Project Number Date
test_Tails_ISO_stable 5345 18 Dec 2024, 19:23

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 11:17.633 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.
23.138
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.763
And I prepare Tails for memory erasure tests 0.421
When I start a process allocating 128 MiB of memory with a known pattern 2.369
Then patterns cover at least 128 MiB in the guest's memory 3.993

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

When I kill the allocating process 1.245
Then I find very few patterns in the guest's memory after 3 seconds 6.346

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

After features/support/hooks.rb:326 0.866
After features/support/hooks.rb:100 0.000
24.882
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.283
And I prepare Tails for memory erasure tests 0.471
And I find very few patterns in the guest's memory 3.128

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.056
Then patterns cover at least 99% of the test FS size in the guest's memory 3.740

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

When I umount "/mnt" 1.044
Then I find very few patterns in the guest's memory after 3 seconds 6.158

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

After features/support/hooks.rb:326 1.113
After features/support/hooks.rb:100 0.000
1:3.196
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 21.411
And I prepare Tails for memory erasure tests 0.459
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.113
Then I find very few patterns in the guest's memory 3.806

Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.137
Then patterns cover at least 75% of the test FS size in the guest's memory 4.292

Pattern coverage: 86.616% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 2.070
Then I find very few patterns in the guest's memory after 3 seconds 6.128

Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)

# read cache
When I mount the USB drive again 0.303
And I read the content of the test FS 0.782
Then patterns cover at least 99% of the test FS size in the guest's memory 3.849

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

When I umount the USB drive 0.590
Then I find very few patterns in the guest's memory after 3 seconds 6.250

Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)

After features/support/hooks.rb:326 0.814
After features/support/hooks.rb:100 0.000
1:17.293
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.172
And I prepare Tails for memory erasure tests 0.442
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.591
Then I find very few patterns in the guest's memory 4.060

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.901
Then patterns cover at least 99% of the test FS size in the guest's memory 4.182

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

When I umount the USB drive 1.141
Then I find very few patterns in the guest's memory after 3 seconds 5.707

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

# read cache
When I mount the USB drive again 6.012
And I read the content of the test FS 0.535
Then patterns cover at least 99% of the test FS size in the guest's memory 3.057

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

When I umount the USB drive 0.794
Then I find very few patterns in the guest's memory after 3 seconds 5.695

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

After features/support/hooks.rb:326 0.776
After features/support/hooks.rb:100 0.000
53.335
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.066
And I prepare Tails for memory erasure tests 0.409
When I fill a 128 MiB file with a known pattern on the root filesystem 19.061
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.878
Then patterns cover at least 128 MiB in the guest's memory 3.034

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

When I trigger shutdown 0.017
Then I find very few patterns in the guest's memory after 20 seconds 20.867

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:326 3.746
After features/support/hooks.rb:100 0.000
7:15.786
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 6:31.444
And I prepare Tails for memory erasure tests 0.377
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.426
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.525

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

After features/support/hooks.rb:326 3.576
After features/support/hooks.rb:100 0.012