From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) by sourceware.org (Postfix) with ESMTP id 0D2B93858435 for ; Sat, 28 Aug 2021 14:41:41 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 0D2B93858435 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-219-keWQhsJjOEivghuNvjIL9w-1; Sat, 28 Aug 2021 10:41:33 -0400 X-MC-Unique: keWQhsJjOEivghuNvjIL9w-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 8C1F71008062; Sat, 28 Aug 2021 14:41:32 +0000 (UTC) Received: from redhat.com (ovpn-112-63.phx2.redhat.com [10.3.112.63]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 715F81002388; Sat, 28 Aug 2021 14:41:32 +0000 (UTC) Received: from fche by redhat.com with local (Exim 4.94.2) (envelope-from ) id 1mJzWU-0000C6-Ol; Sat, 28 Aug 2021 10:41:30 -0400 Date: Sat, 28 Aug 2021 10:41:30 -0400 From: "Frank Ch. Eigler" To: Mark Wielaard Cc: elfutils-devel@sourceware.org Subject: Re: Buildbot failure in Wildebeest Builder on whole buildset Message-ID: <20210828144130.GA679@redhat.com> References: <20210827231914.54F2E817A9B@builder.wildebeest.org> MIME-Version: 1.0 In-Reply-To: User-Agent: Mutt/1.12.0 (2019-05-25) X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Spam-Status: No, score=-6.8 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: elfutils-devel@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Elfutils-devel mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 28 Aug 2021 14:41:51 -0000 Hi - > This took me a while to figure out because it does not consistently > fail. It turns out that sharing a database between two debuginfod > instances (especially if they forward queries to each other) is not a > good idea. That's correct. Each test case invocation of debuginfod should be run with its own -d $database. > Hopefully fixed with the attached patch. > At first I had hoped that using -d :memory: would work. But debuginfod > doesn't really support in memory databases like that. [...] Yes, that functionality was broken at the point you identifed. We could bring it back by hacking debuginfod's command line parser to map -d :memory: to -d file::memory:?cache=shared (https://sqlite.org/inmemorydb.html) - FChE