From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f65.google.com (mail-wm0-f65.google.com [74.125.82.65]) by mail.openembedded.org (Postfix) with ESMTP id 0261A6086F for ; Sat, 3 Mar 2018 11:13:20 +0000 (UTC) Received: by mail-wm0-f65.google.com with SMTP id t3so7552027wmc.2 for ; Sat, 03 Mar 2018 03:13:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:from:to:references:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=zP2RHD4SSIQn6ryXtsA3vmaR+I+mtpHqFphNj9vno48=; b=GRqbu81mm1TKYwyzoiVL2/RHbYf1Ud1/QHvui9C7/xH9CJLyMTfCUUvOKixT8Z0T25 HCPrjaw3Fn6wOrE0WojbmbC1zNor3FrOacxLU2Gge6+ybthmZbZggf9SKsn+wnoq3EvN B4xv/iJ7MGol/FhbywzGHj1JqAa6jfzqzokwblfeEaDMDWJrA7ZjILT55li9YvL0MGqY 9JY+md+QZD/2vg/ty7zhq86RkJKTjH45hFJNticeQLLBlxbvUhMKxrLJIakrMx3Xvz7D yh/LoE950j9bL4D5Rxt66saKz72PvuANZGzq5j36m6EfEE7mjSE0bcTKh/I9w0fAyACY r6mQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:from:to:references:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=zP2RHD4SSIQn6ryXtsA3vmaR+I+mtpHqFphNj9vno48=; b=OkmnQ2vbn0cQK7fD3pJalW5Fv6kfs6z5Um6guQIoAd9ts8Dmpv777ktQxFVkOx3moZ viidEFrdVTVIMN+HIxw8eZmNrt359iV5A0SxaZDhKVqv9sWls8aN5Fr/WJ4Lm3mhCxfP 0uljJw5tW+2uHrd5+C4WYIkSrTxoRHourmWfezikeZJIuu9Fz9u3IIqpefVfsejRKkxE 1g71JHs5zLn1JgFyV710zuUmTal11vbeiHiNGFCKlFpbj8firleqzmT20Z2OW18tWTK1 5x2C5AmRcw0rE6HdKTxQMxF244Gd1xo701ueu0k6UCKSgebMCv6/VEX3IA+wyiDS0by7 Hi/w== X-Gm-Message-State: AElRT7Ea5gttlQ+tXUn7a8VHh6Xch3jh7H7pa8iruDs3hX5N3OcRqQgG okMAfohH5F/E3rJFaX25mjCU7tht X-Google-Smtp-Source: AG47ELu1+vAeKn3V8/kZsRXw3y026d5qCf0YT303KxTQI9dCGka1Jw2lYBPiX9TlPe2eC6orPXEuOw== X-Received: by 10.28.139.19 with SMTP id n19mr3962144wmd.40.1520075601399; Sat, 03 Mar 2018 03:13:21 -0800 (PST) Received: from [192.168.19.11] ([2.28.103.57]) by smtp.googlemail.com with ESMTPSA id m15sm7790675wrb.58.2018.03.03.03.13.20 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 03 Mar 2018 03:13:20 -0800 (PST) From: Ian Arkver To: Richard Purdie , openembedded-core References: <1520067650.3436.41.camel@linuxfoundation.org> <91616f15-f805-22db-6073-8698f49bab86@gmail.com> Message-ID: <412d4c49-8956-38aa-a1ea-417541585b2d@gmail.com> Date: Sat, 3 Mar 2018 11:13:19 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 In-Reply-To: <91616f15-f805-22db-6073-8698f49bab86@gmail.com> Subject: Re: Need arm64/qemu help X-BeenThere: openembedded-core@lists.openembedded.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Patches and discussions about the oe-core layer List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 03 Mar 2018 11:13:21 -0000 Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-GB Content-Transfer-Encoding: 8bit On 03/03/18 10:51, Ian Arkver wrote: > On 03/03/18 09:00, Richard Purdie wrote: >> Hi, >> >> I need some help with a problem we keep seeing: >> >> https://autobuilder.yocto.io/builders/nightly-arm64/builds/798 >> >> Basically, now and again, for reasons we don't understand, all the >> sanity tests fail for qemuarm64. >> >> I've poked at this a bit and if I go in onto the failed machine and run >> this again, they work, using the same image, kernel and qemu binaries. >> We've seen this on two different autobuilder infrastructure on varying >> host OSs. They always seem to fail all three at once. >> >> Whilst this was a mut build, I saw this repeat three builds in a row on >> the new autobuilder we're setting up with master. >> >> The kernels always seem to hang somewhere around the: >> >> | [    0.766079] raid6: int64x1  xor()   302 MB/s >> | [    0.844597] raid6: int64x2  gen()   675 MB/s > > I believe this is related to btrfs and comes from having btrfs compiled > in to the kernel. You could maybe side-step the problem (and hence leave > it lurking) by changing btrfs to a module. Actually, this comes from a library (lib/raid6), and in 4.14.y's arm64 defconfig BTRFS is already a module, so please disregard my hack suggestion. > Regards, > Ian > >> raid timing measurements. >> >> In the past we've dived in and handled these kinds of things but I've >> run out of people to lean on and I need help from the wider community. >> >> Can anyone help look into and fix this? >> >> This is serious as if nobody cares, I'll have to simply stop boot >> testing qemuarm64. >> >> Not sure if there is an open bug yet either :/. >> >> Cheers, >> >> Richard >>