Project Number Date
test_Tails_ISO_stable 6254 01 Apr 2026, 11:22

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 7:30.658 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
18.886
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 7.511
And I prepare Tails for memory erasure tests 0.415
When I start a process allocating 128 MiB of memory with a known pattern 1.205
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.464 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.318
Then I find very few patterns in the guest's memory after 5 seconds 6.971 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:331 0.869
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.379
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.805
And I prepare Tails for memory erasure tests 0.438
And I find very few patterns in the guest's memory 2.082 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.356
Then patterns cover at least 99% of the test FS size in the guest's memory 2.427 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.392
Then I find very few patterns in the guest's memory after 3 seconds 4.877 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.870
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
35.437
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 7.217
And I prepare Tails for memory erasure tests 0.422
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.037
Then I find very few patterns in the guest's memory 2.560 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.169
Then patterns cover at least 75% of the test FS size in the guest's memory 2.000 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.826
Then I find very few patterns in the guest's memory after 3 seconds 4.828 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
# read cache
When I mount the USB drive again 0.258
And I read the content of the test FS 0.627
Then patterns cover at least 99% of the test FS size in the guest's memory 2.691 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.465
Then I find very few patterns in the guest's memory after 3 seconds 5.329 
Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)
After features/support/hooks.rb:331 0.997
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
54.381
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.807
And I prepare Tails for memory erasure tests 0.469
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 24.613
Then I find very few patterns in the guest's memory 1.889 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.366
Then patterns cover at least 99% of the test FS size in the guest's memory 2.350 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.744
Then I find very few patterns in the guest's memory after 3 seconds 4.667 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 3.813
And I read the content of the test FS 0.330
Then patterns cover at least 99% of the test FS size in the guest's memory 1.901 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.400
Then I find very few patterns in the guest's memory after 3 seconds 5.026 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 1.226
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.922
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.838
And I prepare Tails for memory erasure tests 0.364
When I fill a 128 MiB file with a known pattern on the root filesystem 13.142
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.241
Then patterns cover at least 128 MiB in the guest's memory 1.618 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.712 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 3.665
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:38.651
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:5.597
And I prepare Tails for memory erasure tests 0.421
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.643
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.984 
Pattern coverage: 0.000% (0 MiB out of 1524 MiB reference memory)
After features/support/hooks.rb:331 3.676
After features/support/hooks.rb:100 0.046