Linux 5.10 CONFIG_PCIE_BW Is spamming dmesg
by walecha from LinuxQuestions.org on (#5BWRX)
With Slackware enabling CONFIG_PCIE_BW in Linux 5.10.1, my dmesg get spammed with this message:
Code:[ 887.495904] nvme 0000:02:00.0: 15.752 Gb/s available PCIe bandwidth, limited by 8.0 GT/s PCIe x2 link at 0000:00:01.3 (capable of 31.504 Gb/s with 8.0 GT/s PCIe x4 link)
[ 891.488760] nvme 0000:02:00.0: 15.752 Gb/s available PCIe bandwidth, limited by 8.0 GT/s PCIe x2 link at 0000:00:01.3 (capable of 31.504 Gb/s with 8.0 GT/s PCIe x4 link)Although these messages are just warning (or less), it's pretty annoying because they spawn every now and then, my guess is every time when the storage is being polled. From my testing using this option with this kernel since rc1 version, the dmesg console will become full of these spam messages.
For now, I've rebuild the kernel with CONFIG_PCIE_BW disabled.
Code:[ 887.495904] nvme 0000:02:00.0: 15.752 Gb/s available PCIe bandwidth, limited by 8.0 GT/s PCIe x2 link at 0000:00:01.3 (capable of 31.504 Gb/s with 8.0 GT/s PCIe x4 link)
[ 891.488760] nvme 0000:02:00.0: 15.752 Gb/s available PCIe bandwidth, limited by 8.0 GT/s PCIe x2 link at 0000:00:01.3 (capable of 31.504 Gb/s with 8.0 GT/s PCIe x4 link)Although these messages are just warning (or less), it's pretty annoying because they spawn every now and then, my guess is every time when the storage is being polled. From my testing using this option with this kernel since rc1 version, the dmesg console will become full of these spam messages.
For now, I've rebuild the kernel with CONFIG_PCIE_BW disabled.