Project Number Date
test_Tails_ISO_stable 6113 02 Feb 2026, 12:46

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 12:47.351 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
46.030
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.063
And I prepare Tails for memory erasure tests 0.420
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 15.574 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.228
Then I find very few patterns in the guest's memory after 5 seconds 19.515 
Pattern coverage: 0.000% (0 MiB out of 1487 MiB reference memory)
After features/support/hooks.rb:331 0.794
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:12.566
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.177
And I prepare Tails for memory erasure tests 0.419
And I find very few patterns in the guest's memory 20.995 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.868
Then patterns cover at least 99% of the test FS size in the guest's memory 21.247 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.308
Then I find very few patterns in the guest's memory after 3 seconds 17.548 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 0.788
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:49.920
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.030
And I prepare Tails for memory erasure tests 0.445
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.457
Then I find very few patterns in the guest's memory 14.676 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.433
Then patterns cover at least 75% of the test FS size in the guest's memory 16.316 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.540
Then I find very few patterns in the guest's memory after 3 seconds 25.052 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
# read cache
When I mount the USB drive again 0.202
And I read the content of the test FS 0.615
Then patterns cover at least 99% of the test FS size in the guest's memory 15.212 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.469
Then I find very few patterns in the guest's memory after 3 seconds 17.466 
Pattern coverage: 0.000% (0 MiB out of 1483 MiB reference memory)
After features/support/hooks.rb:331 1.251
After features/support/hooks.rb:100 0.005
Tags: @product @slow @not_release_blocker
2:2.065
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.139
And I prepare Tails for memory erasure tests 0.374
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.879
Then I find very few patterns in the guest's memory 13.109 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.722
Then patterns cover at least 99% of the test FS size in the guest's memory 13.280 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.573
Then I find very few patterns in the guest's memory after 3 seconds 15.947 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
# read cache
When I mount the USB drive again 5.281
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 13.319 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.491
Then I find very few patterns in the guest's memory after 3 seconds 15.529 
Pattern coverage: 0.000% (0 MiB out of 1505 MiB reference memory)
After features/support/hooks.rb:331 0.894
After features/support/hooks.rb:100 0.003
Tags: @product @slow @not_release_blocker
55.693
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.004
Given I have started Tails from DVD without network and logged in 8.004
And I prepare Tails for memory erasure tests 0.373
When I fill a 128 MiB file with a known pattern on the root filesystem 11.914
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.362
Then patterns cover at least 128 MiB in the guest's memory 10.186 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 22.839 
Pattern coverage: 0.000% (0 MiB out of 1500 MiB reference memory)
After features/support/hooks.rb:331 3.488
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:1.074
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 5:27.961
And I prepare Tails for memory erasure tests 0.355
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.162
When I trigger shutdown 0.020
Then I find very few patterns in the guest's memory after 20 seconds 23.574 
Pattern coverage: 0.000% (0 MiB out of 1537 MiB reference memory)
After features/support/hooks.rb:331 3.925
After features/support/hooks.rb:100 0.015