20241225-1

Debian への RDP ができなくなったときの対応

概要

何もしてないのに RDP 接続後 Debian がハングしたのでその対応

仕様環境

OS：Debian 12
RDP サーバ： xrdp
RDP クライアント: Microsoft リモートデスクトップ(Windows Store で入手版)

発生事象

RDP 接続直後サーバがハングアップし、接続が切れる
再起動後サイド RDP 接続しても同様の事象が起きた
RDP でなく、SSH など RDP 以外の接続では正常に動作

ログ(一部加工)

Dec 25 08:30:07 wifitest kernel: [   26.392940] VDF_enable
Dec 25 08:30:08 wifitest kernel: [   27.168509] UpdateHalRAMask8812A => mac_id:0, networkType:0x44, mask:0x003ffff0
Dec 25 08:30:08 wifitest kernel: [   27.168509]          ==> rssi_level:0, rate_bitmap:0x003ff010
Dec 25 08:30:08 wifitest kernel: [   27.292412] RTL871X: set pairwise key to hw: alg:4(WEP40-1 WEP104-5 TKIP-2 AES-4) camid:4
Dec 25 08:30:08 wifitest kernel: [   27.292418] RTL871X: set group key to hw: alg:4(WEP40-1 WEP104-5 TKIP-2 AES-4) keyid:2
Dec 25 08:31:13 wifitest pipewire[1003]: could not set nice-level to -11: Permission denied
Dec 25 08:31:13 wifitest pipewire[1003]: could not make thread realtime: Permission denied
Dec 25 08:31:13 wifitest pipewire-media-session[1010]: could not set nice-level to -11: Permission denied
Dec 25 08:31:13 wifitest pipewire-media-session[1010]: could not make thread realtime: Permission denied
Dec 25 08:31:14 wifitest kernel: [   93.342998] show_signal: 29 callbacks suppressed
Dec 25 08:31:14 wifitest kernel: [   93.343000] traps: light-locker[1251] trap int3 ip:7fed59486ca7 sp:7fffd00cc0d0 error:0 in libglib-2.0.so.0.6600.8[7fed5944a000+89000]
Dec 25 08:31:25 wifitest kernel: [  104.196682] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
Dec 25 08:31:25 wifitest kernel: [  104.196685] Bluetooth: BNEP filters: protocol multicast
Dec 25 08:31:25 wifitest kernel: [  104.196691] Bluetooth: BNEP socket layer initialized
Dec 25 08:31:25 wifitest gnome-keyring-d[1386]: couldn't access control socket: /run/user/1000/keyring/control: ã<81><9d>ã<81>®ã<82><88>ã<81><86>ã<81>ªã<83><95>ã<82>¡<87>ã<82>£ã<83>¬ã<82>¯ã<83><88>ã<83>ªã<81>
Dec 25 08:31:35 wifitest gnome-keyring-d[1386]: asked to register item /org/freedesktop/secrets/collection/login/2, but it's already registered
Dec 25 08:31:55 wifitest xdg-desktop-por[1371]: Failed to get application states: GDBus.Error:org.freedesktop.portal.Error.Failed: Could not get window list
Dec 25 08:40:56 wifitest kernel: [  675.613244] RTL871X: indicate disassoc
Dec 25 08:41:05 wifitest kernel: [  683.794638] RTL871X: set ssid [                  ] fw_state=0x00000008
Dec 25 08:41:05 wifitest kernel: [  683.794652] RTL871X: set bssid:00:00:00:00:00:00
Dec 25 08:41:05 wifitest kernel: [  684.317267] VDF_enable
Dec 25 08:41:06 wifitest kernel: [  685.104736] VDF_enable
Dec 25 08:41:07 wifitest kernel: [  685.888623] VDF_enable
Dec 25 08:41:08 wifitest kernel: [  686.791664] RTL871X: start auth
Dec 25 08:41:08 wifitest kernel: [  686.795410] RTL871X: auth success, start assoc
Dec 25 08:41:08 wifitest kernel: [  686.798915] RTL871X: assoc success
Dec 25 08:41:08 wifitest kernel: [  686.802170] RTL871X: sta recv deauth reason code(2) sta:00:00:00:00:00:00
Dec 25 08:41:08 wifitest kernel: [  686.834350] UpdateHalRAMask8812A => mac_id:0, networkType:0x44, mask:0x003ffff0
Dec 25 08:41:08 wifitest kernel: [  686.834350]          ==> rssi_level:0, rate_bitmap:0x003ff010
Dec 25 08:41:08 wifitest kernel: [  687.160595] RTL871X: indicate disassoc
Dec 25 08:41:12 wifitest kernel: [  690.816834] RTL871X: nolinked power save enter
Dec 25 08:41:16 wifitest kernel: [  694.758522] RTL871X: nolinked power save leave
Dec 25 08:41:24 wifitest kernel: [  702.945734] RTL871X: nolinked power save enter
Dec 25 08:41:51 wifitest kernel: [  730.450685] RTL871X: nolinked power save leave
Dec 25 08:41:59 wifitest kernel: [  738.596569] RTL871X: nolinked power save enter
Dec 25 08:43:12 wifitest kernel: [  811.431518] RTL871X: nolinked power save leave
Dec 25 08:43:20 wifitest kernel: [  819.594823] RTL871X: nolinked power save enter
Dec 25 08:47:15 wifitest kernel: [ 1054.562733] RTL871X: nolinked power save leave
Dec 25 08:47:23 wifitest kernel: [ 1062.459184] RTL871X: set ssid [                ] fw_state=0x00000008
Dec 25 08:47:23 wifitest kernel: [ 1062.459321] RTL871X: set bssid:00:00:00:00:00:00
Dec 25 08:47:24 wifitest kernel: [ 1062.967109] VDF_enable
Dec 25 08:47:25 wifitest kernel: [ 1063.747828] VDF_enable
Dec 25 08:47:25 wifitest kernel: [ 1064.529970] VDF_enable
Dec 25 08:47:26 wifitest kernel: [ 1065.430815] RTL871X: start auth
Dec 25 08:47:26 wifitest kernel: [ 1065.521740] RTL871X: auth success, start assoc
Dec 25 08:47:26 wifitest kernel: [ 1065.535901] RTL871X: assoc success
Dec 25 08:47:26 wifitest kernel: [ 1065.537144] RTL871X: send eapol packet
Dec 25 08:47:26 wifitest kernel: [ 1065.543640] RTL871X: send eapol packet
Dec 25 08:47:26 wifitest kernel: [ 1065.556597] UpdateHalRAMask8812A => mac_id:0, networkType:0x44, mask:0x003ffff0
Dec 25 08:47:26 wifitest kernel: [ 1065.556597]          ==> rssi_level:0, rate_bitmap:0x003ff010
Dec 25 08:47:26 wifitest kernel: [ 1065.675115] RTL871X: set pairwise key to hw: alg:4(WEP40-1 WEP104-5 TKIP-2 AES-4) camid:4
Dec 25 08:47:26 wifitest kernel: [ 1065.675121] RTL871X: set group key to hw: alg:4(WEP40-1 WEP104-5 TKIP-2 AES-4) keyid:2
Dec 25 08:47:27 wifitest kernel: [ 1065.834460] UpdateHalRAMask8812A => mac_id:0, networkType:0x44, mask:0x003ffff0
Dec 25 08:47:27 wifitest kernel: [ 1065.834460]          ==> rssi_level:1, rate_bitmap:0x003f8000
Dec 25 08:51:58 wifitest kernel: [    0.000000] Linux version 5.10.0-33-amd64 (debian-kernel@lists.debian.org) (gcc-10 (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #1 SMP Debian 5.10.226-1 (2024-10-03)

対応内容

RDP クライアントのクリップボードを無効化

事象発生前、巨大な JSON ファイルをクリップボードコピーし間違って貼り付けようとした時に止まったためクリップボード転送回りが怪しいと思い対応したら解決した。