Project Number Date
test_Tails_ISO_stable 6167 24 Feb 2026, 22:41

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 7:49.199 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
19.392
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.015
Given I have started Tails from DVD without network and logged in 7.518
And I prepare Tails for memory erasure tests 0.429
When I start a process allocating 128 MiB of memory with a known pattern 2.252
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.022 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.211
Then I find very few patterns in the guest's memory after 5 seconds 6.957 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 1.190
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
20.132
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.006
Given I have started Tails from DVD without network and logged in 7.142
And I prepare Tails for memory erasure tests 0.340
And I find very few patterns in the guest's memory 2.199 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.068
Then patterns cover at least 99% of the test FS size in the guest's memory 1.974 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.942
Then I find very few patterns in the guest's memory after 3 seconds 5.464 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 0.882
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
36.018
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 7.057
And I prepare Tails for memory erasure tests 0.499
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.433
Then I find very few patterns in the guest's memory 2.080 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.432
Then patterns cover at least 75% of the test FS size in the guest's memory 2.472 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.197
Then I find very few patterns in the guest's memory after 3 seconds 5.262 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
# read cache
When I mount the USB drive again 0.242
And I read the content of the test FS 0.528
Then patterns cover at least 99% of the test FS size in the guest's memory 2.515 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.318
Then I find very few patterns in the guest's memory after 3 seconds 4.977 
Pattern coverage: 0.000% (0 MiB out of 1485 MiB reference memory)
After features/support/hooks.rb:331 0.830
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:7.241
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 7.652
And I prepare Tails for memory erasure tests 0.484
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.907
Then I find very few patterns in the guest's memory 2.302 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.897
Then patterns cover at least 99% of the test FS size in the guest's memory 2.348 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.616
Then I find very few patterns in the guest's memory after 3 seconds 4.647 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
# read cache
When I mount the USB drive again 4.269
And I read the content of the test FS 0.292
Then patterns cover at least 99% of the test FS size in the guest's memory 2.307 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.509
Then I find very few patterns in the guest's memory after 3 seconds 5.005 
Pattern coverage: 0.000% (0 MiB out of 1494 MiB reference memory)
After features/support/hooks.rb:331 1.135
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
45.210
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 6.929
And I prepare Tails for memory erasure tests 0.357
When I fill a 128 MiB file with a known pattern on the root filesystem 14.155
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.719
Then patterns cover at least 128 MiB in the guest's memory 1.506 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.536 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 3.425
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:41.204
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 4:8.733
And I prepare Tails for memory erasure tests 0.444
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.943
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.076 
Pattern coverage: 0.000% (0 MiB out of 1517 MiB reference memory)
After features/support/hooks.rb:331 3.608
After features/support/hooks.rb:100 0.012