Project Number Date
test_Tails_ISO_stable 6156 19 Feb 2026, 12:02

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 7:37.627 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
18.801
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.009
Given I have started Tails from DVD without network and logged in 6.834
And I prepare Tails for memory erasure tests 0.379
When I start a process allocating 128 MiB of memory with a known pattern 2.220
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.968 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.285
Then I find very few patterns in the guest's memory after 5 seconds 7.113 
Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)
After features/support/hooks.rb:331 1.036
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.827
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 7.047
And I prepare Tails for memory erasure tests 0.571
And I find very few patterns in the guest's memory 1.814 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.276
Then patterns cover at least 99% of the test FS size in the guest's memory 2.068 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.899
Then I find very few patterns in the guest's memory after 3 seconds 5.148 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 1.100
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
35.511
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 6.910
And I prepare Tails for memory erasure tests 0.421
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.245
Then I find very few patterns in the guest's memory 2.201 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.968
Then patterns cover at least 75% of the test FS size in the guest's memory 2.470 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.224
Then I find very few patterns in the guest's memory after 3 seconds 4.942 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# read cache
When I mount the USB drive again 0.180
And I read the content of the test FS 0.385
Then patterns cover at least 99% of the test FS size in the guest's memory 1.945 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.719
Then I find very few patterns in the guest's memory after 3 seconds 4.894 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 0.868
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:5.240
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 7.140
And I prepare Tails for memory erasure tests 0.358
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.110
Then I find very few patterns in the guest's memory 1.823 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.670
Then patterns cover at least 99% of the test FS size in the guest's memory 1.874 
Pattern coverage: 106.115% (97 MiB out of 91 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 4.769 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
# read cache
When I mount the USB drive again 7.218
And I read the content of the test FS 0.298
Then patterns cover at least 99% of the test FS size in the guest's memory 1.855 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.474
Then I find very few patterns in the guest's memory after 3 seconds 4.893 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
After features/support/hooks.rb:331 1.199
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
45.010
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 6.754
And I prepare Tails for memory erasure tests 0.394
When I fill a 128 MiB file with a known pattern on the root filesystem 13.864
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.961
Then patterns cover at least 128 MiB in the guest's memory 1.543 
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 20.483 
Pattern coverage: 0.000% (0 MiB out of 1496 MiB reference memory)
After features/support/hooks.rb:331 3.553
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:33.235
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 4:0.782
And I prepare Tails for memory erasure tests 0.334
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.116
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.996 
Pattern coverage: 0.000% (0 MiB out of 1514 MiB reference memory)
After features/support/hooks.rb:331 3.667
After features/support/hooks.rb:100 0.010