Project Number Date
test_Tails_ISO_stable 6543 29 Jul 2026, 11:35

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 7:37.447 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
18.442
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 6.378
And I prepare Tails for memory erasure tests 0.319
When I start a process allocating 128 MiB of memory with a known pattern 2.203
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.889 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.960
Then I find very few patterns in the guest's memory after 5 seconds 6.691 
Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)
After features/support/hooks.rb:339 0.760
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.318
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 6.430
And I prepare Tails for memory erasure tests 0.398
And I find very few patterns in the guest's memory 1.934 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.527
Then patterns cover at least 99% of the test FS size in the guest's memory 1.906 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.350
Then I find very few patterns in the guest's memory after 3 seconds 4.770 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 0.903
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.449
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 6.344
And I prepare Tails for memory erasure tests 0.354
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.075
Then I find very few patterns in the guest's memory 1.811 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.801
Then patterns cover at least 75% of the test FS size in the guest's memory 1.956 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.828
Then I find very few patterns in the guest's memory after 3 seconds 4.650 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# read cache
When I mount the USB drive again 0.132
And I read the content of the test FS 0.376
Then patterns cover at least 99% of the test FS size in the guest's memory 1.808 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.445
Then I find very few patterns in the guest's memory after 3 seconds 4.862 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:339 0.891
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:0.413
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 6.535
And I prepare Tails for memory erasure tests 0.347
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.225
Then I find very few patterns in the guest's memory 1.717 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.174
Then patterns cover at least 99% of the test FS size in the guest's memory 1.825 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.465
Then I find very few patterns in the guest's memory after 3 seconds 4.585 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# read cache
When I mount the USB drive again 4.643
And I read the content of the test FS 0.288
Then patterns cover at least 99% of the test FS size in the guest's memory 1.669 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.350
Then I find very few patterns in the guest's memory after 3 seconds 4.582 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:339 0.828
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:5.778
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 6.550
And I prepare Tails for memory erasure tests 0.333
When I fill a 128 MiB file with a known pattern on the root filesystem 35.422
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.487
Then patterns cover at least 128 MiB in the guest's memory 1.496 
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 20.481 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
After features/support/hooks.rb:339 3.800
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:24.045
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 3:37.238
And I prepare Tails for memory erasure tests 0.298
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.623
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.880 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
After features/support/hooks.rb:339 3.791
After features/support/hooks.rb:108 0.010