Project Number Date
test_Tails_ISO_devel 3634 06 Jan 2025, 12:26

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 11:16.211 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.
22.489
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.125
And I prepare Tails for memory erasure tests 0.459
When I start a process allocating 128 MiB of memory with a known pattern 1.259
Then patterns cover at least 128 MiB in the guest's memory 3.353

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

When I kill the allocating process 2.589
Then I find very few patterns in the guest's memory after 3 seconds 6.702

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

After features/support/hooks.rb:326 0.857
After features/support/hooks.rb:100 0.000
25.335
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.125
And I prepare Tails for memory erasure tests 0.469
And I find very few patterns in the guest's memory 3.277

Pattern coverage: 0.000% (0 MiB out of 862 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.877
Then patterns cover at least 99% of the test FS size in the guest's memory 3.323

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

When I umount "/mnt" 0.632
Then I find very few patterns in the guest's memory after 3 seconds 6.628

Pattern coverage: 0.000% (0 MiB out of 862 MiB reference memory)

After features/support/hooks.rb:326 1.096
After features/support/hooks.rb:100 0.000
56.588
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.663
And I prepare Tails for memory erasure tests 0.446
When I plug and mount a 128 MiB USB drive with a vfat filesystem 15.760
Then I find very few patterns in the guest's memory 3.339

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

# write cache
When I fill the USB drive with a known pattern 3.652
Then patterns cover at least 75% of the test FS size in the guest's memory 4.201

Pattern coverage: 88.076% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.543
Then I find very few patterns in the guest's memory after 3 seconds 6.502

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

# read cache
When I mount the USB drive again 0.246
And I read the content of the test FS 0.615
Then patterns cover at least 99% of the test FS size in the guest's memory 3.794

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

When I umount the USB drive 0.359
Then I find very few patterns in the guest's memory after 3 seconds 6.463

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

After features/support/hooks.rb:326 0.817
After features/support/hooks.rb:100 0.000
1:14.369
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.778
And I prepare Tails for memory erasure tests 0.380
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.047
Then I find very few patterns in the guest's memory 2.496

Pattern coverage: 0.000% (0 MiB out of 864 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.811
Then patterns cover at least 99% of the test FS size in the guest's memory 2.934

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

When I umount the USB drive 1.030
Then I find very few patterns in the guest's memory after 3 seconds 5.406

Pattern coverage: 0.000% (0 MiB out of 864 MiB reference memory)

# read cache
When I mount the USB drive again 5.112
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 3.018

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

When I umount the USB drive 0.816
Then I find very few patterns in the guest's memory after 3 seconds 6.053

Pattern coverage: 0.000% (0 MiB out of 864 MiB reference memory)

After features/support/hooks.rb:326 0.815
After features/support/hooks.rb:100 0.000
50.197
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.101
And I prepare Tails for memory erasure tests 0.430
When I fill a 128 MiB file with a known pattern on the root filesystem 16.179
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.505
Then patterns cover at least 128 MiB in the guest's memory 2.983

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

When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 20.981

Pattern coverage: 0.000% (0 MiB out of 859 MiB reference memory)

After features/support/hooks.rb:326 3.518
After features/support/hooks.rb:100 0.000
7:27.230
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 6:42.744
And I prepare Tails for memory erasure tests 0.435
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.924
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.112

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

After features/support/hooks.rb:326 3.507
After features/support/hooks.rb:100 0.013