Project Number Date
test_Tails_ISO_devel 4385 08 May 2026, 20:09

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 7:17.462 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
16.798
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.458
And I prepare Tails for memory erasure tests 0.352
When I start a process allocating 128 MiB of memory with a known pattern 1.219
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.913 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.184
Then I find very few patterns in the guest's memory after 5 seconds 6.669 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 0.934
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
16.776
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.408
And I prepare Tails for memory erasure tests 0.367
And I find very few patterns in the guest's memory 1.690 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.478
Then patterns cover at least 99% of the test FS size in the guest's memory 1.910 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.297
Then I find very few patterns in the guest's memory after 3 seconds 4.623 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.968
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.015
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.340
And I prepare Tails for memory erasure tests 0.317
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.325
Then I find very few patterns in the guest's memory 1.721 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.394
Then patterns cover at least 75% of the test FS size in the guest's memory 2.045 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.632
Then I find very few patterns in the guest's memory after 3 seconds 4.723 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
# read cache
When I mount the USB drive again 0.131
And I read the content of the test FS 0.415
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 0.327
Then I find very few patterns in the guest's memory after 3 seconds 4.733 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
After features/support/hooks.rb:331 0.768
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
59.637
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.558
And I prepare Tails for memory erasure tests 0.364
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.776
Then I find very few patterns in the guest's memory 1.751 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.371
Then patterns cover at least 99% of the test FS size in the guest's memory 1.812 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.497
Then I find very few patterns in the guest's memory after 3 seconds 4.640 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 3.698
And I read the content of the test FS 0.290
Then patterns cover at least 99% of the test FS size in the guest's memory 1.785 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.425
Then I find very few patterns in the guest's memory after 3 seconds 4.664 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.694
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
55.542
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.515
And I prepare Tails for memory erasure tests 0.296
When I fill a 128 MiB file with a known pattern on the root filesystem 24.522
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.154
Then patterns cover at least 128 MiB in the guest's memory 1.461 
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 20.586 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 3.500
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:17.692
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:38.037
And I prepare Tails for memory erasure tests 0.278
When I fill a 128 MiB file with a known pattern on the persistent filesystem 18.436
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.933 
Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)
After features/support/hooks.rb:331 3.548
After features/support/hooks.rb:100 0.008