Bug 199741

Summary: ioremap error on Dell XPS 9370
Product: Memory Management Reporter: Martin Jørgensen (mkj)
Component: OtherAssignee: Andrew Morton (akpm)
Status: RESOLVED OBSOLETE    
Severity: normal CC: ozancag, pmenzel+bugzilla.kernel.org
Priority: P1    
Hardware: Intel   
OS: Linux   
Kernel Version: 4.16.5 Subsystem:
Regression: No Bisected commit-id:
Attachments: full dmesg

Description Martin Jørgensen 2018-05-16 15:51:46 UTC
Created attachment 276005 [details]
full dmesg

My dmesg show's the error:

[    3.971632] ioremap error for 0x3f781000-0x3f782000, requested 0x2, got 0x0

... after a fresh reboot. The error is printet in between WMI and UVC camera modules are loaded, but my laptop seem to operate normal despite the error.

The other errors in the attached dmesg log are reported in other bugs.

I'm running up-to-date Debian buster/sid on a Dell XPS 9370 laptop.
Comment 1 Martin Jørgensen 2018-05-17 03:55:59 UTC
the bug seems to be related to: https://lkml.org/lkml/2018/5/16/665 as Paul Menzel wrote:

>>>> The ioremap error is what causes ucsi_acpi to fail the probe call (-12
>>>> is "out of memory".)
Comment 2 Martin Jørgensen 2020-07-06 13:36:17 UTC
not using the laptop anymore. error did not seem to break my everyday workflow.
Comment 3 Paul Menzel 2022-03-18 12:49:54 UTC
It seems to be from ucsi_acpi:

    [    3.971632] ioremap error for 0x3f781000-0x3f782000, requested 0x2, got 0x0
    [    3.971670] ucsi_acpi: probe of USBC000:00 failed with error -12

The Dell Precision 3540 has the same issue, and I contacted the developers [1].

[1]: https://lore.kernel.org/linux-usb/b9b00e0e-9182-783d-ae30-d67d778ae060@molgen.mpg.de/T/#u
Comment 4 Ozan Caglayan 2022-06-17 08:10:21 UTC
Hi Paul,

I've tested your patch in the above thread and I confirm that the message disappears on 5.18.3 + your patch.