Project Number Date
test_Tails_ISO_feature-arti 58 14 May 2025, 16:34

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 13:2.249 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.
26.878
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 8.855
And I prepare Tails for memory erasure tests 0.793
When I start a process allocating 128 MiB of memory with a known pattern 2.427
Then patterns cover at least 128 MiB in the guest's memory 4.455

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

When I kill the allocating process 0.639
Then I find very few patterns in the guest's memory after 5 seconds 9.706

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

After features/support/hooks.rb:330 0.903
After features/support/hooks.rb:100 0.000
28.753
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.007
Given I have started Tails from DVD without network and logged in 9.704
And I prepare Tails for memory erasure tests 0.516
And I find very few patterns in the guest's memory 4.190

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.124
Then patterns cover at least 99% of the test FS size in the guest's memory 4.370

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

When I umount "/mnt" 0.650
Then I find very few patterns in the guest's memory after 3 seconds 7.195

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:330 0.904
After features/support/hooks.rb:100 0.000
1:0.594
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 9.319
And I prepare Tails for memory erasure tests 0.661
When I plug and mount a 128 MiB USB drive with a vfat filesystem 11.927
Then I find very few patterns in the guest's memory 3.968

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.627
Then patterns cover at least 75% of the test FS size in the guest's memory 5.589

Pattern coverage: 89.775% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.743
Then I find very few patterns in the guest's memory after 3 seconds 7.167

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

# read cache
When I mount the USB drive again 0.284
And I read the content of the test FS 3.199
Then patterns cover at least 99% of the test FS size in the guest's memory 4.880

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

When I umount the USB drive 0.818
Then I find very few patterns in the guest's memory after 3 seconds 7.407

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

After features/support/hooks.rb:330 1.180
After features/support/hooks.rb:100 0.000
1:43.135
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 9.784
And I prepare Tails for memory erasure tests 0.960
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 53.231
Then I find very few patterns in the guest's memory 4.444

Pattern coverage: 0.000% (0 MiB out of 904 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.468
Then patterns cover at least 99% of the test FS size in the guest's memory 4.390

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

When I umount the USB drive 1.082
Then I find very few patterns in the guest's memory after 3 seconds 7.323

Pattern coverage: 0.000% (0 MiB out of 904 MiB reference memory)

# read cache
When I mount the USB drive again 6.010
And I read the content of the test FS 1.423
Then patterns cover at least 99% of the test FS size in the guest's memory 4.237

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

When I umount the USB drive 0.719
Then I find very few patterns in the guest's memory after 3 seconds 7.057

Pattern coverage: 0.000% (0 MiB out of 904 MiB reference memory)

After features/support/hooks.rb:330 1.341
After features/support/hooks.rb:100 0.000
54.553
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 9.516
And I prepare Tails for memory erasure tests 0.589
When I fill a 128 MiB file with a known pattern on the root filesystem 17.330
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.675
Then patterns cover at least 128 MiB in the guest's memory 3.454

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 20.973

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

After features/support/hooks.rb:330 3.533
After features/support/hooks.rb:100 0.000
8:28.335
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:43.350
And I prepare Tails for memory erasure tests 0.631
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.788
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.552

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:330 3.575
After features/support/hooks.rb:100 0.016