Project Number Date
test_Tails_ISO_20530-tca-controls-tor-flag-file 75 04 Jan 2025, 20:46

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 11:4.188 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.
20.718
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.183
And I prepare Tails for memory erasure tests 0.473
When I start a process allocating 128 MiB of memory with a known pattern 2.353
Then patterns cover at least 128 MiB in the guest's memory 3.559

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

When I kill the allocating process 0.202
Then I find very few patterns in the guest's memory after 3 seconds 5.945

Pattern coverage: 0.000% (0 MiB out of 918 MiB reference memory)

After features/support/hooks.rb:326 0.712
After features/support/hooks.rb:100 0.000
32.767
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.339
And I prepare Tails for memory erasure tests 0.388
And I find very few patterns in the guest's memory 5.529

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.517
Then patterns cover at least 99% of the test FS size in the guest's memory 4.711

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

When I umount "/mnt" 2.778
Then I find very few patterns in the guest's memory after 3 seconds 8.502

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

After features/support/hooks.rb:326 1.364
After features/support/hooks.rb:100 0.000
52.350
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.226
And I prepare Tails for memory erasure tests 0.467
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.157
Then I find very few patterns in the guest's memory 2.580

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 5.621
Then patterns cover at least 75% of the test FS size in the guest's memory 3.858

Pattern coverage: 90.415% (115 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.596
Then I find very few patterns in the guest's memory after 3 seconds 6.546

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

# read cache
When I mount the USB drive again 0.329
And I read the content of the test FS 0.482
Then patterns cover at least 99% of the test FS size in the guest's memory 3.992

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

When I umount the USB drive 0.768
Then I find very few patterns in the guest's memory after 3 seconds 6.724

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

After features/support/hooks.rb:326 0.716
After features/support/hooks.rb:100 0.000
1:14.155
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.278
And I prepare Tails for memory erasure tests 0.424
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.509
Then I find very few patterns in the guest's memory 2.765

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

# write cache
When I fill the USB drive with a known pattern 2.347
Then patterns cover at least 99% of the test FS size in the guest's memory 2.730

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

When I umount the USB drive 1.091
Then I find very few patterns in the guest's memory after 3 seconds 5.631

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

# read cache
When I mount the USB drive again 7.740
And I read the content of the test FS 0.421
Then patterns cover at least 99% of the test FS size in the guest's memory 2.641

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

When I umount the USB drive 0.665
Then I find very few patterns in the guest's memory after 3 seconds 5.906

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

After features/support/hooks.rb:326 2.405
After features/support/hooks.rb:100 0.000
52.951
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.174
And I prepare Tails for memory erasure tests 0.442
When I fill a 128 MiB file with a known pattern on the root filesystem 18.927
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.951
Then patterns cover at least 128 MiB in the guest's memory 2.634

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 20.809

Pattern coverage: 0.000% (0 MiB out of 912 MiB reference memory)

After features/support/hooks.rb:326 3.510
After features/support/hooks.rb:100 0.000
7:11.244
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 6:22.326
And I prepare Tails for memory erasure tests 0.678
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.871
When I trigger shutdown 0.011
Then I find very few patterns in the guest's memory after 20 seconds 21.355

Pattern coverage: 0.000% (0 MiB out of 920 MiB reference memory)

After features/support/hooks.rb:326 3.572
After features/support/hooks.rb:100 0.012