Project Number Date
test_Tails_ISO_devel 4540 10 Aug 2026, 14:18

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 7:39.877 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
21.098
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 6.808
And I prepare Tails for memory erasure tests 0.328
When I start a process allocating 128 MiB of memory with a known pattern 2.204
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.998 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.755
Then I find very few patterns in the guest's memory after 5 seconds 8.003 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:339 0.700
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
21.214
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 6.704
And I prepare Tails for memory erasure tests 0.358
And I find very few patterns in the guest's memory 2.738 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.908
Then patterns cover at least 99% of the test FS size in the guest's memory 3.068 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.538
Then I find very few patterns in the guest's memory after 3 seconds 5.898 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:339 1.091
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
39.167
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.009
Given I have started Tails from DVD without network and logged in 6.537
And I prepare Tails for memory erasure tests 0.310
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.413
Then I find very few patterns in the guest's memory 2.709 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.962
Then patterns cover at least 75% of the test FS size in the guest's memory 3.268 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.827
Then I find very few patterns in the guest's memory after 3 seconds 5.778 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# read cache
When I mount the USB drive again 0.170
And I read the content of the test FS 0.634
Then patterns cover at least 99% of the test FS size in the guest's memory 3.932 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.561
Then I find very few patterns in the guest's memory after 3 seconds 6.059 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
After features/support/hooks.rb:339 0.652
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:8.005
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 6.600
And I prepare Tails for memory erasure tests 0.334
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.250
Then I find very few patterns in the guest's memory 2.735 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.191
Then patterns cover at least 99% of the test FS size in the guest's memory 2.807 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.537
Then I find very few patterns in the guest's memory after 3 seconds 6.594 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
# read cache
When I mount the USB drive again 4.561
And I read the content of the test FS 0.380
Then patterns cover at least 99% of the test FS size in the guest's memory 2.885 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.422
Then I find very few patterns in the guest's memory after 3 seconds 5.704 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:339 0.778
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
45.602
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 6.558
And I prepare Tails for memory erasure tests 0.389
When I fill a 128 MiB file with a known pattern on the root filesystem 13.653
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.650
Then patterns cover at least 128 MiB in the guest's memory 2.481 
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 20.861 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:339 3.532
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:24.789
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 3:54.186
And I prepare Tails for memory erasure tests 0.296
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.220
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.080 
Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)
After features/support/hooks.rb:339 3.508
After features/support/hooks.rb:108 0.015