Project Number Date
test_Tails_ISO_stable 5954 15 Nov 2025, 02:50

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 19:23.221 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
1:9.539
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 8.757
And I prepare Tails for memory erasure tests 0.645
When I start a process allocating 128 MiB of memory with a known pattern 2.326
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 25.414 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.343
Then I find very few patterns in the guest's memory after 5 seconds 32.053 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
After features/support/hooks.rb:331 1.189
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:33.876
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 9.086
And I prepare Tails for memory erasure tests 0.380
And I find very few patterns in the guest's memory 36.776 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.928
Then patterns cover at least 99% of the test FS size in the guest's memory 26.834 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.472
Then I find very few patterns in the guest's memory after 3 seconds 18.396 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
After features/support/hooks.rb:331 1.038
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
5:18.335
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 29.138
And I prepare Tails for memory erasure tests 0.448
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.628
Then I find very few patterns in the guest's memory 1:19.157 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.350
Then patterns cover at least 75% of the test FS size in the guest's memory 37.975 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.919
Then I find very few patterns in the guest's memory after 3 seconds 1:5.406 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# read cache
When I mount the USB drive again 0.221
And I read the content of the test FS 2.623
Then patterns cover at least 99% of the test FS size in the guest's memory 50.022 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.388
Then I find very few patterns in the guest's memory after 3 seconds 39.056 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 1.125
After features/support/hooks.rb:100 0.002
Tags: @product @slow @not_release_blocker
2:19.163
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.017
Given I have started Tails from DVD without network and logged in 9.026
And I prepare Tails for memory erasure tests 0.402
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.980
Then I find very few patterns in the guest's memory 15.902 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.997
Then patterns cover at least 99% of the test FS size in the guest's memory 13.647 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.735
Then I find very few patterns in the guest's memory after 3 seconds 19.198 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
# read cache
When I mount the USB drive again 7.371
And I read the content of the test FS 1.925
Then patterns cover at least 99% of the test FS size in the guest's memory 15.771 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.694
Then I find very few patterns in the guest's memory after 3 seconds 16.510 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
After features/support/hooks.rb:331 0.828
After features/support/hooks.rb:100 0.003
Tags: @product @slow @not_release_blocker
56.405
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 9.088
And I prepare Tails for memory erasure tests 0.511
When I fill a 128 MiB file with a known pattern on the root filesystem 10.222
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.929
Then patterns cover at least 128 MiB in the guest's memory 10.745 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 22.893 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
After features/support/hooks.rb:331 6.537
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
8:5.901
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:29.846
And I prepare Tails for memory erasure tests 0.424
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.757
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 26.861 
Pattern coverage: 0.000% (0 MiB out of 1557 MiB reference memory)
After features/support/hooks.rb:331 3.705
After features/support/hooks.rb:100 0.213