Project Number Date
test_Tails_ISO_devel 3730 08 Mar 2025, 14:06

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 11:29.064 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.
22.150
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.101
And I prepare Tails for memory erasure tests 0.423
When I start a process allocating 128 MiB of memory with a known pattern 1.263
Then patterns cover at least 128 MiB in the guest's memory 3.507

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

When I kill the allocating process 1.007
Then I find very few patterns in the guest's memory after 5 seconds 7.846

Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)

After features/support/hooks.rb:330 0.828
After features/support/hooks.rb:100 0.000
23.672
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.028
And I prepare Tails for memory erasure tests 0.412
And I find very few patterns in the guest's memory 3.531

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.234
Then patterns cover at least 99% of the test FS size in the guest's memory 3.007

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

When I umount "/mnt" 0.636
Then I find very few patterns in the guest's memory after 3 seconds 5.820

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

After features/support/hooks.rb:330 0.803
After features/support/hooks.rb:100 0.000
45.755
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 7.865
And I prepare Tails for memory erasure tests 0.375
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.051
Then I find very few patterns in the guest's memory 2.809

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.648
Then patterns cover at least 75% of the test FS size in the guest's memory 3.268

Pattern coverage: 86.622% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.674
Then I find very few patterns in the guest's memory after 3 seconds 6.538

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

# read cache
When I mount the USB drive again 0.974
And I read the content of the test FS 0.418
Then patterns cover at least 99% of the test FS size in the guest's memory 3.420

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

When I umount the USB drive 0.567
Then I find very few patterns in the guest's memory after 3 seconds 6.143

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

After features/support/hooks.rb:330 0.829
After features/support/hooks.rb:100 0.000
1:13.843
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 7.934
And I prepare Tails for memory erasure tests 0.386
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.948
Then I find very few patterns in the guest's memory 2.405

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

# write cache
When I fill the USB drive with a known pattern 2.078
Then patterns cover at least 99% of the test FS size in the guest's memory 2.608

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

When I umount the USB drive 0.982
Then I find very few patterns in the guest's memory after 3 seconds 5.410

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

# read cache
When I mount the USB drive again 4.839
And I read the content of the test FS 0.460
Then patterns cover at least 99% of the test FS size in the guest's memory 2.726

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

When I umount the USB drive 0.762
Then I find very few patterns in the guest's memory after 3 seconds 5.298

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

After features/support/hooks.rb:330 1.209
After features/support/hooks.rb:100 0.000
55.657
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 7.876
And I prepare Tails for memory erasure tests 0.379
When I fill a 128 MiB file with a known pattern on the root filesystem 17.979
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 5.743
Then patterns cover at least 128 MiB in the guest's memory 2.825

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 20.839

Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)

After features/support/hooks.rb:330 3.541
After features/support/hooks.rb:100 0.000
7:47.985
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:1.826
And I prepare Tails for memory erasure tests 0.701
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.167
When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 21.273

Pattern coverage: 0.000% (0 MiB out of 874 MiB reference memory)

After features/support/hooks.rb:330 3.552
After features/support/hooks.rb:100 0.011