Project Number Date
test_Tails_ISO_devel 3553 18 Oct 2024, 12:53

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 12:14.821 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.
24.234
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.075
And I prepare Tails for memory erasure tests 0.401
When I start a process allocating 128 MiB of memory with a known pattern 2.265
Then patterns cover at least 128 MiB in the guest's memory 4.936

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

When I kill the allocating process 1.765
Then I find very few patterns in the guest's memory after 3 seconds 6.790

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

After features/support/hooks.rb:326 0.881
After features/support/hooks.rb:100 0.000
27.252
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.494
And I prepare Tails for memory erasure tests 0.541
And I find very few patterns in the guest's memory 3.649

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.317
Then patterns cover at least 99% of the test FS size in the guest's memory 4.314

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

When I umount "/mnt" 1.234
Then I find very few patterns in the guest's memory after 3 seconds 6.701

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

After features/support/hooks.rb:326 0.764
After features/support/hooks.rb:100 0.000
54.719
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.887
And I prepare Tails for memory erasure tests 0.429
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.110
Then I find very few patterns in the guest's memory 4.404

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

# write cache
When I fill the USB drive with a known pattern 2.642
Then patterns cover at least 75% of the test FS size in the guest's memory 4.318

Pattern coverage: 89.270% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 2.001
Then I find very few patterns in the guest's memory after 3 seconds 6.920

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

# read cache
When I mount the USB drive again 0.329
And I read the content of the test FS 2.611
Then patterns cover at least 99% of the test FS size in the guest's memory 4.514

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

When I umount the USB drive 0.807
Then I find very few patterns in the guest's memory after 3 seconds 6.741

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

After features/support/hooks.rb:326 0.894
After features/support/hooks.rb:100 0.000
1:20.229
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.375
And I prepare Tails for memory erasure tests 0.484
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.620
Then I find very few patterns in the guest's memory 3.140

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

# write cache
When I fill the USB drive with a known pattern 2.000
Then patterns cover at least 99% of the test FS size in the guest's memory 3.596

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

When I umount the USB drive 1.442
Then I find very few patterns in the guest's memory after 3 seconds 6.268

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

# read cache
When I mount the USB drive again 6.299
And I read the content of the test FS 2.485
Then patterns cover at least 99% of the test FS size in the guest's memory 3.583

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

When I umount the USB drive 0.847
Then I find very few patterns in the guest's memory after 3 seconds 6.083

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

After features/support/hooks.rb:326 1.081
After features/support/hooks.rb:100 0.000
57.318
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.135
And I prepare Tails for memory erasure tests 0.447
When I fill a 128 MiB file with a known pattern on the root filesystem 17.609
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 7.058
Then patterns cover at least 128 MiB in the guest's memory 3.218

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 20.834

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

After features/support/hooks.rb:326 3.558
After features/support/hooks.rb:100 0.000
8:11.066
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 7:25.602
And I prepare Tails for memory erasure tests 0.505
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.589
When I trigger shutdown 0.017
Then I find very few patterns in the guest's memory after 20 seconds 21.351

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

After features/support/hooks.rb:326 3.549
After features/support/hooks.rb:100 0.011