Project Number Date
test_Tails_ISO_stable 6727 07 Oct 2026, 12:11

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 7:55.021 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
20.269
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 6.572
And I prepare Tails for memory erasure tests 0.300
When I start a process allocating 128 MiB of memory with a known pattern 2.223
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.050 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.253
Then I find very few patterns in the guest's memory after 5 seconds 7.868 
Pattern coverage: 0.000% (0 MiB out of 1399 MiB reference memory)
After features/support/hooks.rb:339 1.059
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
21.238
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 6.508
And I prepare Tails for memory erasure tests 0.317
And I find very few patterns in the guest's memory 2.887 
Pattern coverage: 0.000% (0 MiB out of 1397 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.565
Then patterns cover at least 99% of the test FS size in the guest's memory 3.185 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.544
Then I find very few patterns in the guest's memory after 3 seconds 6.229 
Pattern coverage: 0.000% (0 MiB out of 1397 MiB reference memory)
After features/support/hooks.rb:339 1.011
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
45.434
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 6.391
And I prepare Tails for memory erasure tests 0.383
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.705
Then I find very few patterns in the guest's memory 4.140 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.734
Then patterns cover at least 75% of the test FS size in the guest's memory 4.310 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.713
Then I find very few patterns in the guest's memory after 3 seconds 8.765 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
# read cache
When I mount the USB drive again 0.202
And I read the content of the test FS 0.662
Then patterns cover at least 99% of the test FS size in the guest's memory 4.061 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.513
Then I find very few patterns in the guest's memory after 3 seconds 6.849 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
After features/support/hooks.rb:339 0.962
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:3.443
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 6.408
And I prepare Tails for memory erasure tests 0.339
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.779
Then I find very few patterns in the guest's memory 3.224 
Pattern coverage: 0.000% (0 MiB out of 1399 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.387
Then patterns cover at least 99% of the test FS size in the guest's memory 3.257 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.625
Then I find very few patterns in the guest's memory after 3 seconds 5.735 
Pattern coverage: 0.000% (0 MiB out of 1399 MiB reference memory)
# read cache
When I mount the USB drive again 3.797
And I read the content of the test FS 0.376
Then patterns cover at least 99% of the test FS size in the guest's memory 2.620 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.438
Then I find very few patterns in the guest's memory after 3 seconds 5.453 
Pattern coverage: 0.000% (0 MiB out of 1399 MiB reference memory)
After features/support/hooks.rb:339 0.906
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
44.599
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.004
Given I have started Tails from DVD without network and logged in 6.589
And I prepare Tails for memory erasure tests 0.323
When I fill a 128 MiB file with a known pattern on the root filesystem 12.790
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.662
Then patterns cover at least 128 MiB in the guest's memory 2.275 
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 20.953 
Pattern coverage: 0.000% (0 MiB out of 1399 MiB reference memory)
After features/support/hooks.rb:339 3.489
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:40.035
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:9.107
And I prepare Tails for memory erasure tests 0.346
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.397
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.169 
Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)
After features/support/hooks.rb:339 3.679
After features/support/hooks.rb:108 0.009