Project Number Date
test_Tails_ISO_stable 6686 21 Sep 2026, 18:23

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 7:36.494 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
20.090
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.009
Given I have started Tails from DVD without network and logged in 6.200
And I prepare Tails for memory erasure tests 0.311
When I start a process allocating 128 MiB of memory with a known pattern 2.252
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.959 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.735
Then I find very few patterns in the guest's memory after 5 seconds 7.630 
Pattern coverage: 0.000% (0 MiB out of 1425 MiB reference memory)
After features/support/hooks.rb:339 0.659
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.585
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 6.399
And I prepare Tails for memory erasure tests 0.310
And I find very few patterns in the guest's memory 2.762 
Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.353
Then patterns cover at least 99% of the test FS size in the guest's memory 2.697 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.351
Then I find very few patterns in the guest's memory after 3 seconds 5.711 
Pattern coverage: 0.000% (0 MiB out of 1418 MiB reference memory)
After features/support/hooks.rb:339 0.573
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
36.927
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 6.313
And I prepare Tails for memory erasure tests 0.336
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.549
Then I find very few patterns in the guest's memory 2.800 
Pattern coverage: 0.000% (0 MiB out of 1421 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.692
Then patterns cover at least 75% of the test FS size in the guest's memory 3.062 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.671
Then I find very few patterns in the guest's memory after 3 seconds 5.823 
Pattern coverage: 0.000% (0 MiB out of 1421 MiB reference memory)
# read cache
When I mount the USB drive again 0.192
And I read the content of the test FS 0.534
Then patterns cover at least 99% of the test FS size in the guest's memory 2.799 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.404
Then I find very few patterns in the guest's memory after 3 seconds 5.747 
Pattern coverage: 0.000% (0 MiB out of 1421 MiB reference memory)
After features/support/hooks.rb:339 0.830
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:10.110
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 6.255
And I prepare Tails for memory erasure tests 0.334
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.205
Then I find very few patterns in the guest's memory 3.197 
Pattern coverage: 0.000% (0 MiB out of 1431 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.149
Then patterns cover at least 99% of the test FS size in the guest's memory 2.843 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.485
Then I find very few patterns in the guest's memory after 3 seconds 5.593 
Pattern coverage: 0.000% (0 MiB out of 1431 MiB reference memory)
# read cache
When I mount the USB drive again 3.374
And I read the content of the test FS 0.346
Then patterns cover at least 99% of the test FS size in the guest's memory 2.732 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 2.080
Then I find very few patterns in the guest's memory after 3 seconds 5.511 
Pattern coverage: 0.000% (0 MiB out of 1431 MiB reference memory)
After features/support/hooks.rb:339 0.657
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.963
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 6.300
And I prepare Tails for memory erasure tests 0.285
When I fill a 128 MiB file with a known pattern on the root filesystem 12.827
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.511
Then patterns cover at least 128 MiB in the guest's memory 2.187 
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 20.843 
Pattern coverage: 0.000% (0 MiB out of 1429 MiB reference memory)
After features/support/hooks.rb:339 3.594
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:25.817
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:53.707
And I prepare Tails for memory erasure tests 0.290
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.380
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.433 
Pattern coverage: 0.000% (0 MiB out of 1453 MiB reference memory)
After features/support/hooks.rb:339 3.397
After features/support/hooks.rb:108 0.009