Project Number Date
test_Tails_ISO_stable 6508 16 Jul 2026, 11:32

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 7:36.286 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
18.716
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 6.645
And I prepare Tails for memory erasure tests 0.317
When I start a process allocating 128 MiB of memory with a known pattern 2.195
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.925 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.912
Then I find very few patterns in the guest's memory after 5 seconds 6.721 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:339 1.017
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.851
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 6.485
And I prepare Tails for memory erasure tests 0.348
And I find very few patterns in the guest's memory 1.757 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.963
Then patterns cover at least 99% of the test FS size in the guest's memory 1.930 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.664
Then I find very few patterns in the guest's memory after 3 seconds 4.703 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
After features/support/hooks.rb:339 0.869
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.935
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 6.400
And I prepare Tails for memory erasure tests 0.397
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.154
Then I find very few patterns in the guest's memory 1.614 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.816
Then patterns cover at least 75% of the test FS size in the guest's memory 1.983 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.924
Then I find very few patterns in the guest's memory after 3 seconds 4.744 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
# read cache
When I mount the USB drive again 0.163
And I read the content of the test FS 0.402
Then patterns cover at least 99% of the test FS size in the guest's memory 1.997 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.545
Then I find very few patterns in the guest's memory after 3 seconds 4.790 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:339 0.854
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
56.897
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 6.514
And I prepare Tails for memory erasure tests 0.333
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.752
Then I find very few patterns in the guest's memory 1.729 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.238
Then patterns cover at least 99% of the test FS size in the guest's memory 1.810 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.525
Then I find very few patterns in the guest's memory after 3 seconds 4.663 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
# read cache
When I mount the USB drive again 4.310
And I read the content of the test FS 0.276
Then patterns cover at least 99% of the test FS size in the guest's memory 1.749 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.397
Then I find very few patterns in the guest's memory after 3 seconds 4.593 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
After features/support/hooks.rb:339 1.058
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:4.278
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 6.521
And I prepare Tails for memory erasure tests 0.331
When I fill a 128 MiB file with a known pattern on the root filesystem 33.889
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.520
Then patterns cover at least 128 MiB in the guest's memory 1.481 
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 20.526 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:339 3.769
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:26.606
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:38.498
And I prepare Tails for memory erasure tests 0.294
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.837
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.971 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:339 3.623
After features/support/hooks.rb:108 0.010