Project Number Date
test_Tails_ISO_stable 6502 13 Jul 2026, 20:23

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 8:6.133 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
18.764
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 7.440
And I prepare Tails for memory erasure tests 0.436
When I start a process allocating 128 MiB of memory with a known pattern 1.253
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.408 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.182
Then I find very few patterns in the guest's memory after 5 seconds 7.043 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:339 1.143
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
18.953
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 7.149
And I prepare Tails for memory erasure tests 0.441
And I find very few patterns in the guest's memory 2.072 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.632
Then patterns cover at least 99% of the test FS size in the guest's memory 2.192 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.298
Then I find very few patterns in the guest's memory after 3 seconds 5.167 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 0.952
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
34.976
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 7.410
And I prepare Tails for memory erasure tests 0.436
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.564
Then I find very few patterns in the guest's memory 1.906 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.684
Then patterns cover at least 75% of the test FS size in the guest's memory 2.450 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.881
Then I find very few patterns in the guest's memory after 3 seconds 5.190 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 0.175
And I read the content of the test FS 0.544
Then patterns cover at least 99% of the test FS size in the guest's memory 2.330 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.384
Then I find very few patterns in the guest's memory after 3 seconds 5.014 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:339 0.886
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.431
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 7.163
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" 29.704
Then I find very few patterns in the guest's memory 1.726 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.169
Then patterns cover at least 99% of the test FS size in the guest's memory 2.002 
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 5.513 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# read cache
When I mount the USB drive again 5.174
And I read the content of the test FS 0.352
Then patterns cover at least 99% of the test FS size in the guest's memory 2.169 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.542
Then I find very few patterns in the guest's memory after 3 seconds 4.971 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:339 0.991
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
56.103
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.804
And I prepare Tails for memory erasure tests 0.404
When I fill a 128 MiB file with a known pattern on the root filesystem 24.874
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.833
Then patterns cover at least 128 MiB in the guest's memory 1.623 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.555 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:339 3.535
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:55.904
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:6.444
And I prepare Tails for memory erasure tests 0.406
When I fill a 128 MiB file with a known pattern on the persistent filesystem 28.137
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.911 
Pattern coverage: 0.000% (0 MiB out of 1521 MiB reference memory)
After features/support/hooks.rb:339 3.886
After features/support/hooks.rb:108 0.022