From owner-freebsd-current@freebsd.org Thu Nov 7 20:29:22 2019 Return-Path: Delivered-To: freebsd-current@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 81ECB1BFCC7 for ; Thu, 7 Nov 2019 20:29:22 +0000 (UTC) (envelope-from sgk@troutmask.apl.washington.edu) Received: from troutmask.apl.washington.edu (troutmask.apl.washington.edu [128.95.76.21]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "troutmask", Issuer "troutmask" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 478FPF5zjRz4HLl for ; Thu, 7 Nov 2019 20:29:21 +0000 (UTC) (envelope-from sgk@troutmask.apl.washington.edu) Received: from troutmask.apl.washington.edu (localhost [127.0.0.1]) by troutmask.apl.washington.edu (8.15.2/8.15.2) with ESMTPS id xA7KTJlO004641 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO) for ; Thu, 7 Nov 2019 12:29:19 -0800 (PST) (envelope-from sgk@troutmask.apl.washington.edu) Received: (from sgk@localhost) by troutmask.apl.washington.edu (8.15.2/8.15.2/Submit) id xA7KTJPX004640 for freebsd-current@freebsd.org; Thu, 7 Nov 2019 12:29:19 -0800 (PST) (envelope-from sgk) Date: Thu, 7 Nov 2019 12:29:19 -0800 From: Steve Kargl To: freebsd-current@freebsd.org Subject: unkillable process consuming 100% cpu Message-ID: <20191107202919.GA4565@troutmask.apl.washington.edu> Reply-To: sgk@troutmask.apl.washington.edu MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.12.2 (2019-09-21) X-Rspamd-Queue-Id: 478FPF5zjRz4HLl X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=none (mx1.freebsd.org: domain of sgk@troutmask.apl.washington.edu has no SPF policy when checking 128.95.76.21) smtp.mailfrom=sgk@troutmask.apl.washington.edu X-Spamd-Result: default: False [-1.31 / 15.00]; ARC_NA(0.00)[]; HAS_REPLYTO(0.00)[sgk@troutmask.apl.washington.edu]; NEURAL_HAM_MEDIUM(-0.99)[-0.987,0]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; IP_SCORE(-0.23)[ip: (0.06), ipnet: 128.95.0.0/16(-0.29), asn: 73(-0.85), country: US(-0.05)]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; TO_DN_NONE(0.00)[]; AUTH_NA(1.00)[]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-1.00)[-0.997,0]; DMARC_NA(0.00)[washington.edu]; REPLYTO_ADDR_EQ_FROM(0.00)[]; R_SPF_NA(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:73, ipnet:128.95.0.0/16, country:US]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 07 Nov 2019 20:29:22 -0000 I haven't seen anyone post about an unkillable process (even by root), which consumes 100% cpu. last pid: 4592; load averages: 1.24, 1.08, 0.74 up 13+20:21:20 12:26:29 68 processes: 2 running, 66 sleeping CPU: 0.1% user, 0.0% nice, 12.6% system, 0.0% interrupt, 87.2% idle Mem: 428M Active, 11G Inact, 138M Laundry, 2497M Wired, 1525M Buf, 2377M Free Swap: 16G Total, 24M Used, 16G Free PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND 69092 kargl 2 45 0 342M 148M CPU2 2 12:51 100.07% chrome Neither of these have an effect. kill -1 69092 kill -9 69069 Attempts to attach gdb831 to -p 69092 leads to hung xterm. -- Steve