Project Number Date
test_Tails_ISO_stable 6537 28 Jul 2026, 11:50

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 8:4.401 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
18.835
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 6.938
And I prepare Tails for memory erasure tests 0.389
When I start a process allocating 128 MiB of memory with a known pattern 2.247
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.137 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.179
Then I find very few patterns in the guest's memory after 5 seconds 6.942 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
After features/support/hooks.rb:339 1.177
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.577
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.006
Given I have started Tails from DVD without network and logged in 6.794
And I prepare Tails for memory erasure tests 0.326
And I find very few patterns in the guest's memory 1.847 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.497
Then patterns cover at least 99% of the test FS size in the guest's memory 1.918 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.356
Then I find very few patterns in the guest's memory after 3 seconds 4.836 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 0.672
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
34.268
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 7.248
And I prepare Tails for memory erasure tests 0.409
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.524
Then I find very few patterns in the guest's memory 1.747 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.849
Then patterns cover at least 75% of the test FS size in the guest's memory 2.216 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.937
Then I find very few patterns in the guest's memory after 3 seconds 5.211 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
# read cache
When I mount the USB drive again 0.217
And I read the content of the test FS 0.538
Then patterns cover at least 99% of the test FS size in the guest's memory 2.216 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.404
Then I find very few patterns in the guest's memory after 3 seconds 4.746 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:339 1.038
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:3.385
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 7.033
And I prepare Tails for memory erasure tests 0.443
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.794
Then I find very few patterns in the guest's memory 1.744 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.197
Then patterns cover at least 99% of the test FS size in the guest's memory 2.121 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.636
Then I find very few patterns in the guest's memory after 3 seconds 4.954 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
# read cache
When I mount the USB drive again 5.079
And I read the content of the test FS 0.326
Then patterns cover at least 99% of the test FS size in the guest's memory 1.878 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.383
Then I find very few patterns in the guest's memory after 3 seconds 4.789 
Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)
After features/support/hooks.rb:339 0.905
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.925
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 6.987
And I prepare Tails for memory erasure tests 0.457
When I fill a 128 MiB file with a known pattern on the root filesystem 30.511
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.561
Then patterns cover at least 128 MiB in the guest's memory 1.657 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.744 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:339 3.673
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:48.409
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 4:0.995
And I prepare Tails for memory erasure tests 0.399
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.073
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.935 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:339 3.866
After features/support/hooks.rb:108 0.012