Project Number Date
test_Tails_ISO_stable 6509 17 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 7:52.724 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
18.551
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 6.719
And I prepare Tails for memory erasure tests 0.353
When I start a process allocating 128 MiB of memory with a known pattern 2.165
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.133 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.235
Then I find very few patterns in the guest's memory after 5 seconds 6.944 
Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)
After features/support/hooks.rb:339 0.775
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
18.012
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 6.752
And I prepare Tails for memory erasure tests 0.419
And I find very few patterns in the guest's memory 1.790 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.645
Then patterns cover at least 99% of the test FS size in the guest's memory 2.167 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.378
Then I find very few patterns in the guest's memory after 3 seconds 4.859 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:339 0.827
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
32.414
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 6.710
And I prepare Tails for memory erasure tests 0.345
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.283
Then I find very few patterns in the guest's memory 2.121 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.647
Then patterns cover at least 75% of the test FS size in the guest's memory 2.127 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.791
Then I find very few patterns in the guest's memory after 3 seconds 4.699 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# read cache
When I mount the USB drive again 0.165
And I read the content of the test FS 0.415
Then patterns cover at least 99% of the test FS size in the guest's memory 1.948 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.407
Then I find very few patterns in the guest's memory after 3 seconds 4.751 
Pattern coverage: 0.000% (0 MiB out of 1479 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
58.132
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 6.735
And I prepare Tails for memory erasure tests 0.336
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.917
Then I find very few patterns in the guest's memory 1.707 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.134
Then patterns cover at least 99% of the test FS size in the guest's memory 2.022 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.501
Then I find very few patterns in the guest's memory after 3 seconds 4.796 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
# read cache
When I mount the USB drive again 4.699
And I read the content of the test FS 0.266
Then patterns cover at least 99% of the test FS size in the guest's memory 1.861 
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 4.755 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
After features/support/hooks.rb:339 0.630
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:5.039
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 6.999
And I prepare Tails for memory erasure tests 0.351
When I fill a 128 MiB file with a known pattern on the root filesystem 33.585
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.948
Then patterns cover at least 128 MiB in the guest's memory 1.599 
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 20.547 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
After features/support/hooks.rb:339 3.534
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:40.573
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 3:53.344
And I prepare Tails for memory erasure tests 0.388
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.890
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.945 
Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)
After features/support/hooks.rb:339 3.740
After features/support/hooks.rb:108 0.011