Project Number Date
test_Tails_ISO_devel 4330 09 Apr 2026, 11:03

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 6:58.004 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
17.554
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 6.522
And I prepare Tails for memory erasure tests 0.365
When I start a process allocating 128 MiB of memory with a known pattern 1.228
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.067 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.582
Then I find very few patterns in the guest's memory after 5 seconds 6.787 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
After features/support/hooks.rb:331 0.698
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.308
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 6.513
And I prepare Tails for memory erasure tests 0.334
And I find very few patterns in the guest's memory 1.808 
Pattern coverage: 0.000% (0 MiB out of 1519 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.472
Then patterns cover at least 99% of the test FS size in the guest's memory 2.065 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.346
Then I find very few patterns in the guest's memory after 3 seconds 4.767 
Pattern coverage: 0.000% (0 MiB out of 1519 MiB reference memory)
After features/support/hooks.rb:331 0.955
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.529
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 6.543
And I prepare Tails for memory erasure tests 0.387
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.200
Then I find very few patterns in the guest's memory 2.011 
Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.194
Then patterns cover at least 75% of the test FS size in the guest's memory 2.004 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.802
Then I find very few patterns in the guest's memory after 3 seconds 4.700 
Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)
# read cache
When I mount the USB drive again 0.165
And I read the content of the test FS 0.425
Then patterns cover at least 99% of the test FS size in the guest's memory 1.938 
Pattern coverage: 100.000% (127 MiB out of 127 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 4.765 
Pattern coverage: 0.000% (0 MiB out of 1520 MiB reference memory)
After features/support/hooks.rb:331 0.708
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.479
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 6.548
And I prepare Tails for memory erasure tests 0.384
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.456
Then I find very few patterns in the guest's memory 1.811 
Pattern coverage: 0.000% (0 MiB out of 1527 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.031
Then patterns cover at least 99% of the test FS size in the guest's memory 1.918 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.506
Then I find very few patterns in the guest's memory after 3 seconds 4.759 
Pattern coverage: 0.000% (0 MiB out of 1527 MiB reference memory)
# read cache
When I mount the USB drive again 3.980
And I read the content of the test FS 0.320
Then patterns cover at least 99% of the test FS size in the guest's memory 1.730 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.428
Then I find very few patterns in the guest's memory after 3 seconds 4.601 
Pattern coverage: 0.000% (0 MiB out of 1527 MiB reference memory)
After features/support/hooks.rb:331 0.823
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
42.986
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 6.567
And I prepare Tails for memory erasure tests 0.344
When I fill a 128 MiB file with a known pattern on the root filesystem 12.164
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.800
Then patterns cover at least 128 MiB in the guest's memory 1.584 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 20.513 
Pattern coverage: 0.000% (0 MiB out of 1515 MiB reference memory)
After features/support/hooks.rb:331 3.612
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:12.146
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 3:40.683
And I prepare Tails for memory erasure tests 0.412
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.148
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.898 
Pattern coverage: 0.000% (0 MiB out of 1489 MiB reference memory)
After features/support/hooks.rb:331 3.658
After features/support/hooks.rb:100 0.010