Project Number Date
test_Tails_ISO_devel 4236 17 Feb 2026, 14:24

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 13:23.710 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
53.168
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 8.194
And I prepare Tails for memory erasure tests 0.358
When I start a process allocating 128 MiB of memory with a known pattern 1.179
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 16.661 
Pattern coverage: 100.394% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.162
Then I find very few patterns in the guest's memory after 5 seconds 26.611 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:331 0.697
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:6.559
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 9.373
And I prepare Tails for memory erasure tests 0.517
And I find very few patterns in the guest's memory 17.000 
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 0.732
Then patterns cover at least 99% of the test FS size in the guest's memory 18.795 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.081
Then I find very few patterns in the guest's memory after 3 seconds 20.060 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:331 0.791
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:45.532
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 7.809
And I prepare Tails for memory erasure tests 0.382
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.476
Then I find very few patterns in the guest's memory 14.459 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.191
Then patterns cover at least 75% of the test FS size in the guest's memory 17.647 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.249
Then I find very few patterns in the guest's memory after 3 seconds 18.623 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 0.165
And I read the content of the test FS 0.491
Then patterns cover at least 99% of the test FS size in the guest's memory 18.208 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.231
Then I find very few patterns in the guest's memory after 3 seconds 19.595 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:331 0.909
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
2:7.882
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 12.710
And I prepare Tails for memory erasure tests 0.757
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.391
Then I find very few patterns in the guest's memory 15.844 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.361
Then patterns cover at least 99% of the test FS size in the guest's memory 16.609 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.484
Then I find very few patterns in the guest's memory after 3 seconds 18.166 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
# read cache
When I mount the USB drive again 2.387
And I read the content of the test FS 0.493
Then patterns cover at least 99% of the test FS size in the guest's memory 14.765 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.342
Then I find very few patterns in the guest's memory after 3 seconds 15.568 
Pattern coverage: 0.000% (0 MiB out of 1479 MiB reference memory)
After features/support/hooks.rb:331 1.484
After features/support/hooks.rb:100 0.014
Tags: @product @slow @not_release_blocker
54.095
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.104
Given I have started Tails from DVD without network and logged in 9.010
And I prepare Tails for memory erasure tests 0.414
When I fill a 128 MiB file with a known pattern on the root filesystem 9.300
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 0.510
Then patterns cover at least 128 MiB in the guest's memory 11.505 
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 23.342 
Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)
After features/support/hooks.rb:331 3.747
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
6:36.471
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 6:4.024
And I prepare Tails for memory erasure tests 0.503
When I fill a 128 MiB file with a known pattern on the persistent filesystem 8.820
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 23.111 
Pattern coverage: 0.000% (0 MiB out of 1547 MiB reference memory)
After features/support/hooks.rb:331 3.846
After features/support/hooks.rb:100 0.016