Project Number Date
test_Tails_ISO_stable 4956 19 Jul 2024, 08:32

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 53 0 0 0 0 53 6 0 6 11:52.509 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.
23.344
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.775
And I prepare Tails for memory erasure tests 0.652
When I start a process allocating 128 MiB of memory with a known pattern 3.990
Then patterns cover at least 128 MiB in the guest's memory 3.580

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

When I kill the allocating process 1.872
Then I find very few patterns in the guest's memory 4.471

Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)

After features/support/hooks.rb:326 1.652
After features/support/hooks.rb:100 0.000
25.792
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.556
And I prepare Tails for memory erasure tests 0.504
And I find very few patterns in the guest's memory 4.387

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.378
Then patterns cover at least 99% of the test FS size in the guest's memory 3.503

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

When I umount "/mnt" 1.064
Then I find very few patterns in the guest's memory 4.396

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

After features/support/hooks.rb:326 1.130
After features/support/hooks.rb:100 0.000
48.853
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.738
And I prepare Tails for memory erasure tests 0.500
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.173
Then I find very few patterns in the guest's memory 4.446

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.853
Then patterns cover at least 86% of the test FS size in the guest's memory 3.935

Pattern coverage: 92.775% (118 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.633
Then I find very few patterns in the guest's memory 4.733

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

# read cache
When I mount the USB drive again 0.241
And I read the content of the test FS 0.615
Then patterns cover at least 99% of the test FS size in the guest's memory 4.170

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

When I umount the USB drive 2.088
Then I find very few patterns in the guest's memory 4.722

Pattern coverage: 0.000% (0 MiB out of 875 MiB reference memory)

After features/support/hooks.rb:326 2.500
After features/support/hooks.rb:100 0.000
1:18.878
Before features/support/hooks.rb:269 0.004
Given I have started Tails from DVD without network and logged in 8.350
And I prepare Tails for memory erasure tests 0.442
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.673
Then I find very few patterns in the guest's memory 4.287

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.135
Then patterns cover at least 99% of the test FS size in the guest's memory 3.773

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

When I umount the USB drive 2.498
Then I find very few patterns in the guest's memory 4.534

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

# read cache
When I mount the USB drive again 7.971
And I read the content of the test FS 0.559
Then patterns cover at least 99% of the test FS size in the guest's memory 3.225

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

When I umount the USB drive 0.829
Then I find very few patterns in the guest's memory 3.596

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

After features/support/hooks.rb:326 0.891
After features/support/hooks.rb:100 0.000
53.337
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.881
And I prepare Tails for memory erasure tests 0.556
When I fill a 128 MiB file with a known pattern on the root filesystem 17.429
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.982
Then patterns cover at least 128 MiB in the guest's memory 2.589

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

When I trigger shutdown 0.016
And I wait 20 seconds 20.010

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.871

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

After features/support/hooks.rb:326 3.553
After features/support/hooks.rb:100 0.000
8:2.303
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 7:18.201
And I prepare Tails for memory erasure tests 0.431
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.401
When I trigger shutdown 0.012
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.235

Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)

After features/support/hooks.rb:326 3.509
After features/support/hooks.rb:100 0.015