Project Number Date
test_Tails_ISO_devel 4452 16 Jun 2026, 17:49

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 7:38.004 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
17.885
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.016
Given I have started Tails from DVD without network and logged in 7.235
And I prepare Tails for memory erasure tests 0.412
When I start a process allocating 128 MiB of memory with a known pattern 1.162
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.014 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.159
Then I find very few patterns in the guest's memory after 5 seconds 6.900 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
After features/support/hooks.rb:339 0.911
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.667
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.016
Given I have started Tails from DVD without network and logged in 6.992
And I prepare Tails for memory erasure tests 0.324
And I find very few patterns in the guest's memory 1.798 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.488
Then patterns cover at least 99% of the test FS size in the guest's memory 1.912 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.313
Then I find very few patterns in the guest's memory after 3 seconds 4.837 
Pattern coverage: 0.000% (0 MiB out of 1501 MiB reference memory)
After features/support/hooks.rb:339 0.650
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
32.757
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.016
Given I have started Tails from DVD without network and logged in 7.153
And I prepare Tails for memory erasure tests 0.367
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.531
Then I find very few patterns in the guest's memory 1.765 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.538
Then patterns cover at least 75% of the test FS size in the guest's memory 2.043 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.751
Then I find very few patterns in the guest's memory after 3 seconds 4.877 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
# read cache
When I mount the USB drive again 0.133
And I read the content of the test FS 0.408
Then patterns cover at least 99% of the test FS size in the guest's memory 1.906 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.359
Then I find very few patterns in the guest's memory after 3 seconds 4.920 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:339 1.085
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
56.912
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.022
Given I have started Tails from DVD without network and logged in 6.851
And I prepare Tails for memory erasure tests 0.390
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.363
Then I find very few patterns in the guest's memory 1.566 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.282
Then patterns cover at least 99% of the test FS size in the guest's memory 1.783 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.532
Then I find very few patterns in the guest's memory after 3 seconds 4.642 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
# read cache
When I mount the USB drive again 4.275
And I read the content of the test FS 0.297
Then patterns cover at least 99% of the test FS size in the guest's memory 1.736 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.470
Then I find very few patterns in the guest's memory after 3 seconds 4.720 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:339 0.837
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
53.466
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.018
Given I have started Tails from DVD without network and logged in 6.925
And I prepare Tails for memory erasure tests 0.339
When I fill a 128 MiB file with a known pattern on the root filesystem 21.979
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.920
Then patterns cover at least 128 MiB in the guest's memory 1.716 
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 20.578 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:339 3.592
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:39.315
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.058
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:2.022
And I prepare Tails for memory erasure tests 0.309
When I fill a 128 MiB file with a known pattern on the persistent filesystem 15.890
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.087 
Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)
After features/support/hooks.rb:339 3.512
After features/support/hooks.rb:108 0.045