Project Number Date
test_Tails_ISO_stable 4960 22 Jul 2024, 12:26

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 12:40.599 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.
24.103
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.557
And I prepare Tails for memory erasure tests 0.519
When I start a process allocating 128 MiB of memory with a known pattern 2.415
Then patterns cover at least 128 MiB in the guest's memory 4.443

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

When I kill the allocating process 2.761
Then I find very few patterns in the guest's memory 5.407

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

After features/support/hooks.rb:326 0.803
After features/support/hooks.rb:100 0.000
25.648
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.126
And I prepare Tails for memory erasure tests 0.535
And I find very few patterns in the guest's memory 4.775

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.416
Then patterns cover at least 99% of the test FS size in the guest's memory 4.155

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

When I umount "/mnt" 0.937
Then I find very few patterns in the guest's memory 4.701

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

After features/support/hooks.rb:326 1.274
After features/support/hooks.rb:100 0.000
50.295
Before features/support/hooks.rb:269 0.005
Given I have started Tails from DVD without network and logged in 8.720
And I prepare Tails for memory erasure tests 0.403
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.157
Then I find very few patterns in the guest's memory 4.598

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.185
Then patterns cover at least 86% of the test FS size in the guest's memory 4.878

Pattern coverage: 90.574% (115 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.860
Then I find very few patterns in the guest's memory 4.862

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

# read cache
When I mount the USB drive again 0.832
And I read the content of the test FS 1.130
Then patterns cover at least 99% of the test FS size in the guest's memory 4.065

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

When I umount the USB drive 1.111
Then I find very few patterns in the guest's memory 4.487

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

After features/support/hooks.rb:326 0.939
After features/support/hooks.rb:100 0.000
1:17.875
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.258
And I prepare Tails for memory erasure tests 0.444
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.667
Then I find very few patterns in the guest's memory 3.429

Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.317
Then patterns cover at least 99% of the test FS size in the guest's memory 3.173

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

When I umount the USB drive 1.650
Then I find very few patterns in the guest's memory 3.831

Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)

# read cache
When I mount the USB drive again 9.244
And I read the content of the test FS 0.442
Then patterns cover at least 99% of the test FS size in the guest's memory 3.670

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

When I umount the USB drive 0.749
Then I find very few patterns in the guest's memory 3.994

Pattern coverage: 0.000% (0 MiB out of 887 MiB reference memory)

After features/support/hooks.rb:326 1.887
After features/support/hooks.rb:100 0.000
52.814
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.708
And I prepare Tails for memory erasure tests 0.400
When I fill a 128 MiB file with a known pattern on the root filesystem 17.131
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.577
Then patterns cover at least 128 MiB in the guest's memory 3.197

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

When I trigger shutdown 0.022
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.756

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

After features/support/hooks.rb:326 3.529
After features/support/hooks.rb:100 0.000
8:49.862
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 8:2.335
And I prepare Tails for memory erasure tests 0.446
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.514
When I trigger shutdown 0.012
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.532

Pattern coverage: 0.000% (0 MiB out of 878 MiB reference memory)

After features/support/hooks.rb:326 3.561
After features/support/hooks.rb:100 0.012