[Qemu-devel] [Bug 1837909] Re: test-char fails if host has no network interfaces

[elmarco]

This should be addressed by:
https://patchew.org/QEMU/address@hidden/

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https://bugs.launchpad.net/bugs/1837909

Title:
  test-char fails if host has no network interfaces

Status in QEMU:
  New

Bug description:
  # ./tests/test-char 
  # random seed: R02S8602535bf831a74bca571d8c416d8161
  1..34
  # Start of char tests
  ...
  ok 12 /char/websocket
  # Start of stdio tests
  # End of stdio tests
  # Start of socket tests
  # Start of server tests
  # Start of mainloop tests
  Unexpected error in inet_parse_connect_saddr() at util/qemu-sockets.c:421:
  # 
  # address resolution failed for 127.0.0.1:42275: Name or service not known
  # 

  Aborted (core dumped)

  
  # ip a
  1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group 
default qlen 1000
      link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
      inet 127.0.0.1/8 scope host lo
         valid_lft forever preferred_lft forever
      inet6 ::1/128 scope host 
         valid_lft forever preferred_lft forever

  
  This seems to be related to use of AI_ADDRCONFIG in qemu-sockets.c 
inet_parse_connect_saddr, dropping it fixes the test. 'man getaddrinfo' makes 
it sound like AI_ADDRCONFIG requires the host to have a non-loopback ipv4 or 
ipv6 address available

  This host setup may seem niche, but it is what the 'mock' RPM build
  tool has by default. In Fedora we run the test suite during the RPM
  build, so the failing test causes a bit of pain for certain workflows

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