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SOLVED ! nvme0: missing or invalid SUBNQN field
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CooSee
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PostPosted: Sun Jan 05, 2020 12:36 am    Post subject: SOLVED ! nvme0: missing or invalid SUBNQN field Reply with quote

never saw this message before
using current 5.4.7 kernel and everthing's working great, no fs error or freeze, etc.
both m.2 are new hardware - fresh install.
is this a false positive

Code:
    3.473491] nvme nvme0: pci function 0000:03:00.0
[    3.474108] nvme nvme1: pci function 0000:04:00.0
[    3.681409] nvme nvme0: missing or invalid SUBNQN field.
[    3.681893] nvme nvme1: missing or invalid SUBNQN field.
[    3.681980] nvme nvme0: Shutdown timeout set to 10 seconds
[    3.682525] nvme nvme1: Shutdown timeout set to 8 seconds
[    3.683681] nvme nvme0: 8/0/0 default/read/poll queues
[    3.684461] nvme nvme0: ctrl returned bogus length: 16 for NVME_NIDT_EUI64
[    3.685143] nvme nvme0: ctrl returned bogus length: 16 for NVME_NIDT_EUI64
[    3.687034]  nvme0n1: p1 p2 p3 p4
[    3.695759] nvme nvme1: 8/0/0 default/read/poll queues
[    3.705074]  nvme1n1: p1 p2 p3 p4
[    4.116109] XFS (nvme0n1p2): Mounting V5 Filesystem
[    4.121376] XFS (nvme0n1p2): Ending clean mount
[    5.350454] LoadPin: nvme0n1p2 (259:2): writable
[    6.689293] Adding 1048572k swap on /dev/nvme1n1p2.  Priority:-2 extents:1 across:1048572k SSFS
[    6.811809] XFS (nvme0n1p3): Mounting V5 Filesystem
[    6.819241] XFS (nvme0n1p3): Ending clean mount


tried boot/kernel options:

Code:
nvme_core.default_ps_max_latency_us=200
nvme_core.default_ps_max_latency_us=0


didn't work.

thx
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Last edited by CooSee on Sun Jan 05, 2020 10:06 am; edited 1 time in total
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mike155
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PostPosted: Sun Jan 05, 2020 1:39 am    Post subject: Reply with quote

Code:
# dmesg | grep SUBNQN
[    0.801824] nvme nvme0: missing or invalid SUBNQN field.
[    0.801844] nvme nvme1: missing or invalid SUBNQN field.

I get this message on all machines that have NVMe SSDs (Samsung SSD 970 EVO Plus). I've never had problems with my NVMe SSDs and I decided to ignore this message.
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grumblebear
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PostPosted: Sun Jan 05, 2020 2:40 am    Post subject: Reply with quote

I think, this is just a kernel warning without any negative impact on your drive's performance. It simply means the drive has a crappy firmware violating the NVME specs.
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Ionen
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Joined: 06 Dec 2018
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PostPosted: Sun Jan 05, 2020 2:58 am    Post subject: Reply with quote

I don't have that message but out of curiosity had a look at the kernel and it has a dedicated quirk for it NVME_QUIRK_IGNORE_DEV_SUBNQN which (if set) will just ignore it instead of throw a scary warning. Either way (quirk or warning), it then generate a "fake" subnqn that seem to do the same job save for being generic:
Code:
        /* Generate a "fake" NQN per Figure 254 in NVMe 1.3 + ECN 001 */
        off = snprintf(subsys->subnqn, NVMF_NQN_SIZE,
                        "nqn.2014.08.org.nvmexpress:%04x%04x",
                        le16_to_cpu(id->vid), le16_to_cpu(id->ssvid));
Warning just means those aren't registered to need that quirk yet (in drivers/nvme/host/pci.c), eventually it may just go away when the list gets updated, end result will be the same. In other words, drives are fine :)
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CooSee
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PostPosted: Sun Jan 05, 2020 10:05 am    Post subject: Reply with quote

thanks to all of you, for your input.

the new m.2's are really fast and the complete reinstall on my new AORUS PCI-E M.2 just took 1 hour :)

ok, but only with all the usepkg=yes option from old system.

thx again
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