That fixed it. Thank you, Pat! - Pat On Fri, Nov 1, 2019 at 6:51 AM Pat Riehecky <[log in to unmask]> wrote: > > Can you clear you cache and test again? > > Pat > > On 11/1/19 8:20 AM, Pat Riehecky wrote: > > Can do. > > > > Good catch! > > > > On 10/31/19 3:28 PM, Patrick J. LoPresti wrote: > >> I decided to try playing with dnf-4.0.9.2-1.el7_6.noarch from > >> 7x/external_products/extras/x86_64. But whenever I attempt any dnf > >> operation with the main SL7 repository configured (e.g. 7x/x86_64/os), > >> dnf fails to load the repository with the following error: > >> > >> basic_string::_S_construct null not valid, ignoring this repo. > >> > >> I tracked this down to these lines in libdnf (see > >> https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_rpm-2Dsoftware-2Dmanagement_libdnf_blob_ad6d26fb0b9c92838b98513be47c2837ca165ce7_libdnf_repo_Repo.cpp-23L1025&d=DwIBaQ&c=gRgGjJ3BkIsb5y6s49QqsA&r=gd8BzeSQcySVxr0gDWSEbBYBgsCHS7vSr83lHQ-aa58eXICk1KkzZlAHgohLRRrX&m=oV6hpXkb7j1aO27zXIgqbe1G5TT-orJBbynPDrTir4w&s=rOy-wFxOo11xo1NKNy5gv6hwcthwhz46XSDw6bhztxI&e= > >> ): > >> > >> if (distroTag->tag) > >> distro_tags.emplace_back(distroTag->cpeid, distroTag->tag); > >> > >> The problem is that distroTag->tag is non-NULL, but distroTag->cpeid > >> *is* NULL. So this code tries to create a std::string from a NULL > >> pointer, which throws a C++ runtime_error exception. > >> > >> These values originate from the repomd.xml file. The CentOS 8 > >> repomd.xml has this <distro> tag (note "cpeid" attribute): > >> > >> <distro cpeid="cpe:/o:centos:centos:8">CentOS 8</distro> > >> > >> The Centos 7 repomd.xml has no <distro> tag at all. Both of these > >> repositories work fine. > >> > >> But SL7 has this <distro> tag (note missing "cpeid" attribute): > >> > >> <distro>cpe:/o:scientificlinux:scientificlinux:7.7:GA</distro> > >> > >> Since the <distro> tag is present but the "cpeid" attribute is NULL, > >> the failure path in libdnf is triggered. > >> > >> When I manually edit the SL7 repomd.xml to add "cpeid" attribute to > >> the <distro> tag, or when I simply remove the <distro> tag entirely, > >> dnf becomes happy with the repository. > >> > >> Could you modify repomd.xml to make it compatible with dnf? > >> > >> Thanks! > >> > >> - Pat > > > > -- > Pat Riehecky > > Fermi National Accelerator Laboratory > http://www.fnal.gov > https://urldefense.proofpoint.com/v2/url?u=http-3A__www.scientificlinux.org&d=DwIFaQ&c=gRgGjJ3BkIsb5y6s49QqsA&r=gd8BzeSQcySVxr0gDWSEbBYBgsCHS7vSr83lHQ-aa58eXICk1KkzZlAHgohLRRrX&m=wUjGL5z6Pzg4QooQb3z91jAdjUztGh0EPH2CkuvQLis&s=-ydBkBl2jifsbpANCBZfxJGQEJVYKwRQcFcrIi2tJ6A&e=
