Project Number Date
test_Tails_ISO_20530-tca-controls-tor-flag-file 18 15 Nov 2024, 21:02

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 12:18.421 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.
21.810
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.176
And I prepare Tails for memory erasure tests 0.460
When I start a process allocating 128 MiB of memory with a known pattern 2.391
Then patterns cover at least 128 MiB in the guest's memory 3.392

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

When I kill the allocating process 1.067
Then I find very few patterns in the guest's memory after 3 seconds 6.321

Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)

After features/support/hooks.rb:326 1.225
After features/support/hooks.rb:100 0.000
26.774
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.078
And I prepare Tails for memory erasure tests 0.440
And I find very few patterns in the guest's memory 3.606

Pattern coverage: 0.000% (0 MiB out of 911 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.059
Then patterns cover at least 99% of the test FS size in the guest's memory 4.166

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

When I umount "/mnt" 0.829
Then I find very few patterns in the guest's memory after 3 seconds 6.593

Pattern coverage: 0.000% (0 MiB out of 911 MiB reference memory)

After features/support/hooks.rb:326 0.831
After features/support/hooks.rb:100 0.000
1:6.943
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.410
And I prepare Tails for memory erasure tests 0.502
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.312
Then I find very few patterns in the guest's memory 4.675

Pattern coverage: 0.000% (0 MiB out of 915 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 4.162
Then patterns cover at least 75% of the test FS size in the guest's memory 6.109

Pattern coverage: 93.400% (119 MiB out of 127 MiB reference memory)

When I umount the USB drive 2.334
Then I find very few patterns in the guest's memory after 3 seconds 11.732

Pattern coverage: 0.000% (0 MiB out of 915 MiB reference memory)

# read cache
When I mount the USB drive again 0.317
And I read the content of the test FS 0.940
Then patterns cover at least 99% of the test FS size in the guest's memory 9.103

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

When I umount the USB drive 1.444
Then I find very few patterns in the guest's memory after 3 seconds 6.897

Pattern coverage: 0.000% (0 MiB out of 915 MiB reference memory)

After features/support/hooks.rb:326 0.802
After features/support/hooks.rb:100 0.000
1:19.748
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.296
And I prepare Tails for memory erasure tests 0.464
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 37.395
Then I find very few patterns in the guest's memory 2.974

Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.013
Then patterns cover at least 99% of the test FS size in the guest's memory 3.446

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

When I umount the USB drive 1.235
Then I find very few patterns in the guest's memory after 3 seconds 6.882

Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)

# read cache
When I mount the USB drive again 6.288
And I read the content of the test FS 0.373
Then patterns cover at least 99% of the test FS size in the guest's memory 3.025

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

When I umount the USB drive 0.869
Then I find very few patterns in the guest's memory after 3 seconds 5.483

Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)

After features/support/hooks.rb:326 1.095
After features/support/hooks.rb:100 0.000
53.949
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.504
And I prepare Tails for memory erasure tests 0.543
When I fill a 128 MiB file with a known pattern on the root filesystem 16.600
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.128
Then patterns cover at least 128 MiB in the guest's memory 5.163

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

When I trigger shutdown 0.022
Then I find very few patterns in the guest's memory after 20 seconds 20.987

Pattern coverage: 0.000% (0 MiB out of 916 MiB reference memory)

After features/support/hooks.rb:326 3.623
After features/support/hooks.rb:100 0.000
8:9.193
Before features/support/hooks.rb:269 0.006
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:24.675
And I prepare Tails for memory erasure tests 0.484
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.388
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.631

Pattern coverage: 0.000% (0 MiB out of 924 MiB reference memory)

After features/support/hooks.rb:326 3.498
After features/support/hooks.rb:100 0.011