Project Number Date
test_Tails_ISO_20522-ocr-more 46 30 Jan 2025, 16:01

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 12:27.352 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.
25.167
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.460
And I prepare Tails for memory erasure tests 0.620
When I start a process allocating 128 MiB of memory with a known pattern 2.268
Then patterns cover at least 128 MiB in the guest's memory 3.940

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

When I kill the allocating process 0.303
Then I find very few patterns in the guest's memory after 5 seconds 9.575

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

After features/support/hooks.rb:326 1.147
After features/support/hooks.rb:100 0.000
28.421
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.511
And I prepare Tails for memory erasure tests 0.428
And I find very few patterns in the guest's memory 3.252

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 3.052
Then patterns cover at least 99% of the test FS size in the guest's memory 4.248

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

When I umount "/mnt" 1.319
Then I find very few patterns in the guest's memory after 3 seconds 6.607

Pattern coverage: 0.000% (0 MiB out of 885 MiB reference memory)

After features/support/hooks.rb:326 0.876
After features/support/hooks.rb:100 0.000
53.038
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.307
And I prepare Tails for memory erasure tests 0.520
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.505
Then I find very few patterns in the guest's memory 3.197

Pattern coverage: 0.000% (0 MiB out of 879 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 4.286

Pattern coverage: 90.629% (115 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.845
Then I find very few patterns in the guest's memory after 3 seconds 6.710

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

# read cache
When I mount the USB drive again 0.251
And I read the content of the test FS 0.886
Then patterns cover at least 99% of the test FS size in the guest's memory 5.020

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

When I umount the USB drive 0.659
Then I find very few patterns in the guest's memory after 3 seconds 6.694

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

After features/support/hooks.rb:326 0.784
After features/support/hooks.rb:100 0.000
1:44.122
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 27.343
And I prepare Tails for memory erasure tests 0.549
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 38.991
Then I find very few patterns in the guest's memory 3.598

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.522
Then patterns cover at least 99% of the test FS size in the guest's memory 3.951

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

When I umount the USB drive 1.695
Then I find very few patterns in the guest's memory after 3 seconds 6.641

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

# read cache
When I mount the USB drive again 7.908
And I read the content of the test FS 0.488
Then patterns cover at least 99% of the test FS size in the guest's memory 3.249

Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 1.164
Then I find very few patterns in the guest's memory after 3 seconds 6.016

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

After features/support/hooks.rb:326 1.230
After features/support/hooks.rb:100 0.000
58.777
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.176
And I prepare Tails for memory erasure tests 0.540
When I fill a 128 MiB file with a known pattern on the root filesystem 16.946
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 9.107
Then patterns cover at least 128 MiB in the guest's memory 2.721

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

When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.272

Pattern coverage: 0.000% (0 MiB out of 880 MiB reference memory)

After features/support/hooks.rb:326 3.471
After features/support/hooks.rb:100 0.000
7:57.824
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 7:14.414
And I prepare Tails for memory erasure tests 0.467
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.798
When I trigger shutdown 0.018
Then I find very few patterns in the guest's memory after 20 seconds 21.124

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

After features/support/hooks.rb:326 3.492
After features/support/hooks.rb:100 0.012