Project Number Date
test_Tails_ISO_21756-better-support-build-machine 1 30 Sep 2026, 19:11

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 8:3.055 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
21.001
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.856
And I prepare Tails for memory erasure tests 0.445
When I start a process allocating 128 MiB of memory with a known pattern 2.254
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.000 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.760
Then I find very few patterns in the guest's memory after 5 seconds 7.684 
Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)
After features/support/hooks.rb:339 0.812
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
21.114
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.591
And I prepare Tails for memory erasure tests 0.429
And I find very few patterns in the guest's memory 2.921 
Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.574
Then patterns cover at least 99% of the test FS size in the guest's memory 3.439 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.362
Then I find very few patterns in the guest's memory after 3 seconds 5.796 
Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)
After features/support/hooks.rb:339 0.648
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
40.189
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.449
And I prepare Tails for memory erasure tests 0.496
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.372
Then I find very few patterns in the guest's memory 3.174 
Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.735
Then patterns cover at least 75% of the test FS size in the guest's memory 3.163 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.727
Then I find very few patterns in the guest's memory after 3 seconds 5.803 
Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)
# read cache
When I mount the USB drive again 0.243
And I read the content of the test FS 0.565
Then patterns cover at least 99% of the test FS size in the guest's memory 5.156 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.525
Then I find very few patterns in the guest's memory after 3 seconds 5.774 
Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)
After features/support/hooks.rb:339 0.556
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:6.378
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.398
And I prepare Tails for memory erasure tests 0.446
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.887
Then I find very few patterns in the guest's memory 2.849 
Pattern coverage: 0.000% (0 MiB out of 1395 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.276
Then patterns cover at least 99% of the test FS size in the guest's memory 2.892 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.553
Then I find very few patterns in the guest's memory after 3 seconds 5.889 
Pattern coverage: 0.000% (0 MiB out of 1395 MiB reference memory)
# read cache
When I mount the USB drive again 4.523
And I read the content of the test FS 0.490
Then patterns cover at least 99% of the test FS size in the guest's memory 2.798 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.477
Then I find very few patterns in the guest's memory after 3 seconds 5.893 
Pattern coverage: 0.000% (0 MiB out of 1395 MiB reference memory)
After features/support/hooks.rb:339 0.957
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
45.480
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.006
Given I have started Tails from DVD without network and logged in 6.781
And I prepare Tails for memory erasure tests 0.519
When I fill a 128 MiB file with a known pattern on the root filesystem 12.881
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.046
Then patterns cover at least 128 MiB in the guest's memory 2.510 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.736 
Pattern coverage: 0.000% (0 MiB out of 1389 MiB reference memory)
After features/support/hooks.rb:339 3.616
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:48.891
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:16.751
And I prepare Tails for memory erasure tests 0.264
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.132
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.739 
Pattern coverage: 0.000% (0 MiB out of 1393 MiB reference memory)
After features/support/hooks.rb:339 3.845
After features/support/hooks.rb:108 0.047