Project Number Date
test_Tails_ISO_21472-circumvention-settings-2 9 04 Apr 2026, 02:10

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 6:58.733 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
16.903
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 6.530
And I prepare Tails for memory erasure tests 0.304
When I start a process allocating 128 MiB of memory with a known pattern 1.152
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.073 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.168
Then I find very few patterns in the guest's memory after 5 seconds 6.675 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 0.827
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
16.951
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 6.624
And I prepare Tails for memory erasure tests 0.372
And I find very few patterns in the guest's memory 1.745 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.389
Then patterns cover at least 99% of the test FS size in the guest's memory 1.883 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.306
Then I find very few patterns in the guest's memory after 3 seconds 4.630 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 0.784
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
30.743
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 6.364
And I prepare Tails for memory erasure tests 0.335
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.184
Then I find very few patterns in the guest's memory 1.757 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.043
Then patterns cover at least 75% of the test FS size in the guest's memory 2.027 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.664
Then I find very few patterns in the guest's memory after 3 seconds 4.656 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# read cache
When I mount the USB drive again 0.181
And I read the content of the test FS 0.400
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 0.441
Then I find very few patterns in the guest's memory after 3 seconds 4.717 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 0.999
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
54.698
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 6.670
And I prepare Tails for memory erasure tests 0.313
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.449
Then I find very few patterns in the guest's memory 1.730 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.032
Then patterns cover at least 99% of the test FS size in the guest's memory 1.788 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.538
Then I find very few patterns in the guest's memory after 3 seconds 4.585 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# read cache
When I mount the USB drive again 3.653
And I read the content of the test FS 0.281
Then patterns cover at least 99% of the test FS size in the guest's memory 1.706 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.372
Then I find very few patterns in the guest's memory after 3 seconds 4.576 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:331 1.114
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
42.902
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 6.618
And I prepare Tails for memory erasure tests 0.294
When I fill a 128 MiB file with a known pattern on the root filesystem 12.044
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.893
Then patterns cover at least 128 MiB in the guest's memory 1.532 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 20.508 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:331 3.700
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:16.534
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 3:44.443
And I prepare Tails for memory erasure tests 0.293
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.863
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.929 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
After features/support/hooks.rb:331 3.730
After features/support/hooks.rb:100 0.008