Project Number Date
test_Tails_ISO_stable 5914 28 Oct 2025, 09:25

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 14:53.975 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
47.176
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 8.641
And I prepare Tails for memory erasure tests 0.432
When I start a process allocating 128 MiB of memory with a known pattern 2.295
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.455 
Pattern coverage: 100.394% (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 20.131 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 0.679
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
58.905
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 8.640
And I prepare Tails for memory erasure tests 0.445
And I find very few patterns in the guest's memory 15.526 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.080
Then patterns cover at least 99% of the test FS size in the guest's memory 15.252 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.383
Then I find very few patterns in the guest's memory after 3 seconds 16.575 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
After features/support/hooks.rb:331 1.047
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:48.805
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 8.635
And I prepare Tails for memory erasure tests 0.485
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.904
Then I find very few patterns in the guest's memory 14.292 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.663
Then patterns cover at least 75% of the test FS size in the guest's memory 17.871 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.841
Then I find very few patterns in the guest's memory after 3 seconds 17.522 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
# read cache
When I mount the USB drive again 0.211
And I read the content of the test FS 0.856
Then patterns cover at least 99% of the test FS size in the guest's memory 18.273 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.534
Then I find very few patterns in the guest's memory after 3 seconds 19.713 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
After features/support/hooks.rb:331 0.996
After features/support/hooks.rb:100 0.003
Tags: @product @slow @not_release_blocker
2:39.693
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.016
Given I have started Tails from DVD without network and logged in 8.746
And I prepare Tails for memory erasure tests 0.441
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.145
Then I find very few patterns in the guest's memory 13.669 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.943
Then patterns cover at least 99% of the test FS size in the guest's memory 14.548 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.655
Then I find very few patterns in the guest's memory after 3 seconds 18.336 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# read cache
When I mount the USB drive again 5.488
And I read the content of the test FS 0.709
Then patterns cover at least 99% of the test FS size in the guest's memory 20.689 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.595
Then I find very few patterns in the guest's memory after 3 seconds 40.724 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 0.944
After features/support/hooks.rb:100 0.001
Tags: @product @slow @not_release_blocker
1:10.006
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 8.392
And I prepare Tails for memory erasure tests 0.381
When I fill a 128 MiB file with a known pattern on the root filesystem 11.061
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.042
Then patterns cover at least 128 MiB in the guest's memory 21.731 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 25.386 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
After features/support/hooks.rb:331 4.099
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:29.388
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.026
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:56.079
And I prepare Tails for memory erasure tests 0.444
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.417
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 23.435 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 3.625
After features/support/hooks.rb:100 0.015