Project Number Date
test_Tails_ISO_stable 6417 02 Jun 2026, 11:31

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 7:29.451 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
18.107
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.404
And I prepare Tails for memory erasure tests 0.338
When I start a process allocating 128 MiB of memory with a known pattern 2.279
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.123 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.180
Then I find very few patterns in the guest's memory after 5 seconds 6.780 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
After features/support/hooks.rb:335 0.654
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
17.030
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.399
And I prepare Tails for memory erasure tests 0.347
And I find very few patterns in the guest's memory 1.670 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.523
Then patterns cover at least 99% of the test FS size in the guest's memory 2.018 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.332
Then I find very few patterns in the guest's memory after 3 seconds 4.739 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
After features/support/hooks.rb:335 0.701
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
31.113
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.458
And I prepare Tails for memory erasure tests 0.337
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.010
Then I find very few patterns in the guest's memory 1.864 
Pattern coverage: 0.000% (0 MiB out of 1536 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 2.096 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.694
Then I find very few patterns in the guest's memory after 3 seconds 4.626 
Pattern coverage: 0.000% (0 MiB out of 1536 MiB reference memory)
# read cache
When I mount the USB drive again 0.143
And I read the content of the test FS 0.358
Then patterns cover at least 99% of the test FS size in the guest's memory 1.894 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.360
Then I find very few patterns in the guest's memory after 3 seconds 4.719 
Pattern coverage: 0.000% (0 MiB out of 1536 MiB reference memory)
After features/support/hooks.rb:335 0.597
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
56.125
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.528
And I prepare Tails for memory erasure tests 0.367
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.291
Then I find very few patterns in the guest's memory 1.603 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.372
Then patterns cover at least 99% of the test FS size in the guest's memory 1.733 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.517
Then I find very few patterns in the guest's memory after 3 seconds 4.560 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
# read cache
When I mount the USB drive again 4.067
And I read the content of the test FS 0.285
Then patterns cover at least 99% of the test FS size in the guest's memory 1.808 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.388
Then I find very few patterns in the guest's memory after 3 seconds 4.600 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
After features/support/hooks.rb:335 0.669
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
52.155
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.405
And I prepare Tails for memory erasure tests 0.346
When I fill a 128 MiB file with a known pattern on the root filesystem 21.258
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.100
Then patterns cover at least 128 MiB in the guest's memory 1.534 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.502 
Pattern coverage: 0.000% (0 MiB out of 1527 MiB reference memory)
After features/support/hooks.rb:335 3.402
After features/support/hooks.rb:104 0.000
Tags: @product @slow @not_release_blocker
4:34.919
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:55.024
And I prepare Tails for memory erasure tests 0.363
When I fill a 128 MiB file with a known pattern on the persistent filesystem 18.598
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.927 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
After features/support/hooks.rb:335 3.842
After features/support/hooks.rb:104 0.008