Project Number Date
test_Tails_ISO_stable 5182 14 Oct 2024, 12:38

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 11:33.118 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.
24.010
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.408
And I prepare Tails for memory erasure tests 0.578
When I start a process allocating 128 MiB of memory with a known pattern 1.472
Then patterns cover at least 128 MiB in the guest's memory 5.392

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

When I kill the allocating process 1.390
Then I find very few patterns in the guest's memory after 3 seconds 6.766

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

After features/support/hooks.rb:326 1.400
After features/support/hooks.rb:100 0.000
27.129
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.310
And I prepare Tails for memory erasure tests 0.637
And I find very few patterns in the guest's memory 3.749

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.092
Then patterns cover at least 99% of the test FS size in the guest's memory 4.302

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

When I umount "/mnt" 1.204
Then I find very few patterns in the guest's memory after 3 seconds 6.832

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

After features/support/hooks.rb:326 0.763
After features/support/hooks.rb:100 0.000
49.670
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.112
And I prepare Tails for memory erasure tests 0.624
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.998
Then I find very few patterns in the guest's memory 3.805

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.565
Then patterns cover at least 75% of the test FS size in the guest's memory 4.249

Pattern coverage: 87.975% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.417
Then I find very few patterns in the guest's memory after 3 seconds 6.516

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

# read cache
When I mount the USB drive again 0.389
And I read the content of the test FS 1.247
Then patterns cover at least 99% of the test FS size in the guest's memory 4.041

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

When I umount the USB drive 0.707
Then I find very few patterns in the guest's memory after 3 seconds 5.991

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

After features/support/hooks.rb:326 1.466
After features/support/hooks.rb:100 0.000
1:16.186
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.197
And I prepare Tails for memory erasure tests 0.642
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.519
Then I find very few patterns in the guest's memory 2.598

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

# write cache
When I fill the USB drive with a known pattern 2.092
Then patterns cover at least 99% of the test FS size in the guest's memory 2.968

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

When I umount the USB drive 1.732
Then I find very few patterns in the guest's memory after 3 seconds 5.475

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

# read cache
When I mount the USB drive again 6.527
And I read the content of the test FS 0.566
Then patterns cover at least 99% of the test FS size in the guest's memory 3.269

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

When I umount the USB drive 0.614
Then I find very few patterns in the guest's memory after 3 seconds 5.981

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

After features/support/hooks.rb:326 0.991
After features/support/hooks.rb:100 0.000
50.701
Before features/support/hooks.rb:269 0.004
Given I have started Tails from DVD without network and logged in 9.177
And I prepare Tails for memory erasure tests 0.533
When I fill a 128 MiB file with a known pattern on the root filesystem 14.631
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.332
Then patterns cover at least 128 MiB in the guest's memory 3.177

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

When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 20.835

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

After features/support/hooks.rb:326 3.509
After features/support/hooks.rb:100 0.000
7:45.420
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 6:58.881
And I prepare Tails for memory erasure tests 0.475
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.762
When I trigger shutdown 0.021
Then I find very few patterns in the guest's memory after 20 seconds 21.279

Pattern coverage: 0.000% (0 MiB out of 899 MiB reference memory)

After features/support/hooks.rb:326 3.483
After features/support/hooks.rb:100 0.012