Project Number Date
test_Tails_ISO_20898-tinyrpc-drop 5 16 Apr 2025, 21:56

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 10:52.680 Passed
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.
22.671
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 7.879
And I prepare Tails for memory erasure tests 0.389
When I start a process allocating 128 MiB of memory with a known pattern 1.281
Then patterns cover at least 128 MiB in the guest's memory 3.615

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I kill the allocating process 0.708
Then I find very few patterns in the guest's memory after 5 seconds 8.798

Pattern coverage: 0.000% (0 MiB out of 899 MiB reference memory)

After features/support/hooks.rb:330 0.742
After features/support/hooks.rb:100 0.000
23.273
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 7.916
And I prepare Tails for memory erasure tests 0.410
And I find very few patterns in the guest's memory 3.089

Pattern coverage: 0.000% (0 MiB out of 918 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.777
Then patterns cover at least 99% of the test FS size in the guest's memory 3.564

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I umount "/mnt" 0.401
Then I find very few patterns in the guest's memory after 3 seconds 6.114

Pattern coverage: 0.000% (0 MiB out of 918 MiB reference memory)

After features/support/hooks.rb:330 0.700
After features/support/hooks.rb:100 0.000
44.783
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 7.891
And I prepare Tails for memory erasure tests 0.375
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.230
Then I find very few patterns in the guest's memory 3.277

Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.535
Then patterns cover at least 75% of the test FS size in the guest's memory 3.983

Pattern coverage: 86.598% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.024
Then I find very few patterns in the guest's memory after 3 seconds 6.038

Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)

# read cache
When I mount the USB drive again 0.231
And I read the content of the test FS 0.450
Then patterns cover at least 99% of the test FS size in the guest's memory 3.407

Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.388
Then I find very few patterns in the guest's memory after 3 seconds 5.948

Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)

After features/support/hooks.rb:330 0.722
After features/support/hooks.rb:100 0.000
1:11.330
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 7.888
And I prepare Tails for memory erasure tests 0.361
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.987
Then I find very few patterns in the guest's memory 2.615

Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.666
Then patterns cover at least 99% of the test FS size in the guest's memory 3.020

Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.666
Then I find very few patterns in the guest's memory after 3 seconds 5.682

Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)

# read cache
When I mount the USB drive again 3.865
And I read the content of the test FS 0.611
Then patterns cover at least 99% of the test FS size in the guest's memory 2.834

Pattern coverage: 106.117% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.492
Then I find very few patterns in the guest's memory after 3 seconds 5.637

Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)

After features/support/hooks.rb:330 0.941
After features/support/hooks.rb:100 0.000
51.748
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 7.808
And I prepare Tails for memory erasure tests 0.384
When I fill a 128 MiB file with a known pattern on the root filesystem 18.252
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.924
Then patterns cover at least 128 MiB in the guest's memory 2.579

Pattern coverage: 100.000% (128 MiB out of 128 MiB reference memory)

When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 20.785

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

After features/support/hooks.rb:330 3.486
After features/support/hooks.rb:100 0.000
7:18.871
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:34.813
And I prepare Tails for memory erasure tests 0.385
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.443
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.216

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

After features/support/hooks.rb:330 3.527
After features/support/hooks.rb:100 0.012