From owner-freebsd-current@freebsd.org Sat Jun 27 07:45:47 2020 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 55844347149 for ; Sat, 27 Jun 2020 07:45:47 +0000 (UTC) (envelope-from greg@unrelenting.technology) Received: from out1.migadu.com (out1.migadu.com [91.121.223.63]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 49v5Qf2WlSz4Tm3 for ; Sat, 27 Jun 2020 07:45:46 +0000 (UTC) (envelope-from greg@unrelenting.technology) Date: Sat, 27 Jun 2020 07:45:34 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=unrelenting.technology; s=default; t=1593243938; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=V2zqhAXHdBlLKZtGAvWuu6Cyik/1P9Q8ULtxRizQ9EY=; b=hSYbd7/DIkhWV3ivaITkYyvcKB06ALWRxU3YhMdUFTq84wJ4RvECvW9Q22AV1SsAA3WqwQ InIWBy5Uqi1vK3i+Q8RvRrt+07ulOsv6bIn6Ns0gwco4j5AfmX5u0banTHHy0VMNymT5Fo xN6AbuAMGnpPBjgXnDeeleMs1YdSE7Q= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: myfreeweb To: freebsd-current@freebsd.org, "Hartmann, O." Subject: Re: weird Ctrl-T debug messages In-Reply-To: <20200627090406.68b5d637@hermann.fritz.box> References: <20200627090406.68b5d637@hermann.fritz.box> Message-ID: <51032BAE-9E11-4818-87E2-431859C2E728@unrelenting.technology> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -0.10 X-Rspamd-Queue-Id: 49v5Qf2WlSz4Tm3 X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=unrelenting.technology header.s=default header.b=hSYbd7/D; dmarc=pass (policy=none) header.from=unrelenting.technology; spf=pass (mx1.freebsd.org: domain of greg@unrelenting.technology designates 91.121.223.63 as permitted sender) smtp.mailfrom=greg@unrelenting.technology X-Spamd-Result: default: False [-3.35 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.93)[-0.927]; R_DKIM_ALLOW(-0.20)[unrelenting.technology:s=default]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+ip4:91.121.223.63]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DKIM_TRACE(0.00)[unrelenting.technology:+]; RCPT_COUNT_TWO(0.00)[2]; DMARC_POLICY_ALLOW(-0.50)[unrelenting.technology,none]; NEURAL_HAM_SHORT(-0.43)[-0.426]; RCVD_COUNT_ZERO(0.00)[0]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RWL_MAILSPIKE_VERYGOOD(0.00)[91.121.223.63:from]; ASN(0.00)[asn:16276, ipnet:91.121.0.0/16, country:FR]; MID_RHS_MATCH_FROM(0.00)[] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.33 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: Sat, 27 Jun 2020 07:45:47 -0000 On June 27, 2020 7:04:06 AM UTC, "Hartmann, O=2E" wrote: >Running poudriere on recent CURRENT with (recent) 12-STABLE and CURRENT >jails reveals a weird behaviour recently when hitting Ctrl-T: > >[=2E=2E=2E] > >[13:37:48] [01] [00:00:00] Building databases/sqlitestudio | >sqlitestudio-3=2E2=2E1=2E1002 load: 26=2E95 cmd: sh 99331 [piperd] 49375= =2E18r >0=2E59u 0=2E59s 0% 2144k #0 0xffffffff80924ace at mi_switch+0xbe >#1 0xffffffff809781d4 at sleepq_catch_signals+0x4a4 >#2 0xffffffff80977d19 at sleepq_wait_sig+0x9 >#3 0xffffffff809241ad at _sleep+0x1ad >#4 0xffffffff8098ae5a at pipe_read+0x43a >#5 0xffffffff80987a85 at dofileread+0x85 >#6 0xffffffff8098766f at sys_read+0xcf >#7 0xffffffff80d70229 at amd64_syscall+0x119 >#8 0xffffffff80d47bf0 at fast_syscall_common+0x101 > >Is this debug fallout from /bin/sh? Haha, no (how would /bin/sh affect all programs?) It's kern=2Etty_info_kstacks now being on by default in current=2E It's ve= ry useful (not when running poudriere, but when investigating hanging progr= ams) and I probably wouldn't have ever discovered it without the commit mak= ing it default=2E