Project Number Date
test_Tails_ISO_devel 3554 19 Oct 2024, 12:16

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 10:52.537 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.
21.962
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.836
And I prepare Tails for memory erasure tests 0.561
When I start a process allocating 128 MiB of memory with a known pattern 2.274
Then patterns cover at least 128 MiB in the guest's memory 3.691

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

When I kill the allocating process 1.221
Then I find very few patterns in the guest's memory after 3 seconds 6.376

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

After features/support/hooks.rb:326 0.778
After features/support/hooks.rb:100 0.000
25.106
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.149
And I prepare Tails for memory erasure tests 0.601
And I find very few patterns in the guest's memory 3.312

Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.113
Then patterns cover at least 99% of the test FS size in the guest's memory 3.859

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

When I umount "/mnt" 0.838
Then I find very few patterns in the guest's memory after 3 seconds 6.232

Pattern coverage: 0.000% (0 MiB out of 907 MiB reference memory)

After features/support/hooks.rb:326 0.803
After features/support/hooks.rb:100 0.000
49.448
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 7.964
And I prepare Tails for memory erasure tests 0.633
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.140
Then I find very few patterns in the guest's memory 3.186

Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.150
Then patterns cover at least 75% of the test FS size in the guest's memory 3.580

Pattern coverage: 90.338% (115 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.806
Then I find very few patterns in the guest's memory after 3 seconds 6.236

Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)

# read cache
When I mount the USB drive again 0.298
And I read the content of the test FS 1.146
Then patterns cover at least 99% of the test FS size in the guest's memory 4.091

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

When I umount the USB drive 1.046
Then I find very few patterns in the guest's memory after 3 seconds 6.166

Pattern coverage: 0.000% (0 MiB out of 903 MiB reference memory)

After features/support/hooks.rb:326 0.912
After features/support/hooks.rb:100 0.000
1:19.805
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.534
And I prepare Tails for memory erasure tests 0.514
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 41.181
Then I find very few patterns in the guest's memory 2.646

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

# write cache
When I fill the USB drive with a known pattern 1.804
Then patterns cover at least 99% of the test FS size in the guest's memory 3.184

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

When I umount the USB drive 0.882
Then I find very few patterns in the guest's memory after 3 seconds 5.870

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

# read cache
When I mount the USB drive again 5.298
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 3.042

Pattern coverage: 106.116% (97 MiB out of 91 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 5.695

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

After features/support/hooks.rb:326 0.868
After features/support/hooks.rb:100 0.000
47.205
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 7.754
And I prepare Tails for memory erasure tests 0.551
When I fill a 128 MiB file with a known pattern on the root filesystem 13.571
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.667
Then patterns cover at least 128 MiB in the guest's memory 2.887

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

When I trigger shutdown 0.020
Then I find very few patterns in the guest's memory after 20 seconds 20.752

Pattern coverage: 0.000% (0 MiB out of 899 MiB reference memory)

After features/support/hooks.rb:326 3.497
After features/support/hooks.rb:100 0.000
7:9.008
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 6:24.957
And I prepare Tails for memory erasure tests 0.508
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.280
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.249

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

After features/support/hooks.rb:326 3.523
After features/support/hooks.rb:100 0.014