Project Number Date
test_Tails_ISO_devel 3497 30 Aug 2024, 12:39

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 11:55.971 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.
21.928
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.349
And I prepare Tails for memory erasure tests 0.470
When I start a process allocating 128 MiB of memory with a known pattern 2.359
Then patterns cover at least 128 MiB in the guest's memory 3.401

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

When I kill the allocating process 1.301
Then I find very few patterns in the guest's memory after 3 seconds 6.045

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

After features/support/hooks.rb:326 1.112
After features/support/hooks.rb:100 0.000
26.274
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.002
And I prepare Tails for memory erasure tests 0.493
And I find very few patterns in the guest's memory 3.170

Pattern coverage: 0.000% (0 MiB out of 861 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.082
Then patterns cover at least 99% of the test FS size in the guest's memory 4.171

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

When I umount "/mnt" 0.971
Then I find very few patterns in the guest's memory after 3 seconds 6.382

Pattern coverage: 0.000% (0 MiB out of 861 MiB reference memory)

After features/support/hooks.rb:326 1.942
After features/support/hooks.rb:100 0.000
52.281
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.132
And I prepare Tails for memory erasure tests 0.554
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.405
Then I find very few patterns in the guest's memory 4.052

Pattern coverage: 0.000% (0 MiB out of 869 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.005
Then patterns cover at least 75% of the test FS size in the guest's memory 4.273

Pattern coverage: 89.187% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 2.520
Then I find very few patterns in the guest's memory after 3 seconds 6.533

Pattern coverage: 0.000% (0 MiB out of 869 MiB reference memory)

# read cache
When I mount the USB drive again 0.352
And I read the content of the test FS 0.919
Then patterns cover at least 99% of the test FS size in the guest's memory 3.728

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

When I umount the USB drive 1.026
Then I find very few patterns in the guest's memory after 3 seconds 5.776

Pattern coverage: 0.000% (0 MiB out of 869 MiB reference memory)

After features/support/hooks.rb:326 0.883
After features/support/hooks.rb:100 0.000
1:15.693
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.210
And I prepare Tails for memory erasure tests 0.436
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.516
Then I find very few patterns in the guest's memory 3.440

Pattern coverage: 0.000% (0 MiB out of 867 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.097
Then patterns cover at least 99% of the test FS size in the guest's memory 3.014

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

When I umount the USB drive 1.472
Then I find very few patterns in the guest's memory after 3 seconds 5.440

Pattern coverage: 0.000% (0 MiB out of 867 MiB reference memory)

# read cache
When I mount the USB drive again 6.435
And I read the content of the test FS 0.533
Then patterns cover at least 99% of the test FS size in the guest's memory 3.280

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

When I umount the USB drive 0.765
Then I find very few patterns in the guest's memory after 3 seconds 6.050

Pattern coverage: 0.000% (0 MiB out of 867 MiB reference memory)

After features/support/hooks.rb:326 1.084
After features/support/hooks.rb:100 0.000
55.024
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 12.660
And I prepare Tails for memory erasure tests 0.532
When I fill a 128 MiB file with a known pattern on the root filesystem 16.395
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.894
Then patterns cover at least 128 MiB in the guest's memory 2.775

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

When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 20.752

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

After features/support/hooks.rb:326 3.546
After features/support/hooks.rb:100 0.000
8:4.768
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 7:17.534
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 25.478
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.309

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

After features/support/hooks.rb:326 3.538
After features/support/hooks.rb:100 0.010