Project Number Date
test_Tails_ISO_stable 6311 20 Apr 2026, 13:57

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 7:34.530 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
17.512
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.708
And I prepare Tails for memory erasure tests 0.435
When I start a process allocating 128 MiB of memory with a known pattern 1.225
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.141 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.190
Then I find very few patterns in the guest's memory after 5 seconds 6.811 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 0.781
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.415
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 6.806
And I prepare Tails for memory erasure tests 0.428
And I find very few patterns in the guest's memory 2.046 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.559
Then patterns cover at least 99% of the test FS size in the guest's memory 2.375 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.338
Then I find very few patterns in the guest's memory after 3 seconds 4.860 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 0.855
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
35.889
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.790
And I prepare Tails for memory erasure tests 0.444
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.585
Then I find very few patterns in the guest's memory 2.412 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.219
Then patterns cover at least 75% of the test FS size in the guest's memory 2.058 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.669
Then I find very few patterns in the guest's memory after 3 seconds 5.571 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 0.171
And I read the content of the test FS 0.648
Then patterns cover at least 99% of the test FS size in the guest's memory 2.948 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.511
Then I find very few patterns in the guest's memory after 3 seconds 5.857 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 0.950
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:2.216
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.736
And I prepare Tails for memory erasure tests 0.380
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.814
Then I find very few patterns in the guest's memory 1.900 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.065
Then patterns cover at least 99% of the test FS size in the guest's memory 1.792 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.489
Then I find very few patterns in the guest's memory after 3 seconds 5.039 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# read cache
When I mount the USB drive again 4.438
And I read the content of the test FS 0.306
Then patterns cover at least 99% of the test FS size in the guest's memory 2.047 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.552
Then I find very few patterns in the guest's memory after 3 seconds 4.652 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 1.105
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
45.930
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 7.065
And I prepare Tails for memory erasure tests 0.875
When I fill a 128 MiB file with a known pattern on the root filesystem 12.871
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.247
Then patterns cover at least 128 MiB in the guest's memory 2.331 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.533 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 3.755
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:34.566
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 4:1.698
And I prepare Tails for memory erasure tests 0.478
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.958
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 21.415 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:331 3.716
After features/support/hooks.rb:100 0.011