Re: vm_area at addr ffffffffc0800000 is not marked as VM_IOREMAP

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Subject: Re: vm_area at addr ffffffffc0800000 is not marked as VM_IOREMAP
From: Miguel Ojeda <miguel.ojeda.sandonis@xxxxxxxxx>
Date: Fri, 8 Mar 2024 12:23:31 +0100
Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, linux-mm <linux-mm@xxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Catalin Marinas <catalin.marinas@xxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Linux ARM <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>, Daniel Borkmann <daniel@xxxxxxxxxxxxx>, bpf <bpf@xxxxxxxxxxxxxxx>, Bjorn Helgaas <bhelgaas@xxxxxxxxxx>, linux-pci@xxxxxxxxxxxxxxx
In-reply-to: <CAADnVQLP=dxBb+RiMGXoaCEuRrbK387J6B+pfzWKF_F=aRgCPQ@mail.gmail.com>
References: <CANiq72ka4rir+RTN2FQoT=Vvprp_Ao-CvoYEkSNqtSY+RZj+AA@mail.gmail.com> <CAADnVQL1Zt5dwFv9HPDKDuPEKa6V7gb5j-D-LPWv47hC6mtwgw@mail.gmail.com> <CAADnVQLP=dxBb+RiMGXoaCEuRrbK387J6B+pfzWKF_F=aRgCPQ@mail.gmail.com>

On Fri, Mar 8, 2024 at 4:49 AM Alexei Starovoitov
<alexei.starovoitov@xxxxxxxxx> wrote:
>
> Ok. I think I figured it out.
> Please try the attached patch.

On top of today's next-20240308 for both arm64 and x86_64 under QEMU:

Tested-by: Miguel Ojeda <ojeda@xxxxxxxxxx>

Thanks!

Cheers,
Miguel

References:
- vm_area at addr ffffffffc0800000 is not marked as VM_IOREMAP
  - From: Miguel Ojeda
- Re: vm_area at addr ffffffffc0800000 is not marked as VM_IOREMAP
  - From: Alexei Starovoitov
- Re: vm_area at addr ffffffffc0800000 is not marked as VM_IOREMAP
  - From: Alexei Starovoitov

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