Project Number Date
test_Tails_ISO_21318-tor-browser-16.0 21 22 Jun 2026, 08:22

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 8:3.417 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
18.602
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.017
Given I have started Tails from DVD without network and logged in 6.826
And I prepare Tails for memory erasure tests 0.312
When I start a process allocating 128 MiB of memory with a known pattern 2.203
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.242 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.220
Then I find very few patterns in the guest's memory after 5 seconds 6.796 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:339 0.631
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
18.165
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.017
Given I have started Tails from DVD without network and logged in 6.800
And I prepare Tails for memory erasure tests 0.383
And I find very few patterns in the guest's memory 2.253 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.685
Then patterns cover at least 99% of the test FS size in the guest's memory 2.020 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.294
Then I find very few patterns in the guest's memory after 3 seconds 4.727 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 0.602
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
32.352
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.019
Given I have started Tails from DVD without network and logged in 6.961
And I prepare Tails for memory erasure tests 0.388
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.647
Then I find very few patterns in the guest's memory 1.695 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.562
Then patterns cover at least 75% of the test FS size in the guest's memory 2.104 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.675
Then I find very few patterns in the guest's memory after 3 seconds 4.685 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 0.165
And I read the content of the test FS 0.402
Then patterns cover at least 99% of the test FS size in the guest's memory 1.895 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.355
Then I find very few patterns in the guest's memory after 3 seconds 4.812 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 0.914
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
56.205
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.018
Given I have started Tails from DVD without network and logged in 7.019
And I prepare Tails for memory erasure tests 0.382
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.739
Then I find very few patterns in the guest's memory 1.862 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.350
Then patterns cover at least 99% of the test FS size in the guest's memory 2.004 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.528
Then I find very few patterns in the guest's memory after 3 seconds 4.608 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 3.785
And I read the content of the test FS 0.268
Then patterns cover at least 99% of the test FS size in the guest's memory 1.715 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.388
Then I find very few patterns in the guest's memory after 3 seconds 4.553 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 0.963
After features/support/hooks.rb:108 0.007
Tags: @product @slow @not_release_blocker
1:5.513
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.028
Given I have started Tails from DVD without network and logged in 6.986
And I prepare Tails for memory erasure tests 0.375
When I fill a 128 MiB file with a known pattern on the root filesystem 34.112
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.935
Then patterns cover at least 128 MiB in the guest's memory 1.489 
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 20.607 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:339 3.642
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:52.579
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.018
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:4.928
And I prepare Tails for memory erasure tests 0.352
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.299
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.990 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:339 3.744
After features/support/hooks.rb:108 0.052