Project Number Date
test_Tails_ISO_devel 3594 21 Nov 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 11:17.984 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.
20.503
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.381
And I prepare Tails for memory erasure tests 0.493
When I start a process allocating 128 MiB of memory with a known pattern 1.297
Then patterns cover at least 128 MiB in the guest's memory 4.271

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

When I kill the allocating process 0.243
Then I find very few patterns in the guest's memory after 3 seconds 5.816

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

After features/support/hooks.rb:326 0.808
After features/support/hooks.rb:100 0.000
24.447
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.112
And I prepare Tails for memory erasure tests 0.396
And I find very few patterns in the guest's memory 2.999

Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.284
Then patterns cover at least 99% of the test FS size in the guest's memory 3.558

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

When I umount "/mnt" 0.729
Then I find very few patterns in the guest's memory after 3 seconds 6.366

Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)

After features/support/hooks.rb:326 1.016
After features/support/hooks.rb:100 0.000
49.839
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.063
And I prepare Tails for memory erasure tests 0.420
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.140
Then I find very few patterns in the guest's memory 3.603

Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.836
Then patterns cover at least 75% of the test FS size in the guest's memory 3.998

Pattern coverage: 87.785% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.603
Then I find very few patterns in the guest's memory after 3 seconds 6.287

Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)

# read cache
When I mount the USB drive again 0.255
And I read the content of the test FS 1.111
Then patterns cover at least 99% of the test FS size in the guest's memory 3.537

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

When I umount the USB drive 0.914
Then I find very few patterns in the guest's memory after 3 seconds 7.066

Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)

After features/support/hooks.rb:326 1.571
After features/support/hooks.rb:100 0.000
1:16.074
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.276
And I prepare Tails for memory erasure tests 0.470
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.762
Then I find very few patterns in the guest's memory 3.367

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.682
Then patterns cover at least 99% of the test FS size in the guest's memory 3.011

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

When I umount the USB drive 0.907
Then I find very few patterns in the guest's memory after 3 seconds 5.543

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

# read cache
When I mount the USB drive again 5.604
And I read the content of the test FS 0.538
Then patterns cover at least 99% of the test FS size in the guest's memory 3.231

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

When I umount the USB drive 0.747
Then I find very few patterns in the guest's memory after 3 seconds 5.931

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

After features/support/hooks.rb:326 2.498
After features/support/hooks.rb:100 0.000
51.147
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.249
And I prepare Tails for memory erasure tests 0.434
When I fill a 128 MiB file with a known pattern on the root filesystem 17.059
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.984
Then patterns cover at least 128 MiB in the guest's memory 2.560

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

When I trigger shutdown 0.021
Then I find very few patterns in the guest's memory after 20 seconds 20.837

Pattern coverage: 0.000% (0 MiB out of 868 MiB reference memory)

After features/support/hooks.rb:326 3.564
After features/support/hooks.rb:100 0.000
7:35.971
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 6:51.161
And I prepare Tails for memory erasure tests 0.453
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.113
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.229

Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)

After features/support/hooks.rb:326 3.549
After features/support/hooks.rb:100 0.022