Project Number Date
test_Tails_ISO_stable 6496 11 Jul 2026, 11:34

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 7:41.494 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
17.207
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 6.681
And I prepare Tails for memory erasure tests 0.350
When I start a process allocating 128 MiB of memory with a known pattern 1.206
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.995 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.183
Then I find very few patterns in the guest's memory after 5 seconds 6.788 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:339 1.035
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
17.257
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 6.658
And I prepare Tails for memory erasure tests 0.341
And I find very few patterns in the guest's memory 1.783 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.377
Then patterns cover at least 99% of the test FS size in the guest's memory 2.015 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.299
Then I find very few patterns in the guest's memory after 3 seconds 4.781 
Pattern coverage: 0.000% (0 MiB out of 1475 MiB reference memory)
After features/support/hooks.rb:339 1.026
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
31.599
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.585
And I prepare Tails for memory erasure tests 0.318
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.264
Then I find very few patterns in the guest's memory 1.756 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.347
Then patterns cover at least 75% of the test FS size in the guest's memory 1.999 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.672
Then I find very few patterns in the guest's memory after 3 seconds 4.921 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
# read cache
When I mount the USB drive again 0.149
And I read the content of the test FS 0.387
Then patterns cover at least 99% of the test FS size in the guest's memory 2.036 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.391
Then I find very few patterns in the guest's memory after 3 seconds 4.769 
Pattern coverage: 0.000% (0 MiB out of 1473 MiB reference memory)
After features/support/hooks.rb:339 0.778
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
54.108
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 6.485
And I prepare Tails for memory erasure tests 0.315
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 26.829
Then I find very few patterns in the guest's memory 1.750 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.096
Then patterns cover at least 99% of the test FS size in the guest's memory 1.862 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.504
Then I find very few patterns in the guest's memory after 3 seconds 4.681 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
# read cache
When I mount the USB drive again 3.456
And I read the content of the test FS 0.338
Then patterns cover at least 99% of the test FS size in the guest's memory 1.711 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.384
Then I find very few patterns in the guest's memory after 3 seconds 4.690 
Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)
After features/support/hooks.rb:339 0.689
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
1:3.164
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 6.509
And I prepare Tails for memory erasure tests 0.331
When I fill a 128 MiB file with a known pattern on the root filesystem 32.374
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.934
Then patterns cover at least 128 MiB in the guest's memory 1.464 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.543 
Pattern coverage: 0.000% (0 MiB out of 1481 MiB reference memory)
After features/support/hooks.rb:339 3.411
After features/support/hooks.rb:108 0.000
Tags: @product @slow @not_release_blocker
4:38.156
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:50.196
And I prepare Tails for memory erasure tests 0.321
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.568
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.065 
Pattern coverage: 0.000% (0 MiB out of 1503 MiB reference memory)
After features/support/hooks.rb:339 3.550
After features/support/hooks.rb:108 0.010