Project Number Date
test_Tails_ISO_stable 5963 21 Nov 2025, 12:12

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 14:49.941 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
43.330
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 7.935
And I prepare Tails for memory erasure tests 0.398
When I start a process allocating 128 MiB of memory with a known pattern 1.179
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.740 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.167
Then I find very few patterns in the guest's memory after 5 seconds 17.907 
Pattern coverage: 0.000% (0 MiB out of 1495 MiB reference memory)
After features/support/hooks.rb:331 1.215
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.223
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.184
And I prepare Tails for memory erasure tests 0.389
And I find very few patterns in the guest's memory 15.216 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 0.617
Then patterns cover at least 99% of the test FS size in the guest's memory 14.767 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.104
Then I find very few patterns in the guest's memory after 3 seconds 16.944 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 0.776
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:34.339
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.488
And I prepare Tails for memory erasure tests 0.424
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.477
Then I find very few patterns in the guest's memory 13.720 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.011
Then patterns cover at least 75% of the test FS size in the guest's memory 18.610 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.217
Then I find very few patterns in the guest's memory after 3 seconds 21.973 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# read cache
When I mount the USB drive again 0.159
And I read the content of the test FS 0.811
Then patterns cover at least 99% of the test FS size in the guest's memory 47.522 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.153
Then I find very few patterns in the guest's memory after 3 seconds 34.769 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:331 0.669
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:46.268
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 7.934
And I prepare Tails for memory erasure tests 0.369
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 44.800
Then I find very few patterns in the guest's memory 33.951 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.633
Then patterns cover at least 99% of the test FS size in the guest's memory 25.128 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.435
Then I find very few patterns in the guest's memory after 3 seconds 16.607 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# read cache
When I mount the USB drive again 2.607
And I read the content of the test FS 0.416
Then patterns cover at least 99% of the test FS size in the guest's memory 15.863 
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 15.169 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 0.824
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
51.425
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.586
And I prepare Tails for memory erasure tests 0.424
When I fill a 128 MiB file with a known pattern on the root filesystem 9.098
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.316
Then patterns cover at least 128 MiB in the guest's memory 10.251 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 22.736 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 3.803
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:58.354
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:25.675
And I prepare Tails for memory erasure tests 0.404
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.928
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 23.334 
Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)
After features/support/hooks.rb:331 3.832
After features/support/hooks.rb:100 0.037