Project Number Date
test_Tails_ISO_stable 5127 30 Sep 2024, 18:26

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 12:39.737 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.
24.987
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.356
And I prepare Tails for memory erasure tests 0.421
When I start a process allocating 128 MiB of memory with a known pattern 5.678
Then patterns cover at least 128 MiB in the guest's memory 3.723

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

When I kill the allocating process 0.975
Then I find very few patterns in the guest's memory after 3 seconds 5.831

Pattern coverage: 0.000% (0 MiB out of 869 MiB reference memory)

After features/support/hooks.rb:326 3.384
After features/support/hooks.rb:100 0.000
30.617
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.070
And I prepare Tails for memory erasure tests 0.506
And I find very few patterns in the guest's memory 3.984

Pattern coverage: 0.000% (0 MiB out of 869 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.433
Then patterns cover at least 99% of the test FS size in the guest's memory 4.326

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

When I umount "/mnt" 3.695
Then I find very few patterns in the guest's memory after 3 seconds 6.600

Pattern coverage: 0.000% (0 MiB out of 869 MiB reference memory)

After features/support/hooks.rb:326 1.993
After features/support/hooks.rb:100 0.000
54.027
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.789
And I prepare Tails for memory erasure tests 0.513
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.788
Then I find very few patterns in the guest's memory 4.294

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.586
Then patterns cover at least 75% of the test FS size in the guest's memory 4.498

Pattern coverage: 89.074% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.737
Then I find very few patterns in the guest's memory after 3 seconds 6.653

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

# read cache
When I mount the USB drive again 0.344
And I read the content of the test FS 1.054
Then patterns cover at least 99% of the test FS size in the guest's memory 4.147

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

When I umount the USB drive 0.990
Then I find very few patterns in the guest's memory after 3 seconds 6.628

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:326 0.858
After features/support/hooks.rb:100 0.000
1:25.711
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.480
And I prepare Tails for memory erasure tests 0.564
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.535
Then I find very few patterns in the guest's memory 3.200

Pattern coverage: 0.000% (0 MiB out of 868 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.716
Then patterns cover at least 99% of the test FS size in the guest's memory 3.893

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

When I umount the USB drive 1.318
Then I find very few patterns in the guest's memory after 3 seconds 6.484

Pattern coverage: 0.000% (0 MiB out of 868 MiB reference memory)

# read cache
When I mount the USB drive again 8.577
And I read the content of the test FS 0.753
Then patterns cover at least 99% of the test FS size in the guest's memory 3.435

Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 2.350
Then I find very few patterns in the guest's memory after 3 seconds 6.400

Pattern coverage: 0.000% (0 MiB out of 868 MiB reference memory)

After features/support/hooks.rb:326 1.119
After features/support/hooks.rb:100 0.000
52.242
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.625
And I prepare Tails for memory erasure tests 0.490
When I fill a 128 MiB file with a known pattern on the root filesystem 15.841
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.804
Then patterns cover at least 128 MiB in the guest's memory 3.445

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 21.017

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

After features/support/hooks.rb:326 3.932
After features/support/hooks.rb:100 0.000
8:32.150
Before features/support/hooks.rb:269 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:45.457
And I prepare Tails for memory erasure tests 0.825
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.454
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.401

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

After features/support/hooks.rb:326 3.813
After features/support/hooks.rb:100 0.011