From owner-freebsd-java@freebsd.org Thu Aug 29 17:51:28 2019 Return-Path: Delivered-To: freebsd-java@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 DAE31DC3AD for ; Thu, 29 Aug 2019 17:51:28 +0000 (UTC) (envelope-from glewis@eyesbeyond.com) Received: from misty.eyesbeyond.com (gerbercreations.com [71.39.140.16]) by mx1.freebsd.org (Postfix) with ESMTP id 46K9CK69zFz3yTP for ; Thu, 29 Aug 2019 17:51:25 +0000 (UTC) (envelope-from glewis@eyesbeyond.com) Received: from misty.eyesbeyond.com (localhost.eyesbeyond.com [127.0.0.1]) by misty.eyesbeyond.com (8.15.2/8.15.2) with ESMTP id x7THpINi082966; Thu, 29 Aug 2019 10:51:18 -0700 (PDT) (envelope-from glewis@eyesbeyond.com) Received: (from glewis@localhost) by misty.eyesbeyond.com (8.15.2/8.15.2/Submit) id x7THpIFN082965; Thu, 29 Aug 2019 10:51:18 -0700 (PDT) (envelope-from glewis@eyesbeyond.com) X-Authentication-Warning: misty.eyesbeyond.com: glewis set sender to glewis@eyesbeyond.com using -f Date: Thu, 29 Aug 2019 10:51:13 -0700 From: Greg Lewis To: Miroslav =?utf-8?B?xaBpbGhhdsO9?= Cc: "freebsd-java@freebsd.org" Subject: Re: linux-oracle-jre18-8.221 in jail as non-root user Message-ID: <20190829175113.GB82326@misty.eyesbeyond.com> References: <5E021FC9-E149-400C-B0B1-75A4627311E2@jelly.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <5E021FC9-E149-400C-B0B1-75A4627311E2@jelly.cz> User-Agent: Mutt/1.12.1 (2019-06-15) X-Rspamd-Queue-Id: 46K9CK69zFz3yTP X-Spamd-Bar: / Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=none (mx1.freebsd.org: domain of glewis@eyesbeyond.com has no SPF policy when checking 71.39.140.16) smtp.mailfrom=glewis@eyesbeyond.com X-Spamd-Result: default: False [0.70 / 15.00]; ARC_NA(0.00)[]; TO_DN_EQ_ADDR_SOME(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; NEURAL_HAM_LONG(-0.62)[-0.622,0]; MIME_GOOD(-0.10)[text/plain]; HAS_XAW(0.00)[]; DMARC_NA(0.00)[eyesbeyond.com]; AUTH_NA(1.00)[]; NEURAL_SPAM_MEDIUM(0.62)[0.618,0]; TO_MATCH_ENVRCPT_SOME(0.00)[]; NEURAL_HAM_SHORT(-0.27)[-0.275,0]; RCPT_COUNT_TWO(0.00)[2]; R_SPF_NA(0.00)[]; RCVD_NO_TLS_LAST(0.10)[]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:209, ipnet:71.39.128.0/20, country:US]; RCVD_COUNT_TWO(0.00)[2]; IP_SCORE(-0.02)[asn: 209(-0.04), country: US(-0.05)] X-BeenThere: freebsd-java@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Porting Java to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Aug 2019 17:51:28 -0000 On Fri, Aug 23, 2019 at 05:43:22AM +0000, Miroslav Šilhavý wrote: > Hello, > I am trying to get linux-oracle-jre18-8.221 working within a jail as non privileged user. > > When I install the package (from ports) on raw FBSD 12, everything works OK. Java is able to run under root account and under arbitrary user as well. > > When I reproduce the same steps within a jail, I am able to run java under root account. But under arbitrary user java binary gets stucked. I am trying to run pure java binary (/usr/local/linux-oracle-jre1.8.0/bin/java) with no parameters which should lead to print java’s usage help. But execution stucks, nothing is printed to output and binary never finishes. > > Is it even possible to run Oracle Java under jail under unprivileged user? Do I miss something? The Linux JDKs rely at least to some extent on access to Linux's /proc filesystem. Is /compat/linux/proc visible inside of the jail? If not that might be something to look at. -- Greg