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AJvYcCUK7P4OeEZUS0LAa+WRKoRgporYeX3ZculS28q92c0Ztm8OGZQbU/XTWtKzSRbZRqjAridxmOM=@vger.kernel.org X-Gm-Message-State: AOJu0YyCGBQmdkqAP8rf9bed/v6/Nh6o+kfgMXvnCL/jimaAkg940vtM zZd4yOSyPhx+c2Ix77yexh8yObact1mKsCd2do7mAKdyTck7kxnALFNCfZZOBD0= X-Google-Smtp-Source: AGHT+IHr3t4octArrJkwK4KlggdiRYNEixY4E7CvOHzMJxxuBtEfGjyLTrjjT9DROP00qxEU234jog== X-Received: by 2002:a05:6a00:2392:b0:718:e49f:246e with SMTP id d2e1a72fcca58-71b260a8a3fmr8397735b3a.6.1727722818090; Mon, 30 Sep 2024 12:00:18 -0700 (PDT) Received: from telecaster.dhcp.thefacebook.com ([2620:10d:c090:500::6:e49b]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-71b2652a622sm6544654b3a.164.2024.09.30.12.00.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Sep 2024 12:00:17 -0700 (PDT) Date: Mon, 30 Sep 2024 12:00:13 -0700 From: Omar Sandoval To: David Howells Cc: Eduard Zingerman , Leon Romanovsky , Christian Brauner , Manu Bretelle , asmadeus@codewreck.org, ceph-devel@vger.kernel.org, christian@brauner.io, ericvh@kernel.org, hsiangkao@linux.alibaba.com, idryomov@gmail.com, jlayton@kernel.org, linux-afs@lists.infradead.org, linux-cifs@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-nfs@vger.kernel.org, marc.dionne@auristor.com, netdev@vger.kernel.org, netfs@lists.linux.dev, pc@manguebit.com, smfrench@gmail.com, sprasad@microsoft.com, tom@talpey.com, v9fs@lists.linux.dev, willy@infradead.org Subject: Re: [PATCH v2 19/25] netfs: Speed up buffered reading Message-ID: References: <423fbd9101dab18ba772f24db4ab2fecf5de2261.camel@gmail.com> <2968940.1727700270@warthog.procyon.org.uk> <20240925103118.GE967758@unreal> <20240923183432.1876750-1-chantr4@gmail.com> <20240814203850.2240469-20-dhowells@redhat.com> <1279816.1727220013@warthog.procyon.org.uk> <4b5621958a758da830c1cf09c6f6893aed371f9d.camel@gmail.com> <2969660.1727700717@warthog.procyon.org.uk> <3007428.1727721302@warthog.procyon.org.uk> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3007428.1727721302@warthog.procyon.org.uk> On Mon, Sep 30, 2024 at 07:35:02PM +0100, David Howells wrote: > Eduard Zingerman wrote: > > > Are there any hacks possible to printout tracelog before complete boot > > somehow? > > You could try setting CONFIG_NETFS_DEBUG=y. That'll print some stuff to > dmesg. > > David I hit this in drgn's VM test setup, too, and just sent a patch that fixed it for me and Manu: https://lore.kernel.org/linux-fsdevel/cbaf141ba6c0e2e209717d02746584072844841a.1727722269.git.osandov@fb.com/ Thanks, Omar