Project Number Date
test_Tails_ISO_stable 6177 27 Feb 2026, 11:57

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 12:49.913 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
54.297
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 8.276
And I prepare Tails for memory erasure tests 0.361
When I start a process allocating 128 MiB of memory with a known pattern 2.250
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.532 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.218
Then I find very few patterns in the guest's memory after 5 seconds 27.659 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
After features/support/hooks.rb:331 1.221
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:0.972
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 8.364
And I prepare Tails for memory erasure tests 0.383
And I find very few patterns in the guest's memory 15.406 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.751
Then patterns cover at least 99% of the test FS size in the guest's memory 15.404 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.152
Then I find very few patterns in the guest's memory after 3 seconds 17.508 
Pattern coverage: 0.000% (0 MiB out of 1507 MiB reference memory)
After features/support/hooks.rb:331 1.047
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:47.283
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 8.266
And I prepare Tails for memory erasure tests 0.375
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.763
Then I find very few patterns in the guest's memory 21.239 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.491
Then patterns cover at least 75% of the test FS size in the guest's memory 16.468 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.428
Then I find very few patterns in the guest's memory after 3 seconds 16.956 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
# read cache
When I mount the USB drive again 0.375
And I read the content of the test FS 0.669
Then patterns cover at least 99% of the test FS size in the guest's memory 14.349 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.309
Then I find very few patterns in the guest's memory after 3 seconds 16.590 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
After features/support/hooks.rb:331 0.729
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:3.386
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 8.385
And I prepare Tails for memory erasure tests 0.396
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.512
Then I find very few patterns in the guest's memory 13.232 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.801
Then patterns cover at least 99% of the test FS size in the guest's memory 15.089 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.815
Then I find very few patterns in the guest's memory after 3 seconds 17.162 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
# read cache
When I mount the USB drive again 4.691
And I read the content of the test FS 0.440
Then patterns cover at least 99% of the test FS size in the guest's memory 13.659 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.499
Then I find very few patterns in the guest's memory after 3 seconds 15.701 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
After features/support/hooks.rb:331 1.075
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.817
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 8.703
And I prepare Tails for memory erasure tests 0.405
When I fill a 128 MiB file with a known pattern on the root filesystem 12.272
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.608
Then patterns cover at least 128 MiB in the guest's memory 10.018 
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 22.798 
Pattern coverage: 0.000% (0 MiB out of 1504 MiB reference memory)
After features/support/hooks.rb:331 3.975
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:7.155
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:33.643
And I prepare Tails for memory erasure tests 0.347
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.399
When I trigger shutdown 0.024
Then I find very few patterns in the guest's memory after 20 seconds 23.741 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
After features/support/hooks.rb:331 3.836
After features/support/hooks.rb:100 0.014