Project Number Date
test_Tails_ISO_test-snapshot-restore-improvements 10 24 Aug 2026, 12:04

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 12:28.582 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
16.681
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 3.328
And I prepare Tails for memory erasure tests 0.305
When I start a process allocating 128 MiB of memory with a known pattern 2.303
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.837 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.230
Then I find very few patterns in the guest's memory after 5 seconds 7.675 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:339 1.053
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
16.732
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 3.572
And I prepare Tails for memory erasure tests 0.281
And I find very few patterns in the guest's memory 2.725 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.231
Then patterns cover at least 99% of the test FS size in the guest's memory 2.836 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.288
Then I find very few patterns in the guest's memory after 3 seconds 5.796 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:339 1.008
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
33.082
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 3.207
And I prepare Tails for memory erasure tests 0.326
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.201
Then I find very few patterns in the guest's memory 2.640 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.496
Then patterns cover at least 75% of the test FS size in the guest's memory 2.835 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.633
Then I find very few patterns in the guest's memory after 3 seconds 5.683 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# read cache
When I mount the USB drive again 0.175
And I read the content of the test FS 0.619
Then patterns cover at least 99% of the test FS size in the guest's memory 3.041 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.431
Then I find very few patterns in the guest's memory after 3 seconds 5.787 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:339 0.650
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:0.109
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 3.200
And I prepare Tails for memory erasure tests 0.293
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.745
Then I find very few patterns in the guest's memory 2.536 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.195
Then patterns cover at least 99% of the test FS size in the guest's memory 2.770 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.439
Then I find very few patterns in the guest's memory after 3 seconds 5.587 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# read cache
When I mount the USB drive again 4.155
And I read the content of the test FS 0.405
Then patterns cover at least 99% of the test FS size in the guest's memory 2.778 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.424
Then I find very few patterns in the guest's memory after 3 seconds 5.576 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:339 0.667
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
41.816
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 3.264
And I prepare Tails for memory erasure tests 1.282
When I fill a 128 MiB file with a known pattern on the root filesystem 13.031
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.385
Then patterns cover at least 128 MiB in the guest's memory 2.149 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.694 
Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)
After features/support/hooks.rb:339 3.721
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
9:40.159
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 9:7.271
And I prepare Tails for memory erasure tests 0.307
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.604
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.972 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:339 3.642
After features/support/hooks.rb:108 0.010