The above comment might not be correct, because it turned out one of the
micron nvme devices had a defect and was not recognized by any hardware
at all, even when not hot swapping.
There is a chance that this is related to the bios/firmware combination
on this supermicro model.
I will test this again with a known working micron nvme and the
following scenarios:
- hotswap intel -> micron
- hotswap micron -> micron
both will first be tested on the linux-generic-hwe-18.04
5.4.0.135.152~18 kernel.
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
--
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 5.4.0.135.152~18
Status in linux package in Ubuntu:
Incomplete
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 : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
