Project Number Date
test_Tails_ISO_stable 6697 28 Sep 2026, 16:20

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 7:41.418 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
20.601
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.005
Given I have started Tails from DVD without network and logged in 7.108
And I prepare Tails for memory erasure tests 0.337
When I start a process allocating 128 MiB of memory with a known pattern 2.176
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.719 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.264
Then I find very few patterns in the guest's memory after 5 seconds 7.994 
Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)
After features/support/hooks.rb:339 0.622
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
21.988
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 6.371
And I prepare Tails for memory erasure tests 0.250
And I find very few patterns in the guest's memory 3.128 
Pattern coverage: 0.000% (0 MiB out of 1402 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.382
Then patterns cover at least 99% of the test FS size in the guest's memory 4.736 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.346
Then I find very few patterns in the guest's memory after 3 seconds 5.772 
Pattern coverage: 0.000% (0 MiB out of 1402 MiB reference memory)
After features/support/hooks.rb:339 0.754
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.552
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.302
And I prepare Tails for memory erasure tests 0.429
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.847
Then I find very few patterns in the guest's memory 3.110 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.566
Then patterns cover at least 75% of the test FS size in the guest's memory 6.447 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.612
Then I find very few patterns in the guest's memory after 3 seconds 7.286 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
# read cache
When I mount the USB drive again 0.238
And I read the content of the test FS 0.702
Then patterns cover at least 99% of the test FS size in the guest's memory 2.719 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.504
Then I find very few patterns in the guest's memory after 3 seconds 5.784 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
After features/support/hooks.rb:339 0.636
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:12.017
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 18.188
And I prepare Tails for memory erasure tests 0.285
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.393
Then I find very few patterns in the guest's memory 2.559 
Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 0.979
Then patterns cover at least 99% of the test FS size in the guest's memory 3.429 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 1.006
Then I find very few patterns in the guest's memory after 3 seconds 5.611 
Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)
# read cache
When I mount the USB drive again 3.187
And I read the content of the test FS 0.343
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 0.387
Then I find very few patterns in the guest's memory after 3 seconds 5.978 
Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)
After features/support/hooks.rb:339 0.723
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.394
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 6.381
And I prepare Tails for memory erasure tests 0.294
When I fill a 128 MiB file with a known pattern on the root filesystem 12.835
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.541
Then patterns cover at least 128 MiB in the guest's memory 2.247 
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 21.086 
Pattern coverage: 0.000% (0 MiB out of 1402 MiB reference memory)
After features/support/hooks.rb:339 3.624
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:18.864
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 3:48.041
And I prepare Tails for memory erasure tests 0.230
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.405
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 21.180 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
After features/support/hooks.rb:339 3.860
After features/support/hooks.rb:108 0.011