Project Number Date
test_Tails_ISO_stable 6585 17 Aug 2026, 17:37

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 7:54.439 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
20.091
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 6.486
And I prepare Tails for memory erasure tests 0.370
When I start a process allocating 128 MiB of memory with a known pattern 2.225
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.133 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.185
Then I find very few patterns in the guest's memory after 5 seconds 7.689 
Pattern coverage: 0.000% (0 MiB out of 1469 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
20.586
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 6.593
And I prepare Tails for memory erasure tests 0.371
And I find very few patterns in the guest's memory 3.081 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.370
Then patterns cover at least 99% of the test FS size in the guest's memory 3.035 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.354
Then I find very few patterns in the guest's memory after 3 seconds 5.779 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:339 0.635
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
36.758
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 6.529
And I prepare Tails for memory erasure tests 0.363
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.397
Then I find very few patterns in the guest's memory 2.691 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.498
Then patterns cover at least 75% of the test FS size in the guest's memory 3.132 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.610
Then I find very few patterns in the guest's memory after 3 seconds 5.601 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 0.183
And I read the content of the test FS 0.671
Then patterns cover at least 99% of the test FS size in the guest's memory 3.003 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.391
Then I find very few patterns in the guest's memory after 3 seconds 5.684 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:339 1.102
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:15.233
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 18.203
And I prepare Tails for memory erasure tests 0.339
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.287
Then I find very few patterns in the guest's memory 2.754 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.239
Then patterns cover at least 99% of the test FS size in the guest's memory 3.063 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.544
Then I find very few patterns in the guest's memory after 3 seconds 5.721 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
# read cache
When I mount the USB drive again 4.452
And I read the content of the test FS 0.377
Then patterns cover at least 99% of the test FS size in the guest's memory 2.983 
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 5.808 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:339 0.999
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.793
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 6.281
And I prepare Tails for memory erasure tests 0.439
When I fill a 128 MiB file with a known pattern on the root filesystem 12.503
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.579
Then patterns cover at least 128 MiB in the guest's memory 2.167 
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 20.817 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:339 3.759
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:37.975
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 4:6.231
And I prepare Tails for memory erasure tests 0.334
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.224
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.178 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
After features/support/hooks.rb:339 3.776
After features/support/hooks.rb:108 0.008