Project Number Date
test_Tails_ISO_stable 6175 26 Feb 2026, 17:09

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 13:22.083 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
46.236
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 8.279
And I prepare Tails for memory erasure tests 0.461
When I start a process allocating 128 MiB of memory with a known pattern 2.269
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.531 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.195
Then I find very few patterns in the guest's memory after 5 seconds 19.499 
Pattern coverage: 0.000% (0 MiB out of 1495 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
1:0.886
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 8.177
And I prepare Tails for memory erasure tests 0.437
And I find very few patterns in the guest's memory 15.473 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.902
Then patterns cover at least 99% of the test FS size in the guest's memory 15.168 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.312
Then I find very few patterns in the guest's memory after 3 seconds 17.415 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 1.161
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:44.050
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 8.178
And I prepare Tails for memory erasure tests 0.545
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.516
Then I find very few patterns in the guest's memory 15.056 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.771
Then patterns cover at least 75% of the test FS size in the guest's memory 15.838 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.594
Then I find very few patterns in the guest's memory after 3 seconds 16.153 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# read cache
When I mount the USB drive again 0.216
And I read the content of the test FS 1.047
Then patterns cover at least 99% of the test FS size in the guest's memory 18.039 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.407
Then I find very few patterns in the guest's memory after 3 seconds 16.685 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 1.009
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:0.797
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 8.292
And I prepare Tails for memory erasure tests 0.497
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.196
Then I find very few patterns in the guest's memory 13.080 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.825
Then patterns cover at least 99% of the test FS size in the guest's memory 13.476 
Pattern coverage: 106.115% (97 MiB out of 91 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 16.186 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
# read cache
When I mount the USB drive again 4.637
And I read the content of the test FS 0.512
Then patterns cover at least 99% of the test FS size in the guest's memory 12.979 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.548
Then I find very few patterns in the guest's memory after 3 seconds 16.762 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 0.781
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:2.049
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 8.399
And I prepare Tails for memory erasure tests 0.480
When I fill a 128 MiB file with a known pattern on the root filesystem 11.993
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.988
Then patterns cover at least 128 MiB in the guest's memory 11.596 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 27.579 
Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)
After features/support/hooks.rb:331 4.238
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:48.063
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 6:14.920
And I prepare Tails for memory erasure tests 0.343
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.301
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 23.485 
Pattern coverage: 0.000% (0 MiB out of 1518 MiB reference memory)
After features/support/hooks.rb:331 3.520
After features/support/hooks.rb:100 0.014