Project Number Date
test_Tails_ISO_20522-ocr-more 53 03 Feb 2025, 21:53

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 12:11.341 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.
29.637
Before features/support/hooks.rb:269 0.004
Given I have started Tails from DVD without network and logged in 8.781
And I prepare Tails for memory erasure tests 0.727
When I start a process allocating 128 MiB of memory with a known pattern 2.606
Then patterns cover at least 128 MiB in the guest's memory 5.185

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

When I kill the allocating process 2.030
Then I find very few patterns in the guest's memory after 5 seconds 10.306

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

After features/support/hooks.rb:326 1.615
After features/support/hooks.rb:100 0.000
26.947
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.891
And I prepare Tails for memory erasure tests 0.501
And I find very few patterns in the guest's memory 3.570

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.943
Then patterns cover at least 99% of the test FS size in the guest's memory 4.051

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

When I umount "/mnt" 0.857
Then I find very few patterns in the guest's memory after 3 seconds 7.131

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

After features/support/hooks.rb:326 1.944
After features/support/hooks.rb:100 0.000
55.157
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.599
And I prepare Tails for memory erasure tests 0.785
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.374
Then I find very few patterns in the guest's memory 4.110

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.945
Then patterns cover at least 75% of the test FS size in the guest's memory 4.172

Pattern coverage: 88.039% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 2.121
Then I find very few patterns in the guest's memory after 3 seconds 6.851

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

# read cache
When I mount the USB drive again 0.433
And I read the content of the test FS 2.638
Then patterns cover at least 99% of the test FS size in the guest's memory 4.486

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

When I umount the USB drive 0.764
Then I find very few patterns in the guest's memory after 3 seconds 6.872

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

After features/support/hooks.rb:326 0.854
After features/support/hooks.rb:100 0.000
1:23.653
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.189
And I prepare Tails for memory erasure tests 0.646
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.597
Then I find very few patterns in the guest's memory 3.069

Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.082
Then patterns cover at least 99% of the test FS size in the guest's memory 3.286

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

When I umount the USB drive 1.390
Then I find very few patterns in the guest's memory after 3 seconds 6.332

Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)

# read cache
When I mount the USB drive again 6.320
And I read the content of the test FS 1.993
Then patterns cover at least 99% of the test FS size in the guest's memory 3.848

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

When I umount the USB drive 1.550
Then I find very few patterns in the guest's memory after 3 seconds 6.346

Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)

After features/support/hooks.rb:326 1.183
After features/support/hooks.rb:100 0.000
55.057
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.116
And I prepare Tails for memory erasure tests 0.964
When I fill a 128 MiB file with a known pattern on the root filesystem 15.520
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.695
Then patterns cover at least 128 MiB in the guest's memory 6.540

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 21.202

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

After features/support/hooks.rb:326 3.553
After features/support/hooks.rb:100 0.000
8:0.888
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 7:14.233
And I prepare Tails for memory erasure tests 0.978
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.376
When I trigger shutdown 0.018
Then I find very few patterns in the guest's memory after 20 seconds 21.281

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

After features/support/hooks.rb:326 3.534
After features/support/hooks.rb:100 0.011