Project Number Date
test_Tails_ISO_stable 6224 23 Mar 2026, 20:09

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 7:47.529 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
18.089
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 6.734
And I prepare Tails for memory erasure tests 0.459
When I start a process allocating 128 MiB of memory with a known pattern 1.285
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.082 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.395
Then I find very few patterns in the guest's memory after 5 seconds 7.131 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 0.792
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.039
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 6.845
And I prepare Tails for memory erasure tests 0.547
And I find very few patterns in the guest's memory 2.208 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.988
Then patterns cover at least 99% of the test FS size in the guest's memory 2.138 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.432
Then I find very few patterns in the guest's memory after 3 seconds 4.879 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:331 0.767
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
34.275
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 6.694
And I prepare Tails for memory erasure tests 0.645
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.954
Then I find very few patterns in the guest's memory 2.090 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.468
Then patterns cover at least 75% of the test FS size in the guest's memory 2.365 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.889
Then I find very few patterns in the guest's memory after 3 seconds 4.951 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 0.178
And I read the content of the test FS 0.647
Then patterns cover at least 99% of the test FS size in the guest's memory 1.967 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.489
Then I find very few patterns in the guest's memory after 3 seconds 4.931 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 1.044
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:5.488
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.005
Given I have started Tails from DVD without network and logged in 6.941
And I prepare Tails for memory erasure tests 0.359
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.798
Then I find very few patterns in the guest's memory 1.728 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.603
Then patterns cover at least 99% of the test FS size in the guest's memory 1.850 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.540
Then I find very few patterns in the guest's memory after 3 seconds 4.669 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# read cache
When I mount the USB drive again 4.604
And I read the content of the test FS 0.352
Then patterns cover at least 99% of the test FS size in the guest's memory 1.953 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.501
Then I find very few patterns in the guest's memory after 3 seconds 4.585 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:331 1.115
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
49.910
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 6.719
And I prepare Tails for memory erasure tests 0.613
When I fill a 128 MiB file with a known pattern on the root filesystem 13.411
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 6.602
Then patterns cover at least 128 MiB in the guest's memory 1.924 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.051
Then I find very few patterns in the guest's memory after 20 seconds 20.587 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 3.792
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:40.725
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 4:7.784
And I prepare Tails for memory erasure tests 0.383
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.529
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.021 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 3.592
After features/support/hooks.rb:100 0.012