From debbugs-submit-bounces@debbugs.gnu.org Thu May 03 11:16:40 2018 Received: (at 30993) by debbugs.gnu.org; 3 May 2018 15:16:40 +0000 Received: from localhost ([127.0.0.1]:48374 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fEFyK-0002wa-9L for submit@debbugs.gnu.org; Thu, 03 May 2018 11:16:40 -0400 Received: from gabriel-vm-2.zfn.uni-bremen.de ([134.102.50.10]:43902 helo=smtp.uni-bremen.de) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fEFyI-0002wI-T8 for 30993@debbugs.gnu.org; Thu, 03 May 2018 11:16:39 -0400 Received: from [192.168.178.5] (ip4d171518.dynamic.kabel-deutschland.de [77.23.21.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.uni-bremen.de (Postfix) with ESMTPSA id 9052320501; Thu, 3 May 2018 17:16:32 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=uni-bremen.de; s=dkim; t=1525360592; bh=vnmwLPKGKub4zjIRf3LK8gLlTGh4n4WktPXJbM8MQSQ=; h=To:Cc:References:From:Date:In-Reply-To; b=Nx7KZDxKpicEMIyz+3oM4eMSXd35VMJkBx6YcwGjqfnqvxD3hD4s1c0nHWlfnPMzo FENNRKB3z4EQQXzrwRkHU6Vq61t4q5QeJtjztaT2rofQ+jCFErePTJTRoRFB3daofM 8lVhDVud+mQoGLYBHMOJbKiwLSgkImg7mQ9BWVgU= Subject: Re: bug#30993: OpenSSH sshd killed by Shepherd 0.4.0 To: =?UTF-8?Q?Ludovic_Court=c3=a8s?= References: <20180329200803.GA15842@jasmine.lan> <877epk3fuy.fsf@gnu.org> <20180406124101.GB1883@jasmine.lan> <87r2mvnm29.fsf@gnu.org> From: Martin Castillo Openpgp: preference=signencrypt Autocrypt: addr=castilma@uni-bremen.de; prefer-encrypt=mutual; keydata= xsBNBFXp3VwBCACz5FpcoKuJTL5fndn8CSApG22k/Tmpy2hur38IQKAeIFlk82Z4tvrConIM 31JeFulbBXIxHyiW6Y3358YUPe1FLnG6x3bzO0Dlhb72cgb1KZtrrfNE4tahjPTzBaTqwuvg O2OOAwDhHDv1OyBz/7wS4yUiEoNmjHYMieu7kzGnC4w3sjNESDYKoKqoNN1bx4XZMNPnUG1D +p5IOfhRD3fIMEJcnkIjQmR0mKLdlCZmpH7rYDbqg/aF7n0RsDoJ8dAVxLTKMG0HB7w5hI37 9nJfcIziTfmyd8QM2TN7nEDokRqUMs5jXohzScyo4AL8/dKxPMgJih+muGbTMvbvLmdbABEB AAHNLE1hcnRpbiBDYXN0aWxsbyA8TWFydGluLkNhc3RpbGxvQGZyZWVuZXQuZGU+wsCBBBMB AgArAhsDBgsJCAcDAgYVCAIJCgsEFgIDAQIeAQIXgAUJENTBQQUCWZY2KwIZAQAKCRDME0jx 5kQI7HbJB/9W6FpUV8SjrRLntlboZAhxoK/myrQCDWCk3yHJtHJGTabaEx44Ti7AaRm54O5W LORmlmL3ck+ReNzrR8u/xIVZ/gCRdt+GnEtDwm5FLZjRXbbaTFovlOQWLu0IW1iUllizGV7F aHjPdBoWjkLLLMA9aHDtfkzAxO4qlQZvjXSKvJHGp05AlPuPmtfqNSIXH0bh9rxOmKDMCj8J rHtnDzyVjzjBaakNYoQS+DNvjzLkzvcBZZ6Q99d/O0w5esRCaqAKFzSilxFT85Q8gpWIqLkP h9ylQ0HxjB03bQqQzV9BpVQ+Qv4Ovf+K9yptTUANxD3xY70RHzeQNvrS3FV3mKjPzsBNBFXp 3VwBCADTmylgxDM50a78oW4RJYuDRPq1nDj0R5Kw7SvmH3Du00jy+Mo2I6+4fKGogLEKH+HS gn9iSZFX09scxQEcQuZk0j+fAcbdY4gEBZpTE87Mc2y3C/q2gnMLkwKUb5Cx0WNx5HnWLIse G6sa4cHzj3CtsS6H/YDJver69eEIfNac0HC98HKhKV4WrcY1JG0lfNnLJ8frf7pEQv+/KIOt C/QE742DO5p1fAvaKtuNxAzJP1I5iWc8zp9fe5cA7zc0wXgpNBDxGfs3ww2+VJkSTVbCKoen J8WEhqBnvPq8i2ogF3C7c45DulIb3CBYNtttIoLQ5D/1e7JSYUF9iIPxUdTjABEBAAHCwGUE GAECAA8CGwwFAlmWN64FCRDUwtIACgkQzBNI8eZECOwkiwf8DpOJmziCx2QauLK7olxOq1U2 S81nD9UZfaycw7hQ6L+oCYPZuG/0v1losqfSBgAZSlY3f2SmTbg/uOJEepV6000SEcm+6shu LZ3qLNM+pQr2dX09Ch0lX9nrwIua3Lkbo6XEgN/h6wc0psr7GmmutAGzVG3dnBiRnXYqw4bR ab05xMBWY82GTUnGtKmVXAUJxkhUftWDR1uXUxeJnQToBw72XQ5nxGU3K6xOYhtY9+tMo0um kcN4sJf/I/Y/A8Gbc6+Ry7f16RtCTZ4+PnF/GaQ1ec9kpF6IV6nAFhOdrVnvEANmqcvGMx5c sutNKoih/YzfyhoLbkvUkgoAQIuZ6g== Message-ID: Date: Thu, 3 May 2018 17:16:32 +0200 MIME-Version: 1.0 In-Reply-To: <87r2mvnm29.fsf@gnu.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 30993 Cc: 30993@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) On 01.05.2018 22:43, Ludovic Courtès wrote: >> Maybe one could somehow strace herd, or change the make-kill-destructor >> to log every time it is being executed? > > ‘herd status sshd’ displays the last time sshd was respawned, but the > info ‘herd’ receives actually includes the dates of all the respawns, > not just the last one. Is that what you’re asking for? > My idea was that maybe make-kill-destructor is being called from somewhere else. If this is being logged, one could rule that out. Another wild idea would be sshd killing itself for some reason. stracing sshd would tell us, if that's the case. How would one do that? Does shepherd provide some debugging functions? Or does linux provide a way to log all sent signals so one could find the sending process? Martin -- GPG: 7FDE 7190 2F73 2C50 236E 403D CC13 48F1 E644 08EC