Project Number Date
test_Tails_ISO_stable 6724 06 Oct 2026, 07:36

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 7:39.503 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
20.442
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 6.444
And I prepare Tails for memory erasure tests 0.351
When I start a process allocating 128 MiB of memory with a known pattern 2.224
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.981 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.821
Then I find very few patterns in the guest's memory after 5 seconds 7.618 
Pattern coverage: 0.000% (0 MiB out of 1424 MiB reference memory)
After features/support/hooks.rb:339 0.844
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.609
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 6.525
And I prepare Tails for memory erasure tests 0.308
And I find very few patterns in the guest's memory 2.709 
Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.511
Then patterns cover at least 99% of the test FS size in the guest's memory 3.329 
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 5.869 
Pattern coverage: 0.000% (0 MiB out of 1420 MiB reference memory)
After features/support/hooks.rb:339 0.609
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
37.121
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 6.477
And I prepare Tails for memory erasure tests 0.303
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.468
Then I find very few patterns in the guest's memory 2.588 
Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.663
Then patterns cover at least 75% of the test FS size in the guest's memory 3.100 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.742
Then I find very few patterns in the guest's memory after 3 seconds 5.684 
Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)
# read cache
When I mount the USB drive again 0.191
And I read the content of the test FS 0.650
Then patterns cover at least 99% of the test FS size in the guest's memory 2.831 
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 6.024 
Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)
After features/support/hooks.rb:339 0.742
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.401
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 6.436
And I prepare Tails for memory erasure tests 0.343
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.601
Then I find very few patterns in the guest's memory 2.750 
Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.031
Then patterns cover at least 99% of the test FS size in the guest's memory 2.880 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.506
Then I find very few patterns in the guest's memory after 3 seconds 5.471 
Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)
# read cache
When I mount the USB drive again 3.912
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 3.042 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.443
Then I find very few patterns in the guest's memory after 3 seconds 5.610 
Pattern coverage: 0.000% (0 MiB out of 1412 MiB reference memory)
After features/support/hooks.rb:339 0.892
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.485
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 6.437
And I prepare Tails for memory erasure tests 0.335
When I fill a 128 MiB file with a known pattern on the root filesystem 12.180
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.603
Then patterns cover at least 128 MiB in the guest's memory 2.168 
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 20.753 
Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)
After features/support/hooks.rb:339 3.528
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:36.441
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 4:4.978
And I prepare Tails for memory erasure tests 0.490
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.870
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.097 
Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)
After features/support/hooks.rb:339 3.768
After features/support/hooks.rb:108 0.010