Project Number Date
test_Tails_ISO_20530-tca-controls-tor-flag-file 57 17 Dec 2024, 21:31

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 12:59.722 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.
39.956
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 22.602
And I prepare Tails for memory erasure tests 0.725
When I start a process allocating 128 MiB of memory with a known pattern 2.426
Then patterns cover at least 128 MiB in the guest's memory 4.662

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

When I kill the allocating process 1.768
Then I find very few patterns in the guest's memory after 3 seconds 7.770

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

After features/support/hooks.rb:326 0.837
After features/support/hooks.rb:100 0.000
28.043
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.321
And I prepare Tails for memory erasure tests 0.449
And I find very few patterns in the guest's memory 3.935

Pattern coverage: 0.000% (0 MiB out of 930 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.636
Then patterns cover at least 99% of the test FS size in the guest's memory 3.757

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

When I umount "/mnt" 1.065
Then I find very few patterns in the guest's memory after 3 seconds 6.876

Pattern coverage: 0.000% (0 MiB out of 930 MiB reference memory)

After features/support/hooks.rb:326 1.003
After features/support/hooks.rb:100 0.000
53.988
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.586
And I prepare Tails for memory erasure tests 0.629
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.853
Then I find very few patterns in the guest's memory 3.750

Pattern coverage: 0.000% (0 MiB out of 913 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.352
Then patterns cover at least 75% of the test FS size in the guest's memory 4.344

Pattern coverage: 88.009% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.642
Then I find very few patterns in the guest's memory after 3 seconds 7.001

Pattern coverage: 0.000% (0 MiB out of 913 MiB reference memory)

# read cache
When I mount the USB drive again 0.263
And I read the content of the test FS 0.710
Then patterns cover at least 99% of the test FS size in the guest's memory 4.235

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

When I umount the USB drive 1.958
Then I find very few patterns in the guest's memory after 3 seconds 6.659

Pattern coverage: 0.000% (0 MiB out of 913 MiB reference memory)

After features/support/hooks.rb:326 0.801
After features/support/hooks.rb:100 0.000
1:31.680
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.305
And I prepare Tails for memory erasure tests 0.443
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 39.881
Then I find very few patterns in the guest's memory 3.543

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

# write cache
When I fill the USB drive with a known pattern 2.683
Then patterns cover at least 99% of the test FS size in the guest's memory 3.672

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

When I umount the USB drive 2.499
Then I find very few patterns in the guest's memory after 3 seconds 7.099

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

# read cache
When I mount the USB drive again 8.696
And I read the content of the test FS 0.796
Then patterns cover at least 99% of the test FS size in the guest's memory 5.924

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

When I umount the USB drive 1.991
Then I find very few patterns in the guest's memory after 3 seconds 6.143

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

After features/support/hooks.rb:326 0.919
After features/support/hooks.rb:100 0.001
53.117
Before features/support/hooks.rb:269 0.004
Given I have started Tails from DVD without network and logged in 8.993
And I prepare Tails for memory erasure tests 0.510
When I fill a 128 MiB file with a known pattern on the root filesystem 16.864
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.124
Then patterns cover at least 128 MiB in the guest's memory 3.573

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 21.033

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

After features/support/hooks.rb:326 3.546
After features/support/hooks.rb:100 0.000
8:32.936
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 7:44.903
And I prepare Tails for memory erasure tests 0.478
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.125
When I trigger shutdown 0.020
Then I find very few patterns in the guest's memory after 20 seconds 21.408

Pattern coverage: 0.000% (0 MiB out of 922 MiB reference memory)

After features/support/hooks.rb:326 3.811
After features/support/hooks.rb:100 0.015