Project Number Date
test_Tails_ISO_21688-strict-umask 5 26 Jul 2026, 04:52

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 8:18.456 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
19.317
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 7.321
And I prepare Tails for memory erasure tests 0.488
When I start a process allocating 128 MiB of memory with a known pattern 2.231
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.085 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.200
Then I find very few patterns in the guest's memory after 5 seconds 6.990 
Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)
After features/support/hooks.rb:339 0.973
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
18.971
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 7.554
And I prepare Tails for memory erasure tests 0.394
And I find very few patterns in the guest's memory 1.911 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.718
Then patterns cover at least 99% of the test FS size in the guest's memory 1.922 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.395
Then I find very few patterns in the guest's memory after 3 seconds 5.074 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:339 0.836
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
33.833
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 7.193
And I prepare Tails for memory erasure tests 0.365
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.370
Then I find very few patterns in the guest's memory 1.745 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.702
Then patterns cover at least 75% of the test FS size in the guest's memory 2.138 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.761
Then I find very few patterns in the guest's memory after 3 seconds 5.164 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
# read cache
When I mount the USB drive again 0.271
And I read the content of the test FS 0.555
Then patterns cover at least 99% of the test FS size in the guest's memory 2.282 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.517
Then I find very few patterns in the guest's memory after 3 seconds 4.766 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:339 0.931
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.270
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 6.921
And I prepare Tails for memory erasure tests 0.414
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.748
Then I find very few patterns in the guest's memory 1.807 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.256
Then patterns cover at least 99% of the test FS size in the guest's memory 2.093 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.518
Then I find very few patterns in the guest's memory after 3 seconds 5.032 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
# read cache
When I mount the USB drive again 4.857
And I read the content of the test FS 0.396
Then patterns cover at least 99% of the test FS size in the guest's memory 2.144 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.416
Then I find very few patterns in the guest's memory after 3 seconds 4.660 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:339 1.139
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:6.428
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 6.992
And I prepare Tails for memory erasure tests 0.496
When I fill a 128 MiB file with a known pattern on the root filesystem 35.117
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.661
Then patterns cover at least 128 MiB in the guest's memory 1.584 
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 20.570 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:339 3.692
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:58.633
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 4:11.359
And I prepare Tails for memory erasure tests 0.465
When I fill a 128 MiB file with a known pattern on the persistent filesystem 25.772
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.029 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:339 3.657
After features/support/hooks.rb:108 0.011