Project Number Date
test_Tails_ISO_stable 6716 01 Oct 2026, 17:15

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 7:30.022 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
20.230
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 6.548
And I prepare Tails for memory erasure tests 0.382
When I start a process allocating 128 MiB of memory with a known pattern 2.290
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.003 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.268
Then I find very few patterns in the guest's memory after 5 seconds 7.738 
Pattern coverage: 0.000% (0 MiB out of 1415 MiB reference memory)
After features/support/hooks.rb:339 1.020
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
26.031
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 6.511
And I prepare Tails for memory erasure tests 0.294
And I find very few patterns in the guest's memory 2.719 
Pattern coverage: 0.000% (0 MiB out of 1419 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.509
Then patterns cover at least 99% of the test FS size in the guest's memory 6.113 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.400
Then I find very few patterns in the guest's memory after 3 seconds 8.483 
Pattern coverage: 0.000% (0 MiB out of 1419 MiB reference memory)
After features/support/hooks.rb:339 0.732
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
38.711
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 6.355
And I prepare Tails for memory erasure tests 0.328
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.177
Then I find very few patterns in the guest's memory 3.605 
Pattern coverage: 0.000% (0 MiB out of 1415 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.777
Then patterns cover at least 75% of the test FS size in the guest's memory 3.457 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.668
Then I find very few patterns in the guest's memory after 3 seconds 6.421 
Pattern coverage: 0.000% (0 MiB out of 1415 MiB reference memory)
# read cache
When I mount the USB drive again 0.173
And I read the content of the test FS 0.598
Then patterns cover at least 99% of the test FS size in the guest's memory 2.995 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.443
Then I find very few patterns in the guest's memory after 3 seconds 5.707 
Pattern coverage: 0.000% (0 MiB out of 1415 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
1:2.472
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 6.587
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" 29.004
Then I find very few patterns in the guest's memory 2.998 
Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.193
Then patterns cover at least 99% of the test FS size in the guest's memory 2.955 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.499
Then I find very few patterns in the guest's memory after 3 seconds 5.511 
Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)
# read cache
When I mount the USB drive again 3.609
And I read the content of the test FS 0.359
Then patterns cover at least 99% of the test FS size in the guest's memory 3.262 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.463
Then I find very few patterns in the guest's memory after 3 seconds 5.677 
Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)
After features/support/hooks.rb:339 0.917
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.463
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 6.603
And I prepare Tails for memory erasure tests 0.343
When I fill a 128 MiB file with a known pattern on the root filesystem 12.666
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.704
Then patterns cover at least 128 MiB in the guest's memory 2.352 
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 20.787 
Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)
After features/support/hooks.rb:339 3.841
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:18.113
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 3:46.049
And I prepare Tails for memory erasure tests 0.262
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.663
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.132 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:339 3.583
After features/support/hooks.rb:108 0.011