Project Number Date
test_Tails_ISO_devel 4310 01 Apr 2026, 12:53

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 7:41.613 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
18.024
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 6.999
And I prepare Tails for memory erasure tests 0.405
When I start a process allocating 128 MiB of memory with a known pattern 1.234
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.249 
Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)
When I kill the allocating process 0.335
Then I find very few patterns in the guest's memory after 5 seconds 6.800 
Pattern coverage: 0.000% (0 MiB out of 1534 MiB reference memory)
After features/support/hooks.rb:331 0.823
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
19.810
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 6.901
And I prepare Tails for memory erasure tests 0.538
And I find very few patterns in the guest's memory 1.964 
Pattern coverage: 0.000% (0 MiB out of 1535 MiB reference memory)
When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.924
Then patterns cover at least 99% of the test FS size in the guest's memory 2.267 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I umount "/mnt" 1.445
Then I find very few patterns in the guest's memory after 3 seconds 4.769 
Pattern coverage: 0.000% (0 MiB out of 1535 MiB reference memory)
After features/support/hooks.rb:331 1.184
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
36.563
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 6.645
And I prepare Tails for memory erasure tests 0.470
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.836
Then I find very few patterns in the guest's memory 2.244 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 3.614
Then patterns cover at least 75% of the test FS size in the guest's memory 2.064 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.983
Then I find very few patterns in the guest's memory after 3 seconds 5.283 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
# read cache
When I mount the USB drive again 0.239
And I read the content of the test FS 0.513
Then patterns cover at least 99% of the test FS size in the guest's memory 2.332 
Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)
When I umount the USB drive 0.493
Then I find very few patterns in the guest's memory after 3 seconds 4.842 
Pattern coverage: 0.000% (0 MiB out of 1532 MiB reference memory)
After features/support/hooks.rb:331 0.799
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
1:5.677
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 6.825
And I prepare Tails for memory erasure tests 0.515
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.807
Then I find very few patterns in the guest's memory 1.748 
Pattern coverage: 0.000% (0 MiB out of 1533 MiB reference memory)
# write cache
When I fill the USB drive with a known pattern 1.681
Then patterns cover at least 99% of the test FS size in the guest's memory 2.104 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.626
Then I find very few patterns in the guest's memory after 3 seconds 5.265 
Pattern coverage: 0.000% (0 MiB out of 1533 MiB reference memory)
# read cache
When I mount the USB drive again 6.455
And I read the content of the test FS 0.491
Then patterns cover at least 99% of the test FS size in the guest's memory 1.883 
Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)
When I umount the USB drive 0.487
Then I find very few patterns in the guest's memory after 3 seconds 4.784 
Pattern coverage: 0.000% (0 MiB out of 1533 MiB reference memory)
After features/support/hooks.rb:331 0.949
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
45.791
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 7.050
And I prepare Tails for memory erasure tests 0.587
When I fill a 128 MiB file with a known pattern on the root filesystem 13.497
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.465
Then patterns cover at least 128 MiB in the guest's memory 1.611 
Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)
When I trigger shutdown 0.023
Then I find very few patterns in the guest's memory after 20 seconds 20.555 
Pattern coverage: 0.000% (0 MiB out of 1536 MiB reference memory)
After features/support/hooks.rb:331 3.795
After features/support/hooks.rb:100 0.000
Tags: @product @slow @not_release_blocker
4:35.745
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 4:2.876
And I prepare Tails for memory erasure tests 0.318
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.445
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 21.098 
Pattern coverage: 0.000% (0 MiB out of 1510 MiB reference memory)
After features/support/hooks.rb:331 3.609
After features/support/hooks.rb:100 0.019