Project Number Date
test_Tails_ISO_20530-tca-controls-tor-flag-file 89 27 Jan 2025, 22:06

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 12:7.410 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.
37.032
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 21.161
And I prepare Tails for memory erasure tests 0.425
When I start a process allocating 128 MiB of memory with a known pattern 2.273
Then patterns cover at least 128 MiB in the guest's memory 3.587

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

When I kill the allocating process 1.627
Then I find very few patterns in the guest's memory after 5 seconds 7.956

Pattern coverage: 0.000% (0 MiB out of 927 MiB reference memory)

After features/support/hooks.rb:326 0.840
After features/support/hooks.rb:100 0.000
28.586
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.349
And I prepare Tails for memory erasure tests 0.457
And I find very few patterns in the guest's memory 4.181

Pattern coverage: 0.000% (0 MiB out of 931 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.463
Then patterns cover at least 99% of the test FS size in the guest's memory 6.237

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

When I umount "/mnt" 1.106
Then I find very few patterns in the guest's memory after 3 seconds 5.790

Pattern coverage: 0.000% (0 MiB out of 931 MiB reference memory)

After features/support/hooks.rb:326 0.840
After features/support/hooks.rb:100 0.000
50.144
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.153
And I prepare Tails for memory erasure tests 0.533
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.212
Then I find very few patterns in the guest's memory 3.017

Pattern coverage: 0.000% (0 MiB out of 927 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.087
Then patterns cover at least 75% of the test FS size in the guest's memory 3.275

Pattern coverage: 87.700% (111 MiB out of 127 MiB reference memory)

When I umount the USB drive 3.524
Then I find very few patterns in the guest's memory after 3 seconds 6.023

Pattern coverage: 0.000% (0 MiB out of 927 MiB reference memory)

# read cache
When I mount the USB drive again 0.269
And I read the content of the test FS 0.769
Then patterns cover at least 99% of the test FS size in the guest's memory 4.053

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

When I umount the USB drive 0.792
Then I find very few patterns in the guest's memory after 3 seconds 6.431

Pattern coverage: 0.000% (0 MiB out of 927 MiB reference memory)

After features/support/hooks.rb:326 0.824
After features/support/hooks.rb:100 0.000
1:16.544
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.130
And I prepare Tails for memory erasure tests 0.505
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 38.194
Then I find very few patterns in the guest's memory 2.693

Pattern coverage: 0.000% (0 MiB out of 929 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.994
Then patterns cover at least 99% of the test FS size in the guest's memory 2.956

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

When I umount the USB drive 1.013
Then I find very few patterns in the guest's memory after 3 seconds 5.361

Pattern coverage: 0.000% (0 MiB out of 929 MiB reference memory)

# read cache
When I mount the USB drive again 5.526
And I read the content of the test FS 0.851
Then patterns cover at least 99% of the test FS size in the guest's memory 2.793

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

When I umount the USB drive 0.865
Then I find very few patterns in the guest's memory after 3 seconds 5.656

Pattern coverage: 0.000% (0 MiB out of 929 MiB reference memory)

After features/support/hooks.rb:326 0.806
After features/support/hooks.rb:100 0.000
50.187
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.439
And I prepare Tails for memory erasure tests 0.482
When I fill a 128 MiB file with a known pattern on the root filesystem 15.708
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.628
Then patterns cover at least 128 MiB in the guest's memory 2.922

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 20.993

Pattern coverage: 0.000% (0 MiB out of 927 MiB reference memory)

After features/support/hooks.rb:326 3.539
After features/support/hooks.rb:100 0.000
8:4.915
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 7:20.119
And I prepare Tails for memory erasure tests 0.574
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.963
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.243

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

After features/support/hooks.rb:326 3.521
After features/support/hooks.rb:100 0.011