I wasn't able to test this just yet as I have limited time for debugging this and it is a production system, so I need to prepare maintenance etc. so it might take some time.
Do you have any information if this is supposed to work on this kernel? I saw some patches afaik from 2017~2019 which addressed problems in this area, but I don't know yet if they made it to the ubuntu kernel. I will report back if a newer kernel fixes this. We are only using offical HWE Kernels from Ubuntu LTS releases at the moment though. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1998224 Title: pcie hotplug not working in linux-generic-hwe-18.04 5.4.0.107.121~18 Status in linux package in Ubuntu: Confirmed Bug description: situation: ubuntu 18.04 server install on a supermicro x64 host. hot plug NVME ssd into NVME U.2 HotSwap Slot. problem: hot plug does not work/ nvme is not recognised. how to test: echo 1 > /sys/bus/pci/rescan dmesg output: [Mon Nov 28 15:46:33 2022] pcieport 0000:40:01.1: bridge window [io 0x1000-0x0fff] to [bus 41] add_size 1000 [Mon Nov 28 15:46:33 2022] pcieport 0000:40:01.2: bridge window [io 0x1000-0x0fff] to [bus 42] add_size 1000 [Mon Nov 28 15:46:33 2022] pcieport 0000:40:01.1: BAR 13: no space for [io size 0x1000] [Mon Nov 28 15:46:33 2022] pcieport 0000:40:01.1: BAR 13: failed to assign [io size 0x1000] [Mon Nov 28 15:46:33 2022] pcieport 0000:40:01.2: BAR 13: no space for [io size 0x1000] [Mon Nov 28 15:46:33 2022] pcieport 0000:40:01.2: BAR 13: failed to assign [io size 0x1000] [Mon Nov 28 15:46:33 2022] pcieport 0000:40:01.2: BAR 13: no space for [io size 0x1000] [Mon Nov 28 15:46:33 2022] pcieport 0000:40:01.2: BAR 13: failed to assign [io size 0x1000] [Mon Nov 28 15:46:33 2022] pcieport 0000:40:01.1: BAR 13: no space for [io size 0x1000] [Mon Nov 28 15:46:33 2022] pcieport 0000:40:01.1: BAR 13: failed to assign [io size 0x1000] Kernel Version: 5.4.0-107-generic #121~18.04.1-Ubuntu SMP Thu Mar 24 17:21:33 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux hardware information: tried with micron and intel NVME, e.g: INTEL SSDPE2KE016T8 after a reboot, the NVME is recognized, so there is no hardware problem. if you need additional debug information, feel free to ask. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1998224/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
