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Date:   Mon, 10 Oct 2022 13:25:25 -0600
From:   "Jason A. Donenfeld" <Jason@zx2c4.com>
To:     Michael Ellerman <mpe@ellerman.id.au>
Cc:     Linus Torvalds <torvalds@linux-foundation.org>, ajd@linux.ibm.com,
        aneesh.kumar@linux.ibm.com, atrajeev@linux.vnet.ibm.com,
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Subject: Re: [GIT PULL] Please pull powerpc/linux.git powerpc-6.1-1 tag
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Hi Michael,

On Sun, Oct 09, 2022 at 10:01:39PM +1100, Michael Ellerman wrote:
> powerpc updates for 6.1
> 
>  - Remove our now never-true definitions for pgd_huge() and p4d_leaf().
> 
>  - Add pte_needs_flush() and huge_pmd_needs_flush() for 64-bit.
> 
>  - Add support for syscall wrappers.
> 
>  - Add support for KFENCE on 64-bit.
> 
>  - Update 64-bit HV KVM to use the new guest state entry/exit accounting API.
> 
>  - Support execute-only memory when using the Radix MMU (P9 or later).
> 
>  - Implement CONFIG_PARAVIRT_TIME_ACCOUNTING for pseries guests.
> 
>  - Updates to our linker script to move more data into read-only sections.
> 
>  - Allow the VDSO to be randomised on 32-bit.
> 
>  - Many other small features and fixes.

FYI, something in here broke the wireguard test suite, which runs the
iperf3 networking utility. The full log is here [1], but the relevant part
is: 

[+] NS1: iperf3 -Z -t 3 -c 192.168.241.2
Connecting to host 192.168.241.2, port 5201
iperf3: error - failed to read /dev/urandom: Bad address

I'll see if I can narrow it down a bit more and bisect. But just FYI, in
case you have an intuition.

Jason


[1] https://build.wireguard.com/linux/4de65c5830233e7a4adf2e679510089ec4e210c7/powerpc.log