Project Number Date
test_Tails_ISO_stable 6738 12 Oct 2026, 12:32

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 7:46.557 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
31.816
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 18.314
And I prepare Tails for memory erasure tests 0.377
When I start a process allocating 128 MiB of memory with a known pattern 2.322
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.936 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.208
Then I find very few patterns in the guest's memory after 5 seconds 7.657 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
After features/support/hooks.rb:339 0.911
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.437
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 6.406
And I prepare Tails for memory erasure tests 0.336
And I find very few patterns in the guest's memory 2.773 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.576
Then patterns cover at least 99% of the test FS size in the guest's memory 3.171 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.404
Then I find very few patterns in the guest's memory after 3 seconds 5.767 
Pattern coverage: 0.000% (0 MiB out of 1414 MiB reference memory)
After features/support/hooks.rb:339 0.795
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
38.370
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 6.545
And I prepare Tails for memory erasure tests 0.302
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.304
Then I find very few patterns in the guest's memory 3.712 
Pattern coverage: 0.000% (0 MiB out of 1415 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.711
Then patterns cover at least 75% of the test FS size in the guest's memory 3.245 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.735
Then I find very few patterns in the guest's memory after 3 seconds 5.749 
Pattern coverage: 0.000% (0 MiB out of 1415 MiB reference memory)
# read cache
When I mount the USB drive again 0.184
And I read the content of the test FS 0.596
Then patterns cover at least 99% of the test FS size in the guest's memory 3.036 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.426
Then I find very few patterns in the guest's memory after 3 seconds 5.820 
Pattern coverage: 0.000% (0 MiB out of 1415 MiB reference memory)
After features/support/hooks.rb:339 0.876
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:3.928
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 6.541
And I prepare Tails for memory erasure tests 0.359
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.985
Then I find very few patterns in the guest's memory 2.869 
Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.427
Then patterns cover at least 99% of the test FS size in the guest's memory 3.481 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.577
Then I find very few patterns in the guest's memory after 3 seconds 5.862 
Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)
# read cache
When I mount the USB drive again 3.706
And I read the content of the test FS 0.408
Then patterns cover at least 99% of the test FS size in the guest's memory 3.541 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.604
Then I find very few patterns in the guest's memory after 3 seconds 5.561 
Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)
After features/support/hooks.rb:339 0.832
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
45.741
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 6.571
And I prepare Tails for memory erasure tests 0.384
When I fill a 128 MiB file with a known pattern on the root filesystem 13.872
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.785
Then patterns cover at least 128 MiB in the guest's memory 2.289 
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 20.829 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
After features/support/hooks.rb:339 3.916
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:26.263
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:55.335
And I prepare Tails for memory erasure tests 0.311
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.256
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.354 
Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)
After features/support/hooks.rb:339 3.507
After features/support/hooks.rb:108 0.043