Project Number Date
test_Tails_ISO_stable 5110 23 Sep 2024, 08:40

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 11:54.721 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.
24.940
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.662
And I prepare Tails for memory erasure tests 0.422
When I start a process allocating 128 MiB of memory with a known pattern 1.287
Then patterns cover at least 128 MiB in the guest's memory 3.821

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

When I kill the allocating process 1.861
Then I find very few patterns in the guest's memory after 3 seconds 7.884

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

After features/support/hooks.rb:326 4.163
After features/support/hooks.rb:100 0.000
30.247
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 12.393
And I prepare Tails for memory erasure tests 0.396
And I find very few patterns in the guest's memory 2.827

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.101
Then patterns cover at least 99% of the test FS size in the guest's memory 4.285

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

When I umount "/mnt" 1.602
Then I find very few patterns in the guest's memory after 3 seconds 6.641

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

After features/support/hooks.rb:326 1.274
After features/support/hooks.rb:100 0.000
51.655
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.526
And I prepare Tails for memory erasure tests 0.820
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.587
Then I find very few patterns in the guest's memory 2.849

Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.711
Then patterns cover at least 75% of the test FS size in the guest's memory 4.282

Pattern coverage: 88.036% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.884
Then I find very few patterns in the guest's memory after 3 seconds 6.551

Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)

# read cache
When I mount the USB drive again 1.058
And I read the content of the test FS 0.663
Then patterns cover at least 99% of the test FS size in the guest's memory 4.234

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

When I umount the USB drive 0.912
Then I find very few patterns in the guest's memory after 3 seconds 6.574

Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)

After features/support/hooks.rb:326 1.338
After features/support/hooks.rb:100 0.000
1:23.558
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 11.365
And I prepare Tails for memory erasure tests 0.493
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.594
Then I find very few patterns in the guest's memory 3.178

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.743
Then patterns cover at least 99% of the test FS size in the guest's memory 3.590

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

When I umount the USB drive 2.619
Then I find very few patterns in the guest's memory after 3 seconds 6.123

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

# read cache
When I mount the USB drive again 6.428
And I read the content of the test FS 0.687
Then patterns cover at least 99% of the test FS size in the guest's memory 3.836

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

When I umount the USB drive 0.780
Then I find very few patterns in the guest's memory after 3 seconds 6.118

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

After features/support/hooks.rb:326 2.380
After features/support/hooks.rb:100 0.000
50.952
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.954
And I prepare Tails for memory erasure tests 0.621
When I fill a 128 MiB file with a known pattern on the root filesystem 14.835
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.947
Then patterns cover at least 128 MiB in the guest's memory 3.740

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

When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 20.837

Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)

After features/support/hooks.rb:326 3.746
After features/support/hooks.rb:100 0.000
7:53.366
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 7:8.475
And I prepare Tails for memory erasure tests 0.517
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.936
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 21.422

Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)

After features/support/hooks.rb:326 3.635
After features/support/hooks.rb:100 0.013