Project Number Date
test_Tails_ISO_stable 4968 24 Jul 2024, 08:35

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 11:53.537 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.
21.879
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.082
And I prepare Tails for memory erasure tests 0.412
When I start a process allocating 128 MiB of memory with a known pattern 1.368
Then patterns cover at least 128 MiB in the guest's memory 3.373

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

When I kill the allocating process 3.563
Then I find very few patterns in the guest's memory 4.079

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

After features/support/hooks.rb:326 1.281
After features/support/hooks.rb:100 0.000
25.649
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.724
And I prepare Tails for memory erasure tests 0.800
And I find very few patterns in the guest's memory 4.244

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.649
Then patterns cover at least 99% of the test FS size in the guest's memory 4.316

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

When I umount "/mnt" 0.642
Then I find very few patterns in the guest's memory 4.271

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

After features/support/hooks.rb:326 0.827
After features/support/hooks.rb:100 0.000
50.327
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 11.254
And I prepare Tails for memory erasure tests 0.454
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.161
Then I find very few patterns in the guest's memory 4.648

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

# write cache
When I fill the USB drive with a known pattern 2.609
Then patterns cover at least 86% of the test FS size in the guest's memory 4.433

Pattern coverage: 86.634% (110 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.487
Then I find very few patterns in the guest's memory 4.588

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

# read cache
When I mount the USB drive again 0.267
And I read the content of the test FS 1.038
Then patterns cover at least 99% of the test FS size in the guest's memory 4.246

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

When I umount the USB drive 0.630
Then I find very few patterns in the guest's memory 4.504

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

After features/support/hooks.rb:326 1.548
After features/support/hooks.rb:100 0.000
1:11.275
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.193
And I prepare Tails for memory erasure tests 0.512
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.017
Then I find very few patterns in the guest's memory 3.448

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.139
Then patterns cover at least 99% of the test FS size in the guest's memory 2.922

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

When I umount the USB drive 0.982
Then I find very few patterns in the guest's memory 3.309

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

# read cache
When I mount the USB drive again 6.129
And I read the content of the test FS 0.440
Then patterns cover at least 99% of the test FS size in the guest's memory 2.869

Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.705
Then I find very few patterns in the guest's memory 3.604

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

After features/support/hooks.rb:326 0.857
After features/support/hooks.rb:100 0.000
56.088
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.655
And I prepare Tails for memory erasure tests 0.565
When I fill a 128 MiB file with a known pattern on the root filesystem 18.067
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.129
Then patterns cover at least 128 MiB in the guest's memory 3.705

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

When I trigger shutdown 0.013
And I wait 20 seconds 20.011

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.939

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

After features/support/hooks.rb:326 3.702
After features/support/hooks.rb:100 0.000
8:8.317
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 7:22.032
And I prepare Tails for memory erasure tests 0.514
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.323
When I trigger shutdown 0.012
And I wait 20 seconds 20.009

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.425

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

After features/support/hooks.rb:326 3.476
After features/support/hooks.rb:100 0.012