Project Number Date
test_Tails_ISO_20297-test-suite-reject-allow-internal-dns-resolution 13 11 Apr 2025, 22:28

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 51 0 0 0 0 51 6 0 6 10:34.132 Passed
Feature System memory erasure on shutdown
As a Tails user when I shutdown Tails I want the system memory to be free from sensitive data.
23.662
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 7.947
And I prepare Tails for memory erasure tests 0.450
When I start a process allocating 128 MiB of memory with a known pattern 2.561
Then patterns cover at least 128 MiB in the guest's memory 3.233

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I kill the allocating process 0.792
Then I find very few patterns in the guest's memory after 5 seconds 8.676

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

After features/support/hooks.rb:330 0.807
After features/support/hooks.rb:100 0.000
25.017
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.105
And I prepare Tails for memory erasure tests 0.486
And I find very few patterns in the guest's memory 3.707

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.772
Then patterns cover at least 99% of the test FS size in the guest's memory 3.919

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I umount "/mnt" 0.481
Then I find very few patterns in the guest's memory after 3 seconds 6.543

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

After features/support/hooks.rb:330 0.858
After features/support/hooks.rb:100 0.000
45.100
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 7.792
And I prepare Tails for memory erasure tests 0.420
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.142
Then I find very few patterns in the guest's memory 3.047

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.409
Then patterns cover at least 75% of the test FS size in the guest's memory 3.549

Pattern coverage: 88.440% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.889
Then I find very few patterns in the guest's memory after 3 seconds 6.336

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

# read cache
When I mount the USB drive again 0.270
And I read the content of the test FS 0.529
Then patterns cover at least 99% of the test FS size in the guest's memory 3.846

Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.445
Then I find very few patterns in the guest's memory after 3 seconds 6.421

Pattern coverage: 0.001% (0 MiB out of 884 MiB reference memory)

After features/support/hooks.rb:330 1.040
After features/support/hooks.rb:100 0.000
1:15.395
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 7.942
And I prepare Tails for memory erasure tests 0.500
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.823
Then I find very few patterns in the guest's memory 2.735

Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.471
Then patterns cover at least 99% of the test FS size in the guest's memory 2.996

Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.666
Then I find very few patterns in the guest's memory after 3 seconds 5.924

Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)

# read cache
When I mount the USB drive again 5.085
And I read the content of the test FS 0.444
Then patterns cover at least 99% of the test FS size in the guest's memory 3.407

Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.540
Then I find very few patterns in the guest's memory after 3 seconds 5.858

Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)

After features/support/hooks.rb:330 1.446
After features/support/hooks.rb:100 0.000
49.603
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 7.887
And I prepare Tails for memory erasure tests 0.418
When I fill a 128 MiB file with a known pattern on the root filesystem 16.200
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.726
Then patterns cover at least 128 MiB in the guest's memory 2.649

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 20.709

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

After features/support/hooks.rb:330 3.500
After features/support/hooks.rb:100 0.000
6:55.352
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:11.181
And I prepare Tails for memory erasure tests 0.386
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.526
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.246

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

After features/support/hooks.rb:330 3.499
After features/support/hooks.rb:100 0.052