Project Number Date
test_Tails_ISO_devel 3631 03 Jan 2025, 12:25

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 11:8.852 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.
21.421
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.896
And I prepare Tails for memory erasure tests 0.379
When I start a process allocating 128 MiB of memory with a known pattern 2.291
Then patterns cover at least 128 MiB in the guest's memory 3.330

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

When I kill the allocating process 1.686
Then I find very few patterns in the guest's memory after 3 seconds 5.837

Pattern coverage: 0.000% (0 MiB out of 908 MiB reference memory)

After features/support/hooks.rb:326 0.818
After features/support/hooks.rb:100 0.000
26.522
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.733
And I prepare Tails for memory erasure tests 0.407
And I find very few patterns in the guest's memory 3.663

Pattern coverage: 0.000% (0 MiB out of 909 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.365
Then patterns cover at least 99% of the test FS size in the guest's memory 3.900

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

When I umount "/mnt" 1.267
Then I find very few patterns in the guest's memory after 3 seconds 6.184

Pattern coverage: 0.000% (0 MiB out of 909 MiB reference memory)

After features/support/hooks.rb:326 0.823
After features/support/hooks.rb:100 0.000
46.509
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.929
And I prepare Tails for memory erasure tests 0.410
When I plug and mount a 128 MiB USB drive with a vfat filesystem 8.967
Then I find very few patterns in the guest's memory 3.163

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.679
Then patterns cover at least 75% of the test FS size in the guest's memory 4.028

Pattern coverage: 84.709% (108 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.666
Then I find very few patterns in the guest's memory after 3 seconds 6.418

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

# read cache
When I mount the USB drive again 0.189
And I read the content of the test FS 0.483
Then patterns cover at least 99% of the test FS size in the guest's memory 3.914

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

When I umount the USB drive 0.606
Then I find very few patterns in the guest's memory after 3 seconds 6.050

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

After features/support/hooks.rb:326 0.897
After features/support/hooks.rb:100 0.000
1:17.710
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.862
And I prepare Tails for memory erasure tests 0.370
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 40.928
Then I find very few patterns in the guest's memory 2.341

Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.359
Then patterns cover at least 99% of the test FS size in the guest's memory 2.836

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

When I umount the USB drive 1.479
Then I find very few patterns in the guest's memory after 3 seconds 5.311

Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)

# read cache
When I mount the USB drive again 5.242
And I read the content of the test FS 0.464
Then patterns cover at least 99% of the test FS size in the guest's memory 2.485

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

When I umount the USB drive 0.877
Then I find very few patterns in the guest's memory after 3 seconds 5.148

Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)

After features/support/hooks.rb:326 1.086
After features/support/hooks.rb:100 0.000
50.223
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 7.864
And I prepare Tails for memory erasure tests 0.379
When I fill a 128 MiB file with a known pattern on the root filesystem 17.131
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.725
Then patterns cover at least 128 MiB in the guest's memory 2.225

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 20.884

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

After features/support/hooks.rb:326 3.521
After features/support/hooks.rb:100 0.000
7:26.465
Before features/support/hooks.rb:269 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:42.615
And I prepare Tails for memory erasure tests 0.395
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.302
When I trigger shutdown 0.020
Then I find very few patterns in the guest's memory after 20 seconds 21.130

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

After features/support/hooks.rb:326 3.562
After features/support/hooks.rb:100 0.011