From: Fuad Tabba <fuad.tabba@linux.dev>
To: Itaru Kitayama <itaru.kitayama@linux.dev>
Cc: kvmarm@lists.linux.dev, Fuad Tabba <tabba@google.com>
Subject: Re: kselftest kvm/arm/page_fault_test hangs if pagesize is 16KB
Date: Fri, 2 Oct 2026 08:17:01 +0100 [thread overview]
Message-ID: <20261002071701.2671016-1-fuad.tabba@linux.dev> (raw)
In-Reply-To: <B4C0AC3E-6A4F-4A7B-B7BC-81207539115E@linux.dev>
Hi Itaru,
On Fri, 27 Jun 2025 07:34:57 +0100, Itaru Kitayama <itaru.kitayama@linux.dev> wrote:
[...]
> I checked testing with the 4KB and 64KB page sizes, page_fault_test runs fine.
I hit the same hang. It's a QEMU bug: with a 52-bit PA, the stage 1
walk computes the wrong base address for an initial table smaller than
64 bytes, such as the 16KB mode's level 0. I've posted a fix [1].
Cheers,
/fuad
[1] https://lore.kernel.org/all/20261001175003.ttbr-baddr-52bit-0-fuad.tabba@linux.dev/
prev parent reply other threads:[~2026-10-02 7:17 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-27 6:34 kselftest kvm/arm/page_fault_test hangs if pagesize is 16KB Itaru Kitayama
2026-10-02 7:17 ` Fuad Tabba [this message]
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