Project Number Date
test_Tails_ISO_stable 6010 17 Dec 2025, 08:49

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 14:13.719 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
46.609
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 8.909
And I prepare Tails for memory erasure tests 0.440
When I start a process allocating 128 MiB of memory with a known pattern 2.401
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.413 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.205
Then I find very few patterns in the guest's memory after 5 seconds 19.239 
Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)
After features/support/hooks.rb:331 0.839
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:2.409
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 9.474
And I prepare Tails for memory erasure tests 0.468
And I find very few patterns in the guest's memory 14.956 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.520
Then patterns cover at least 99% of the test FS size in the guest's memory 15.571 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.443
Then I find very few patterns in the guest's memory after 3 seconds 18.975 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 1.120
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:57.361
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 9.684
And I prepare Tails for memory erasure tests 0.426
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.656
Then I find very few patterns in the guest's memory 14.899 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.550
Then patterns cover at least 75% of the test FS size in the guest's memory 16.164 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.082
Then I find very few patterns in the guest's memory after 3 seconds 17.538 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# read cache
When I mount the USB drive again 0.181
And I read the content of the test FS 0.830
Then patterns cover at least 99% of the test FS size in the guest's memory 20.793 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.482
Then I find very few patterns in the guest's memory after 3 seconds 26.070 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:331 1.350
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:19.830
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 8.378
And I prepare Tails for memory erasure tests 0.591
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 43.073
Then I find very few patterns in the guest's memory 16.994 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.928
Then patterns cover at least 99% of the test FS size in the guest's memory 15.331 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.791
Then I find very few patterns in the guest's memory after 3 seconds 15.920 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 5.235
And I read the content of the test FS 0.427
Then patterns cover at least 99% of the test FS size in the guest's memory 14.011 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.551
Then I find very few patterns in the guest's memory after 3 seconds 16.595 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:331 0.815
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
57.200
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 9.376
And I prepare Tails for memory erasure tests 0.525
When I fill a 128 MiB file with a known pattern on the root filesystem 10.254
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.942
Then patterns cover at least 128 MiB in the guest's memory 11.355 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 22.734 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:331 3.568
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:10.307
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 6:32.831
And I prepare Tails for memory erasure tests 0.383
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.795
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 28.286 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 3.581
After features/support/hooks.rb:100 0.018