Package: src:linux Version: 4.19.208-1 Severity: important Dear Maintainer,
* What led up to the situation? Installing and running in production a fresh debian 10 with php/apache2 installed. This is a virtual machine with 8 virtual CPU / 4 physical CPU / 8 GB Ram, running on an OpenNebula cluster. The VM freeze apparantly randomly (from 1 to 10 times a day), during approximatively 1 minute then come back without any manual action or reboot. I tried to reinstall the VM and the same issue occurs. This is the most active VM of the OpenNebula cluster. The other VM of the Cluster from the same vm template does not have the issue. The kernel trace is not exactly the same each time, but the behavior seems the same. Let me know if I need to update each one. I did not see any relevant log on the OpenNebula worker (hypervisor), which have these packages installed: root@one-w-2-th3:~# dpkg -l | grep libvirt ii libvirt-clients 5.0.0-4+deb10u1 amd64 Programs for the libvirt library ii libvirt-daemon 5.0.0-4+deb10u1 amd64 Virtualization daemon ii libvirt-daemon-system 5.0.0-4+deb10u1 amd64 Libvirt daemon configuration files ii libvirt0:amd64 5.0.0-4+deb10u1 amd64 library for interfacing with different virtualization systems root@one-w-2-th3:~# dpkg -l | grep qemu ii ipxe-qemu 1.0.0+git-20190125.36a4c85-1 all PXE boot firmware - ROM images for qemu ii qemu-block-extra:amd64 1:3.1+dfsg-8+deb10u8 amd64 extra block backend modules for qemu-system and qemu-utils ii qemu-kvm 1:3.1+dfsg-8+deb10u8 amd64 QEMU Full virtualization on x86 hardware ii qemu-system-common 1:3.1+dfsg-8+deb10u8 amd64 QEMU full system emulation binaries (common files) ii qemu-system-data 1:3.1+dfsg-8+deb10u8 all QEMU full system emulation (data files) ii qemu-system-gui 1:3.1+dfsg-8+deb10u8 amd64 QEMU full system emulation binaries (user interface and audio support) ii qemu-system-x86 1:3.1+dfsg-8+deb10u8 amd64 QEMU full system emulation binaries (x86) ii qemu-utils 1:3.1+dfsg-8+deb10u8 amd64 QEMU utilities root@one-w-2-th3:~# dpkg -l | grep nebula ii opennebula-common 5.12.0.1-1.ce all Common OpenNebula package shared by various components (Community Edition) ii opennebula-common-onescape 5.12.0.1-1.ce all Helpers for OpenNebula OneScape project (Community Edition) ii opennebula-node 5.12.0.1-1.ce all Services for OpenNebula KVM node (Community Edition) root@one-w-2-th3:~# uname -a Linux one-w-2-th3 4.19.0-10-amd64 #1 SMP Debian 4.19.132-1 (2020-07-24) x86_64 GNU/Linux * What exactly did you do (or not do) that was effective (or ineffective)? - apt update && apt upgrade && reboot - reinstall the virtual machine from template - migrate to another opennebula worker * What was the outcome of this action? no effect, the issue still occur * What outcome did you expect instead? no more freeze -- Package-specific info: ** Version: Linux version 4.19.0-18-amd64 (debian-ker...@lists.debian.org) (gcc version 8.3.0 (Debian 8.3.0-6)) #1 SMP Debian 4.19.208-1 (2021-09-29) Linux version 4.19.0-11-amd64 (debian-ker...@lists.debian.org) (gcc version 8.3.0 (Debian 8.3.0-6)) #1 SMP Debian 4.19.146-1 (2020-09-17) ** Command line: BOOT_IMAGE=/boot/vmlinuz-4.19.0-18-amd64 root=/dev/mapper/data-system ro console=ttyS0,19200n8 quiet ** Tainted: L (16384) * Kernel has detected soft lockup before. ** Kernel log: [1197442.240847] RAX: 0000000000000040 RBX: ffff8c3e6e67a000 RCX: 00000000944b0156 [1197442.240848] RDX: ffffac0380cad000 RSI: 0000000000000282 RDI: 0000000000000282 [1197442.240848] RBP: ffff8c3e0ff9b700 R08: 0000000000000001 R09: 0000000000000000 [1197442.240849] R10: 0000000080000062 R11: 000073c340000000 R12: ffff8c3e742aa400 [1197442.240850] R13: 0000000000000001 R14: 00000000b0000062 R15: 000000023231ccde [1197442.240851] ? apic_timer_interrupt+0xa/0x20 [1197442.240858] dev_hard_start_xmit+0xa5/0x210 [1197442.240861] sch_direct_xmit+0x111/0x380 [1197442.240862] __qdisc_run+0x14d/0x550 [1197442.240864] __dev_queue_xmit+0x406/0x910 [1197442.240867] ? fib6_table_lookup+0x12a/0x320 [1197442.240870] ip6_finish_output2+0x360/0x5b0 [1197442.240872] ? rt6_find_cached_rt+0x7a/0xc0 [1197442.240873] ? ip6_pol_route+0xf4/0x3e0 [1197442.240875] ? ip6_finish_output+0x112/0x280 [1197442.240876] ip6_output+0x68/0x120 [1197442.240879] ? flow_hash_from_keys+0x145/0x190 [1197442.240881] ? ip6_route_output_flags+0xae/0xf0 [1197442.240882] ip6_xmit+0x2b0/0x5c0 [1197442.240886] tcp_v6_send_response+0x5a6/0x6b0 [1197442.240889] tcp_v6_send_reset+0x1ec/0x2b0 [1197442.240891] tcp_v6_rcv+0x7a0/0xbd0 [1197442.240893] ip6_input_finish+0xba/0x480 [1197442.240895] ip6_input+0xa0/0xb0 [1197442.240896] ipv6_rcv+0xce/0xe0 [1197442.240899] __netif_receive_skb_one_core+0x5a/0x80 [1197442.240900] netif_receive_skb_internal+0x2f/0xa0 [1197442.240902] napi_gro_receive+0xba/0xe0 [1197442.240904] cp_rx_poll+0x2f7/0x530 [8139cp] [1197442.240906] net_rx_action+0x149/0x3b0 [1197442.240908] __do_softirq+0xde/0x2d8 [1197442.240911] irq_exit+0xba/0xc0 [1197442.240913] smp_apic_timer_interrupt+0x74/0x140 [1197442.240914] apic_timer_interrupt+0xf/0x20 [1197442.240914] </IRQ> [1197442.240917] RIP: 0010:queue_delayed_work_on+0x27/0x40 [1197442.240919] Code: 00 00 00 0f 1f 44 00 00 53 9c 58 0f 1f 44 00 00 48 89 c3 fa 66 0f 1f 44 00 00 f0 48 0f ba 2a 00 73 12 45 31 c0 48 89 df 57 9d <0f> 1f 44 00 00 44 89 c0 5b c3 e8 4a ff ff ff 41 b8 01 00 00 00 eb [1197442.240919] RSP: 0018:ffffac0381dbbe70 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [1197442.240920] RAX: 0000000000000001 RBX: 0000000000000246 RCX: 0000000000000000 [1197442.240921] RDX: 0000000000000000 RSI: 0000000000000046 RDI: 0000000000000246 [1197442.240922] RBP: 0000000000000003 R08: 0000000000000001 R09: ffff8c3e77003230 [1197442.240922] R10: ffff8c3e77003258 R11: 0000000000000000 R12: 000000000001f740 [1197442.240923] R13: 0000000000000000 R14: ffff8c3e213d8b40 R15: ffffffffa3075e08 [1197442.240926] vmstat_shepherd+0x68/0xa0 [1197442.240928] process_one_work+0x1a7/0x3a0 [1197442.240930] worker_thread+0x30/0x390 [1197442.240931] ? create_worker+0x1a0/0x1a0 [1197442.240933] kthread+0x112/0x130 [1197442.240935] ? kthread_bind+0x30/0x30 [1197442.240936] ret_from_fork+0x35/0x40 [1197472.677037] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [ksoftirqd/0:9] [1197472.678087] Modules linked in: nf_tables nfnetlink tcp_diag udp_diag inet_diag isofs cirrus ttm drm_kms_helper pcc_cpufreq drm virtio_balloon sg joydev serio_raw evdev pcspkr qemu_fw_cfg button dummy ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 crc32c_generic fscrypto ecb crypto_simd cryptd glue_helper aes_x86_64 dm_mod sr_mod cdrom sd_mod ata_generic 8139too ata_piix libata sym53c8xx uhci_hcd scsi_transport_spi ehci_hcd scsi_mod i2c_piix4 virtio_pci usbcore virtio_ring psmouse virtio 8139cp floppy mii usb_common [1197472.678203] CPU: 0 PID: 9 Comm: ksoftirqd/0 Tainted: G L 4.19.0-18-amd64 #1 Debian 4.19.208-1 [1197472.678207] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [1197472.678219] RIP: 0010:cp_start_xmit+0x32e/0x8c5 [8139cp] [1197472.678224] Code: 00 48 83 80 48 01 00 00 01 48 8b 74 24 08 48 8b 7c 24 10 e8 14 e4 64 e2 48 8b 93 c0 08 00 00 b8 40 00 00 00 88 82 d9 00 00 00 <48> 83 c4 30 31 c0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 44 2b b5 84 00 [1197472.678225] RSP: 0018:ffffac0380c9b690 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [1197472.678227] RAX: 0000000000000040 RBX: ffff8c3e6e67a000 RCX: 00000000944b2fed [1197472.678228] RDX: ffffac0380cad000 RSI: 0000000000000286 RDI: 0000000000000286 [1197472.678229] RBP: ffff8c3e6d6c7900 R08: 0000000000000001 R09: 0000000000000000 [1197472.678230] R10: 0000000080000070 R11: 0000000000000155 R12: ffff8c3e742aa550 [1197472.678231] R13: 0000000000000016 R14: 00000000b0000070 R15: 00000001fad27e0a [1197472.678232] FS: 0000000000000000(0000) GS:ffff8c3e77a00000(0000) knlGS:0000000000000000 [1197472.678233] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [1197472.678234] CR2: 00007fea6fdf77b8 CR3: 0000000233e70000 CR4: 00000000000006f0 [1197472.678237] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [1197472.678238] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [1197472.678241] Call Trace: [1197472.678265] ? skb_checksum_help+0x84/0x1a0 [1197472.678267] dev_hard_start_xmit+0xa5/0x210 [1197472.678275] sch_direct_xmit+0x111/0x380 [1197472.678277] __qdisc_run+0x14d/0x550 [1197472.678279] __dev_queue_xmit+0x406/0x910 [1197472.678283] ? fib6_table_lookup+0x12a/0x320 [1197472.678286] ip6_finish_output2+0x360/0x5b0 [1197472.678288] ? rt6_find_cached_rt+0x7a/0xc0 [1197472.678290] ? ip6_pol_route+0xf4/0x3e0 [1197472.678292] ? ip6_finish_output+0x112/0x280 [1197472.678294] ip6_output+0x68/0x120 [1197472.678297] ? flow_hash_from_keys+0x145/0x190 [1197472.678298] ? ip6_route_output_flags+0xae/0xf0 [1197472.678300] ip6_xmit+0x2b0/0x5c0 [1197472.678317] tcp_v6_send_response+0x5a6/0x6b0 [1197472.678320] tcp_v6_send_reset+0x1ec/0x2b0 [1197472.678333] tcp_v6_rcv+0x7a0/0xbd0 [1197472.678336] ip6_input_finish+0xba/0x480 [1197472.678337] ip6_input+0xa0/0xb0 [1197472.678339] ipv6_rcv+0xce/0xe0 [1197472.678341] __netif_receive_skb_one_core+0x5a/0x80 [1197472.678343] netif_receive_skb_internal+0x2f/0xa0 [1197472.678344] napi_gro_receive+0xba/0xe0 [1197472.678347] cp_rx_poll+0x2f7/0x530 [8139cp] [1197472.678349] net_rx_action+0x149/0x3b0 [1197472.678351] __do_softirq+0xde/0x2d8 [1197472.678356] ? sort_range+0x20/0x20 [1197472.678358] run_ksoftirqd+0x26/0x40 [1197472.678360] smpboot_thread_fn+0xc5/0x160 [1197472.678362] kthread+0x112/0x130 [1197472.678364] ? kthread_bind+0x30/0x30 [1197472.678367] ret_from_fork+0x35/0x40 ** Model information sys_vendor: QEMU product_name: Standard PC (i440FX + PIIX, 1996) product_version: pc-i440fx-3.1 chassis_vendor: QEMU chassis_version: pc-i440fx-3.1 bios_vendor: SeaBIOS bios_version: 1.12.0-1 ** Loaded modules: nf_tables nfnetlink tcp_diag udp_diag inet_diag isofs cirrus ttm drm_kms_helper pcc_cpufreq drm virtio_balloon sg joydev serio_raw evdev pcspkr qemu_fw_cfg button dummy ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 crc32c_generic fscrypto ecb crypto_simd cryptd glue_helper aes_x86_64 dm_mod sr_mod cdrom sd_mod ata_generic 8139too ata_piix libata sym53c8xx uhci_hcd scsi_transport_spi ehci_hcd scsi_mod i2c_piix4 virtio_pci usbcore virtio_ring psmouse virtio 8139cp floppy mii usb_common ** PCI devices: 00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma] [8086:1237] (rev 02) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] [8086:7000] Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- 00:01.1 IDE interface [0101]: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] [8086:7010] (prog-if 80 [ISA Compatibility mode-only controller, supports bus mastering]) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Region 0: [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8] Region 1: [virtual] Memory at 000003f0 (type 3, non-prefetchable) Region 2: [virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8] Region 3: [virtual] Memory at 00000370 (type 3, non-prefetchable) Region 4: I/O ports at c440 [size=16] Kernel driver in use: ata_piix Kernel modules: ata_piix, ata_generic 00:01.2 USB controller [0c03]: Intel Corporation 82371SB PIIX3 USB [Natoma/Triton II] [8086:7020] (rev 01) (prog-if 00 [UHCI]) Subsystem: Red Hat, Inc QEMU Virtual Machine [1af4:1100] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin D routed to IRQ 11 Region 4: I/O ports at c400 [size=32] Kernel driver in use: uhci_hcd Kernel modules: uhci_hcd 00:01.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI [8086:7113] (rev 03) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin A routed to IRQ 9 Kernel driver in use: piix4_smbus Kernel modules: i2c_piix4 00:02.0 VGA compatible controller [0300]: Cirrus Logic GD 5446 [1013:00b8] (prog-if 00 [VGA controller]) Subsystem: Red Hat, Inc QEMU Virtual Machine [1af4:1100] Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Region 0: Memory at fc000000 (32-bit, prefetchable) [size=32M] Region 1: Memory at febd2000 (32-bit, non-prefetchable) [size=4K] Expansion ROM at 000c0000 [disabled] [size=128K] Kernel driver in use: cirrus Kernel modules: cirrusfb, cirrus 00:03.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL-8100/8101L/8139 PCI Fast Ethernet Adapter [10ec:8139] (rev 20) Subsystem: Red Hat, Inc QEMU Virtual Machine [1af4:1100] Physical Slot: 3 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at c000 [size=256] Region 1: Memory at febd3000 (32-bit, non-prefetchable) [size=256] Expansion ROM at feb00000 [disabled] [size=256K] Kernel driver in use: 8139cp Kernel modules: 8139cp, 8139too 00:04.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL-8100/8101L/8139 PCI Fast Ethernet Adapter [10ec:8139] (rev 20) Subsystem: Red Hat, Inc QEMU Virtual Machine [1af4:1100] Physical Slot: 4 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 11 Region 0: I/O ports at c100 [size=256] Region 1: Memory at febd4000 (32-bit, non-prefetchable) [size=256] Expansion ROM at feb40000 [disabled] [size=256K] Kernel driver in use: 8139cp Kernel modules: 8139cp, 8139too 00:05.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL-8100/8101L/8139 PCI Fast Ethernet Adapter [10ec:8139] (rev 20) Subsystem: Red Hat, Inc QEMU Virtual Machine [1af4:1100] Physical Slot: 5 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 11 Region 0: I/O ports at c200 [size=256] Region 1: Memory at febd5000 (32-bit, non-prefetchable) [size=256] Expansion ROM at feb80000 [disabled] [size=256K] Kernel driver in use: 8139cp Kernel modules: 8139cp, 8139too 00:06.0 SCSI storage controller [0100]: LSI Logic / Symbios Logic 53c895a [1000:0012] Physical Slot: 6 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 255, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at c300 [size=256] Region 1: Memory at febd6000 (32-bit, non-prefetchable) [size=1K] Region 2: Memory at febd0000 (32-bit, non-prefetchable) [size=8K] Kernel driver in use: sym53c8xx Kernel modules: sym53c8xx 00:07.0 Unclassified device [00ff]: Red Hat, Inc Virtio memory balloon [1af4:1002] Subsystem: Red Hat, Inc Virtio memory balloon [1af4:0005] Physical Slot: 7 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at c420 [size=32] Region 4: Memory at fe000000 (64-bit, prefetchable) [size=16K] Capabilities: [84] Vendor Specific Information: VirtIO: <unknown> BAR=0 offset=00000000 size=00000000 Capabilities: [70] Vendor Specific Information: VirtIO: Notify BAR=4 offset=00003000 size=00001000 multiplier=00000004 Capabilities: [60] Vendor Specific Information: VirtIO: DeviceCfg BAR=4 offset=00002000 size=00001000 Capabilities: [50] Vendor Specific Information: VirtIO: ISR BAR=4 offset=00001000 size=00001000 Capabilities: [40] Vendor Specific Information: VirtIO: CommonCfg BAR=4 offset=00000000 size=00001000 Kernel driver in use: virtio-pci Kernel modules: virtio_pci ** USB devices: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub -- System Information: Debian Release: 10.11 APT prefers oldstable-updates APT policy: (500, 'oldstable-updates'), (500, 'oldstable') Architecture: amd64 (x86_64) Kernel: Linux 4.19.0-18-amd64 (SMP w/8 CPU cores) Kernel taint flags: TAINT_SOFTLOCKUP Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages linux-image-4.19.0-18-amd64 depends on: ii initramfs-tools [linux-initramfs-tool] 0.133+deb10u1 ii kmod 26-1 ii linux-base 4.6 Versions of packages linux-image-4.19.0-18-amd64 recommends: ii apparmor 2.13.2-10 ii firmware-linux-free 3.4 Versions of packages linux-image-4.19.0-18-amd64 suggests: pn debian-kernel-handbook <none> ii grub-pc 2.02+dfsg1-20+deb10u4 pn linux-doc-4.19 <none> Versions of packages linux-image-4.19.0-18-amd64 is related to: pn firmware-amd-graphics <none> pn firmware-atheros <none> pn firmware-bnx2 <none> pn firmware-bnx2x <none> pn firmware-brcm80211 <none> pn firmware-cavium <none> pn firmware-intel-sound <none> pn firmware-intelwimax <none> pn firmware-ipw2x00 <none> pn firmware-ivtv <none> pn firmware-iwlwifi <none> pn firmware-libertas <none> pn firmware-linux-nonfree <none> pn firmware-misc-nonfree <none> pn firmware-myricom <none> pn firmware-netxen <none> pn firmware-qlogic <none> pn firmware-realtek <none> pn firmware-samsung <none> pn firmware-siano <none> pn firmware-ti-connectivity <none> pn xen-hypervisor <none> -- no debconf information