I am seeing a warning while booting linux 4.14.2 [ 43.438583] resource sanity check: requesting [mem 0x000a0000-0x000fffff], which spans more than PCI Bus 0000:00 [mem 0x000a0000-0x000bffff window] [ 43.438698] caller _nv001193rm+0x166/0x1c0 [nvidia] mapping multiple BARs [ 43.802318] nvidia-…

They just changed the message in newer kernels. It has probably always been there due to a buggy bios. The previous message was Info: mapping multiple BARs. Your kernel is fine.

Motherboard BIOS. You may disregard these messages - they are harmless.

I did journalctl | grep BARs. The journal goes back to june. There was no mention of the term ‘BARs’ in the journal till now.

I can confirm this message just occured with kernel 4.14.x, never had this with older versions. According to this: https://lwn.net/Articles/300667/ (patch) ioremap sanity check to catch mapping requests exceeding the BAR sizes Go through the iomem resource tree to check if any of the ioremap() re…

I’m a bit puzzled why this message is displayed just now for some people. The change of the message was already in kernel 4.8. Since then not much has changed in regard to ioremap. Just some changes in the e820 code. Can this cause corruption? Possibly but unlikely and if so, you can’t do anything …

Is this fixed in 390.12? I’m on 4.9.76 at the moment before the warning started (in 4.14.xx).

No, is not fixed in 390.12. [Fr Jan 12 10:01:02 2018] resource sanity check: requesting [mem 0x000c0000-0x000fffff], which spans more than PCI Bus 0000:00 [mem 0x000d0000-0x000d3fff window] [Fr Jan 12 10:01:02 2018] caller _nv001171rm+0xe3/0x1d0 [nvidia] mapping multiple BARs [Fr Jan 12 10:01:02 20…

I’m not seeing this message anymore on Linux kernel 4.14.16 and nvidia driver 390.25 which I verified by doing “dmesg | grep BAR”.

Hi Guys Problem still present with 4.17.4 / 340.107 NVIDIA Corporation GT218 [GeForce 210] (rev a2) If there is a patch. [ 9.427688] resource sanity check: requesting [mem 0x000c0000-0x000fffff], which spans more than PCI Bus 0000:00 [mem 0x000d0000-0x000d3fff window ] [ 9.427781] caller…

NVIDIA related warning on booting linux 4.14

Graphics / Linux Linux

aplattner December 5, 2017, 5:55pm 8

I filed bug 2017354 about this. From the investigation, I’m pretty sure this message is harmless but we’re fixing it for a future driver release nonetheless.

Topic		Replies	Views
NVRM: This PCI I/O region assigned to your NVIDIA device is invalid Linux	38	18782	April 18, 2021
PLX/PCI Error. MultiGPU. BAR: failed to assign Linux	6	8225	April 26, 2021
Ubuntu tesla P40 NVRM: GPU 0000:03:00.0: RmInitAdapter Drivers - Linux, Windows, MacOS kernel , nvbugs	4	1578	March 31, 2023
Pascal Titan X's GPU's falling off the bus Linux	0	935	December 29, 2016
RmInitAdapter failed! since kernel > 6.4 Linux kernel	31	6623	July 17, 2025
Ubuntu 21.10 with GeForce 1650: nvidia-drm fails to allocate NvKmsKapiDevice, and fails to register device Linux	13	15226	February 3, 2023
Nvidia no devices were found on Ubuntu 20.04.2 LTS (GL552VW) Linux ubuntu	1	2654	March 2, 2023
375.10 - bad experience Linux	9	4453	November 29, 2016
NVIDIA Linux Drivers 470.74 Linux	15	3950	October 5, 2021
Nvidia-driver doesn't seem to recognize the second GPU Linux ubuntu	14	5195	April 20, 2021

NVIDIA related warning on booting linux 4.14

Related topics