¶ Low Disk Space na instalação
¶ Quem nunca passou por essa msg abaixo?
-
Se observarmos os logs (sudo tail -f /var/log/syslog)
-
e o consumo de CPU e HD (pelo Menu -> Monitor do Sistema) veremos um comportamento muito estranho:
¶ O que estava acontecendo?
Bom, claramente é possível ver uma quantidade absurda de logs repetidamente com o trecho abaixo:
Oct 4 16:50:41 imagetech-systemproductname kernel: [ 253.663750] pcieport 0000:00:1d.0: AER: Corrected error received: 0000:00:1d.0
Oct 4 16:50:41 imagetech-systemproductname kernel: [ 253.663753] pcieport 0000:00:1d.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, (Receiver ID)
Oct 4 16:50:41 imagetech-systemproductname kernel: [ 253.663754] pcieport 0000:00:1d.0: device [8086:43b2] error status/mask=00000001/00002000
Oct 4 16:50:41 imagetech-systemproductname kernel: [ 253.663754] pcieport 0000:00:1d.0: [ 0] RxErr
- Essa quantidade de logs faz a partição do live cd encher antes mesmo de terminar a instalação causando a msg Low Disk Space, e impossibilitando a instalação.
Tentei com Linux Mint Cinnamon 21, Linux Mint Debian Edition 6, AlmaLinux 9 e Fedora 38. Todos apresentaram o mesmo sintoma.
¶ Solução
Pesquisando no oráculo, encontrei uma solução paleativa e procurei adaptar para o meu cenário (um hardware diferente, mas com os mesmos sintomas).
¶ Como instalar então?
Abra o terminal e digite
sudo setpci -v -d 8086:43B2 CAP_EXP+0x8.w=0x0e
Agora prossiga com a instalação normal.
¶ Depois de instalado
É meu amigo, depois de instalado, o problema está lá novamente. Vamos resolver?
Abra o terminal e digite
sudo su -
cat << '_EOF' > /etc/systemd/system/fix-intel_wifi_aer-avell_g1513_fire_v3.service
[Unit]
Description=Fix for AER's excessive logging for Intel Wireless (Avell G1513 Fire V3)
After=systemd-modules-load.service
[Service]
Type=oneshot
# Change your device and vendor (or bus/slot/function accordingly)
ExecStart=/usr/bin/setpci -v -d 8086:43B2 CAP_EXP+0x8.w=0x0e
RemainAfterExit=yes
[Install]
WantedBy=network.target
_EOF
systemctl daemon-reload
systemctl enable fix-intel_wifi_aer-avell_g1513_fire_v3.service
systemctl start fix-intel_wifi_aer-avell_g1513_fire_v3.service
Pronto! Tudo funcionando normalmente (ou quase). Agora você pode também limpar os logs monstruosos que foram gerados indevidamente.
ll -lh /var/log/sys*
> /var/log/syslog
¶ Alguns detalhes mais técnicos extras
O comando sugerio na referência citada é: sudo setpci -v -d 8086:a114 CAP_EXP+0x8.w que difere por um único parâmetro: sudo setpci -v -d 8086:43B2 CAP_EXP+0x8.w=0x0e
De onde eu tirei esse parâmetro 8086:43B2?
sudo lspci -nn
00:00.0 Host bridge [0600]: Intel Corporation Device [8086:9b43] (rev 05)
00:02.0 VGA compatible controller [0300]: Intel Corporation CometLake-S GT2 [UHD Graphics 630] [8086:9bc5] (rev 05)
00:14.0 USB controller [0c03]: Intel Corporation Tiger Lake-H USB 3.2 Gen 2x1 xHCI Host Controller [8086:43ed] (rev 11)
00:14.2 RAM memory [0500]: Intel Corporation Tiger Lake-H Shared SRAM [8086:43ef] (rev 11)
00:15.0 Serial bus controller [0c80]: Intel Corporation Tiger Lake-H Serial IO I2C Controller #0 [8086:43e8] (rev 11)
00:16.0 Communication controller [0780]: Intel Corporation Tiger Lake-H Management Engine Interface [8086:43e0] (rev 11)
00:17.0 SATA controller [0106]: Intel Corporation Device [8086:43d2] (rev 11)
00:1c.0 PCI bridge [0604]: Intel Corporation Tiger Lake-H PCI Express Root Port #5 [8086:43bc] (rev 11)
00:1d.0 PCI bridge [0604]: Intel Corporation Device [8086:43b2] (rev 11) <===== *****
00:1f.0 ISA bridge [0601]: Intel Corporation Device [8086:4388] (rev 11)
00:1f.3 Audio device [0403]: Intel Corporation Device [8086:f0c8] (rev 11)
00:1f.4 SMBus [0c05]: Intel Corporation Tiger Lake-H SMBus Controller [8086:43a3] (rev 11)
00:1f.5 Serial bus controller [0c80]: Intel Corporation Tiger Lake-H SPI Controller [8086:43a4] (rev 11)
00:1f.6 Ethernet controller [0200]: Intel Corporation Ethernet Connection (14) I219-V [8086:15fa] (rev 11)
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8188EE Wireless Network Adapter [10ec:8179] (rev 01)
ou desse outro jeito:
sudo lspci -v -s 00:1d.0
00:1d.0 PCI bridge: Intel Corporation Device 43b2 (rev 11) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 123
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 00003000-00003fff [size=4K]
Memory behind bridge: a0200000-a02fffff [size=1M]
Prefetchable memory behind bridge: [disabled]
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device 8694
Capabilities: [a0] Power Management version 3
Capabilities: [100] Advanced Error Reporting
Capabilities: [220] Access Control Services
Capabilities: [150] Precision Time Measurement
Capabilities: [a30] Secondary PCI Express
Capabilities: [a00] Downstream Port Containment
Kernel driver in use: pcieport
*-pci:0
description: PCI bridge
product: Tiger Lake-H PCI Express Root Port #5 [8086:43BC]
vendor: Intel Corporation [8086]
physical id: 1c
bus info: pci@0000:00:1c.0
version: 11
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:122 ioport:4000(size=4096) memory:9f800000-a01fffff ioport:4010000000(size=2097152)
*-pci:1
description: PCI bridge
product: Intel Corporation [8086:43B2]
vendor: Intel Corporation [8086]
physical id: 1d
bus info: pci@0000:00:1d.0
version: 11
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:123 ioport:3000(size=4096) memory:a0200000-a02fffff
¶ Referências
- Detalhes do problema - https://gist.github.com/Brainiarc7/3179144393747f35e5155fdbfd675554
- Forum do Linux Mint - https://forums.linuxmint.com/viewtopic.php?p=2009597#p2009597
- Problemas de comunicação entre a PCI, a placa mãe e o kernel - https://www.reddit.com/r/linuxquestions/comments/g8pbku/any_undesirable_side_effects_of_pcinommconf/
- Debugando problemas de PCI - https://support.xilinx.com/s/article/1148199?language=en_US