Project Number Date
test_Tails_ISO_stable 6115 03 Feb 2026, 12:14

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 7:40.176 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
19.008
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 7.296
And I prepare Tails for memory erasure tests 0.471
When I start a process allocating 128 MiB of memory with a known pattern 2.228
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.942 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.268
Then I find very few patterns in the guest's memory after 5 seconds 6.800 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 1.425
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.139
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 6.874
And I prepare Tails for memory erasure tests 0.435
And I find very few patterns in the guest's memory 1.943 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.152
Then patterns cover at least 99% of the test FS size in the guest's memory 1.962 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.934
Then I find very few patterns in the guest's memory after 3 seconds 4.835 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 0.812
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
33.534
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.006
Given I have started Tails from DVD without network and logged in 6.794
And I prepare Tails for memory erasure tests 0.369
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.281
Then I find very few patterns in the guest's memory 1.850 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.266
Then patterns cover at least 75% of the test FS size in the guest's memory 1.978 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.415
Then I find very few patterns in the guest's memory after 3 seconds 4.854 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# read cache
When I mount the USB drive again 0.156
And I read the content of the test FS 0.479
Then patterns cover at least 99% of the test FS size in the guest's memory 1.948 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.467
Then I find very few patterns in the guest's memory after 3 seconds 4.672 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 0.933
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:10.530
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 6.790
And I prepare Tails for memory erasure tests 0.417
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.802
Then I find very few patterns in the guest's memory 1.577 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.154
Then patterns cover at least 99% of the test FS size in the guest's memory 1.790 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.621
Then I find very few patterns in the guest's memory after 3 seconds 4.773 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
# read cache
When I mount the USB drive again 13.205
And I read the content of the test FS 0.260
Then patterns cover at least 99% of the test FS size in the guest's memory 1.792 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.686
Then I find very few patterns in the guest's memory after 3 seconds 4.658 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 1.004
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
44.606
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 6.746
And I prepare Tails for memory erasure tests 0.408
When I fill a 128 MiB file with a known pattern on the root filesystem 13.531
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.884
Then patterns cover at least 128 MiB in the guest's memory 1.505 
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 20.524 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:331 3.490
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:33.357
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 4:1.733
And I prepare Tails for memory erasure tests 0.318
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.265
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.035 
Pattern coverage: 0.000% (0 MiB out of 1527 MiB reference memory)
After features/support/hooks.rb:331 3.414
After features/support/hooks.rb:100 0.032