我在联想 Ideapad Gaming 3 15ARH05 上运行带有 Linux 5.11 的 Kubuntu 20.04。
休眠通常没有问题，但有时系统在恢复后会冻结。我可以看到鼠标指针，但无法移动它。切换 TTY 也不起作用。
这是我能获得的内核日志：
<3>[48338.332848] swap_info_get: Bad swap offset entry 3ff7fffffffff
<3>[48338.332854] swap_info_get: Bad swap offset entry 3ffeb0cfeffff
<1>[48338.599999] BUG: Bad page map in process ksysguard pte:40002600000001 pmd:117dba067
<1>[48338.600011] addr:00007fda48a08000 vm_flags:08000075 anon_vma:0000000000000000 mapping:ffff9cba1c90f1b8 index:1b
<1>[48338.600018] file:libpcre.so.3.13.3 fault:ext4_filemap_fault mmap:ext4_file_mmap readpage:ext4_readpage
<4>[48338.600034] CPU: 6 PID: 9468 Comm: ksysguard Tainted: P B OE 5.11.11-anbox #2
<4>[48338.600039] Hardware name: LENOVO 82EY/LNVNB161216, BIOS FCCN13WW 06/29/2020
<4>[48338.600041] Call Trace:
<4>[48338.600047] dump_stack+0x74/0x92
<4>[48338.600054] print_bad_pte.cold+0x6a/0xca
<4>[48338.600059] ? avc_has_perm+0xca/0x1f0
<4>[48338.600064] vm_normal_page+0xc5/0xd0
<4>[48338.600069] smaps_pte_range+0x4a9/0x5b0
<4>[48338.600074] __walk_page_range+0x5f5/0xc30
<4>[48338.600081] walk_page_vma+0x85/0xa0
<4>[48338.600086] smap_gather_stats.part.0+0x9d/0xc0
<4>[48338.600091] show_smaps_rollup+0x124/0x350
<4>[48338.600097] seq_read_iter+0x1c5/0x4c0
<4>[48338.600102] ? _cond_resched+0x19/0x30
<4>[48338.600108] seq_read+0xfd/0x150
<4>[48338.600112] vfs_read+0xb5/0x1b0
<4>[48338.600118] ksys_read+0x67/0xe0
<4>[48338.600124] __x64_sys_read+0x1a/0x20
<4>[48338.600129] do_syscall_64+0x38/0x90
<4>[48338.600134] entry_SYSCALL_64_after_hwframe+0x44/0xa9
<4>[48338.600139] RIP: 0033:0x7f370fdd917c
<4>[48338.600144] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 65 f8 ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 30 44 89 c7 48 89 44 24 08 e8 2f 66 f8 ff 48
<4>[48338.600148] RSP: 002b:00007fff5f0d6750 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
Oops#1 Part15
<4>[48338.332615] CPU: 10 PID: 9468 Comm: ksysguard Tainted: P B OE 5.11.11-anbox #2
<4>[48338.332624] Hardware name: LENOVO 82EY/LNVNB161216, BIOS FCCN13WW 06/29/2020
<4>[48338.332627] Call Trace:
<4>[48338.332634] dump_stack+0x74/0x92
<4>[48338.332643] print_bad_pte.cold+0x6a/0xca
<4>[48338.332648] ? avc_has_perm+0xca/0x1f0
<4>[48338.332655] vm_normal_page+0xc5/0xd0
<4>[48338.332659] smaps_pte_range+0x4a9/0x5b0
<4>[48338.332664] __walk_page_range+0x5f5/0xc30
<4>[48338.332671] walk_page_vma+0x85/0xa0
<4>[48338.332677] smap_gather_stats.part.0+0x9d/0xc0
<4>[48338.332681] show_smaps_rollup+0x124/0x350
<4>[48338.332687] seq_read_iter+0x1c5/0x4c0
<4>[48338.332692] ? _cond_resched+0x19/0x30
<4>[48338.332698] seq_read+0xfd/0x150
<4>[48338.332703] vfs_read+0xb5/0x1b0
<4>[48338.332709] ksys_read+0x67/0xe0
<4>[48338.332714] __x64_sys_read+0x1a/0x20
<4>[48338.332720] do_syscall_64+0x38/0x90
<4>[48338.332725] entry_SYSCALL_64_after_hwframe+0x44/0xa9
<4>[48338.332730] RIP: 0033:0x7f370fdd917c
<4>[48338.332735] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 65 f8 ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 30 44 89 c7 48 89 44 24 08 e8 2f 66 f8 ff 48
<4>[48338.332740] RSP: 002b:00007fff5f0d5750 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
<4>[48338.332743] RAX: ffffffffffffffda RBX: 00007f36f400d6d0 RCX: 00007f370fdd917c
<4>[48338.332743] RDX: 0000000000004000 RSI: 000055e949c07618 RDI: 0000000000000016
<4>[48338.332743] RBP: 0000000000004000 R08: 0000000000000000 R09: 00007f370e4d9698
<4>[48338.332743] R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000000
<4>[48338.332743] R13: 0000000000004000 R14: 0000000000000016 R15: 000055e949c07618
Oops#1 Part4
<6>[45091.932552] usb 1-3: reset high-speed USB device number 3 using xhci_hcd
<6>[45091.958198] [drm] kiq ring mec 2 pipe 1 q 0
<6>[45091.972534] [drm] DMUB hardware initialized: version=0x01010014
<6>[45092.129949] [drm] Failed to add display topology, DTM TA is not initialized.
<6>[45092.158308] [drm] VCN decode and encode initialized successfully(under DPG Mode).
<6>[45092.158377] [drm] JPEG decode initialized successfully.
<6>[45092.158679] amdgpu 0000:05:00.0: amdgpu: ring gfx uses VM inv eng 0 on hub 0
<6>[45092.158685] amdgpu 0000:05:00.0: amdgpu: ring comp_1.0.0 uses VM inv eng 1 on hub 0
<6>[45092.158688] amdgpu 0000:05:00.0: amdgpu: ring comp_1.1.0 uses VM inv eng 4 on hub 0
<6>[45092.158691] amdgpu 0000:05:00.0: amdgpu: ring comp_1.2.0 uses VM inv eng 5 on hub 0
<6>[45092.158693] amdgpu 0000:05:00.0: amdgpu: ring comp_1.3.0 uses VM inv eng 6 on hub 0
<6>[45092.158695] amdgpu 0000:05:00.0: amdgpu: ring comp_1.0.1 uses VM inv eng 7 on hub 0
<6>[45092.158698] amdgpu 0000:05:00.0: amdgpu: ring comp_1.1.1 uses VM inv eng 8 on hub 0
<6>[45092.158700] amdgpu 0000:05:00.0: amdgpu: ring comp_1.2.1 uses VM inv eng 9 on hub 0
<6>[45092.158702] amdgpu 0000:05:00.0: amdgpu: ring comp_1.3.1 uses VM inv eng 10 on hub 0
<6>[45092.158705] amdgpu 0000:05:00.0: amdgpu: ring kiq_2.1.0 uses VM inv eng 11 on hub 0
<6>[45092.158708] amdgpu 0000:05:00.0: amdgpu: ring sdma0 uses VM inv eng 0 on hub 1
<6>[45092.158711] amdgpu 0000:05:00.0: amdgpu: ring vcn_dec uses VM inv eng 1 on hub 1
<6>[45092.158713] amdgpu 0000:05:00.0: amdgpu: ring vcn_enc0 uses VM inv eng 4 on hub 1
<6>[45092.158715] amdgpu 0000:05:00.0: amdgpu: ring vcn_enc1 uses VM inv eng 5 on hub 1
<6>[45092.158718] amdgpu 0000:05:00.0: amdgpu: ring jpeg_dec uses VM inv eng 6 on hub 1
我尝试搜索此交换问题，但得到的答案都是 RAM 已损坏。这是一台新笔记本电脑，自从我购买以来就一直存在此问题，因此不太可能。
请注意，这台笔记本电脑之前在使用 Linux 时出现过问题，例如没有亮度和触摸板不工作。Linux 5.8 增加了对这款新 AMD CPU（AMD Ryzen 5 4600H）的支持，Linux 5.11 修复了触摸板问题。Linux 5.12 及更高版本再次损坏了触摸板。
答案1
似乎只有启用混合显卡（NVIDIA 专有驱动程序）时才会发生这种情况。如果我使用 切换到集成 GPU sudo prime-select intel，恢复工作正常。