Project Number Date
test_Tails_ISO_stable 4891 15 Jun 2024, 13:16

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 12:7.447 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.
20.776
Before features/support/hooks.rb:269 0.004
Given I have started Tails from DVD without network and logged in 8.299
And I prepare Tails for memory erasure tests 0.470
When I start a process allocating 128 MiB of memory with a known pattern 2.611
Then patterns cover at least 128 MiB in the guest's memory 3.793

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

When I kill the allocating process 1.318
Then I find very few patterns in the guest's memory 4.282

Pattern coverage: 0.000% (0 MiB out of 852 MiB reference memory)

After features/support/hooks.rb:320 0.819
After features/support/hooks.rb:100 0.000
25.769
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.389
And I prepare Tails for memory erasure tests 0.475
And I find very few patterns in the guest's memory 4.202

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 3.222
Then patterns cover at least 99% of the test FS size in the guest's memory 4.302

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

When I umount "/mnt" 0.599
Then I find very few patterns in the guest's memory 4.577

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

After features/support/hooks.rb:320 3.189
After features/support/hooks.rb:100 0.000
54.231
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.994
And I prepare Tails for memory erasure tests 0.504
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.591
Then I find very few patterns in the guest's memory 5.830

Pattern coverage: 0.000% (0 MiB out of 863 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.634
Then patterns cover at least 86% of the test FS size in the guest's memory 3.407

Pattern coverage: 86.643% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 3.498
Then I find very few patterns in the guest's memory 4.924

Pattern coverage: 0.000% (0 MiB out of 863 MiB reference memory)

# read cache
When I mount the USB drive again 0.357
And I read the content of the test FS 1.009
Then patterns cover at least 99% of the test FS size in the guest's memory 4.171

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

When I umount the USB drive 2.853
Then I find very few patterns in the guest's memory 4.452

Pattern coverage: 0.000% (0 MiB out of 863 MiB reference memory)

After features/support/hooks.rb:320 2.209
After features/support/hooks.rb:100 0.000
1:16.006
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 11.283
And I prepare Tails for memory erasure tests 0.619
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.082
Then I find very few patterns in the guest's memory 3.751

Pattern coverage: 0.000% (0 MiB out of 852 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.901
Then patterns cover at least 99% of the test FS size in the guest's memory 3.179

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

When I umount the USB drive 0.922
Then I find very few patterns in the guest's memory 3.440

Pattern coverage: 0.000% (0 MiB out of 852 MiB reference memory)

# read cache
When I mount the USB drive again 6.791
And I read the content of the test FS 0.393
Then patterns cover at least 99% of the test FS size in the guest's memory 3.600

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

When I umount the USB drive 1.221
Then I find very few patterns in the guest's memory 3.819

Pattern coverage: 0.000% (0 MiB out of 852 MiB reference memory)

After features/support/hooks.rb:320 0.949
After features/support/hooks.rb:100 0.000
54.200
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.286
And I prepare Tails for memory erasure tests 0.444
When I fill a 128 MiB file with a known pattern on the root filesystem 18.581
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.975
Then patterns cover at least 128 MiB in the guest's memory 3.113

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

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 1.766

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

After features/support/hooks.rb:320 3.602
After features/support/hooks.rb:100 0.000
8:16.463
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 7:30.327
And I prepare Tails for memory erasure tests 0.440
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.342
When I trigger shutdown 0.015
And I wait 20 seconds 20.000

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.337

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

After features/support/hooks.rb:320 3.475
After features/support/hooks.rb:100 0.013