Project Number Date
test_Tails_ISO_21318-tor-browser-16.0 1 04 Jun 2026, 17:08

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 7:29.613 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
17.641
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.555
And I prepare Tails for memory erasure tests 0.414
When I start a process allocating 128 MiB of memory with a known pattern 1.206
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.396 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.190
Then I find very few patterns in the guest's memory after 5 seconds 6.878 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:335 0.704
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.716
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.500
And I prepare Tails for memory erasure tests 0.436
And I find very few patterns in the guest's memory 1.666 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.662
Then patterns cover at least 99% of the test FS size in the guest's memory 2.193 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.350
Then I find very few patterns in the guest's memory after 3 seconds 4.906 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:335 1.112
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
32.841
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.615
And I prepare Tails for memory erasure tests 0.475
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.290
Then I find very few patterns in the guest's memory 1.847 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.665
Then patterns cover at least 75% of the test FS size in the guest's memory 2.182 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.733
Then I find very few patterns in the guest's memory after 3 seconds 4.779 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 0.162
And I read the content of the test FS 0.439
Then patterns cover at least 99% of the test FS size in the guest's memory 2.190 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.372
Then I find very few patterns in the guest's memory after 3 seconds 5.087 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:335 0.976
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
56.887
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.746
And I prepare Tails for memory erasure tests 0.388
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.489
Then I find very few patterns in the guest's memory 1.733 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.474
Then patterns cover at least 99% of the test FS size in the guest's memory 2.026 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.505
Then I find very few patterns in the guest's memory after 3 seconds 4.835 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
# read cache
When I mount the USB drive again 3.418
And I read the content of the test FS 0.276
Then patterns cover at least 99% of the test FS size in the guest's memory 1.875 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.429
Then I find very few patterns in the guest's memory after 3 seconds 4.686 
Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)
After features/support/hooks.rb:335 1.113
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
50.954
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.846
And I prepare Tails for memory erasure tests 0.360
When I fill a 128 MiB file with a known pattern on the root filesystem 19.854
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.770
Then patterns cover at least 128 MiB in the guest's memory 1.603 
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 20.511 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:335 3.669
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:33.572
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:54.306
And I prepare Tails for memory erasure tests 0.358
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.934
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 20.963 
Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)
After features/support/hooks.rb:335 3.680
After features/support/hooks.rb:104 0.009