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Message-ID: <bbdce803-0f23-7d3f-f75a-2bc3cfb794af@gmail.com>
Date: Sun, 23 Jul 2023 09:35:56 +0300
From: Tariq Toukan <ttoukan.linux@...il.com>
To: Jakub Kicinski <kuba@...nel.org>,
David Howells <dhowells@...hat.com>
Cc: netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Paolo Abeni <pabeni@...hat.com>,
Willem de Bruijn <willemdebruijn.kernel@...il.com>,
David Ahern <dsahern@...nel.org>,
Matthew Wilcox <willy@...radead.org>,
Al Viro <viro@...iv.linux.org.uk>,
Christoph Hellwig <hch@...radead.org>,
Jens Axboe <axboe@...nel.dk>, Jeff Layton <jlayton@...nel.org>,
Christian Brauner <brauner@...nel.org>,
Chuck Lever III <chuck.lever@...cle.com>,
Linus Torvalds <torvalds@...ux-foundation.org>,
linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-mm@...ck.org, Boris Pismenny <borisp@...dia.com>,
John Fastabend <john.fastabend@...il.com>,
Gal Pressman <gal@...dia.com>, ranro@...dia.com,
samiram@...dia.com, drort@...dia.com,
Tariq Toukan <tariqt@...dia.com>
Subject: Re: [PATCH net-next v10 08/16] tls: Inline do_tcp_sendpages()
On 05/07/2023 19:19, Jakub Kicinski wrote:
> On Tue, 4 Jul 2023 23:06:02 +0300 Tariq Toukan wrote:
>> Unfortunately, it still repros for us.
>>
>> We are collecting more info on how the repro is affected by the
>> different parameters.
>
> Consider configuring kdump for your test env. Debugging is super easy
> if one has the vmcore available.
Hi Jakub, David,
We repro the issue on the server side using this client command:
$ wrk -b2.2.2.2 -t4 -c1000 -d5 --timeout 5s
https://2.2.2.3:20443/256000b.img
Port 20443 is configured with:
ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256;
sendfile off;
Important:
1. Couldn't repro with files smaller than 40KB.
2. Couldn't repro with "sendfile on;"
In addition, we collected the vmcore (forced by panic_on_warn), it can
be downloaded from here:
https://drive.google.com/file/d/1Fi2dzgq6k2hb2L_kwyntRjfLF6_RmbxB/view?usp=sharing
Regards,
Tariq
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