Project Number Date
test_Tails_ISO_devel 4658 05 Oct 2026, 17:30

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 7:31.014 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
20.181
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 6.220
And I prepare Tails for memory erasure tests 0.265
When I start a process allocating 128 MiB of memory with a known pattern 2.246
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.060 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.743
Then I find very few patterns in the guest's memory after 5 seconds 7.645 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
After features/support/hooks.rb:339 1.040
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.134
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.162
And I prepare Tails for memory erasure tests 0.294
And I find very few patterns in the guest's memory 3.221 
Pattern coverage: 0.000% (0 MiB out of 1398 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.541
Then patterns cover at least 99% of the test FS size in the guest's memory 2.920 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.403
Then I find very few patterns in the guest's memory after 3 seconds 5.591 
Pattern coverage: 0.000% (0 MiB out of 1398 MiB reference memory)
After features/support/hooks.rb:339 0.616
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
37.322
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 6.242
And I prepare Tails for memory erasure tests 0.300
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.560
Then I find very few patterns in the guest's memory 2.863 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.716
Then patterns cover at least 75% of the test FS size in the guest's memory 2.920 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.696
Then I find very few patterns in the guest's memory after 3 seconds 5.946 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
# read cache
When I mount the USB drive again 0.178
And I read the content of the test FS 0.754
Then patterns cover at least 99% of the test FS size in the guest's memory 2.953 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.473
Then I find very few patterns in the guest's memory after 3 seconds 5.713 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
After features/support/hooks.rb:339 0.908
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:0.365
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 6.202
And I prepare Tails for memory erasure tests 0.291
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.092
Then I find very few patterns in the guest's memory 2.647 
Pattern coverage: 0.000% (0 MiB out of 1395 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.322
Then patterns cover at least 99% of the test FS size in the guest's memory 2.666 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.489
Then I find very few patterns in the guest's memory after 3 seconds 5.648 
Pattern coverage: 0.000% (0 MiB out of 1395 MiB reference memory)
# read cache
When I mount the USB drive again 3.938
And I read the content of the test FS 0.401
Then patterns cover at least 99% of the test FS size in the guest's memory 2.617 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.458
Then I find very few patterns in the guest's memory after 3 seconds 5.587 
Pattern coverage: 0.000% (0 MiB out of 1395 MiB reference memory)
After features/support/hooks.rb:339 0.880
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.879
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 6.199
And I prepare Tails for memory erasure tests 0.305
When I fill a 128 MiB file with a known pattern on the root filesystem 13.024
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.476
Then patterns cover at least 128 MiB in the guest's memory 2.095 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.773 
Pattern coverage: 0.000% (0 MiB out of 1404 MiB reference memory)
After features/support/hooks.rb:339 3.720
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:29.130
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.016
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:58.212
And I prepare Tails for memory erasure tests 0.324
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.479
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.109 
Pattern coverage: 0.000% (0 MiB out of 1450 MiB reference memory)
After features/support/hooks.rb:339 3.614
After features/support/hooks.rb:108 0.010