Project Number Date
test_Tails_ISO_devel 4122 15 Dec 2025, 12:35

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 15:49.905 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
57.909
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.010
Given I have started Tails from DVD without network and logged in 9.036
And I prepare Tails for memory erasure tests 0.385
When I start a process allocating 128 MiB of memory with a known pattern 2.303
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 14.966 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.493
Then I find very few patterns in the guest's memory after 5 seconds 30.722 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 4.267
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
59.180
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.038
Given I have started Tails from DVD without network and logged in 8.751
And I prepare Tails for memory erasure tests 0.456
And I find very few patterns in the guest's memory 14.389 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.813
Then patterns cover at least 99% of the test FS size in the guest's memory 15.931 
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 17.300 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 0.908
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:43.379
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 8.943
And I prepare Tails for memory erasure tests 0.532
When I plug and mount a 128 MiB USB drive with a vfat filesystem 8.168
Then I find very few patterns in the guest's memory 14.182 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.074
Then patterns cover at least 75% of the test FS size in the guest's memory 16.436 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.010
Then I find very few patterns in the guest's memory after 3 seconds 17.184 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# read cache
When I mount the USB drive again 0.230
And I read the content of the test FS 0.571
Then patterns cover at least 99% of the test FS size in the guest's memory 15.361 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.414
Then I find very few patterns in the guest's memory after 3 seconds 17.267 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 1.138
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
3:35.984
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 8.120
And I prepare Tails for memory erasure tests 0.428
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.128
Then I find very few patterns in the guest's memory 26.920 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.783
Then patterns cover at least 99% of the test FS size in the guest's memory 31.262 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.624
Then I find very few patterns in the guest's memory after 3 seconds 33.697 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# read cache
When I mount the USB drive again 4.498
And I read the content of the test FS 0.528
Then patterns cover at least 99% of the test FS size in the guest's memory 48.129 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.645
Then I find very few patterns in the guest's memory after 3 seconds 28.215 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:331 1.131
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:1.785
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 8.729
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 10.693
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.652
Then patterns cover at least 128 MiB in the guest's memory 16.280 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.017
Then I find very few patterns in the guest's memory after 20 seconds 22.988 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 3.517
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:31.665
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 6:58.298
And I prepare Tails for memory erasure tests 0.398
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.416
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 23.541 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 3.753
After features/support/hooks.rb:100 0.015