Project Number Date
test_Tails_ISO_stable 6002 11 Dec 2025, 13:53

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 14:52.937 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
45.979
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 8.152
And I prepare Tails for memory erasure tests 0.375
When I start a process allocating 128 MiB of memory with a known pattern 1.175
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.012 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.156
Then I find very few patterns in the guest's memory after 5 seconds 21.106 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 0.901
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.046
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 7.962
And I prepare Tails for memory erasure tests 0.451
And I find very few patterns in the guest's memory 14.420 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 0.605
Then patterns cover at least 99% of the test FS size in the guest's memory 15.068 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.106
Then I find very few patterns in the guest's memory after 3 seconds 17.430 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 0.909
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
3:0.969
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 7.834
And I prepare Tails for memory erasure tests 0.366
When I plug and mount a 128 MiB USB drive with a vfat filesystem 13.330
Then I find very few patterns in the guest's memory 18.136 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.100
Then patterns cover at least 75% of the test FS size in the guest's memory 17.824 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.233
Then I find very few patterns in the guest's memory after 3 seconds 24.131 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# read cache
When I mount the USB drive again 0.167
And I read the content of the test FS 0.469
Then patterns cover at least 99% of the test FS size in the guest's memory 41.267 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.163
Then I find very few patterns in the guest's memory after 3 seconds 55.944 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 5.335
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
3:18.830
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 19.656
And I prepare Tails for memory erasure tests 0.388
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 25.154
Then I find very few patterns in the guest's memory 34.198 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.008
Then patterns cover at least 99% of the test FS size in the guest's memory 32.657 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.427
Then I find very few patterns in the guest's memory after 3 seconds 35.805 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# read cache
When I mount the USB drive again 2.169
And I read the content of the test FS 0.343
Then patterns cover at least 99% of the test FS size in the guest's memory 24.336 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 1.070
Then I find very few patterns in the guest's memory after 3 seconds 20.615 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 2.456
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
55.232
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 10.071
And I prepare Tails for memory erasure tests 0.370
When I fill a 128 MiB file with a known pattern on the root filesystem 9.553
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.321
Then patterns cover at least 128 MiB in the guest's memory 12.177 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 22.728 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 3.475
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
5:55.878
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 5:23.547
And I prepare Tails for memory erasure tests 0.362
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.917
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 23.042 
Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)
After features/support/hooks.rb:331 3.994
After features/support/hooks.rb:100 0.012