Project Number Date
test_Tails_ISO_stable 6309 20 Apr 2026, 11:25

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 7:8.875 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
17.094
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 6.718
And I prepare Tails for memory erasure tests 0.478
When I start a process allocating 128 MiB of memory with a known pattern 1.133
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.821 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.168
Then I find very few patterns in the guest's memory after 5 seconds 6.773 
Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)
After features/support/hooks.rb:331 0.658
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
16.939
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 6.566
And I prepare Tails for memory erasure tests 0.425
And I find very few patterns in the guest's memory 1.694 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.376
Then patterns cover at least 99% of the test FS size in the guest's memory 1.847 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 0.319
Then I find very few patterns in the guest's memory after 3 seconds 4.708 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:331 0.783
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
32.244
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 6.670
And I prepare Tails for memory erasure tests 0.512
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.333
Then I find very few patterns in the guest's memory 1.958 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 2.080
Then patterns cover at least 75% of the test FS size in the guest's memory 2.132 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.727
Then I find very few patterns in the guest's memory after 3 seconds 4.973 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
# read cache
When I mount the USB drive again 0.159
And I read the content of the test FS 0.472
Then patterns cover at least 99% of the test FS size in the guest's memory 2.070 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.396
Then I find very few patterns in the guest's memory after 3 seconds 4.757 
Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)
After features/support/hooks.rb:331 0.955
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
56.201
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 6.482
And I prepare Tails for memory erasure tests 0.409
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.507
Then I find very few patterns in the guest's memory 1.598 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.124
Then patterns cover at least 99% of the test FS size in the guest's memory 1.747 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.449
Then I find very few patterns in the guest's memory after 3 seconds 4.580 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
# read cache
When I mount the USB drive again 4.187
And I read the content of the test FS 0.262
Then patterns cover at least 99% of the test FS size in the guest's memory 1.931 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.335
Then I find very few patterns in the guest's memory after 3 seconds 4.585 
Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)
After features/support/hooks.rb:331 1.009
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
42.596
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 6.472
And I prepare Tails for memory erasure tests 0.445
When I fill a 128 MiB file with a known pattern on the root filesystem 12.150
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.590
Then patterns cover at least 128 MiB in the guest's memory 1.438 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.491 
Pattern coverage: 0.000% (0 MiB out of 1472 MiB reference memory)
After features/support/hooks.rb:331 3.689
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:23.798
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 3:52.746
And I prepare Tails for memory erasure tests 0.277
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.900
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.866 
Pattern coverage: 0.000% (0 MiB out of 1525 MiB reference memory)
After features/support/hooks.rb:331 3.500
After features/support/hooks.rb:100 0.010