Project Number Date
test_Tails_ISO_stable 4937 12 Jul 2024, 12:35

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 53 0 0 0 0 53 6 0 6 11:39.774 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.
21.997
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.756
And I prepare Tails for memory erasure tests 0.460
When I start a process allocating 128 MiB of memory with a known pattern 1.230
Then patterns cover at least 128 MiB in the guest's memory 3.807

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

When I kill the allocating process 3.762
Then I find very few patterns in the guest's memory 3.980

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

After features/support/hooks.rb:326 2.429
After features/support/hooks.rb:100 0.000
24.000
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.269
And I prepare Tails for memory erasure tests 0.454
And I find very few patterns in the guest's memory 4.425

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.535
Then patterns cover at least 99% of the test FS size in the guest's memory 4.207

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

When I umount "/mnt" 0.464
Then I find very few patterns in the guest's memory 4.645

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

After features/support/hooks.rb:326 1.896
After features/support/hooks.rb:100 0.000
50.383
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 10.015
And I prepare Tails for memory erasure tests 0.541
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.095
Then I find very few patterns in the guest's memory 5.077

Pattern coverage: 0.000% (0 MiB out of 874 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.405
Then patterns cover at least 86% of the test FS size in the guest's memory 4.766

Pattern coverage: 86.423% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.582
Then I find very few patterns in the guest's memory 5.388

Pattern coverage: 0.000% (0 MiB out of 874 MiB reference memory)

# read cache
When I mount the USB drive again 0.924
And I read the content of the test FS 0.795
Then patterns cover at least 99% of the test FS size in the guest's memory 3.623

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

When I umount the USB drive 0.871
Then I find very few patterns in the guest's memory 4.294

Pattern coverage: 0.000% (0 MiB out of 874 MiB reference memory)

After features/support/hooks.rb:326 0.913
After features/support/hooks.rb:100 0.000
1:13.978
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.783
And I prepare Tails for memory erasure tests 0.558
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.738
Then I find very few patterns in the guest's memory 3.591

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.940
Then patterns cover at least 99% of the test FS size in the guest's memory 3.417

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

When I umount the USB drive 1.798
Then I find very few patterns in the guest's memory 4.112

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

# read cache
When I mount the USB drive again 5.408
And I read the content of the test FS 0.406
Then patterns cover at least 99% of the test FS size in the guest's memory 3.485

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

When I umount the USB drive 0.754
Then I find very few patterns in the guest's memory 3.983

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

After features/support/hooks.rb:326 0.877
After features/support/hooks.rb:100 0.000
53.943
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.657
And I prepare Tails for memory erasure tests 0.442
When I fill a 128 MiB file with a known pattern on the root filesystem 17.334
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.377
Then patterns cover at least 128 MiB in the guest's memory 3.228

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

When I trigger shutdown 0.013
And I wait 20 seconds 20.004

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.885

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

After features/support/hooks.rb:326 3.526
After features/support/hooks.rb:100 0.000
7:55.470
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 7:9.550
And I prepare Tails for memory erasure tests 0.439
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.271
When I trigger shutdown 0.014
And I wait 20 seconds 20.004

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.190

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

After features/support/hooks.rb:326 3.521
After features/support/hooks.rb:100 0.011