Project Number Date
test_Tails_ISO_20530-tca-controls-tor-flag-file 29 25 Nov 2024, 21:48

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 10:55.281 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.
22.500
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 7.981
And I prepare Tails for memory erasure tests 0.516
When I start a process allocating 128 MiB of memory with a known pattern 2.563
Then patterns cover at least 128 MiB in the guest's memory 4.173

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

When I kill the allocating process 1.226
Then I find very few patterns in the guest's memory after 3 seconds 6.039

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

After features/support/hooks.rb:326 0.831
After features/support/hooks.rb:100 0.000
25.852
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.872
And I prepare Tails for memory erasure tests 0.454
And I find very few patterns in the guest's memory 3.792

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.189
Then patterns cover at least 99% of the test FS size in the guest's memory 4.175

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

When I umount "/mnt" 0.823
Then I find very few patterns in the guest's memory after 3 seconds 6.545

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

After features/support/hooks.rb:326 0.821
After features/support/hooks.rb:100 0.000
46.354
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.042
And I prepare Tails for memory erasure tests 0.483
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 3.291

Pattern coverage: 0.000% (0 MiB out of 936 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.654
Then patterns cover at least 75% of the test FS size in the guest's memory 3.801

Pattern coverage: 86.582% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.763
Then I find very few patterns in the guest's memory after 3 seconds 6.197

Pattern coverage: 0.000% (0 MiB out of 936 MiB reference memory)

# read cache
When I mount the USB drive again 0.345
And I read the content of the test FS 0.493
Then patterns cover at least 99% of the test FS size in the guest's memory 3.435

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

When I umount the USB drive 0.656
Then I find very few patterns in the guest's memory after 3 seconds 6.014

Pattern coverage: 0.000% (0 MiB out of 936 MiB reference memory)

After features/support/hooks.rb:326 0.858
After features/support/hooks.rb:100 0.000
1:18.658
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 7.936
And I prepare Tails for memory erasure tests 0.435
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 39.985
Then I find very few patterns in the guest's memory 2.682

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

# write cache
When I fill the USB drive with a known pattern 2.166
Then patterns cover at least 99% of the test FS size in the guest's memory 2.989

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

When I umount the USB drive 1.019
Then I find very few patterns in the guest's memory after 3 seconds 6.090

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

# read cache
When I mount the USB drive again 5.566
And I read the content of the test FS 0.396
Then patterns cover at least 99% of the test FS size in the guest's memory 3.004

Pattern coverage: 106.117% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.727
Then I find very few patterns in the guest's memory after 3 seconds 5.657

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

After features/support/hooks.rb:326 1.005
After features/support/hooks.rb:100 0.000
48.964
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.994
And I prepare Tails for memory erasure tests 0.450
When I fill a 128 MiB file with a known pattern on the root filesystem 14.910
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.065
Then patterns cover at least 128 MiB in the guest's memory 2.684

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 20.846

Pattern coverage: 0.000% (0 MiB out of 940 MiB reference memory)

After features/support/hooks.rb:326 3.474
After features/support/hooks.rb:100 0.000
7:12.950
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 6:27.047
And I prepare Tails for memory erasure tests 0.414
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.242
When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 21.230

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

After features/support/hooks.rb:326 3.503
After features/support/hooks.rb:100 0.012