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Miller" , Greg Kroah-Hartman , Nick Desaulniers , Nathan Chancellor , Daniel Borkmann , Alexei Starovoitov , Eric Dumazet Subject: RE: ipv4/tcp.c:4234:1: error: the frame size of 1152 bytes is larger than 1024 bytes [-Werror=frame-larger-than=] Thread-Topic: ipv4/tcp.c:4234:1: error: the frame size of 1152 bytes is larger than 1024 bytes [-Werror=frame-larger-than=] Thread-Index: AQHXpJjLHdBfxh/omUuYsxLT8U4Q1auaODzA Date: Wed, 8 Sep 2021 14:51:21 +0000 Message-ID: <46be667d057f413aac7871ebe784e274@AcuMS.aculab.com> References: <20210908100304.oknxj4v436sbg3nb@liuwe-devbox-debian-v2> In-Reply-To: <20210908100304.oknxj4v436sbg3nb@liuwe-devbox-debian-v2> Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Wei Liu > Sent: 08 September 2021 11:03 ... > However calling into the allocator from that IPI path seems very heavy > weight. I will discuss with fellow engineers on how to fix it properly. Isn't the IPI code something that is likely to get called when a lot of stack has already been used? So you really shouldn't be using much stack at all?? David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)