Project Number Date
test_Tails_ISO_stable 6648 08 Sep 2026, 18:12

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 7:41.801 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
21.346
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 6.292
And I prepare Tails for memory erasure tests 0.329
When I start a process allocating 128 MiB of memory with a known pattern 2.251
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 4.251 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.334
Then I find very few patterns in the guest's memory after 5 seconds 7.888 
Pattern coverage: 0.000% (0 MiB out of 1423 MiB reference memory)
After features/support/hooks.rb:339 0.896
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.449
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 6.310
And I prepare Tails for memory erasure tests 0.311
And I find very few patterns in the guest's memory 3.077 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.690
Then patterns cover at least 99% of the test FS size in the guest's memory 2.991 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.425
Then I find very few patterns in the guest's memory after 3 seconds 5.642 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
After features/support/hooks.rb:339 0.784
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
37.755
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 6.526
And I prepare Tails for memory erasure tests 0.369
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.665
Then I find very few patterns in the guest's memory 2.925 
Pattern coverage: 0.000% (0 MiB out of 1424 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.478
Then patterns cover at least 75% of the test FS size in the guest's memory 3.042 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.715
Then I find very few patterns in the guest's memory after 3 seconds 5.794 
Pattern coverage: 0.000% (0 MiB out of 1424 MiB reference memory)
# read cache
When I mount the USB drive again 0.165
And I read the content of the test FS 0.670
Then patterns cover at least 99% of the test FS size in the guest's memory 3.228 
Pattern coverage: 100.000% (127 MiB out of 127 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 5.776 
Pattern coverage: 0.000% (0 MiB out of 1424 MiB reference memory)
After features/support/hooks.rb:339 0.966
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:4.616
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 6.409
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" 30.525
Then I find very few patterns in the guest's memory 2.694 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.281
Then patterns cover at least 99% of the test FS size in the guest's memory 2.897 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.496
Then I find very few patterns in the guest's memory after 3 seconds 5.718 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
# read cache
When I mount the USB drive again 4.810
And I read the content of the test FS 0.486
Then patterns cover at least 99% of the test FS size in the guest's memory 2.866 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.467
Then I find very few patterns in the guest's memory after 3 seconds 5.572 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
After features/support/hooks.rb:339 0.625
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
45.896
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 6.691
And I prepare Tails for memory erasure tests 0.313
When I fill a 128 MiB file with a known pattern on the root filesystem 13.598
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.852
Then patterns cover at least 128 MiB in the guest's memory 2.593 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.841 
Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)
After features/support/hooks.rb:339 3.682
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:31.736
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:59.694
And I prepare Tails for memory erasure tests 0.292
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.483
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 21.257 
Pattern coverage: 0.000% (0 MiB out of 1444 MiB reference memory)
After features/support/hooks.rb:339 3.513
After features/support/hooks.rb:108 0.012