Project Number Date
test_Tails_ISO_stable 6415 01 Jun 2026, 15:11

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 7:42.823 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
17.334
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.545
And I prepare Tails for memory erasure tests 0.342
When I start a process allocating 128 MiB of memory with a known pattern 1.280
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.013 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.172
Then I find very few patterns in the guest's memory after 5 seconds 6.979 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:335 0.909
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.687
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.471
And I prepare Tails for memory erasure tests 0.334
And I find very few patterns in the guest's memory 1.997 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.548
Then patterns cover at least 99% of the test FS size in the guest's memory 2.181 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.291
Then I find very few patterns in the guest's memory after 3 seconds 4.863 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:335 1.072
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
32.752
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.607
And I prepare Tails for memory erasure tests 0.379
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.435
Then I find very few patterns in the guest's memory 1.806 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.627
Then patterns cover at least 75% of the test FS size in the guest's memory 2.240 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.713
Then I find very few patterns in the guest's memory after 3 seconds 4.800 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# read cache
When I mount the USB drive again 0.145
And I read the content of the test FS 0.462
Then patterns cover at least 99% of the test FS size in the guest's memory 2.121 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.343
Then I find very few patterns in the guest's memory after 3 seconds 5.068 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:335 1.030
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
59.353
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.791
And I prepare Tails for memory erasure tests 0.350
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.562
Then I find very few patterns in the guest's memory 1.910 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.399
Then patterns cover at least 99% of the test FS size in the guest's memory 2.099 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.567
Then I find very few patterns in the guest's memory after 3 seconds 4.614 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# read cache
When I mount the USB drive again 3.855
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 1.806 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.406
Then I find very few patterns in the guest's memory after 3 seconds 4.681 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:335 0.995
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
54.823
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.733
And I prepare Tails for memory erasure tests 0.394
When I fill a 128 MiB file with a known pattern on the root filesystem 23.259
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.110
Then patterns cover at least 128 MiB in the guest's memory 1.596 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 20.717 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:335 3.851
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:40.872
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:2.583
And I prepare Tails for memory erasure tests 0.425
When I fill a 128 MiB file with a known pattern on the persistent filesystem 16.791
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.067 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
After features/support/hooks.rb:335 3.376
After features/support/hooks.rb:104 0.009