Project Number Date
test_Tails_ISO_stable 5940 10 Nov 2025, 12:12

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 14:12.849 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
48.959
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 9.049
And I prepare Tails for memory erasure tests 0.416
When I start a process allocating 128 MiB of memory with a known pattern 2.276
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.020 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.217
Then I find very few patterns in the guest's memory after 5 seconds 21.978 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
After features/support/hooks.rb:331 1.044
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:13.723
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.006
Given I have started Tails from DVD without network and logged in 11.279
And I prepare Tails for memory erasure tests 0.497
And I find very few patterns in the guest's memory 24.812 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.160
Then patterns cover at least 99% of the test FS size in the guest's memory 16.638 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.541
Then I find very few patterns in the guest's memory after 3 seconds 17.794 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
After features/support/hooks.rb:331 0.747
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:43.983
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 8.701
And I prepare Tails for memory erasure tests 0.427
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.438
Then I find very few patterns in the guest's memory 16.339 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.792
Then patterns cover at least 75% of the test FS size in the guest's memory 19.183 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.067
Then I find very few patterns in the guest's memory after 3 seconds 16.140 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
# read cache
When I mount the USB drive again 0.200
And I read the content of the test FS 0.875
Then patterns cover at least 99% of the test FS size in the guest's memory 14.778 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.539
Then I find very few patterns in the guest's memory after 3 seconds 16.496 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:331 1.097
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:12.345
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 8.489
And I prepare Tails for memory erasure tests 0.461
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.676
Then I find very few patterns in the guest's memory 18.676 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 4.321
Then patterns cover at least 99% of the test FS size in the guest's memory 14.756 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.767
Then I find very few patterns in the guest's memory after 3 seconds 17.024 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
# read cache
When I mount the USB drive again 4.760
And I read the content of the test FS 0.489
Then patterns cover at least 99% of the test FS size in the guest's memory 15.160 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.630
Then I find very few patterns in the guest's memory after 3 seconds 16.129 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
After features/support/hooks.rb:331 0.661
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.317
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 8.909
And I prepare Tails for memory erasure tests 0.527
When I fill a 128 MiB file with a known pattern on the root filesystem 10.790
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.158
Then patterns cover at least 128 MiB in the guest's memory 10.168 
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 23.752 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
After features/support/hooks.rb:331 3.918
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:16.521
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 6:39.079
And I prepare Tails for memory erasure tests 0.477
When I fill a 128 MiB file with a known pattern on the persistent filesystem 13.389
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 23.560 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
After features/support/hooks.rb:331 3.645
After features/support/hooks.rb:100 0.016