Project Number Date
test_Tails_ISO_stable 6196 12 Mar 2026, 11:21

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 7:27.724 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
19.045
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 6.515
And I prepare Tails for memory erasure tests 0.385
When I start a process allocating 128 MiB of memory with a known pattern 2.322
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.405 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.324
Then I find very few patterns in the guest's memory after 5 seconds 7.092 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:331 0.870
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.990
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 6.792
And I prepare Tails for memory erasure tests 0.383
And I find very few patterns in the guest's memory 1.868 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.677
Then patterns cover at least 99% of the test FS size in the guest's memory 2.382 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.826
Then I find very few patterns in the guest's memory after 3 seconds 5.058 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 0.871
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
34.782
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 6.823
And I prepare Tails for memory erasure tests 0.446
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.785
Then I find very few patterns in the guest's memory 2.159 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.138
Then patterns cover at least 75% of the test FS size in the guest's memory 2.211 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.135
Then I find very few patterns in the guest's memory after 3 seconds 4.919 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 0.225
And I read the content of the test FS 0.380
Then patterns cover at least 99% of the test FS size in the guest's memory 2.312 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.286
Then I find very few patterns in the guest's memory after 3 seconds 4.957 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 1.060
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:7.016
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 6.853
And I prepare Tails for memory erasure tests 0.398
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.077
Then I find very few patterns in the guest's memory 1.761 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.409
Then patterns cover at least 99% of the test FS size in the guest's memory 1.772 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.574
Then I find very few patterns in the guest's memory after 3 seconds 4.711 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# read cache
When I mount the USB drive again 10.205
And I read the content of the test FS 0.281
Then patterns cover at least 99% of the test FS size in the guest's memory 1.874 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.522
Then I find very few patterns in the guest's memory after 3 seconds 4.573 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 1.098
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
45.621
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 6.833
And I prepare Tails for memory erasure tests 0.449
When I fill a 128 MiB file with a known pattern on the root filesystem 13.995
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.813
Then patterns cover at least 128 MiB in the guest's memory 1.848 
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 20.676 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 3.705
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:21.266
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.005
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:48.324
And I prepare Tails for memory erasure tests 0.320
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.525
When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 21.079 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
After features/support/hooks.rb:331 3.512
After features/support/hooks.rb:100 0.012