Project Number Date
test_Tails_ISO_devel 4505 21 Jul 2026, 19:49

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 8:25.111 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
19.098
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 6.736
And I prepare Tails for memory erasure tests 0.382
When I start a process allocating 128 MiB of memory with a known pattern 2.450
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.297 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.249
Then I find very few patterns in the guest's memory after 5 seconds 6.982 
Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)
After features/support/hooks.rb:339 0.750
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.689
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 6.805
And I prepare Tails for memory erasure tests 0.416
And I find very few patterns in the guest's memory 2.693 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.952
Then patterns cover at least 99% of the test FS size in the guest's memory 2.396 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.515
Then I find very few patterns in the guest's memory after 3 seconds 4.908 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:339 1.102
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
35.189
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 6.743
And I prepare Tails for memory erasure tests 0.533
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.034
Then I find very few patterns in the guest's memory 2.016 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.736
Then patterns cover at least 75% of the test FS size in the guest's memory 2.117 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.784
Then I find very few patterns in the guest's memory after 3 seconds 5.078 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 0.198
And I read the content of the test FS 0.423
Then patterns cover at least 99% of the test FS size in the guest's memory 2.883 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.478
Then I find very few patterns in the guest's memory after 3 seconds 5.159 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:339 1.097
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:7.099
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 6.920
And I prepare Tails for memory erasure tests 0.522
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.314
Then I find very few patterns in the guest's memory 1.832 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.269
Then patterns cover at least 99% of the test FS size in the guest's memory 2.038 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.599
Then I find very few patterns in the guest's memory after 3 seconds 5.859 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
# read cache
When I mount the USB drive again 5.703
And I read the content of the test FS 0.486
Then patterns cover at least 99% of the test FS size in the guest's memory 2.232 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.443
Then I find very few patterns in the guest's memory after 3 seconds 4.875 
Pattern coverage: 0.000% (0 MiB out of 1477 MiB reference memory)
After features/support/hooks.rb:339 0.808
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:2.298
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 6.902
And I prepare Tails for memory erasure tests 0.439
When I fill a 128 MiB file with a known pattern on the root filesystem 30.912
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.696
Then patterns cover at least 128 MiB in the guest's memory 1.825 
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 20.515 
Pattern coverage: 0.000% (0 MiB out of 1469 MiB reference memory)
After features/support/hooks.rb:339 3.849
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
5:1.736
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:13.696
And I prepare Tails for memory erasure tests 0.331
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.558
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 21.141 
Pattern coverage: 0.000% (0 MiB out of 1516 MiB reference memory)
After features/support/hooks.rb:339 3.762
After features/support/hooks.rb:108 0.013