Project Number Date
test_Tails_ISO_stable 4976 27 Jul 2024, 18:03

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 11:53.726 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.
22.390
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.459
And I prepare Tails for memory erasure tests 0.473
When I start a process allocating 128 MiB of memory with a known pattern 2.400
Then patterns cover at least 128 MiB in the guest's memory 4.966

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

When I kill the allocating process 1.400
Then I find very few patterns in the guest's memory 4.689

Pattern coverage: 0.000% (0 MiB out of 861 MiB reference memory)

After features/support/hooks.rb:326 1.065
After features/support/hooks.rb:100 0.000
26.485
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.500
And I prepare Tails for memory erasure tests 0.469
And I find very few patterns in the guest's memory 4.791

Pattern coverage: 0.000% (0 MiB out of 866 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.791
Then patterns cover at least 99% of the test FS size in the guest's memory 5.248

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

When I umount "/mnt" 0.845
Then I find very few patterns in the guest's memory 4.838

Pattern coverage: 0.000% (0 MiB out of 866 MiB reference memory)

After features/support/hooks.rb:326 1.732
After features/support/hooks.rb:100 0.000
53.524
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.652
And I prepare Tails for memory erasure tests 0.496
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.448
Then I find very few patterns in the guest's memory 5.042

Pattern coverage: 0.000% (0 MiB out of 864 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3.198
Then patterns cover at least 86% of the test FS size in the guest's memory 4.482

Pattern coverage: 87.660% (111 MiB out of 127 MiB reference memory)

When I umount the USB drive 5.950
Then I find very few patterns in the guest's memory 4.366

Pattern coverage: 0.000% (0 MiB out of 864 MiB reference memory)

# read cache
When I mount the USB drive again 0.453
And I read the content of the test FS 0.997
Then patterns cover at least 99% of the test FS size in the guest's memory 3.316

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

When I umount the USB drive 2.024
Then I find very few patterns in the guest's memory 4.095

Pattern coverage: 0.000% (0 MiB out of 864 MiB reference memory)

After features/support/hooks.rb:326 1.072
After features/support/hooks.rb:100 0.000
1:23.267
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.421
And I prepare Tails for memory erasure tests 0.448
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 38.474
Then I find very few patterns in the guest's memory 5.470

Pattern coverage: 0.000% (0 MiB out of 864 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.548
Then patterns cover at least 99% of the test FS size in the guest's memory 3.477

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

When I umount the USB drive 1.508
Then I find very few patterns in the guest's memory 3.823

Pattern coverage: 0.000% (0 MiB out of 864 MiB reference memory)

# read cache
When I mount the USB drive again 6.106
And I read the content of the test FS 0.638
Then patterns cover at least 99% of the test FS size in the guest's memory 5.164

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

When I umount the USB drive 0.726
Then I find very few patterns in the guest's memory 6.457

Pattern coverage: 0.000% (0 MiB out of 864 MiB reference memory)

After features/support/hooks.rb:326 0.906
After features/support/hooks.rb:100 0.000
50.497
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.513
And I prepare Tails for memory erasure tests 0.466
When I fill a 128 MiB file with a known pattern on the root filesystem 14.354
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.871
Then patterns cover at least 128 MiB in the guest's memory 3.369

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

When I trigger shutdown 0.015
And I wait 20 seconds 20.002

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.902

Pattern coverage: 0.000% (0 MiB out of 867 MiB reference memory)

After features/support/hooks.rb:326 3.614
After features/support/hooks.rb:100 0.000
7:57.561
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 7:12.651
And I prepare Tails for memory erasure tests 0.511
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.219
When I trigger shutdown 0.013
And I wait 20 seconds 20.016

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.149

Pattern coverage: 0.000% (0 MiB out of 886 MiB reference memory)

After features/support/hooks.rb:326 3.552
After features/support/hooks.rb:100 0.017