Project Number Date
test_Tails_ISO_21472-circumvention-settings-2 4 30 Mar 2026, 02:39

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 8:9.653 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
20.758
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.552
And I prepare Tails for memory erasure tests 0.360
When I start a process allocating 128 MiB of memory with a known pattern 3.738
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.946 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 1.419
Then I find very few patterns in the guest's memory after 5 seconds 6.740 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 1.543
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.544
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.762
And I prepare Tails for memory erasure tests 0.401
And I find very few patterns in the guest's memory 1.765 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.557
Then patterns cover at least 99% of the test FS size in the guest's memory 1.956 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.329
Then I find very few patterns in the guest's memory after 3 seconds 4.771 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 0.752
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.247
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.551
And I prepare Tails for memory erasure tests 0.327
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.421
Then I find very few patterns in the guest's memory 1.730 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.363
Then patterns cover at least 75% of the test FS size in the guest's memory 1.934 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.728
Then I find very few patterns in the guest's memory after 3 seconds 4.645 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
# read cache
When I mount the USB drive again 0.172
And I read the content of the test FS 0.407
Then patterns cover at least 99% of the test FS size in the guest's memory 1.891 
Pattern coverage: 100.000% (127 MiB out of 127 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 4.722 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 1.124
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:1.797
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.853
And I prepare Tails for memory erasure tests 0.327
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.248
Then I find very few patterns in the guest's memory 1.708 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.519
Then patterns cover at least 99% of the test FS size in the guest's memory 1.814 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.559
Then I find very few patterns in the guest's memory after 3 seconds 4.651 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
# read cache
When I mount the USB drive again 4.529
And I read the content of the test FS 0.277
Then patterns cover at least 99% of the test FS size in the guest's memory 1.876 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.663
Then I find very few patterns in the guest's memory after 3 seconds 4.768 
Pattern coverage: 0.000% (0 MiB out of 1490 MiB reference memory)
After features/support/hooks.rb:331 1.342
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
43.563
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.627
And I prepare Tails for memory erasure tests 0.330
When I fill a 128 MiB file with a known pattern on the root filesystem 12.853
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.819
Then patterns cover at least 128 MiB in the guest's memory 1.438 
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 20.487 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 3.457
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
5:14.742
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:42.313
And I prepare Tails for memory erasure tests 0.311
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.150
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.961 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
After features/support/hooks.rb:331 3.579
After features/support/hooks.rb:100 0.011