Project Number Date
test_Tails_ISO_devel 4459 18 Jun 2026, 11:30

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 8:23.498 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
18.600
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.020
Given I have started Tails from DVD without network and logged in 7.677
And I prepare Tails for memory erasure tests 0.460
When I start a process allocating 128 MiB of memory with a known pattern 1.291
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.963 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.192
Then I find very few patterns in the guest's memory after 5 seconds 7.013 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:339 0.680
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
18.531
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.095
Given I have started Tails from DVD without network and logged in 7.380
And I prepare Tails for memory erasure tests 0.465
And I find very few patterns in the guest's memory 1.850 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.655
Then patterns cover at least 99% of the test FS size in the guest's memory 1.954 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.316
Then I find very few patterns in the guest's memory after 3 seconds 4.908 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:339 0.786
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
33.777
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.028
Given I have started Tails from DVD without network and logged in 7.695
And I prepare Tails for memory erasure tests 0.360
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.399
Then I find very few patterns in the guest's memory 1.709 
Pattern coverage: 0.000% (0 MiB out of 1489 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 2.078 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.830
Then I find very few patterns in the guest's memory after 3 seconds 5.032 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# read cache
When I mount the USB drive again 0.159
And I read the content of the test FS 0.453
Then patterns cover at least 99% of the test FS size in the guest's memory 2.197 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.389
Then I find very few patterns in the guest's memory after 3 seconds 4.789 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:339 0.983
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
59.761
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.025
Given I have started Tails from DVD without network and logged in 7.442
And I prepare Tails for memory erasure tests 0.462
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.537
Then I find very few patterns in the guest's memory 1.655 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.289
Then patterns cover at least 99% of the test FS size in the guest's memory 1.870 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.613
Then I find very few patterns in the guest's memory after 3 seconds 5.072 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# read cache
When I mount the USB drive again 4.150
And I read the content of the test FS 0.426
Then patterns cover at least 99% of the test FS size in the guest's memory 2.119 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.453
Then I find very few patterns in the guest's memory after 3 seconds 4.668 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:339 1.006
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
57.775
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.025
Given I have started Tails from DVD without network and logged in 7.487
And I prepare Tails for memory erasure tests 0.381
When I fill a 128 MiB file with a known pattern on the root filesystem 25.472
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.301
Then patterns cover at least 128 MiB in the guest's memory 1.512 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 20.611 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:339 3.805
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
5:15.051
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.026
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:33.225
And I prepare Tails for memory erasure tests 0.427
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.364
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.029 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
After features/support/hooks.rb:339 3.819
After features/support/hooks.rb:108 0.093