Created attachment 1691014 [details] example of failing spec Description of problem: mock fails with network disabled, if trying to resolve the local hostname. Version-Release number of selected component (if applicable): mock-2.2-1.fc31.noarch How reproducible: always Steps to Reproduce: 0. Get attached test.spec 1. rpmbuild -bs test.spec 2. mock ../SRPMS/test-2.10-1.fc30.src.rpm --root=fedora-33-x86_64 Alternative: a0. compile mpich program in mock a1. mpirun program Actual results: resolve local hostname fails Expected results: program should run and exit without error Additional info: This is especially annoying as this causing failures in copr. A workaround is to enable network, but that shouldn't be required.
Weird, I tested gethostbyname in mock, and it seems to work even in default systemd-nspawn (--isolation=simple is work-around). <mock-chroot> sh-5.0# cat ~/test.c #include <arpa/inet.h> #include <netdb.h> #include <stdio.h> int main(int argc, char **argv) { char *hostname = argv[1]; struct hostent* h = gethostbyname(hostname); char ip[1000]; inet_ntop(h->h_addrtype, h->h_addr_list[0], ip, 1000); printf("IP of %s is %s\n", hostname, ip); } <mock-chroot> sh-5.0# gcc ~/test.c <mock-chroot> sh-5.0# ./a.out localhost IP of localhost is 127.0.0.1 <mock-chroot> sh-5.0# ./a.out f3c93d2243464e9cb0ff764809b4b681 IP of f3c93d2243464e9cb0ff764809b4b681 is 127.0.0.2 It seems mpich is doing something else? What I think isn't correct is to expect that there's a DNS server doing the translation inside mock. There are no servers available.
https://github.com/pmodels/mpich/pull/4788
FEDORA-2020-d5c4564da8 has been submitted as an update to Fedora 33. https://bodhi.fedoraproject.org/updates/FEDORA-2020-d5c4564da8
I pushed the update to F33+. Let me know if you need this in lower versions.
FEDORA-2020-d5c4564da8 has been pushed to the Fedora 33 testing repository. In short time you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2020-d5c4564da8` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2020-d5c4564da8 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2020-d5c4564da8 has been pushed to the Fedora 33 stable repository. If problem still persists, please make note of it in this bug report.
Thanks for fixing. I am not sure what copr runs on, but if it gets fixed at some point, that works for me :-)
It doesn't matter what copr runs *on*. This package is installed in the build root *inside* of copr. The patch is currently in F33 as mentioned above, so F33 build roots should be fixed, but lower ones not.