Project Number Date
test_Tails_ISO_20530-tca-controls-tor-flag-file 60 20 Dec 2024, 20:38

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 10:56.025 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.
22.446
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.928
And I prepare Tails for memory erasure tests 0.419
When I start a process allocating 128 MiB of memory with a known pattern 2.458
Then patterns cover at least 128 MiB in the guest's memory 3.996

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

When I kill the allocating process 1.414
Then I find very few patterns in the guest's memory after 3 seconds 6.230

Pattern coverage: 0.000% (0 MiB out of 923 MiB reference memory)

After features/support/hooks.rb:326 0.962
After features/support/hooks.rb:100 0.000
24.504
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.920
And I prepare Tails for memory erasure tests 0.484
And I find very few patterns in the guest's memory 3.353

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.925
Then patterns cover at least 99% of the test FS size in the guest's memory 3.651

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

When I umount "/mnt" 0.622
Then I find very few patterns in the guest's memory after 3 seconds 6.544

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

After features/support/hooks.rb:326 0.957
After features/support/hooks.rb:100 0.000
46.455
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.091
And I prepare Tails for memory erasure tests 0.530
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.155
Then I find very few patterns in the guest's memory 3.192

Pattern coverage: 0.000% (0 MiB out of 921 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.360
Then patterns cover at least 75% of the test FS size in the guest's memory 3.573

Pattern coverage: 88.312% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.398
Then I find very few patterns in the guest's memory after 3 seconds 6.273

Pattern coverage: 0.000% (0 MiB out of 921 MiB reference memory)

# read cache
When I mount the USB drive again 0.240
And I read the content of the test FS 0.504
Then patterns cover at least 99% of the test FS size in the guest's memory 3.577

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

When I umount the USB drive 0.515
Then I find very few patterns in the guest's memory after 3 seconds 6.043

Pattern coverage: 0.000% (0 MiB out of 921 MiB reference memory)

After features/support/hooks.rb:326 1.033
After features/support/hooks.rb:100 0.000
1:16.725
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.495
And I prepare Tails for memory erasure tests 0.483
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 38.615
Then I find very few patterns in the guest's memory 2.348

Pattern coverage: 0.000% (0 MiB out of 914 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.266
Then patterns cover at least 99% of the test FS size in the guest's memory 2.847

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

When I umount the USB drive 1.140
Then I find very few patterns in the guest's memory after 3 seconds 5.591

Pattern coverage: 0.000% (0 MiB out of 914 MiB reference memory)

# read cache
When I mount the USB drive again 4.955
And I read the content of the test FS 0.515
Then patterns cover at least 99% of the test FS size in the guest's memory 3.040

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

When I umount the USB drive 0.856
Then I find very few patterns in the guest's memory after 3 seconds 5.568

Pattern coverage: 0.000% (0 MiB out of 914 MiB reference memory)

After features/support/hooks.rb:326 0.926
After features/support/hooks.rb:100 0.000
52.052
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.016
And I prepare Tails for memory erasure tests 0.466
When I fill a 128 MiB file with a known pattern on the root filesystem 18.231
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.934
Then patterns cover at least 128 MiB in the guest's memory 2.622

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

When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 20.765

Pattern coverage: 0.000% (0 MiB out of 919 MiB reference memory)

After features/support/hooks.rb:326 3.529
After features/support/hooks.rb:100 0.000
7:13.840
Before features/support/hooks.rb:269 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:28.545
And I prepare Tails for memory erasure tests 0.884
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.204
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.193

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

After features/support/hooks.rb:326 3.486
After features/support/hooks.rb:100 0.011