From c8192c52b2bfa93aeb6c6639476ca217e33c4313 Mon Sep 17 00:00:00 2001 From: Leah Rowe Date: Wed, 11 Dec 2024 01:06:01 +0000 Subject: [PATCH 08/11] dell/3050micro: disable nvme hotplug in my testing, when running my 3050micro for a few days, the nvme would sometimes randomly rename. e.g. nvme0n1 renamed to nvme0n2 this might cause crashes in linux, if booting only from the nvme. in my case, i was booting from mdraid (sata+nvme) and every few days, the nvme would rename at least once, causing my RAID to become unsynced. since i'm using RAID1, this was OK and I could simply re-sync the array, but this is quite precarious indeed. if you're using raid0, that will potentially corrupt your RAID array indefinitely. this same issue manifested on the T480/T480 thinkpads, and S3 resume would break because of that, when booting from nvme, because the nvme would be "unplugged" and appear to linux as a new device (the one that you booted from). the fix there was to disable hotplugging on that pci-e slot for the nvme, so apply the same fix here for 3050 micro Signed-off-by: Leah Rowe --- src/mainboard/dell/optiplex_3050/devicetree.cb | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/mainboard/dell/optiplex_3050/devicetree.cb b/src/mainboard/dell/optiplex_3050/devicetree.cb index 039709aa4a..0678ed1765 100644 --- a/src/mainboard/dell/optiplex_3050/devicetree.cb +++ b/src/mainboard/dell/optiplex_3050/devicetree.cb @@ -45,7 +45,9 @@ chip soc/intel/skylake register "PcieRpAdvancedErrorReporting[20]" = "1" register "PcieRpLtrEnable[20]" = "1" register "PcieRpClkSrcNumber[20]" = "3" - register "PcieRpHotPlug[20]" = "1" +# disable hotplug on nvme to prevent renaming e.g. nvme0n1 rename to nvme0n2, +# which could cause crashes in linux if booting from nvme + register "PcieRpHotPlug[20]" = "0" end # Realtek LAN -- 2.39.5