From owner-freebsd-hackers@freebsd.org Sat Jan 23 21:17:39 2016 Return-Path: Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 6EA3FA8EE1D for ; Sat, 23 Jan 2016 21:17:39 +0000 (UTC) (envelope-from radovanovic@gmail.com) Received: from mail-wm0-x22b.google.com (mail-wm0-x22b.google.com [IPv6:2a00:1450:400c:c09::22b]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 04ACE1B2B for ; Sat, 23 Jan 2016 21:17:39 +0000 (UTC) (envelope-from radovanovic@gmail.com) Received: by mail-wm0-x22b.google.com with SMTP id u188so23596641wmu.1 for ; Sat, 23 Jan 2016 13:17:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=to:from:subject:message-id:date:user-agent:mime-version :content-type:content-transfer-encoding; bh=hhOzuswoSLH1UwxyQkIcP5HYO4VG3fHDeKrpT7uJQZY=; b=fm/PEwt7BgsN+R9YAHzr3Jk0gmguZsvPVswU6JOsee9LpqBIRDf2LoUDEH+dXcdEqD l+wG5DScd51jK24UZXcCLchpx5IWhl0vRRmefkvtitlvE30S05zLUr4pGXQeKbXLp5l5 44ZmmBF+b75b/T/LDRKIwyi5wPuWQ2wBM4PSaiiP6guWvg3yI+j18I57vlHtld6f6hu7 9MXfQZKL8G3u2ukk5oMLqLzMpZrfDyfFX5jv87WFgDHdSuEJ3Bh/OCZyysAlB3LetM/L denR6enmNSz5kJ4fZ4Twg6h+6jWlYP0oUWVnsUUiOa8+YtLFgNFXYNVZsTiI2aDrXfgT SYYw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:to:from:subject:message-id:date:user-agent :mime-version:content-type:content-transfer-encoding; bh=hhOzuswoSLH1UwxyQkIcP5HYO4VG3fHDeKrpT7uJQZY=; b=mu2dqr8j5gkZlqJxmJZ1huZGPpd8brjAVX6dSBLnVQ/z0DKfyo718pEY0Z4/P5TT6V BnTcXuGwtyPF/H7DLz8eHvr+StGku1Ux2nUT/pR1jrs+6NmGzsligPyqd8Y5CkAv8qNY MiPH5SLQvJPkvn+SKKthrCIv8TWf9j3dfYoEemSNPIojFDnmsbjwIemrI1R9DJ//IdI3 yvCq6d18R2y7PRSN+Tkm9mVzYVayHwkYAvg/j/T+UkWq5izm/yskcdgAUZjP2NoBeauH cMUww9G2D0xpEoN0WpnOTGDMen0UxRes+M2CroT50gzZAel/Q/wCTvNTHm8IGs4zsb/J uJxg== X-Gm-Message-State: AG10YOSJKbCpXHbgM/BkoBWiccAxEPTbamxnzjfLP781Gw2jt2USvaNAeOK6+BFm5AiHFg== X-Received: by 10.194.22.101 with SMTP id c5mr11040120wjf.151.1453583856368; Sat, 23 Jan 2016 13:17:36 -0800 (PST) Received: from azdaja.softwarehood.com ([46.240.236.6]) by smtp.gmail.com with ESMTPSA id ct2sm11816743wjb.46.2016.01.23.13.17.35 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 23 Jan 2016 13:17:35 -0800 (PST) To: freebsd-hackers@FreeBSD.org From: Ivan Radovanovic Subject: Unexpected (at least to me) kevent behavior on window size change when in X Message-ID: <56A3EDEE.1030400@gmail.com> Date: Sat, 23 Jan 2016 22:17:34 +0100 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 23 Jan 2016 21:17:39 -0000 Hi everybody, I am using kevent(2) to monitor for file changes and I just noticed some weird behavior - if program is running within X (in MATE terminal), and if it is already blocked on kevent when I change window size kevent returns -1 and sets errno to 0. I am not monitoring anything weird - only normal file descriptors (of regular files). This is happening on 10.2-STABLE r291381 The only thing which is out of ordinary is that I am doing this from mono, but still I am directly invoking libc functions from it, so I don't think it can have anything with it. Kind regards, Ivan