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I see the following config options in RHEL/CentOS-7 kernels: CONFIG_PCIEASPM=y # CONFIG_PCIEASPM_DEBUG is not set CONFIG_PCIEASPM_DEFAULT=y # CONFIG_PCIEASPM_POWERSAVE is not set # CONFIG_PCIEASPM_PERFORMANCE is not set You might want to file a report at http://bugzilla.redhat.com and ask if this is really intended config options. |
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Toracat, do you know of a way I can get around this and disable ASPM currently? Or do I need to rebuild the kernel from source? |
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@Locane Can you try adding a kernel parameter pci_aspm=off and see if that works? |
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Yeah, sorry I didn't mention this earlier - that has no effect on the output of "cat /sys/module/pcie_aspm/parameters/policy". I don't actually know of any other way to check whether it's off or not in the OS - do you know of any? The issue we're running in to is intermittent loss of storage devices through an LSI controller, so it's hard to gauge if the problem is "fixed" or not using that parameter, since there's no checkable way to see if it's off or not. I hope that makes sense. |
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Any hint in dmesg? dmesg | grep -i aspm |
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Hi there.. i got this problem too, my PCIe card will not awake after sleep. after adding pcie_aspm.policy=performance at grub, and update the grub. after rebooting i still got the policy same at the previous [root@server6 ~]# cat /sys/module/pcie_aspm/parameters/policy [default] performance powersave My grub : GRUB_TIMEOUT=5 GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_TERMINAL_OUTPUT="console" GRUB_CMDLINE_LINUX="crashkernel=auto rhgb quiet pcie_aspm.policy=performance" GRUB_DISABLE_RECOVERY="true" |
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I had the same issue, and I solved it by modifying the grub <sudo nano /etc/default/grub> and change GRUB_CMDLINE_LINUX_DEFAULT with <GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pcie_aspm=force pcie_aspm.policy=performance"> |
- Anonymous
