Project Number Date
test_Tails_ISO_stable 6286 11 Apr 2026, 07:21

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 7:17.091 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
17.240
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 6.506
And I prepare Tails for memory erasure tests 0.351
When I start a process allocating 128 MiB of memory with a known pattern 1.175
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.174 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.223
Then I find very few patterns in the guest's memory after 5 seconds 6.809 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 1.013
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
17.214
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 6.419
And I prepare Tails for memory erasure tests 0.467
And I find very few patterns in the guest's memory 1.657 
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 1.583
Then patterns cover at least 99% of the test FS size in the guest's memory 1.896 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.400
Then I find very few patterns in the guest's memory after 3 seconds 4.789 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 1.316
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
31.889
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 6.509
And I prepare Tails for memory erasure tests 0.337
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.240
Then I find very few patterns in the guest's memory 1.948 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.272
Then patterns cover at least 75% of the test FS size in the guest's memory 2.108 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.708
Then I find very few patterns in the guest's memory after 3 seconds 4.645 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
# read cache
When I mount the USB drive again 0.156
And I read the content of the test FS 0.402
Then patterns cover at least 99% of the test FS size in the guest's memory 1.976 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.362
Then I find very few patterns in the guest's memory after 3 seconds 5.220 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 0.886
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.401
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 6.976
And I prepare Tails for memory erasure tests 0.411
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.756
Then I find very few patterns in the guest's memory 1.723 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.274
Then patterns cover at least 99% of the test FS size in the guest's memory 2.037 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.598
Then I find very few patterns in the guest's memory after 3 seconds 4.713 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
# read cache
When I mount the USB drive again 3.667
And I read the content of the test FS 0.309
Then patterns cover at least 99% of the test FS size in the guest's memory 1.808 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.498
Then I find very few patterns in the guest's memory after 3 seconds 4.627 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 0.956
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
43.991
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 7.125
And I prepare Tails for memory erasure tests 0.311
When I fill a 128 MiB file with a known pattern on the root filesystem 12.228
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.119
Then patterns cover at least 128 MiB in the guest's memory 1.689 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.511 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 3.623
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:30.355
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:59.051
And I prepare Tails for memory erasure tests 0.317
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.057
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.924 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 3.465
After features/support/hooks.rb:100 0.012