Project Number Date
test_Tails_ISO_stable 4963 23 Jul 2024, 12:49

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 11:34.684 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.
20.058
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.440
And I prepare Tails for memory erasure tests 0.587
When I start a process allocating 128 MiB of memory with a known pattern 2.392
Then patterns cover at least 128 MiB in the guest's memory 3.910

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

When I kill the allocating process 0.979
Then I find very few patterns in the guest's memory 3.747

Pattern coverage: 0.000% (0 MiB out of 883 MiB reference memory)

After features/support/hooks.rb:326 1.161
After features/support/hooks.rb:100 0.000
25.363
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.148
And I prepare Tails for memory erasure tests 0.409
And I find very few patterns in the guest's memory 4.268

Pattern coverage: 0.000% (0 MiB out of 874 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.899
Then patterns cover at least 99% of the test FS size in the guest's memory 4.174

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

When I umount "/mnt" 1.192
Then I find very few patterns in the guest's memory 4.270

Pattern coverage: 0.000% (0 MiB out of 874 MiB reference memory)

After features/support/hooks.rb:326 0.827
After features/support/hooks.rb:100 0.000
51.163
Before features/support/hooks.rb:269 0.004
Given I have started Tails from DVD without network and logged in 8.433
And I prepare Tails for memory erasure tests 0.681
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.319
Then I find very few patterns in the guest's memory 4.453

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

# write cache
When I fill the USB drive with a known pattern 5.464
Then patterns cover at least 86% of the test FS size in the guest's memory 4.364

Pattern coverage: 89.301% (113 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.569
Then I find very few patterns in the guest's memory 4.762

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

# read cache
When I mount the USB drive again 0.732
And I read the content of the test FS 0.764
Then patterns cover at least 99% of the test FS size in the guest's memory 4.108

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

When I umount the USB drive 1.019
Then I find very few patterns in the guest's memory 4.489

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

After features/support/hooks.rb:326 2.100
After features/support/hooks.rb:100 0.000
1:19.068
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.564
And I prepare Tails for memory erasure tests 0.635
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 34.087
Then I find very few patterns in the guest's memory 4.458

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

# write cache
When I fill the USB drive with a known pattern 3.112
Then patterns cover at least 99% of the test FS size in the guest's memory 3.725

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

When I umount the USB drive 1.136
Then I find very few patterns in the guest's memory 3.762

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

# read cache
When I mount the USB drive again 7.106
And I read the content of the test FS 0.925
Then patterns cover at least 99% of the test FS size in the guest's memory 3.553

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

When I umount the USB drive 3.716
Then I find very few patterns in the guest's memory 4.284

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

After features/support/hooks.rb:326 1.472
After features/support/hooks.rb:100 0.000
51.207
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.143
And I prepare Tails for memory erasure tests 0.509
When I fill a 128 MiB file with a known pattern on the root filesystem 13.468
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.225
Then patterns cover at least 128 MiB in the guest's memory 3.910

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

When I trigger shutdown 0.019
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.910

Pattern coverage: 0.000% (0 MiB out of 869 MiB reference memory)

After features/support/hooks.rb:326 3.576
After features/support/hooks.rb:100 0.000
7:47.823
Before features/support/hooks.rb:269 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:3.893
And I prepare Tails for memory erasure tests 0.469
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.283
When I trigger shutdown 0.016
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.139

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

After features/support/hooks.rb:326 3.536
After features/support/hooks.rb:100 0.022