Project Number Date
test_Tails_ISO_stable 5086 09 Sep 2024, 15:03

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 11:52.720 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.
25.745
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.520
And I prepare Tails for memory erasure tests 0.479
When I start a process allocating 128 MiB of memory with a known pattern 2.758
Then patterns cover at least 128 MiB in the guest's memory 6.115

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

When I kill the allocating process 1.391
Then I find very few patterns in the guest's memory after 3 seconds 6.480

Pattern coverage: 0.000% (0 MiB out of 908 MiB reference memory)

After features/support/hooks.rb:326 1.495
After features/support/hooks.rb:100 0.000
30.185
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.321
And I prepare Tails for memory erasure tests 0.444
And I find very few patterns in the guest's memory 3.805

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 3.688
Then patterns cover at least 99% of the test FS size in the guest's memory 4.437

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

When I umount "/mnt" 1.044
Then I find very few patterns in the guest's memory after 3 seconds 8.443

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

After features/support/hooks.rb:326 2.670
After features/support/hooks.rb:100 0.000
59.902
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 11.196
And I prepare Tails for memory erasure tests 0.689
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.536
Then I find very few patterns in the guest's memory 4.127

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

# write cache
When I fill the USB drive with a known pattern 3.130
Then patterns cover at least 75% of the test FS size in the guest's memory 4.827

Pattern coverage: 86.922% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.856
Then I find very few patterns in the guest's memory after 3 seconds 6.968

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

# read cache
When I mount the USB drive again 0.568
And I read the content of the test FS 3.461
Then patterns cover at least 99% of the test FS size in the guest's memory 4.652

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

When I umount the USB drive 0.775
Then I find very few patterns in the guest's memory after 3 seconds 7.110

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

After features/support/hooks.rb:326 1.067
After features/support/hooks.rb:100 0.000
1:21.689
Before features/support/hooks.rb:269 0.004
Given I have started Tails from DVD without network and logged in 9.343
And I prepare Tails for memory erasure tests 0.515
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.026
Then I find very few patterns in the guest's memory 3.271

Pattern coverage: 0.000% (0 MiB out of 911 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.011
Then patterns cover at least 99% of the test FS size in the guest's memory 3.629

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

When I umount the USB drive 2.208
Then I find very few patterns in the guest's memory after 3 seconds 6.155

Pattern coverage: 0.000% (0 MiB out of 911 MiB reference memory)

# read cache
When I mount the USB drive again 6.415
And I read the content of the test FS 2.015
Then patterns cover at least 99% of the test FS size in the guest's memory 3.715

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

When I umount the USB drive 1.002
Then I find very few patterns in the guest's memory after 3 seconds 6.378

Pattern coverage: 0.000% (0 MiB out of 911 MiB reference memory)

After features/support/hooks.rb:326 1.575
After features/support/hooks.rb:100 0.000
53.914
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.680
And I prepare Tails for memory erasure tests 0.420
When I fill a 128 MiB file with a known pattern on the root filesystem 18.688
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.107
Then patterns cover at least 128 MiB in the guest's memory 3.082

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

When I trigger shutdown 0.017
Then I find very few patterns in the guest's memory after 20 seconds 20.918

Pattern coverage: 0.000% (0 MiB out of 911 MiB reference memory)

After features/support/hooks.rb:326 3.594
After features/support/hooks.rb:100 0.000
7:41.282
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 6:56.875
And I prepare Tails for memory erasure tests 0.417
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.824
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.151

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:326 3.526
After features/support/hooks.rb:100 0.014