From: Greg KH <gregkh@linuxfoundation.org>
To: Suraj Jitindar Singh <surajjs@amazon.com>
Cc: stable@vger.kernel.org, trawets@amazon.com, security@kernel.org,
Peter Oskolkov <posk@google.com>,
"David S . Miller" <davem@davemloft.net>
Subject: Re: [PATCH stable 4.19.x 1/4] net: add a route cache full diagnostic message
Date: Sat, 13 Jan 2024 10:19:58 +0100 [thread overview]
Message-ID: <2024011350-hence-maternal-70b9@gregkh> (raw)
In-Reply-To: <20240113005308.2422331-1-surajjs@amazon.com>
On Fri, Jan 12, 2024 at 04:53:05PM -0800, Suraj Jitindar Singh wrote:
> From: Peter Oskolkov <posk@google.com>
>
> commit 22c2ad616b74f3de2256b242572ab449d031d941 upstream.
>
> In some testing scenarios, dst/route cache can fill up so quickly
> that even an explicit GC call occasionally fails to clean it up. This leads
> to sporadically failing calls to dst_alloc and "network unreachable" errors
> to the user, which is confusing.
>
> This patch adds a diagnostic message to make the cause of the failure
> easier to determine.
>
> Signed-off-by: Peter Oskolkov <posk@google.com>
> Signed-off-by: David S. Miller <davem@davemloft.net>
> Signed-off-by: Suraj Jitindar Singh <surajjs@amazon.com>
> Cc: <stable@vger.kernel.org> # 4.19.x
> ---
> net/core/dst.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
All now queued up, thanks.
greg k-h
prev parent reply other threads:[~2024-01-13 9:20 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <2024011155-gruffly-chunk-e186@gregkh>
2024-01-13 0:42 ` [PATCH stable 5.4.x 1/3] net/dst: use a smaller percpu_counter batch for dst entries accounting Suraj Jitindar Singh
2024-01-13 0:42 ` [PATCH stable 5.4.x 2/3] ipv6: make ip6_rt_gc_expire an atomic_t Suraj Jitindar Singh
2024-01-13 0:42 ` [PATCH stable 5.4.x 3/3] ipv6: remove max_size check inline with ipv4 Suraj Jitindar Singh
2024-01-13 0:53 ` [PATCH stable 4.19.x 1/4] net: add a route cache full diagnostic message Suraj Jitindar Singh
2024-01-13 0:53 ` [PATCH stable 4.19.x 2/4] net/dst: use a smaller percpu_counter batch for dst entries accounting Suraj Jitindar Singh
2024-01-13 0:53 ` [PATCH stable 4.19.x 3/4] ipv6: make ip6_rt_gc_expire an atomic_t Suraj Jitindar Singh
2024-01-13 0:53 ` [PATCH stable 4.19.x 4/4] ipv6: remove max_size check inline with ipv4 Suraj Jitindar Singh
2024-01-13 9:19 ` Greg KH [this message]
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