Project Number Date
test_Tails_ISO_21742-tor-browser-15.0.21 2 01 Sep 2026, 12:25

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 7:18.836 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
19.596
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.259
And I prepare Tails for memory erasure tests 0.289
When I start a process allocating 128 MiB of memory with a known pattern 2.161
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.947 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.190
Then I find very few patterns in the guest's memory after 5 seconds 7.746 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:339 0.612
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.725
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.138
And I prepare Tails for memory erasure tests 0.313
And I find very few patterns in the guest's memory 2.616 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.506
Then patterns cover at least 99% of the test FS size in the guest's memory 3.120 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.371
Then I find very few patterns in the guest's memory after 3 seconds 5.658 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:339 0.981
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
36.008
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.182
And I prepare Tails for memory erasure tests 0.333
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.128
Then I find very few patterns in the guest's memory 2.623 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.523
Then patterns cover at least 75% of the test FS size in the guest's memory 3.077 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.632
Then I find very few patterns in the guest's memory after 3 seconds 5.770 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 0.182
And I read the content of the test FS 0.573
Then patterns cover at least 99% of the test FS size in the guest's memory 2.998 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.401
Then I find very few patterns in the guest's memory after 3 seconds 5.581 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 0.732
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.289
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.238
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" 29.001
Then I find very few patterns in the guest's memory 2.558 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.079
Then patterns cover at least 99% of the test FS size in the guest's memory 2.806 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.493
Then I find very few patterns in the guest's memory after 3 seconds 5.549 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
# read cache
When I mount the USB drive again 3.969
And I read the content of the test FS 0.350
Then patterns cover at least 99% of the test FS size in the guest's memory 2.916 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.434
Then I find very few patterns in the guest's memory after 3 seconds 5.488 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 0.884
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.324
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.187
And I prepare Tails for memory erasure tests 0.301
When I fill a 128 MiB file with a known pattern on the root filesystem 12.319
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.636
Then patterns cover at least 128 MiB in the guest's memory 2.193 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.679 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 3.675
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:18.891
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:47.278
And I prepare Tails for memory erasure tests 0.290
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.265
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.052 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:339 3.759
After features/support/hooks.rb:108 0.009