Project Number Date
test_Tails_ISO_devel 4497 16 Jul 2026, 11:11

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 7:37.337 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
17.835
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 6.557
And I prepare Tails for memory erasure tests 0.317
When I start a process allocating 128 MiB of memory with a known pattern 2.200
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.836 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.181
Then I find very few patterns in the guest's memory after 5 seconds 6.743 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:339 1.006
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
16.971
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 6.499
And I prepare Tails for memory erasure tests 0.340
And I find very few patterns in the guest's memory 1.602 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.619
Then patterns cover at least 99% of the test FS size in the guest's memory 1.828 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.322
Then I find very few patterns in the guest's memory after 3 seconds 4.759 
Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)
After features/support/hooks.rb:339 0.772
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.379
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 6.491
And I prepare Tails for memory erasure tests 0.317
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.091
Then I find very few patterns in the guest's memory 1.726 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.576
Then patterns cover at least 75% of the test FS size in the guest's memory 2.097 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.707
Then I find very few patterns in the guest's memory after 3 seconds 4.694 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
# read cache
When I mount the USB drive again 0.176
And I read the content of the test FS 0.493
Then patterns cover at least 99% of the test FS size in the guest's memory 1.938 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.395
Then I find very few patterns in the guest's memory after 3 seconds 4.673 
Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)
After features/support/hooks.rb:339 0.863
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
56.622
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 6.568
And I prepare Tails for memory erasure tests 0.392
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.070
Then I find very few patterns in the guest's memory 1.678 
Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.120
Then patterns cover at least 99% of the test FS size in the guest's memory 1.831 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.502
Then I find very few patterns in the guest's memory after 3 seconds 4.823 
Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)
# read cache
When I mount the USB drive again 4.561
And I read the content of the test FS 0.323
Then patterns cover at least 99% of the test FS size in the guest's memory 1.790 
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 4.523 
Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)
After features/support/hooks.rb:339 0.713
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.451
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 6.585
And I prepare Tails for memory erasure tests 0.436
When I fill a 128 MiB file with a known pattern on the root filesystem 30.573
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.841
Then patterns cover at least 128 MiB in the guest's memory 1.471 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.009
Then I find very few patterns in the guest's memory after 20 seconds 20.531 
Pattern coverage: 0.000% (0 MiB out of 1463 MiB reference memory)
After features/support/hooks.rb:339 3.653
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:33.077
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 3:45.529
And I prepare Tails for memory erasure tests 0.376
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.234
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.931 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:339 3.698
After features/support/hooks.rb:108 0.013