Project Number Date
test_Tails_ISO_stable 6322 22 Apr 2026, 11:45

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 7:48.073 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
19.617
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.724
And I prepare Tails for memory erasure tests 0.393
When I start a process allocating 128 MiB of memory with a known pattern 2.375
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.416 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.806
Then I find very few patterns in the guest's memory after 5 seconds 6.901 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 0.710
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
18.996
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 7.137
And I prepare Tails for memory erasure tests 0.537
And I find very few patterns in the guest's memory 2.154 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.658
Then patterns cover at least 99% of the test FS size in the guest's memory 2.144 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.337
Then I find very few patterns in the guest's memory after 3 seconds 5.026 
Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)
After features/support/hooks.rb:331 1.004
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
34.744
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 6.882
And I prepare Tails for memory erasure tests 0.501
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.620
Then I find very few patterns in the guest's memory 1.836 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.371
Then patterns cover at least 75% of the test FS size in the guest's memory 2.371 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 1.782
Then I find very few patterns in the guest's memory after 3 seconds 5.167 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
# read cache
When I mount the USB drive again 0.214
And I read the content of the test FS 0.617
Then patterns cover at least 99% of the test FS size in the guest's memory 2.167 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.452
Then I find very few patterns in the guest's memory after 3 seconds 4.758 
Pattern coverage: 0.000% (0 MiB out of 1497 MiB reference memory)
After features/support/hooks.rb:331 1.462
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:17.272
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 7.174
And I prepare Tails for memory erasure tests 0.548
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.875
Then I find very few patterns in the guest's memory 2.093 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.530
Then patterns cover at least 99% of the test FS size in the guest's memory 2.547 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.732
Then I find very few patterns in the guest's memory after 3 seconds 4.970 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
# read cache
When I mount the USB drive again 13.720
And I read the content of the test FS 0.317
Then patterns cover at least 99% of the test FS size in the guest's memory 2.199 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.559
Then I find very few patterns in the guest's memory after 3 seconds 5.003 
Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)
After features/support/hooks.rb:331 1.405
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
46.208
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 6.819
And I prepare Tails for memory erasure tests 0.521
When I fill a 128 MiB file with a known pattern on the root filesystem 14.104
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.175
Then patterns cover at least 128 MiB in the guest's memory 1.911 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.041
Then I find very few patterns in the guest's memory after 20 seconds 20.635 
Pattern coverage: 0.000% (0 MiB out of 1498 MiB reference memory)
After features/support/hooks.rb:331 4.089
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:31.232
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:58.387
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 11.410
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.049 
Pattern coverage: 0.000% (0 MiB out of 1528 MiB reference memory)
After features/support/hooks.rb:331 3.563
After features/support/hooks.rb:100 0.017