Project Number Date
test_Tails_ISO_21472-circumvention-settings-2 2 28 Mar 2026, 02:07

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 6:59.937 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
16.988
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 6.727
And I prepare Tails for memory erasure tests 0.311
When I start a process allocating 128 MiB of memory with a known pattern 1.144
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.930 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.166
Then I find very few patterns in the guest's memory after 5 seconds 6.706 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:331 0.747
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
16.786
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 6.426
And I prepare Tails for memory erasure tests 0.349
And I find very few patterns in the guest's memory 1.765 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.307
Then patterns cover at least 99% of the test FS size in the guest's memory 1.939 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.303
Then I find very few patterns in the guest's memory after 3 seconds 4.693 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:331 0.966
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.216
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 6.472
And I prepare Tails for memory erasure tests 0.360
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.292
Then I find very few patterns in the guest's memory 1.761 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.041
Then patterns cover at least 75% of the test FS size in the guest's memory 1.957 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.703
Then I find very few patterns in the guest's memory after 3 seconds 4.753 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
# read cache
When I mount the USB drive again 0.144
And I read the content of the test FS 0.539
Then patterns cover at least 99% of the test FS size in the guest's memory 2.042 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.337
Then I find very few patterns in the guest's memory after 3 seconds 4.807 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:331 1.030
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
53.340
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 6.433
And I prepare Tails for memory erasure tests 0.339
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 26.775
Then I find very few patterns in the guest's memory 1.643 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.030
Then patterns cover at least 99% of the test FS size in the guest's memory 1.763 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.449
Then I find very few patterns in the guest's memory after 3 seconds 4.605 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
# read cache
When I mount the USB drive again 3.282
And I read the content of the test FS 0.265
Then patterns cover at least 99% of the test FS size in the guest's memory 1.748 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.399
Then I find very few patterns in the guest's memory after 3 seconds 4.601 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
After features/support/hooks.rb:331 0.925
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
42.477
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 6.527
And I prepare Tails for memory erasure tests 0.386
When I fill a 128 MiB file with a known pattern on the root filesystem 11.974
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.609
Then patterns cover at least 128 MiB in the guest's memory 1.498 
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 20.475 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:331 3.578
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:19.127
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 3:47.089
And I prepare Tails for memory erasure tests 0.314
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.775
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.944 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:331 3.584
After features/support/hooks.rb:100 0.008