Project Number Date
test_Tails_ISO_stable 6728 07 Oct 2026, 14:01

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 7:34.023 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
19.920
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 6.376
And I prepare Tails for memory erasure tests 0.361
When I start a process allocating 128 MiB of memory with a known pattern 2.319
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.001 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.200
Then I find very few patterns in the guest's memory after 5 seconds 7.660 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
After features/support/hooks.rb:339 0.817
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
20.681
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 6.451
And I prepare Tails for memory erasure tests 0.339
And I find very few patterns in the guest's memory 3.055 
Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.616
Then patterns cover at least 99% of the test FS size in the guest's memory 2.998 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.441
Then I find very few patterns in the guest's memory after 3 seconds 5.777 
Pattern coverage: 0.000% (0 MiB out of 1400 MiB reference memory)
After features/support/hooks.rb:339 1.097
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
37.993
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 6.395
And I prepare Tails for memory erasure tests 0.382
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.554
Then I find very few patterns in the guest's memory 2.852 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.595
Then patterns cover at least 75% of the test FS size in the guest's memory 3.099 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.703
Then I find very few patterns in the guest's memory after 3 seconds 5.756 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
# read cache
When I mount the USB drive again 0.241
And I read the content of the test FS 0.688
Then patterns cover at least 99% of the test FS size in the guest's memory 3.495 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.417
Then I find very few patterns in the guest's memory after 3 seconds 5.809 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
After features/support/hooks.rb:339 0.790
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:1.078
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 6.794
And I prepare Tails for memory erasure tests 0.443
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.309
Then I find very few patterns in the guest's memory 2.626 
Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.040
Then patterns cover at least 99% of the test FS size in the guest's memory 2.797 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.542
Then I find very few patterns in the guest's memory after 3 seconds 5.832 
Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)
# read cache
When I mount the USB drive again 3.526
And I read the content of the test FS 0.358
Then patterns cover at least 99% of the test FS size in the guest's memory 2.831 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.455
Then I find very few patterns in the guest's memory after 3 seconds 5.518 
Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)
After features/support/hooks.rb:339 0.714
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
45.137
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 0.341
When I fill a 128 MiB file with a known pattern on the root filesystem 13.150
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.575
Then patterns cover at least 128 MiB in the guest's memory 2.649 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.873 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
After features/support/hooks.rb:339 3.390
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:29.213
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 3:58.515
And I prepare Tails for memory erasure tests 0.288
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.333
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.071 
Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)
After features/support/hooks.rb:339 3.500
After features/support/hooks.rb:108 0.020