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[Po-Hsu Lin <po-hsu.lin@xxxxxxxxxxxxx>]

** No longer affects: ubuntu-kernel-tests

** Also affects: linux-kvm (Ubuntu Disco)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1812176

Title:
  psock_tpacket from the net test in ubuntu_kernel_selftests failed on
  KVM kernels

Status in linux-kvm package in Ubuntu:
  New
Status in linux-kvm source package in Xenial:
  New
Status in linux-kvm source package in Bionic:
  New
Status in linux-kvm source package in Disco:
  New

Bug description:
  The psock_tpacket in the net test from ubuntu_kernel_selftests failed with B-KVM
  $ sudo ./psock_tpacket 
  test: TPACKET_V1 with PACKET_RX_RING open: No such file or directory

  Look into the code, it seems that this file not found error is caused
  by the attempt to access /proc/kallsyms in test_kernel_bit_width():

  static int test_kernel_bit_width(void)
  {
  	char in[512], *ptr;
  	int num = 0, fd;
  	ssize_t ret;

  	fd = open("/proc/kallsyms", O_RDONLY);
  	if (fd == -1) {
  		perror("open");
  		exit(1);
  	}

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: linux-image-4.15.0-1028-kvm 4.15.0-1028.28
  ProcVersionSignature: User Name 4.15.0-1028.28-kvm 4.15.18
  Uname: Linux 4.15.0-1028-kvm x86_64
  ApportVersion: 2.20.9-0ubuntu7.5
  Architecture: amd64
  Date: Thu Jan 17 08:05:47 2019
  SourcePackage: linux-kvm
  UpgradeStatus: No upgrade log present (probably fresh install)

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