Project Number Date
test_Tails_ISO_stable 6619 01 Sep 2026, 11:39

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 7:25.476 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
20.020
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 6.517
And I prepare Tails for memory erasure tests 0.333
When I start a process allocating 128 MiB of memory with a known pattern 2.178
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.005 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.243
Then I find very few patterns in the guest's memory after 5 seconds 7.742 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:339 0.831
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.395
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 6.460
And I prepare Tails for memory erasure tests 0.275
And I find very few patterns in the guest's memory 2.635 
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 1.590
Then patterns cover at least 99% of the test FS size in the guest's memory 3.302 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.399
Then I find very few patterns in the guest's memory after 3 seconds 5.731 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:339 1.034
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
37.714
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 6.254
And I prepare Tails for memory erasure tests 0.379
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.559
Then I find very few patterns in the guest's memory 2.961 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.583
Then patterns cover at least 75% of the test FS size in the guest's memory 3.114 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.687
Then I find very few patterns in the guest's memory after 3 seconds 5.779 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
# read cache
When I mount the USB drive again 0.194
And I read the content of the test FS 0.655
Then patterns cover at least 99% of the test FS size in the guest's memory 3.213 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.581
Then I find very few patterns in the guest's memory after 3 seconds 5.749 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:339 1.072
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:4.985
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 6.442
And I prepare Tails for memory erasure tests 0.315
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.723
Then I find very few patterns in the guest's memory 2.715 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.194
Then patterns cover at least 99% of the test FS size in the guest's memory 2.756 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.495
Then I find very few patterns in the guest's memory after 3 seconds 5.579 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 4.503
And I read the content of the test FS 0.412
Then patterns cover at least 99% of the test FS size in the guest's memory 2.857 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.462
Then I find very few patterns in the guest's memory after 3 seconds 5.524 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 0.759
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.376
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 6.121
And I prepare Tails for memory erasure tests 0.339
When I fill a 128 MiB file with a known pattern on the root filesystem 12.849
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.378
Then patterns cover at least 128 MiB in the guest's memory 1.939 
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 20.742 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:339 3.638
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:18.983
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.006
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:48.501
And I prepare Tails for memory erasure tests 0.287
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.102
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 21.081 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
After features/support/hooks.rb:339 3.830
After features/support/hooks.rb:108 0.020