From owner-freebsd-stable@freebsd.org Tue Mar 30 13:45:14 2021 Return-Path: Delivered-To: freebsd-stable@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id C67C85C5CDC for ; Tue, 30 Mar 2021 13:45:14 +0000 (UTC) (envelope-from markjdb@gmail.com) Received: from mail-qt1-x82a.google.com (mail-qt1-x82a.google.com [IPv6:2607:f8b0:4864:20::82a]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4F8rL24ng1z4k2B; Tue, 30 Mar 2021 13:45:14 +0000 (UTC) (envelope-from markjdb@gmail.com) Received: by mail-qt1-x82a.google.com with SMTP id y12so4784162qtx.11; Tue, 30 Mar 2021 06:45:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=KlmJjl921L/ajyertQOn5eeK+r5u6KVjZU2bkf8Np/s=; b=HZW8/ZQnFIJEDiDKWQTzLZNRrs6Q66wekUt5WmeMCe4pXLTbHC4+qElgcCzqfDU7pR F31vGXRa47pzt2Nf8dUP7Jsj4wTWkPV3EWQbrPe0aV4T+h9y6m6rKYfqFOVt69kwxob3 +2eeoJWCI5QL3rwJ8w1LqAs//k7vGP3vhyBrbAhn2e0RURga71zur88XW0yDKISMS3/c ZQjG5nrUvPN+sl+0BntNa+FsTR4zuQKyDDnQW4eII2QI//PyYiPMcISVA8yf8Osp3IWr e8hghSqd45PgU1IGtpICC/xAmKqssfWnQkpX/EVFYxeRVFhtcF+SgmgpZG32K01X1P9M hXxA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to; bh=KlmJjl921L/ajyertQOn5eeK+r5u6KVjZU2bkf8Np/s=; b=dbM5HFb7KG/D6qH5qvImosX/CMU25bE7yeqcrnRE1RjO1RzxVDf+kd6XYgd9yZbHj8 ckimmJgT+EeoYkdx+C/4FhUIfsZyUge7P9EUkNrKmD4Ga6VH7dWMpaOemVF0pHV15YqY QYhgWo+vXfkNNnLnj1iUm/NJIg2l/qhiA1wnhqkmgoE+51uxxc4iLn1wb4jVG/+B+IFo mda19xH2Ninb9EbQFhNMpnL+QguRB4MZ0RFuOJQZVVnmh0ppkcnlp1ixrz7uKqrmvipr lOCrWHQGSpgGl55B5yiOOfKGVRd9cONTkQR/NKXGaYx0YdboPO77KUkiy7mB9zIGbuYa FGdw== X-Gm-Message-State: AOAM533NI/ZWWAK/q+zAEI6WgtiTKyOX/8Orcdnr8ypqDB534t/Np61L DJLqVlitFs7AmvLXFPNDDGuK/KfZT0y4Pg== X-Google-Smtp-Source: ABdhPJwhwjy1kxAtRVbjKmiPG81ApuzykU9KTDfepNb/FehY2jskpX4wxcgC03GiPhnt/PYStPPKVw== X-Received: by 2002:a05:622a:250:: with SMTP id c16mr27030812qtx.7.1617111913388; Tue, 30 Mar 2021 06:45:13 -0700 (PDT) Received: from nuc ([142.126.164.150]) by smtp.gmail.com with ESMTPSA id h16sm13143301qto.45.2021.03.30.06.45.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 Mar 2021 06:45:12 -0700 (PDT) Sender: Mark Johnston Date: Tue, 30 Mar 2021 09:45:14 -0400 From: Mark Johnston To: Christos Chatzaras Cc: FreeBSD-STABLE Mailing List , "gjb@freebsd.org" , "jtl@freebsd.org" , kib@freebsd.org Subject: Re: FreeBSD 13.0-RC4 and Nginx process "stuck" during restart Message-ID: References: <94CCFC59-B381-40B1-8F85-F86D87A16B53@cretaforce.gr> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <94CCFC59-B381-40B1-8F85-F86D87A16B53@cretaforce.gr> X-Rspamd-Queue-Id: 4F8rL24ng1z4k2B X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; none X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[] X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 30 Mar 2021 13:45:14 -0000 On Mon, Mar 29, 2021 at 10:57:09PM +0300, Christos Chatzaras wrote: > Hello, > > > I upgrade from 12.2 to 13.0-RC4 and I notice a strange issue with Nginx. > > When I run "service nginx restart" in some (random) servers it doesn't complete the restart and it "stucks" at "Waiting for PIDS: 20536." . > > I can kill the 20536 process and then restart completes. > > > procstat -kk 20536: > > PID TID COMM TDNAME KSTACK > 63094 100505 nginx - mi_switch+0xc1 sleepq_catch_signals+0x2e6 sleepq_wait_sig+0x9 _sleep+0x1be kern_sigsuspend+0x164 sys_sigsuspend+0x31 amd64_syscall+0x10c fast_syscall_common+0xf8 > > > I found this commit: > > https://cgit.freebsd.org/src/commit/?id=dbec10e08808e375365fb2a2462f306e0cdfda32 > > Could this be related? If yes can we have the patch in releng/13.0 ? I think it is hard to say without some testing. Are you able to verify that backporting the patch fixes the hangs?