Project Number Date
test_Tails_ISO_stable 6572 11 Aug 2026, 11:36

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 7:45.896 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
19.232
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 6.256
And I prepare Tails for memory erasure tests 0.301
When I start a process allocating 128 MiB of memory with a known pattern 2.175
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.801 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.203
Then I find very few patterns in the guest's memory after 5 seconds 7.493 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:339 0.971
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.591
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 18.023
And I prepare Tails for memory erasure tests 0.250
And I find very few patterns in the guest's memory 2.747 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.542
Then patterns cover at least 99% of the test FS size in the guest's memory 2.971 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.365
Then I find very few patterns in the guest's memory after 3 seconds 5.690 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:339 0.615
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
36.197
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 6.264
And I prepare Tails for memory erasure tests 0.286
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.325
Then I find very few patterns in the guest's memory 2.607 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.448
Then patterns cover at least 75% of the test FS size in the guest's memory 2.985 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.661
Then I find very few patterns in the guest's memory after 3 seconds 5.770 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 0.194
And I read the content of the test FS 0.695
Then patterns cover at least 99% of the test FS size in the guest's memory 2.874 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.433
Then I find very few patterns in the guest's memory after 3 seconds 5.651 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 1.000
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:2.398
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 6.425
And I prepare Tails for memory erasure tests 0.365
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.982
Then I find very few patterns in the guest's memory 2.545 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.188
Then patterns cover at least 99% of the test FS size in the guest's memory 2.806 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.512
Then I find very few patterns in the guest's memory after 3 seconds 5.493 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
# read cache
When I mount the USB drive again 4.113
And I read the content of the test FS 0.370
Then patterns cover at least 99% of the test FS size in the guest's memory 2.707 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.434
Then I find very few patterns in the guest's memory after 3 seconds 5.451 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:339 0.842
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.537
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 6.409
And I prepare Tails for memory erasure tests 0.363
When I fill a 128 MiB file with a known pattern on the root filesystem 12.938
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.565
Then patterns cover at least 128 MiB in the guest's memory 2.551 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.703 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:339 3.472
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:31.939
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 3:59.121
And I prepare Tails for memory erasure tests 0.301
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.449
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.062 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:339 3.762
After features/support/hooks.rb:108 0.010