Project Number Date
test_Tails_ISO_stable 5694 02 Jun 2025, 16:00

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 12:10.809 Passed
Tags: @product @slow @not_release_blocker
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.
Tags: @product @slow @not_release_blocker
27.525
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 9.000
And I prepare Tails for memory erasure tests 0.518
When I start a process allocating 128 MiB of memory with a known pattern 3.709
Then patterns cover at least 128 MiB in the guest's memory 4.432 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I kill the allocating process 0.964
Then I find very few patterns in the guest's memory after 5 seconds 8.900 
Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)
After features/support/hooks.rb:330 0.748
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
27.352
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 9.479
And I prepare Tails for memory erasure tests 0.635
And I find very few patterns in the guest's memory 4.419 
Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.502
Then patterns cover at least 99% of the test FS size in the guest's memory 4.152 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.488
Then I find very few patterns in the guest's memory after 3 seconds 6.674 
Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)
After features/support/hooks.rb:330 0.983
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
52.639
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 9.129
And I prepare Tails for memory erasure tests 0.526
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.214
Then I find very few patterns in the guest's memory 4.265 
Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.682
Then patterns cover at least 75% of the test FS size in the guest's memory 4.351 
Pattern coverage: 84.553% (107 MiB out of 127 MiB reference memory)
When I umount the USB drive 2.133
Then I find very few patterns in the guest's memory after 3 seconds 7.532 
Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)
# read cache
When I mount the USB drive again 0.220
And I read the content of the test FS 0.766
Then patterns cover at least 99% of the test FS size in the guest's memory 3.867 
Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.429
Then I find very few patterns in the guest's memory after 3 seconds 6.519 
Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)
After features/support/hooks.rb:330 1.079
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:24.335
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 8.845
And I prepare Tails for memory erasure tests 0.536
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 40.881
Then I find very few patterns in the guest's memory 3.047 
Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.921
Then patterns cover at least 99% of the test FS size in the guest's memory 3.504 
Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 1.309
Then I find very few patterns in the guest's memory after 3 seconds 7.403 
Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)
# read cache
When I mount the USB drive again 4.389
And I read the content of the test FS 0.637
Then patterns cover at least 99% of the test FS size in the guest's memory 3.569 
Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 2.198
Then I find very few patterns in the guest's memory after 3 seconds 6.089 
Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)
After features/support/hooks.rb:330 2.110
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
52.791
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 8.912
And I prepare Tails for memory erasure tests 0.390
When I fill a 128 MiB file with a known pattern on the root filesystem 17.647
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.855
Then patterns cover at least 128 MiB in the guest's memory 3.083 
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 20.889 
Pattern coverage: 0.000% (0 MiB out of 904 MiB reference memory)
After features/support/hooks.rb:330 3.552
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
8:6.163
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 7:20.030
And I prepare Tails for memory erasure tests 0.409
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.080
When I trigger shutdown 0.042
Then I find very few patterns in the guest's memory after 20 seconds 21.601 
Pattern coverage: 0.000% (0 MiB out of 915 MiB reference memory)
After features/support/hooks.rb:330 3.570
After features/support/hooks.rb:100 0.014