Project Number Date
test_Tails_ISO_stable 6750 16 Oct 2026, 11:26

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 7:14.757 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
19.077
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.058
And I prepare Tails for memory erasure tests 0.298
When I start a process allocating 128 MiB of memory with a known pattern 2.192
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.846 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.179
Then I find very few patterns in the guest's memory after 5 seconds 7.502 
Pattern coverage: 0.000% (0 MiB out of 1405 MiB reference memory)
After features/support/hooks.rb:339 0.641
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
19.837
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.132
And I prepare Tails for memory erasure tests 0.278
And I find very few patterns in the guest's memory 2.934 
Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.576
Then patterns cover at least 99% of the test FS size in the guest's memory 2.872 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.453
Then I find very few patterns in the guest's memory after 3 seconds 5.589 
Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)
After features/support/hooks.rb:339 0.873
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
45.238
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.053
And I prepare Tails for memory erasure tests 0.283
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.398
Then I find very few patterns in the guest's memory 3.226 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.783
Then patterns cover at least 75% of the test FS size in the guest's memory 5.070 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.710
Then I find very few patterns in the guest's memory after 3 seconds 7.259 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
# read cache
When I mount the USB drive again 0.152
And I read the content of the test FS 0.607
Then patterns cover at least 99% of the test FS size in the guest's memory 5.382 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.471
Then I find very few patterns in the guest's memory after 3 seconds 7.836 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
After features/support/hooks.rb:339 1.028
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:3.861
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.124
And I prepare Tails for memory erasure tests 0.316
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.323
Then I find very few patterns in the guest's memory 2.832 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.193
Then patterns cover at least 99% of the test FS size in the guest's memory 2.785 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.544
Then I find very few patterns in the guest's memory after 3 seconds 5.510 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
# read cache
When I mount the USB drive again 3.873
And I read the content of the test FS 0.320
Then patterns cover at least 99% of the test FS size in the guest's memory 2.740 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.407
Then I find very few patterns in the guest's memory after 3 seconds 5.890 
Pattern coverage: 0.000% (0 MiB out of 1406 MiB reference memory)
After features/support/hooks.rb:339 0.920
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
43.511
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.251
And I prepare Tails for memory erasure tests 0.313
When I fill a 128 MiB file with a known pattern on the root filesystem 12.542
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.340
Then patterns cover at least 128 MiB in the guest's memory 2.313 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 20.735 
Pattern coverage: 0.000% (0 MiB out of 1408 MiB reference memory)
After features/support/hooks.rb:339 3.487
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:3.231
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:32.711
And I prepare Tails for memory erasure tests 0.259
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.098
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.157 
Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)
After features/support/hooks.rb:339 3.453
After features/support/hooks.rb:108 0.009