Project Number Date
test_Tails_ISO_stable 5962 20 Nov 2025, 16:31

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 16:12.664 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
47.402
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.010
Given I have started Tails from DVD without network and logged in 9.239
And I prepare Tails for memory erasure tests 0.409
When I start a process allocating 128 MiB of memory with a known pattern 2.311
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 15.376 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.964
Then I find very few patterns in the guest's memory after 5 seconds 19.101 
Pattern coverage: 0.000% (0 MiB out of 1502 MiB reference memory)
After features/support/hooks.rb:331 1.028
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:3.406
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 9.047
And I prepare Tails for memory erasure tests 0.584
And I find very few patterns in the guest's memory 15.092 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.686
Then patterns cover at least 99% of the test FS size in the guest's memory 16.182 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.486
Then I find very few patterns in the guest's memory after 3 seconds 20.326 
Pattern coverage: 0.000% (0 MiB out of 1513 MiB reference memory)
After features/support/hooks.rb:331 1.239
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
3:26.490
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 10.040
And I prepare Tails for memory erasure tests 0.594
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.889
Then I find very few patterns in the guest's memory 39.874 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.550
Then patterns cover at least 75% of the test FS size in the guest's memory 35.545 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.925
Then I find very few patterns in the guest's memory after 3 seconds 36.294 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
# read cache
When I mount the USB drive again 0.229
And I read the content of the test FS 0.621
Then patterns cover at least 99% of the test FS size in the guest's memory 35.816 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.507
Then I find very few patterns in the guest's memory after 3 seconds 36.599 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
After features/support/hooks.rb:331 0.936
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:17.778
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 8.693
And I prepare Tails for memory erasure tests 0.461
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.724
Then I find very few patterns in the guest's memory 24.184 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.895
Then patterns cover at least 99% of the test FS size in the guest's memory 14.232 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.787
Then I find very few patterns in the guest's memory after 3 seconds 15.491 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
# read cache
When I mount the USB drive again 4.767
And I read the content of the test FS 0.500
Then patterns cover at least 99% of the test FS size in the guest's memory 14.103 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.567
Then I find very few patterns in the guest's memory after 3 seconds 17.368 
Pattern coverage: 0.000% (0 MiB out of 1508 MiB reference memory)
After features/support/hooks.rb:331 1.053
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
59.323
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 8.891
And I prepare Tails for memory erasure tests 0.406
When I fill a 128 MiB file with a known pattern on the root filesystem 11.347
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 3.056
Then patterns cover at least 128 MiB in the guest's memory 10.795 
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 24.815 
Pattern coverage: 0.000% (0 MiB out of 1506 MiB reference memory)
After features/support/hooks.rb:331 4.155
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
7:38.263
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 7:1.128
And I prepare Tails for memory erasure tests 0.380
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.003
When I trigger shutdown 0.020
Then I find very few patterns in the guest's memory after 20 seconds 27.731 
Pattern coverage: 0.000% (0 MiB out of 1558 MiB reference memory)
After features/support/hooks.rb:331 3.677
After features/support/hooks.rb:100 0.018