我已经在我的 Acer 机器上使用 Ubuntu 22 大约 4 个月了。就在昨天，我开始遇到系统随机冻结的情况，持续时间很长，以至于我不得不通过关闭笔记本电脑的电源来重新启动。通过 journalctl 检查后，日志末尾的几行引起了我的注意（<REDACTED> 替换了我的主机名）：
Mar 14 19:42:34 <REDACTED> kernel: logitech-djreceiver 0003:046D:C534.0003: device of type eQUAD nano Lite (0x0a) connected on slot 2
Mar 14 19:42:34 <REDACTED> kernel: input: Logitech Wireless Keyboard PID:4023 Keyboard as /devices/pci0000:00/0000:00:14.0/usb3/3-5/3-5:1.1/0003:046D:C534.0003/0003:046D:4023.0004/input/input24
Mar 14 19:42:34 <REDACTED> kernel: hid-generic 0003:046D:4023.0004: input,hidraw3: USB HID v1.11 Keyboard [Logitech Wireless Keyboard PID:4023] on usb-0000:00:14.0-5/input1:1
Mar 14 19:42:34 <REDACTED> kernel: input: Logitech Wireless Mouse PID:4038 Mouse as /devices/pci0000:00/0000:00:14.0/usb3/3-5/3-5:1.1/0003:046D:C534.0003/0003:046D:4038.0005/input/input29
Mar 14 19:42:34 <REDACTED> kernel: hid-generic 0003:046D:4038.0005: input,hidraw4: USB HID v1.11 Mouse [Logitech Wireless Mouse PID:4038] on usb-0000:00:14.0-5/input1:2
Mar 14 19:42:34 <REDACTED> kernel: input: Logitech Wireless Keyboard PID:4023 as /devices/pci0000:00/0000:00:14.0/usb3/3-5/3-5:1.1/0003:046D:C534.0003/0003:046D:4023.0004/input/input33
Mar 14 19:42:34 <REDACTED> kernel: logitech-hidpp-device 0003:046D:4023.0004: input,hidraw3: USB HID v1.11 Keyboard [Logitech Wireless Keyboard PID:4023] on usb-0000:00:14.0-5/input1:1
Mar 14 19:42:34 <REDACTED> kernel: input: Logitech Wireless Mouse PID:4038 as /devices/pci0000:00/0000:00:14.0/usb3/3-5/3-5:1.1/0003:046D:C534.0003/0003:046D:4038.0005/input/input34
Mar 14 19:42:34 <REDACTED> kernel: logitech-hidpp-device 0003:046D:4038.0005: input,hidraw4: USB HID v1.11 Mouse [Logitech Wireless Mouse PID:4038] on usb-0000:00:14.0-5/input1:2
Mar 14 19:42:38 <REDACTED> kernel: logitech-hidpp-device 0003:046D:4038.0005: HID++ 2.0 device connected.
Mar 14 19:47:30 <REDACTED> kernel: audit: type=1400 audit(1678837650.862:89): apparmor="DENIED" operation="open" class="file" profile="snap.firefox.firefox" name="/etc/fstab" pid=2378 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
Mar 14 19:47:30 <REDACTED> kernel: audit: type=1107 audit(1678837650.986:90): pid=664 uid=102 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_method_call" bus="system" path="/org/freedesktop/hostname1" interface="org.freedesktop.DBus.Properties" member="GetAll" mask="send" name=":1.168" pid=2378 label="snap.firefox.firefox" peer_pid=5679 peer_label="unconfined"
exe="/usr/bin/dbus-daemon" sauid=102 hostname=? addr=? terminal=?'
Mar 14 19:47:30 <REDACTED> kernel: audit: type=1107 audit(1678837650.986:91): pid=664 uid=102 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_method_call" bus="system" path="/org/freedesktop/hostname1" interface="org.freedesktop.DBus.Properties" member="GetAll" mask="send" name=":1.168" pid=2378 label="snap.firefox.firefox" peer_pid=5679 peer_label="unconfined"
exe="/usr/bin/dbus-daemon" sauid=102 hostname=? addr=? terminal=?'
Mar 14 19:50:06 <REDACTED> kernel: ------------[ cut here ]------------
Mar 14 19:50:06 <REDACTED> kernel: BUG: IRQ stack guard page was hit at 00000000d765c88f (stack is 000000003b2a86ae..00000000f897f8b7)
Mar 14 19:50:06 <REDACTED> kernel: BUG: #DF stack guard page was hit at 00000000a55b29b0 (stack is 000000005eb8b773..00000000246c01b8)
Mar 14 19:50:06 <REDACTED> kernel: BUG: #DF stack guard page was hit at 00000000a55b29b0 (stack is 000000005eb8b773..00000000246c01b8)
Mar 14 19:50:06 <REDACTED> kernel: BUG: #DF stack guard page was hit at 00000000a55b29b0 (stack is 000000005eb8b773..00000000246c01b8)
Mar 14 19:50:06 <REDACTED> kernel: BUG: #DF stack guard page was hit at 00000000a55b29b0 (stack is 000000005eb8b773..00000000246c01b8)
Mar 14 19:50:06 <REDACTED> kernel: BUG: #DF stack guard page was hit at 00000000a55b29b0 (stack is 000000005eb8b773..00000000246c01b8)
Mar 14 19:50:06 <REDACTED> kernel: BUG: #DF stack guard page was hit at 00000000a55b29b0 (stack is 000000005eb8b773..00000000246c01b8)
Mar 14 19:50:06 <REDACTED> kernel: BUG: #DF stack guard page was hit at 00000000a55b29b0 (stack is 000000005eb8b773..00000000246c01b8)
Mar 14 19:50:06 <REDACTED> kernel: BUG: #DF stack guard page was hit at 00000000a55b29b0 (stack is 000000005eb8b773..00000000246c01b8)
Mar 14 19:50:06 <REDACTED> kernel: BUG: #DF stack guard page was hit at 00000000a55b29b0 (stack is 000000005eb8b773..00000000246c01b8)
Mar 14 19:50:06 <REDACTED> kernel: BUG: #DF stack guard page was hit at 00000000a55b29b0 (stack is 000000005eb8b773..00000000246c01b8)
Mar 14 19:50:06 <REDACTED> kernel: BUG: #DF stack guard page was hit at 00000000a55b29b0 (stack is 000000005eb8b773..00000000246c01b8)
Mar 14 19:50:06 <REDACTED> kernel: BUG: #DF stack guard page was hit at 00000000a55b29b0 (stack is 000000005eb8b773..00000000246c01b8)
还有一次，我尝试在系统监视器上查看内存使用情况。当系统冻结时，RAM 使用量仅为其限制的一半，因此我认为 RAM 没有耗尽。
在其中一次启动时，我不断收到弹出窗口，指示 ibus 意外关闭，并且 Ubuntu 遇到意外错误（“详细信息”下拉菜单提到了有关 gsd 的一些信息）。journalctl 显示：
exe="/usr/bin/dbus-daemon" sauid=102 hostname=? addr=? terminal=?'
Mar 15 15:59:44 <REDACTED> kernel: audit: type=1400 audit(1678910384.347:85): apparmor="DENIED" operation="open" class="file" profile="snap.snap-store.snap-store" name="/var/lib/snapd/hostfs/usr/share/discord/discord.desktop" pid=2450 comm="pool-org.gnome." requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
Mar 15 15:59:44 <REDACTED> kernel: audit: type=1400 audit(1678910384.516:86): apparmor="DENIED" operation="open" class="file" profile="snap.snap-store.snap-store" name="/var/lib/snapd/hostfs/usr/share/discord/discord.desktop" pid=2450 comm="pool-org.gnome." requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
Mar 15 15:59:45 <REDACTED> kernel: audit: type=1326 audit(1678910385.058:87): auid=1000 uid=1000 gid=1000 ses=3 subj=snap.snap-store.snap-store pid=2450 comm="pool-org.gnome." exe="/snap/snap-store/638/usr/bin/snap-store" sig=0 arch=c000003e syscall=93 compat=0 ip=0x7fd0dc3a739b code=0x50000
Mar 15 16:00:59 <REDACTED> kernel: gsd-power[2335]: segfault at 7f2f6debf4f0 ip 00007f2f6debf4f0 sp 00007ffe86acf948 error 14 in libgvfscommon.so[7f2f6dee9000+12000]
Mar 15 16:00:59 <REDACTED> kernel: Code: Unable to access opcode bytes at RIP 0x7f2f6debf4c6.
Mar 15 16:00:59 <REDACTED> kernel: gsd-keyboard[2331]: segfault at 7f01861e84f0 ip 00007f01861e84f0 sp 00007ffde209c7b8 error 14
Mar 15 16:00:59 <REDACTED> kernel: Code: Unable to access opcode bytes at RIP 0x7f01861e84c6.
Mar 15 16:00:59 <REDACTED> kernel: gsd-media-keys[2333]: segfault at 7fb386c954f0 ip 00007fb386c954f0 sp 00007ffd74af5198 error 14 in libgvfscommon.so[7fb386cbf000+12000]
Mar 15 16:00:59 <REDACTED> kernel: Code: Unable to access opcode bytes at RIP 0x7fb386c954c6.
Mar 15 16:00:59 <REDACTED> kernel: evolution-alarm[2382]: segfault at 7f6395ef54f0 ip 00007f6395ef54f0 sp 00007ffedf1cfe08 error 14 in libgvfscommon.so[7f6395f1f000+12000]
Mar 15 16:00:59 <REDACTED> kernel: Code: Unable to access opcode bytes at RIP 0x7f6395ef54c6.
Mar 15 16:00:59 <REDACTED> kernel: gsd-wacom[2357]: segfault at 7f3fb96b84f0 ip 00007f3fb96b84f0 sp 00007ffc0fe13b38 error 14 in libgvfscommon.so[7f3fb96e2000+12000]
Mar 15 16:00:59 <REDACTED> kernel: Code: Unable to access opcode bytes at RIP 0x7f3fb96b84c6.
Mar 15 16:00:59 <REDACTED> kernel: gsd-color[2324]: segfault at 7ff889ca74f0 ip 00007ff889ca74f0 sp 00007ffd370da498 error 14 in libgvfscommon.so[7ff889cd1000+12000]
Mar 15 16:00:59 <REDACTED> kernel: Code: Unable to access opcode bytes at RIP 0x7ff889ca74c6.
Mar 15 16:00:59 <REDACTED> kernel: gsd-xsettings[2359]: segfault at 7fc0145f14f0 ip 00007fc0145f14f0 sp 00007fff872d1e48 error 14 in libgvfsdbus.so[7fc0145fa000+a000]
Mar 15 16:00:59 <REDACTED> kernel: Code: Unable to access opcode bytes at RIP 0x7fc0145f14c6.
Mar 15 16:00:59 <REDACTED> kernel: ibus-extension-[2392]: segfault at 7f3724e724f0 ip 00007f3724e724f0 sp 00007ffd4f3f2598 error 14 in libgvfscommon.so[7f3724e7b000+12000]
Mar 15 16:00:59 <REDACTED> kernel: Code: Unable to access opcode bytes at RIP 0x7f3724e724c6.
Mar 15 16:00:59 <REDACTED> kernel: ibus-x11[2395]: segfault at 7fb8437504f0 ip 00007fb8437504f0 sp 00007ffd36c4ef88 error 14 in libgvfscommon.so[7fb843775000+12000]
Mar 15 16:00:59 <REDACTED> kernel: Code: Unable to access opcode bytes at RIP 0x7fb8437504c6.
Mar 15 16:01:29 <REDACTED> kernel: gsd-xsettings[5724]: segfault at 7efd126114f0 ip 00007efd126114f0 sp 00007fff7e4ac158 error 14 in libvorbisfile.so.3.3.8[7efd12620000+2000]
Mar 15 16:01:29 <REDACTED> kernel: Code: Unable to access opcode bytes at RIP 0x7efd126114c6.
Mar 15 16:01:50 <REDACTED> kernel: gsd-xsettings[5756]: segfault at 7f034301f4f0 ip 00007f034301f4f0 sp 00007fffa7899c88 error 14 in libvorbisfile.so.3.3.8[7f034302e000+2000]
Mar 15 16:01:50 <REDACTED> kernel: Code: Unable to access opcode bytes at RIP 0x7f034301f4c6.
Mar 15 16:01:53 <REDACTED> kernel: gsd-xsettings[5775]: segfault at 7f17181954f0 ip 00007f17181954f0 sp 00007fff19524f98 error 14 in libvorbisfile.so.3.3.8[7f171819f000+2000]
Mar 15 16:01:53 <REDACTED> kernel: Code: Unable to access opcode bytes at RIP 0x7f17181954c6.
Mar 15 16:02:12 <REDACTED> kernel: traps: gmain[2596] trap int3 ip:7fc999327cef sp:7fc98fb26770 error:0 in libglib-2.0.so.0.7200.4[7fc9992e8000+8f000]
内核日志能解释这种行为吗？我还可以采取哪些其他步骤来排除故障？我见过一些人的 NVidia GPU 出现问题，但我的机器没有 NVidia GPU。
输出uname -a：
Linux <REDACTED> 5.19.0-35-generic #36~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Fri Feb 17 15:17:25 UTC 2 x86_64 x86_64 x86_64 GNU/Linux