From nobody Fri Mar 25 21:32:05 2022 X-Original-To: freebsd-current@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 535F21A2511C for ; Fri, 25 Mar 2022 21:32:07 +0000 (UTC) (envelope-from jhb@FreeBSD.org) Received: from smtp.freebsd.org (smtp.freebsd.org [IPv6:2610:1c1:1:606c::24b:4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4KQFfb20Ntz4vnW; Fri, 25 Mar 2022 21:32:07 +0000 (UTC) (envelope-from jhb@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1648243927; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=x+nGI/fknQwFNZMDoJsrvFJi6HZ2zCFvapUEXuQA1oY=; b=sng/cjHKU06Y9ujE4Qy4UgVtjkZ/WBfZqED2HScYDwucBgbnHTZHukzlxMhAUZ0qvOWIYr tfU7yc+9UNhaqcsi9ZHPQpThTZ+VGkHNESyOljVHjdAlkgkRqIOpGVGAinh8zVPfoeQ5ib l+BfkkiVdoZW0K9ZZIN1GXveCp8r7XxLiw5cC3F+Xepot9t6rtSsZGg1XTtYMuV3RtTMk8 grAbFWJx6vZMlwIv8nTcI88KEQj50kfAhk/VzjeanadY59ganQTOLyrwaV1ccnXyhsewHR EZERK0K/1Koi8mymInG626Eq2HMDoSpS/ffr66ZwsJrhJGnhcS+iLtLTRaoc8A== Received: from [10.0.1.4] (ralph.baldwin.cx [66.234.199.215]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) (Authenticated sender: jhb) by smtp.freebsd.org (Postfix) with ESMTPSA id D33B32228B; Fri, 25 Mar 2022 21:32:06 +0000 (UTC) (envelope-from jhb@FreeBSD.org) Message-ID: <70135754-84c2-b642-5641-0721e0b4690d@FreeBSD.org> Date: Fri, 25 Mar 2022 14:32:05 -0700 List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@freebsd.org MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:91.0) Gecko/20100101 Thunderbird/91.7.0 Subject: Re: ktrace on NFSroot failing? Content-Language: en-US To: freebsd-current@freebsd.org References: From: John Baldwin Cc: Rick Macklem In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1648243927; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=x+nGI/fknQwFNZMDoJsrvFJi6HZ2zCFvapUEXuQA1oY=; b=vZiP8eWJc1kp9AOa4fuw4ORZyuPC6mZQv31RIc+3zvUlyA2L8oLnEeCEAIwsWCoLLvLlSX 043pGSGS8Wgg/GagWpz9ixv+p7I94XknsInfDdrLaFsUBXTFGv0eV7mazC7YhAIwX3EN8h uu73D/s1W4p6DCfUkjMI2F/pBD/qDclr/pwJTG5fg0KcrGwNprO/uV+8aWTal24ySFv2zi yFQPc9sclR8CWqMOv1UeZsWRTaiukItumOJ00vbJ510yKxN4P3zQfOud4iVZyuObr3CQa6 neHh5Yum8z4GcwKceQMMuSqThbM4nmZO0vlakejPBoRr1wQpF6ElUFDpu5gy+Q== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1648243927; a=rsa-sha256; cv=none; b=dwZ4GA1IaCTxCDt05uzoMzD0atfxqPu5AeemuiQ/+9LdKFOI4jOzvDgRjdOh13MbKcr1vm +AgwNgUwMaSwBjtZIdin1M1ncmcggWq7T0lfRC6hXNoFmo3AQ0meo44XMS0sU+jm/3/eoX i6Fedzw7kaRYFsCtjlhC8oWmiNWRi9DctH1wD6ddY9ZkVvFOUcfx2sMyal5EW/CPGATjBG u1rH0b0TC2FurFwCvm4NUvjPnM8fiaTgTJaJKr9Y5GX2NUBOZrODflZhpcV0XPIg1DF6Td SpYmmaxjG1eSEhioozL5pYvJMnxzx5ukTufWYpSdshQrR/3YT6ad5G1mgczklQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N On 3/10/22 8:14 AM, Mateusz Guzik wrote: > On 3/10/22, Bjoern A. Zeeb wrote: >> Hi, >> >> I am having a weird issue with ktrace on an nfsroot machine: >> >> root:/tmp # ktrace sleep 1 >> root:/tmp # kdump >> -559038242 Events dropped. >> kdump: bogus length 0xdeadc0de >> >> Anyone seen something like this before? >> > > I just did a quick check and it definitely fails on nfs mounts: > # ktrace pwd > /root/mjg > # kdump > -559038242 Events dropped. > kdump: bogus length 0xdeadc0de > > I don't have time to look into it this week though. Possibly related: core dumps are no longer working for me on NFS mounts. I get a 0 byte foo.core instead of a valid core dump. -- John Baldwin