Project Number Date
test_Tails_ISO_stable 5000 05 Aug 2024, 21:46

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 11:25.986 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.
25.903
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 10.604
And I prepare Tails for memory erasure tests 0.410
When I start a process allocating 128 MiB of memory with a known pattern 1.236
Then patterns cover at least 128 MiB in the guest's memory 3.936

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

When I kill the allocating process 5.137
Then I find very few patterns in the guest's memory 4.577

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

After features/support/hooks.rb:326 1.060
After features/support/hooks.rb:100 0.000
23.799
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.675
And I prepare Tails for memory erasure tests 0.405
And I find very few patterns in the guest's memory 4.350

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.039
Then patterns cover at least 99% of the test FS size in the guest's memory 3.371

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

When I umount "/mnt" 0.750
Then I find very few patterns in the guest's memory 4.207

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

After features/support/hooks.rb:326 0.793
After features/support/hooks.rb:100 0.000
46.466
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.567
And I prepare Tails for memory erasure tests 0.473
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.057
Then I find very few patterns in the guest's memory 4.287

Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.840
Then patterns cover at least 86% of the test FS size in the guest's memory 4.554

Pattern coverage: 91.872% (117 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.610
Then I find very few patterns in the guest's memory 4.518

Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)

# read cache
When I mount the USB drive again 0.305
And I read the content of the test FS 0.537
Then patterns cover at least 99% of the test FS size in the guest's memory 4.377

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

When I umount the USB drive 0.560
Then I find very few patterns in the guest's memory 4.776

Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)

After features/support/hooks.rb:326 0.836
After features/support/hooks.rb:100 0.000
1:13.645
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.295
And I prepare Tails for memory erasure tests 0.390
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.501
Then I find very few patterns in the guest's memory 3.914

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

# write cache
When I fill the USB drive with a known pattern 2.647
Then patterns cover at least 99% of the test FS size in the guest's memory 3.862

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

When I umount the USB drive 1.517
Then I find very few patterns in the guest's memory 5.288

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

# read cache
When I mount the USB drive again 5.834
And I read the content of the test FS 0.448
Then patterns cover at least 99% of the test FS size in the guest's memory 3.325

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

When I umount the USB drive 0.793
Then I find very few patterns in the guest's memory 3.825

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

After features/support/hooks.rb:326 0.941
After features/support/hooks.rb:100 0.000
50.555
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.146
And I prepare Tails for memory erasure tests 0.412
When I fill a 128 MiB file with a known pattern on the root filesystem 15.219
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.101
Then patterns cover at least 128 MiB in the guest's memory 2.883

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

When I trigger shutdown 0.014
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 887 MiB reference memory)

After features/support/hooks.rb:326 3.496
After features/support/hooks.rb:100 0.000
7:45.615
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 7:0.644
And I prepare Tails for memory erasure tests 0.423
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.297
When I trigger shutdown 0.018
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.212

Pattern coverage: 0.000% (0 MiB out of 899 MiB reference memory)

After features/support/hooks.rb:326 3.509
After features/support/hooks.rb:100 0.010