Project Number Date
test_Tails_ISO_stable 5942 11 Nov 2025, 08:39

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 14:33.672 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
48.653
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 8.620
And I prepare Tails for memory erasure tests 0.480
When I start a process allocating 128 MiB of memory with a known pattern 1.663
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 19.147 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.266
Then I find very few patterns in the guest's memory after 5 seconds 18.474 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
After features/support/hooks.rb:331 1.116
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:7.806
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 8.687
And I prepare Tails for memory erasure tests 0.410
And I find very few patterns in the guest's memory 18.937 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.721
Then patterns cover at least 99% of the test FS size in the guest's memory 21.097 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.404
Then I find very few patterns in the guest's memory after 3 seconds 16.547 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
After features/support/hooks.rb:331 1.193
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:41.762
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 8.635
And I prepare Tails for memory erasure tests 0.536
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.633
Then I find very few patterns in the guest's memory 15.289 
Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.769
Then patterns cover at least 75% of the test FS size in the guest's memory 16.175 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.894
Then I find very few patterns in the guest's memory after 3 seconds 17.111 
Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)
# read cache
When I mount the USB drive again 0.282
And I read the content of the test FS 0.823
Then patterns cover at least 99% of the test FS size in the guest's memory 15.001 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.519
Then I find very few patterns in the guest's memory after 3 seconds 17.091 
Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)
After features/support/hooks.rb:331 0.712
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:52.373
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 8.606
And I prepare Tails for memory erasure tests 0.385
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.907
Then I find very few patterns in the guest's memory 31.976 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.568
Then patterns cover at least 99% of the test FS size in the guest's memory 36.137 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.786
Then I find very few patterns in the guest's memory after 3 seconds 23.769 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
# read cache
When I mount the USB drive again 4.410
And I read the content of the test FS 0.529
Then patterns cover at least 99% of the test FS size in the guest's memory 13.924 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.704
Then I find very few patterns in the guest's memory after 3 seconds 15.667 
Pattern coverage: 0.000% (0 MiB out of 1512 MiB reference memory)
After features/support/hooks.rb:331 1.886
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:2.710
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 16.845
And I prepare Tails for memory erasure tests 0.413
When I fill a 128 MiB file with a known pattern on the root filesystem 10.078
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.841
Then patterns cover at least 128 MiB in the guest's memory 9.720 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 22.797 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
After features/support/hooks.rb:331 3.547
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:0.365
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 6:27.579
And I prepare Tails for memory erasure tests 0.403
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.790
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 23.577 
Pattern coverage: 0.000% (0 MiB out of 1549 MiB reference memory)
After features/support/hooks.rb:331 3.732
After features/support/hooks.rb:100 0.014