Project Number Date
test_Tails_ISO_20530-tca-controls-tor-flag-file 5 01 Nov 2024, 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 11:53.578 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.
24.318
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.187
And I prepare Tails for memory erasure tests 0.510
When I start a process allocating 128 MiB of memory with a known pattern 5.795
Then patterns cover at least 128 MiB in the guest's memory 3.527

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

When I kill the allocating process 0.409
Then I find very few patterns in the guest's memory after 3 seconds 5.889

Pattern coverage: 0.000% (0 MiB out of 904 MiB reference memory)

After features/support/hooks.rb:326 1.247
After features/support/hooks.rb:100 0.000
31.335
Before features/support/hooks.rb:269 0.005
Given I have started Tails from DVD without network and logged in 8.291
And I prepare Tails for memory erasure tests 0.461
And I find very few patterns in the guest's memory 3.298

Pattern coverage: 0.000% (0 MiB out of 909 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 7.683
Then patterns cover at least 99% of the test FS size in the guest's memory 3.574

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

When I umount "/mnt" 2.106
Then I find very few patterns in the guest's memory after 3 seconds 5.919

Pattern coverage: 0.000% (0 MiB out of 909 MiB reference memory)

After features/support/hooks.rb:326 0.791
After features/support/hooks.rb:100 0.000
52.530
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.143
And I prepare Tails for memory erasure tests 0.434
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.175
Then I find very few patterns in the guest's memory 2.628

Pattern coverage: 0.000% (0 MiB out of 908 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 4.348
Then patterns cover at least 75% of the test FS size in the guest's memory 3.267

Pattern coverage: 90.553% (115 MiB out of 127 MiB reference memory)

When I umount the USB drive 2.192
Then I find very few patterns in the guest's memory after 3 seconds 6.477

Pattern coverage: 0.000% (0 MiB out of 908 MiB reference memory)

# read cache
When I mount the USB drive again 0.284
And I read the content of the test FS 0.905
Then patterns cover at least 99% of the test FS size in the guest's memory 4.218

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

When I umount the USB drive 3.888
Then I find very few patterns in the guest's memory after 3 seconds 6.564

Pattern coverage: 0.000% (0 MiB out of 908 MiB reference memory)

After features/support/hooks.rb:326 1.384
After features/support/hooks.rb:100 0.000
1:15.957
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.249
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" 35.351
Then I find very few patterns in the guest's memory 2.641

Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.064
Then patterns cover at least 99% of the test FS size in the guest's memory 2.766

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

When I umount the USB drive 1.275
Then I find very few patterns in the guest's memory after 3 seconds 5.405

Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)

# read cache
When I mount the USB drive again 8.402
And I read the content of the test FS 0.435
Then patterns cover at least 99% of the test FS size in the guest's memory 2.842

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

When I umount the USB drive 0.832
Then I find very few patterns in the guest's memory after 3 seconds 5.265

Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)

After features/support/hooks.rb:326 0.927
After features/support/hooks.rb:100 0.000
1:1.743
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.750
And I prepare Tails for memory erasure tests 0.677
When I fill a 128 MiB file with a known pattern on the root filesystem 19.075
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 9.748
Then patterns cover at least 128 MiB in the guest's memory 2.692

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

When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 20.782

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

After features/support/hooks.rb:326 3.802
After features/support/hooks.rb:100 0.000
7:47.693
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 7:4.582
And I prepare Tails for memory erasure tests 0.420
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.354
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.323

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

After features/support/hooks.rb:326 3.581
After features/support/hooks.rb:100 0.013