Project Number Date
test_Tails_ISO_devel 4337 12 Apr 2026, 11:05

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 7:2.638 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
17.248
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 6.498
And I prepare Tails for memory erasure tests 0.374
When I start a process allocating 128 MiB of memory with a known pattern 1.157
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.874 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.649
Then I find very few patterns in the guest's memory after 5 seconds 6.693 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 0.969
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
16.590
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 6.389
And I prepare Tails for memory erasure tests 0.362
And I find very few patterns in the guest's memory 1.638 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.256
Then patterns cover at least 99% of the test FS size in the guest's memory 1.849 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.278
Then I find very few patterns in the guest's memory after 3 seconds 4.816 
Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)
After features/support/hooks.rb:331 0.610
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
30.832
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 6.647
And I prepare Tails for memory erasure tests 0.335
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.093
Then I find very few patterns in the guest's memory 1.770 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.026
Then patterns cover at least 75% of the test FS size in the guest's memory 2.016 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.652
Then I find very few patterns in the guest's memory after 3 seconds 4.844 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
# read cache
When I mount the USB drive again 0.165
And I read the content of the test FS 0.407
Then patterns cover at least 99% of the test FS size in the guest's memory 1.959 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.296
Then I find very few patterns in the guest's memory after 3 seconds 4.617 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:331 0.913
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.534
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 6.485
And I prepare Tails for memory erasure tests 0.334
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.568
Then I find very few patterns in the guest's memory 1.697 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.055
Then patterns cover at least 99% of the test FS size in the guest's memory 1.724 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.475
Then I find very few patterns in the guest's memory after 3 seconds 4.579 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
# read cache
When I mount the USB drive again 4.394
And I read the content of the test FS 0.279
Then patterns cover at least 99% of the test FS size in the guest's memory 1.874 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.442
Then I find very few patterns in the guest's memory after 3 seconds 4.623 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 0.775
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
43.259
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 6.416
And I prepare Tails for memory erasure tests 0.425
When I fill a 128 MiB file with a known pattern on the root filesystem 12.435
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.875
Then patterns cover at least 128 MiB in the guest's memory 1.586 
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 20.513 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 3.781
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:18.172
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 3:46.812
And I prepare Tails for memory erasure tests 0.297
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.090
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.966 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
After features/support/hooks.rb:331 3.535
After features/support/hooks.rb:100 0.011