From: Jakub Kicinski <kuba@kernel.org>
To: Aditya Garg <gargaditya@linux.microsoft.com>
Cc: kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org,
decui@microsoft.com, longli@microsoft.com, andrew+netdev@lunn.ch,
davem@davemloft.net, edumazet@google.com, pabeni@redhat.com,
kotaranov@microsoft.com, horms@kernel.org,
ssengar@linux.microsoft.com, jacob.e.keller@intel.com,
dipayanroy@linux.microsoft.com, ernis@linux.microsoft.com,
shirazsaleem@microsoft.com, kees@kernel.org, sbhatta@marvell.com,
leitao@debian.org, netdev@vger.kernel.org,
linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-rdma@vger.kernel.org, bpf@vger.kernel.org,
gargaditya@microsoft.com
Subject: Re: [PATCH net-next 0/2] net: mana: Avoid queue struct allocation failure under memory fragmentation
Date: Thu, 16 Apr 2026 19:08:37 -0700 [thread overview]
Message-ID: <20260416190837.6b060bbe@kernel.org> (raw)
In-Reply-To: <20260414151456.687506-1-gargaditya@linux.microsoft.com>
On Tue, 14 Apr 2026 08:13:28 -0700 Aditya Garg wrote:
> The MANA driver can fail to load on systems with high memory
> utilization because several allocations in the queue setup paths
> require large physically contiguous blocks via kmalloc. Under memory
> fragmentation these high-order allocations may fail, preventing the
> driver from creating queues at probe time or when reconfiguring
> channels, ring parameters or MTU at runtime.
## Form letter - net-next-closed
We have already submitted our pull request with net-next material for v7.1,
and therefore net-next is closed for new drivers, features, code refactoring
and optimizations. We are currently accepting bug fixes only.
Please repost when net-next reopens after Apr 27th.
RFC patches sent for review only are obviously welcome at any time.
See: https://www.kernel.org/doc/html/next/process/maintainer-netdev.html#development-cycle
--
pw-bot: defer
pv-bot: closed
prev parent reply other threads:[~2026-04-17 2:08 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-14 15:13 [PATCH net-next 0/2] net: mana: Avoid queue struct allocation failure under memory fragmentation Aditya Garg
2026-04-14 15:13 ` [PATCH net-next 1/2] net: mana: Use per-queue allocation for tx_qp to reduce allocation size Aditya Garg
2026-04-14 15:13 ` [PATCH net-next 2/2] net: mana: Use kvmalloc for large RX queue and buffer allocations Aditya Garg
2026-04-17 2:08 ` Jakub Kicinski [this message]
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