Project Number Date
test_Tails_ISO_stable 4913 26 Jun 2024, 12:40

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 53 0 0 0 0 53 6 0 6 10:57.192 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.
20.213
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.397
And I prepare Tails for memory erasure tests 0.519
When I start a process allocating 128 MiB of memory with a known pattern 2.370
Then patterns cover at least 128 MiB in the guest's memory 3.437

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

When I kill the allocating process 1.230
Then I find very few patterns in the guest's memory 4.257

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

After features/support/hooks.rb:326 1.579
After features/support/hooks.rb:100 0.000
26.139
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.015
And I prepare Tails for memory erasure tests 0.683
And I find very few patterns in the guest's memory 4.569

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.291
Then patterns cover at least 99% of the test FS size in the guest's memory 3.989

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

When I umount "/mnt" 1.825
Then I find very few patterns in the guest's memory 4.764

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

After features/support/hooks.rb:326 0.916
After features/support/hooks.rb:100 0.000
49.181
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.817
And I prepare Tails for memory erasure tests 0.508
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.460
Then I find very few patterns in the guest's memory 4.319

Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.774
Then patterns cover at least 86% of the test FS size in the guest's memory 3.461

Pattern coverage: 91.355% (116 MiB out of 127 MiB reference memory)

When I umount the USB drive 5.862
Then I find very few patterns in the guest's memory 3.805

Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)

# read cache
When I mount the USB drive again 0.227
And I read the content of the test FS 0.670
Then patterns cover at least 99% of the test FS size in the guest's memory 3.568

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

When I umount the USB drive 0.795
Then I find very few patterns in the guest's memory 4.909

Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)

After features/support/hooks.rb:326 3.333
After features/support/hooks.rb:100 0.000
1:12.643
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.426
And I prepare Tails for memory erasure tests 0.506
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.459
Then I find very few patterns in the guest's memory 3.826

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

# write cache
When I fill the USB drive with a known pattern 1.948
Then patterns cover at least 99% of the test FS size in the guest's memory 3.351

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

When I umount the USB drive 1.192
Then I find very few patterns in the guest's memory 3.308

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

# read cache
When I mount the USB drive again 5.098
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 3.418

Pattern coverage: 106.117% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 1.613
Then I find very few patterns in the guest's memory 3.828

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

After features/support/hooks.rb:326 0.963
After features/support/hooks.rb:100 0.000
52.601
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.424
And I prepare Tails for memory erasure tests 0.488
When I fill a 128 MiB file with a known pattern on the root filesystem 16.967
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.817
Then patterns cover at least 128 MiB in the guest's memory 3.047

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

When I trigger shutdown 0.013
And I wait 20 seconds 20.016

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.825

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

After features/support/hooks.rb:326 3.522
After features/support/hooks.rb:100 0.000
7:16.413
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 6:31.902
And I prepare Tails for memory erasure tests 0.384
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.917
When I trigger shutdown 0.011
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.176

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

After features/support/hooks.rb:326 3.509
After features/support/hooks.rb:100 0.020