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https://issues.apache.org/jira/browse/GUACAMOLE-1203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17245079#comment-17245079
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Mike Jumper edited comment on GUACAMOLE-1203 at 12/7/20, 9:11 AM:
------------------------------------------------------------------
[~jkuri], can you please address my question from earlier:
{quote}
... has your build been modified in some way? There is no "ping" instruction.
The server will simply ignore it, but the client shouldn't be sending this.
{quote}
I'd like to nail down why your logs are showing this. Your build logs also show
a source archive that we did not produce
({{guacamole-server-1.2.0~ui.tar.gz}}). If you are not using the source as we
have released it, this issue will need to be reproduced on an entirely
unmodified build before we can go further. See:
http://guacamole.apache.org/faq/#test-against-latest-version
The Docker images would be a good way of doing this.
{quote}
... it strikes me guacd wants send more data on a already closed TCP-socket.
The network connection today was better than on 30th of October. But still,
Guacamole kicked me out of the RDP-session cause of instable network.
{quote}
The attempt to send the stream closure "ack" is occurring because that's what
the resource cleanup routine for the "AUDIO_INPUT" channel does in the current
implementation. If the connection with the webapp is not closed, this will
result in clean client-side cleanup of the corresponding resource. This will
happen under normal circumstances if the audio input stream is closed by the
RDP server.
If the connection with the webapp _is_ closed, the attempt to send that "ack"
along the closed socket should simply silently fail. The order of resource
cleanup at the end of a connection is such that the memory for the socket
should still be there until the process handling the connection is fully
terminated.
was (Author: mike.jumper):
[~jkuri], can you please address my question from earlier:
{quote}
... has your build been modified in some way? There is no "ping" instruction.
The server will simply ignore it, but the client shouldn't be sending this.
{quote}
I'd like to nail down why your logs are showing this. Your build logs also show
a source archive that was we did not produce
({{guacamole-server-1.2.0~ui.tar.gz}}). If you are not using the source as we
have released it, this issue will need to be reproduced on an entirely
unmodified build before we can go further. See:
http://guacamole.apache.org/faq/#test-against-latest-version
The Docker images would be a good way of doing this.
{quote}
... it strikes me guacd wants send more data on a already closed TCP-socket.
The network connection today was better than on 30th of October. But still,
Guacamole kicked me out of the RDP-session cause of instable network.
{quote}
The attempt to send the stream closure "ack" is occurring because that's what
the resource cleanup routine for the "AUDIO_INPUT" channel does in the current
implementation. If the connection with the webapp is not closed, this will
result in clean client-side cleanup of the corresponding resource. This will
happen under normal circumstances if the audio input stream is closed by the
RDP server.
If the connection with the webapp _is_ closed, the attempt to send that "ack"
along the closed socket should simply silently fail. The order of resource
cleanup at the end of a connection is such that the memory for the socket
should still be there until the process handling the connection is fully
terminated.
> guacd, Release 1.2.0 segfaults in connection with RDP-Sessions
> --------------------------------------------------------------
>
> Key: GUACAMOLE-1203
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-1203
> Project: Guacamole
> Issue Type: Bug
> Components: guacamole, guacd
> Affects Versions: 1.2.0
> Reporter: Juergen Kuri
> Priority: Major
> Labels: segfault
> Attachments: core.guacd.11.7288.aguacate-srv-us2.server.lan.xz,
> guacd-reproducer.log.xz, guacd_logs.tar.xz
>
>
> h3. Setup
> ||Component||Release||
> |guacamole server {{guacd}}|1.2.0|
> |guacamole client|1.2.0|
> |OS of guacamole server|CentOS 7|
> |OS of guacamole client|CentOS 7|
> |RDP-server|Windows 10|
> h3. Situation
> * I haven't seen it with guacd 1.1.0
> * guacd was resently updated to release 1.2.0 (self-built)
> * It is not reproducible with every session
> * I have no core dump yet (system is not prepared for it)
> * segfaults so far since update to release 1.2.0:
> {color:#000000}Oct 29 17:11:49 aguacate-srv-us1 kernel: guacd[23448]:
> {color}{color:#ff5454}segfault{color}{color:#000000} at 7f7fac00a090 ip
> 00007f7fac00a090 sp 00007f7fa0955a38 error 15 {color}
> Oct 29 17:39:56 aguacate-srv-us1 kernel: guacd[23515]:
> {color:#ff5454}segfault{color}{color:#000000} at 7f7fac00a110 ip
> 00007f7fac00a110 sp 00007f7fa0955a38 error 15 {color}
> Oct 29 18:36:06 aguacate-srv-us1 kernel: guacd[23598]:
> {color:#ff5454}segfault{color}{color:#000000} at 7f7fac00a110 ip
> 00007f7fac00a110 sp 00007f7fa0955a38 error 15 {color}
> Oct 29 18:40:07 aguacate-srv-us1 kernel: guacd[23612]:
> {color:#ff5454}segfault{color}{color:#000000} at 7f7fb4001670 ip
> 00007f7fb4001670 sp 00007f7fa0955a38 error 15 {color}
> Oct 29 18:46:19 aguacate-srv-us1 kernel: guacd[23633]:
> {color:#ff5454}segfault{color}{color:#000000} at 7f7fac00a090 ip
> 00007f7fac00a090 sp 00007f7fa0955a38 error 15 {color}
> Oct 29 19:04:42 aguacate-srv-us1 kernel: guacd[23716]:
> {color:#ff5454}segfault{color}{color:#000000} at 7f7fac000088 ip
> 00007f7fac000088 sp 00007f7fa0955a38 error 15 {color}
> Oct 30 11:07:08 aguacate-srv-us1 kernel: guacd[24871]:
> {color:#ff5454}segfault{color}{color:#000000} at 7f7fb4001670 ip
> 00007f7fb4001670 sp 00007f7f9ff22a38 error 15 {color}
> Oct 30 11:22:55 aguacate-srv-us1 kernel: guacd[24911]:
> {color:#ff5454}segfault{color}{color:#000000} at 7f7fb4001670 ip
> 00007f7fb4001670 sp 00007f7f9ff22a38 error 15 {color}
> Oct 30 12:29:19 aguacate-srv-us1 kernel: guacd[25017]:
> {color:#ff5454}segfault{color}{color:#000000} at 7f7fb4001670 ip
> 00007f7fb4001670 sp 00007f7fa0955a38 error 15 {color}
> Oct 30 12:32:07 aguacate-srv-us1 kernel: guacd[25052]:
> {color:#ff5454}segfault{color}{color:#000000} at 7f7fb4001670 ip
> 00007f7fb4001670 sp 00007f7fa0955a38 error 15 {color}
> Oct 30 12:35:19 aguacate-srv-us1 kernel: guacd[25080]:
> {color:#ff5454}segfault{color}{color:#000000} at 7f7fb4001670 ip
> 00007f7fb4001670 sp 00007f7fa0955a38 error 15{color}
> +Full session log+
> {noformat}
> Oct 30 12:34:46 aguacate-srv-us1 guacd[21561]: Creating new client for
> protocol "rdp"
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[21561]: INFO:#011Creating new
> client for protocol "rdp"
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[21561]: INFO:#011Connection ID
> is "$a17fd54d-4132-497b-aa2a-35afb3fa2c4b"
> Oct 30 12:34:46 aguacate-srv-us1 guacd[21561]: Connection ID is
> "$a17fd54d-4132-497b-aa2a-35afb3fa2c4b"
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Processing
> instruction: size
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Processing
> instruction: audio
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Processing
> instruction: video
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Processing
> instruction: image
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Processing
> instruction: timezone
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "console-audio" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: INFO:#011Security mode:
> Negotiate (ANY)
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "port" omitted. Using default value of 3389.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011User
> resolution is 1853x974 at 96 DPI
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "dpi" omitted. Using default value of 96.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Using
> resolution of 1852x974 at 96 DPI
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "read-only" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "client-name" omitted. Using default value of "Guacamole RDP".
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "enable-wallpaper" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "enable-theming" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "enable-font-smoothing" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "enable-full-window-drag" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "enable-desktop-composition" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "enable-menu-animations" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "disable-bitmap-caching" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "disable-offscreen-caching" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "disable-glyph-caching" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "color-depth" omitted. Using default value of 16.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "disable-audio" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "enable-printing" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "printer-name" omitted. Using default value of "Guacamole Printer".
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "enable-drive" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "drive-name" omitted. Using default value of "Guacamole Filesystem".
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "drive-path" omitted. Using default value of "".
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "create-drive-path" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "disable-download" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "disable-upload" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "timezone" omitted. Using default value of "Europe/Berlin".
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "enable-sftp" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "sftp-hostname" omitted. Using default value of "DWCH-6QB9R53".
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "sftp-port" omitted. Using default value of "22".
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "sftp-username" omitted. Using default value of "".
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "sftp-password" omitted. Using default value of "".
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "sftp-passphrase" omitted. Using default value of "".
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "sftp-root-directory" omitted. Using default value of "/".
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "sftp-server-alive-interval" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "sftp-disable-download" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "sftp-disable-upload" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "recording-name" omitted. Using default value of "recording".
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "recording-exclude-output" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "recording-exclude-mouse" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "recording-include-keys" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "create-recording-path" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: INFO:#011Resize method:
> none
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "gateway-port" omitted. Using default value of 443.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "disable-copy" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "disable-paste" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Parameter
> "wol-send-packet" omitted. Using default value of 0.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: INFO:#011User
> "@51caf17d-aef4-41b6-a151-c2a21ba73088" joined connection
> "$a17fd54d-4132-497b-aa2a-35afb3fa2c4b" (1 users now present)
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Client is
> using protocol version "VERSION_1_1_0"
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: INFO:#011Loading keymap
> "base"
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: INFO:#011Loading keymap
> "en-us-qwerty"
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Support for
> CLIPRDR (clipboard redirection) registered. Awaiting channel connection.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Support for
> static channel "rdpdr" loaded.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Support for
> static channel "rdpsnd" loaded.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Local
> framebuffer format PIXEL_FORMAT_BGRX32
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Remote
> framebuffer format PIXEL_FORMAT_RGB16
> Oct 30 12:34:46 aguacate-srv-us1 guacd[25069]: Security mode: Negotiate (ANY)
> Oct 30 12:34:46 aguacate-srv-us1 guacd[25069]: Resize method: none
> Oct 30 12:34:46 aguacate-srv-us1 guacd[25069]: User
> "@51caf17d-aef4-41b6-a151-c2a21ba73088" joined connection
> "$a17fd54d-4132-497b-aa2a-35afb3fa2c4b" (1 users now present)
> Oct 30 12:34:46 aguacate-srv-us1 guacd[25069]: Loading keymap "base"
> Oct 30 12:34:46 aguacate-srv-us1 guacd[25069]: Loading keymap "en-us-qwerty"
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011CLIPRDR
> (clipboard redirection) channel connected.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011SVC "rdpdr"
> connected.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011SVC "rdpsnd"
> connected.
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Loading
> Dynamic Virtual Channel guacai
> Oct 30 12:34:46 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011AUDIO_INPUT
> plugin loaded.
> Oct 30 12:34:47 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Clipboard
> data received. Reporting availability of clipboard data to RDP server.
> Oct 30 12:34:47 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011User is
> requesting to provide audio input as 2-channel, 44100 Hz PCM audio at 2
> bytes/sample.
> Oct 30 12:34:47 aguacate-srv-us1 guacd[25069]: Connected to RDPDR 1.13 as
> client 0x0003
> Oct 30 12:34:47 aguacate-srv-us1 guacd: guacd[25069]: INFO:#011Connected to
> RDPDR 1.13 as client 0x0003
> Oct 30 12:34:47 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Ignoring
> server capability set type=0x0001, length=44
> Oct 30 12:34:47 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Ignoring
> server capability set type=0x0002, length=8
> Oct 30 12:34:47 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Ignoring
> server capability set type=0x0003, length=8
> Oct 30 12:34:47 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Ignoring
> server capability set type=0x0004, length=8
> Oct 30 12:34:47 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Ignoring
> server capability set type=0x0005, length=8
> Oct 30 12:34:47 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Sending
> capabilities...
> Oct 30 12:34:47 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Capabilities
> sent.
> Oct 30 12:34:47 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Client ID
> confirmed
> Oct 30 12:35:05 aguacate-srv-us1 guacd[25069]: Connected to RDPDR 1.13 as
> client 0x0002
> Oct 30 12:35:05 aguacate-srv-us1 guacd: guacd[25069]: INFO:#011Connected to
> RDPDR 1.13 as client 0x0002
> Oct 30 12:35:05 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Ignoring
> server capability set type=0x0001, length=44
> Oct 30 12:35:05 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Ignoring
> server capability set type=0x0002, length=8
> Oct 30 12:35:05 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Ignoring
> server capability set type=0x0003, length=8
> Oct 30 12:35:05 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Ignoring
> server capability set type=0x0004, length=8
> Oct 30 12:35:05 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Ignoring
> server capability set type=0x0005, length=8
> Oct 30 12:35:05 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Sending
> capabilities...
> Oct 30 12:35:05 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Capabilities
> sent.
> Oct 30 12:35:05 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Client ID
> confirmed
> Oct 30 12:35:05 aguacate-srv-us1 guacd[25069]: RDPDR user logged on
> Oct 30 12:35:05 aguacate-srv-us1 guacd: guacd[25069]: INFO:#011RDPDR user
> logged on
> Oct 30 12:35:05 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011All supported
> devices sent.
> Oct 30 12:35:05 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011New
> AUDIO_INPUT channel connection
> Oct 30 12:35:06 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011RDP server is
> accepting audio input as 2-channel, 44100 Hz PCM audio at 2 bytes/sample.
> Oct 30 12:35:06 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011AUDIO_INPUT
> channel connection closed
> Oct 30 12:35:06 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011New
> AUDIO_INPUT channel connection
> Oct 30 12:35:06 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011RDP server is
> accepting audio input as 2-channel, 44100 Hz PCM audio at 2 bytes/sample.
> Oct 30 12:35:06 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011User is
> requesting to provide audio input as 2-channel, 44100 Hz PCM audio at 2
> bytes/sample.
> Oct 30 12:35:16 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Handler not
> found for "ping"
> Oct 30 12:35:18 aguacate-srv-us1 guacd[25069]: User connection aborted
> Oct 30 12:35:18 aguacate-srv-us1 guacd: guacd[25069]: WARNING:#011User
> connection aborted
> Oct 30 12:35:18 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Failing
> instruction handler in user was "sync"
> Oct 30 12:35:18 aguacate-srv-us1 guacd: guacd[25069]: INFO:#011User
> "@51caf17d-aef4-41b6-a151-c2a21ba73088" disconnected (0 users remain)
> Oct 30 12:35:18 aguacate-srv-us1 guacd: guacd[25069]: INFO:#011Last user of
> connection "$a17fd54d-4132-497b-aa2a-35afb3fa2c4b" disconnected
> Oct 30 12:35:18 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011Requesting
> termination of client...
> Oct 30 12:35:18 aguacate-srv-us1 guacd[25069]: User
> "@51caf17d-aef4-41b6-a151-c2a21ba73088" disconnected (0 users remain)
> Oct 30 12:35:18 aguacate-srv-us1 guacd[25069]: Last user of connection
> "$a17fd54d-4132-497b-aa2a-35afb3fa2c4b" disconnected
> Oct 30 12:35:19 aguacate-srv-us1 guacd: guacd[25069]: DEBUG:#011AUDIO_INPUT
> channel connection closed
> Oct 30 12:35:19 aguacate-srv-us1 kernel: guacd[25080]: segfault at
> 7f7fb4001670 ip 00007f7fb4001670 sp 00007f7fa0955a38 error 15
> Oct 30 12:35:19 aguacate-srv-us1 guacd[21561]: Connection
> "$a17fd54d-4132-497b-aa2a-35afb3fa2c4b" removed.
> Oct 30 12:35:19 aguacate-srv-us1 guacd: guacd[21561]: INFO:#011Connection
> "$a17fd54d-4132-497b-aa2a-35afb3fa2c4b" removed.
> {noformat}
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