Project Number Date
test_Tails_ISO_stable 6253 01 Apr 2026, 11:13

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 7:47.874 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
18.522
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 6.596
And I prepare Tails for memory erasure tests 0.606
When I start a process allocating 128 MiB of memory with a known pattern 1.197
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.659 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.228
Then I find very few patterns in the guest's memory after 5 seconds 7.233 
Pattern coverage: 0.000% (0 MiB out of 1462 MiB reference memory)
After features/support/hooks.rb:331 0.850
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.719
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 6.863
And I prepare Tails for memory erasure tests 0.402
And I find very few patterns in the guest's memory 2.329 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.839
Then patterns cover at least 99% of the test FS size in the guest's memory 2.531 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.466
Then I find very few patterns in the guest's memory after 3 seconds 5.286 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
After features/support/hooks.rb:331 1.232
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
36.575
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 6.688
And I prepare Tails for memory erasure tests 0.528
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.574
Then I find very few patterns in the guest's memory 2.274 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.497
Then patterns cover at least 75% of the test FS size in the guest's memory 2.549 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.697
Then I find very few patterns in the guest's memory after 3 seconds 4.965 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
# read cache
When I mount the USB drive again 0.171
And I read the content of the test FS 0.529
Then patterns cover at least 99% of the test FS size in the guest's memory 3.170 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.440
Then I find very few patterns in the guest's memory after 3 seconds 5.487 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:331 0.835
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:5.339
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 6.949
And I prepare Tails for memory erasure tests 0.471
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.842
Then I find very few patterns in the guest's memory 1.981 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.172
Then patterns cover at least 99% of the test FS size in the guest's memory 1.867 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.564
Then I find very few patterns in the guest's memory after 3 seconds 5.270 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
# read cache
When I mount the USB drive again 4.758
And I read the content of the test FS 0.367
Then patterns cover at least 99% of the test FS size in the guest's memory 2.679 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.493
Then I find very few patterns in the guest's memory after 3 seconds 4.919 
Pattern coverage: 0.000% (0 MiB out of 1464 MiB reference memory)
After features/support/hooks.rb:331 0.930
After features/support/hooks.rb:100 0.001
Tags: @product @slow @not_release_blocker
45.426
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 7.268
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 13.346
# 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 1.564 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.028
Then I find very few patterns in the guest's memory after 20 seconds 20.856 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:331 4.222
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:42.290
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:8.469
And I prepare Tails for memory erasure tests 0.323
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.762
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 21.725 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 3.598
After features/support/hooks.rb:100 0.031