27 21:08:46 TDF-Jasper kernel: [18194.759323] guacd[6721]: segfault at 10 ip 00007f3cddc66f32 sp 00007f3cdee73d10 error 4 in libguac-client-vnc.so.0.0.0[7f3cddc5e000+14000]
      Jul 27 21:08:46 TDF-Jasper guacd[1354]: Connection "$df6bd945-ac2c-4fbf-9821-c75844953db5" removed.
      Jul 27 21:11:29 TDF-Jasper guacd[1354]: Creating new client for protocol "vnc"
      Jul 27 21:11:29 TDF-Jasper guacd[1354]: Connection ID is "$01fb8f73-6e01-4f25-9bcf-127d3f53f0a7"
      Jul 27 21:11:29 TDF-Jasper guacd[6798]: Cursor rendering: local
      Jul 27 21:11:29 TDF-Jasper guacd[6798]: User "@ed9c0365-f136-4a8a-8de3-6987c315805d" joined connection "$01fb8f73-6e01-4f25-9bcf-127d3f53f0a7" (1 users now present)
      Jul 27 21:11:29 TDF-Jasper guacd[6798]: Connected to VNC repeater, using protocol version 0.0
      Jul 27 21:11:30 TDF-Jasper guacd[6798]: VNC server closed connection
      Jul 27 21:11:30 TDF-Jasper guacd[6798]: Unable to connect to VNC server.
      Jul 27 21:11:30 TDF-Jasper kernel: [18359.157596] guacd[6801]: segfault at 10 ip 00007f3cddc66f32 sp 00007f3cdee73d10 error 4 in libguac-client-vnc.so.0.0.0[7f3cddc5e000+14000]
      Jul 27 21:11:30 TDF-Jasper guacd[1354]: Connection "$01fb8f73-6e01-4f25-9bcf-127d3f53f0a7" removed.
      

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        1. syslog.3
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          KokHooi Chew

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              • Assignee:
                Unassigned
                Reporter:
                khchew80 KokHooi Chew
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                • Created:
                  Updated:
                  Resolved: