Project Number Date
test_Tails_ISO_stable 5179 13 Oct 2024, 08:48

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 11:13.370 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.
22.208
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.091
And I prepare Tails for memory erasure tests 0.404
When I start a process allocating 128 MiB of memory with a known pattern 2.632
Then patterns cover at least 128 MiB in the guest's memory 3.450

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

When I kill the allocating process 1.407
Then I find very few patterns in the guest's memory after 3 seconds 6.221

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

After features/support/hooks.rb:326 1.160
After features/support/hooks.rb:100 0.000
23.388
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.078
And I prepare Tails for memory erasure tests 0.398
And I find very few patterns in the guest's memory 2.996

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.886
Then patterns cover at least 99% of the test FS size in the guest's memory 3.182

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

When I umount "/mnt" 0.997
Then I find very few patterns in the guest's memory after 3 seconds 5.849

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

After features/support/hooks.rb:326 1.848
After features/support/hooks.rb:100 0.000
46.057
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.126
And I prepare Tails for memory erasure tests 0.424
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.013
Then I find very few patterns in the guest's memory 2.833

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

# write cache
When I fill the USB drive with a known pattern 2.562
Then patterns cover at least 75% of the test FS size in the guest's memory 3.150

Pattern coverage: 86.484% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 2.860
Then I find very few patterns in the guest's memory after 3 seconds 5.859

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

# read cache
When I mount the USB drive again 0.236
And I read the content of the test FS 0.514
Then patterns cover at least 99% of the test FS size in the guest's memory 3.177

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

When I umount the USB drive 0.488
Then I find very few patterns in the guest's memory after 3 seconds 5.808

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

After features/support/hooks.rb:326 0.766
After features/support/hooks.rb:100 0.000
1:26.838
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 10.147
And I prepare Tails for memory erasure tests 1.378
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 42.821
Then I find very few patterns in the guest's memory 2.748

Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.968
Then patterns cover at least 99% of the test FS size in the guest's memory 2.895

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

When I umount the USB drive 2.503
Then I find very few patterns in the guest's memory after 3 seconds 5.368

Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)

# read cache
When I mount the USB drive again 6.444
And I read the content of the test FS 0.476
Then patterns cover at least 99% of the test FS size in the guest's memory 2.990

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

When I umount the USB drive 0.832
Then I find very few patterns in the guest's memory after 3 seconds 5.260

Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)

After features/support/hooks.rb:326 0.975
After features/support/hooks.rb:100 0.000
48.995
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 7.972
And I prepare Tails for memory erasure tests 0.374
When I fill a 128 MiB file with a known pattern on the root filesystem 15.046
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.809
Then patterns cover at least 128 MiB in the guest's memory 2.593

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

When I trigger shutdown 0.025
Then I find very few patterns in the guest's memory after 20 seconds 21.173

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

After features/support/hooks.rb:326 3.505
After features/support/hooks.rb:100 0.000
7:25.882
Before features/support/hooks.rb:269 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:43.267
And I prepare Tails for memory erasure tests 0.408
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.081
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.115

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

After features/support/hooks.rb:326 3.507
After features/support/hooks.rb:100 0.012