Project Number Date
test_Tails_ISO_devel 4553 17 Aug 2026, 17:54

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 7:40.572 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
20.200
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.225
And I prepare Tails for memory erasure tests 0.329
When I start a process allocating 128 MiB of memory with a known pattern 2.192
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.596 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.216
Then I find very few patterns in the guest's memory after 5 seconds 7.640 
Pattern coverage: 0.000% (0 MiB out of 1453 MiB reference memory)
After features/support/hooks.rb:339 0.980
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.288
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 6.211
And I prepare Tails for memory erasure tests 0.333
And I find very few patterns in the guest's memory 2.937 
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 1.646
Then patterns cover at least 99% of the test FS size in the guest's memory 3.125 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.397
Then I find very few patterns in the guest's memory after 3 seconds 5.636 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:339 0.914
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
46.911
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 6.427
And I prepare Tails for memory erasure tests 0.385
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.484
Then I find very few patterns in the guest's memory 4.267 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.667
Then patterns cover at least 75% of the test FS size in the guest's memory 5.169 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.730
Then I find very few patterns in the guest's memory after 3 seconds 7.764 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# read cache
When I mount the USB drive again 0.225
And I read the content of the test FS 0.692
Then patterns cover at least 99% of the test FS size in the guest's memory 4.975 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.426
Then I find very few patterns in the guest's memory after 3 seconds 7.694 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:339 0.916
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:4.485
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 0.349
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.954
Then I find very few patterns in the guest's memory 3.060 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.238
Then patterns cover at least 99% of the test FS size in the guest's memory 3.279 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.572
Then I find very few patterns in the guest's memory after 3 seconds 6.236 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
# read cache
When I mount the USB drive again 3.827
And I read the content of the test FS 0.349
Then patterns cover at least 99% of the test FS size in the guest's memory 3.654 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.452
Then I find very few patterns in the guest's memory after 3 seconds 6.077 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:339 0.840
After features/support/hooks.rb:108 0.004
Tags: @product @slow @not_release_blocker
45.431
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.008
Given I have started Tails from DVD without network and logged in 6.455
And I prepare Tails for memory erasure tests 0.353
When I fill a 128 MiB file with a known pattern on the root filesystem 13.709
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.800
Then patterns cover at least 128 MiB in the guest's memory 2.369 
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 20.737 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:339 3.614
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:23.255
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:51.537
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 10.357
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.057 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
After features/support/hooks.rb:339 3.716
After features/support/hooks.rb:108 0.009