From: "Daniel P. Berrangé" <berrange@redhat.com>
To: Markus Armbruster <armbru@redhat.com>
Cc: qemu-devel@nongnu.org, david@kernel.org, imammedo@redhat.com,
peter.maydell@linaro.org
Subject: Re: [PATCH 6/7] util/memfd: Improve error message when memfd_create() fails
Date: Wed, 11 Nov 2026 12:56:04 +0000 [thread overview]
Message-ID: <avRl5EF-lHrZ9633@redhat.com> (raw)
In-Reply-To: <20261111122342.634370-7-armbru@redhat.com>
On Wed, Nov 11, 2026 at 01:23:41PM +0100, Markus Armbruster wrote:
> qemu_memfd_create() reports something like
>
> failed to create memfd with flags 0x3: Invalid argument
>
> when memfd_create() fails. To make sense of this, you have to
> understand what flags are, and how to decode them.
>
> qemu_memfd_create() computes the flags from @seals and @hugetlb, so
> show these instead, like this:
>
> failed to create memfd with sealing and without huge pages: Invalid argument
>
> Signed-off-by: Markus Armbruster <armbru@redhat.com>
> ---
> util/memfd.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
With regards,
Daniel
--
|: https://berrange.com ~~ https://hachyderm.io/@berrange :|
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next prev parent reply other threads:[~2026-11-11 12:56 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-11 12:23 [PATCH 0/7] backends/hostmem: Make QOM types and properties unconditional Markus Armbruster
2026-11-11 12:23 ` [PATCH 1/7] backends/hostmem: Drop redundant validation of property "size" Markus Armbruster
2026-11-11 12:45 ` Daniel P. Berrangé
2026-11-12 7:44 ` Markus Armbruster
2026-11-12 8:12 ` Daniel P. Berrangé
2026-11-12 11:49 ` Markus Armbruster
2026-11-11 16:42 ` Mark Cave-Ayland
2026-11-11 12:23 ` [PATCH 2/7] backends/hostmem-file: Drop useless validation of property "mem-path" Markus Armbruster
2026-11-11 12:50 ` Daniel P. Berrangé
2026-11-11 16:48 ` Mark Cave-Ayland
2026-11-11 12:23 ` [PATCH 3/7] backends/hostmem: Improve error reporting when method alloc() fails Markus Armbruster
2026-11-11 12:51 ` Daniel P. Berrangé
2026-11-11 16:49 ` Mark Cave-Ayland
2026-11-11 12:23 ` [PATCH 4/7] backends/hostmem-epc: Register QOM type unconditionally Markus Armbruster
2026-11-11 12:53 ` Daniel P. Berrangé
2026-11-11 16:50 ` Mark Cave-Ayland
2026-11-11 12:23 ` [PATCH 5/7] backends/hostmem-memfd: " Markus Armbruster
2026-11-11 12:54 ` Daniel P. Berrangé
2026-11-11 16:51 ` Mark Cave-Ayland
2026-11-11 12:23 ` [PATCH 6/7] util/memfd: Improve error message when memfd_create() fails Markus Armbruster
2026-11-11 12:56 ` Daniel P. Berrangé [this message]
2026-11-11 16:53 ` Mark Cave-Ayland
2026-11-11 12:23 ` [PATCH 7/7] backends/hostmem-memfd: Add huge TLB properties unconditionally Markus Armbruster
2026-11-11 12:56 ` Daniel P. Berrangé
2026-11-11 16:54 ` Mark Cave-Ayland
2026-11-11 12:36 ` Use of qemu_memfd_check() in system/physmem.c (was: [PATCH 0/7] backends/hostmem: Make QOM types and properties unconditional) Markus Armbruster
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