Project Number Date
test_Tails_ISO_stable 5156 08 Oct 2024, 08:59

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 51 0 0 0 0 51 6 0 6 11:38.199 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.
24.708
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.113
And I prepare Tails for memory erasure tests 0.436
When I start a process allocating 128 MiB of memory with a known pattern 2.486
Then patterns cover at least 128 MiB in the guest's memory 5.485

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

When I kill the allocating process 1.399
Then I find very few patterns in the guest's memory after 3 seconds 6.788

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

After features/support/hooks.rb:326 2.696
After features/support/hooks.rb:100 0.000
26.734
Before features/support/hooks.rb:269 0.004
Given I have started Tails from DVD without network and logged in 8.369
And I prepare Tails for memory erasure tests 0.436
And I find very few patterns in the guest's memory 3.792

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 3.071
Then patterns cover at least 99% of the test FS size in the guest's memory 4.152

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

When I umount "/mnt" 0.593
Then I find very few patterns in the guest's memory after 3 seconds 6.318

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

After features/support/hooks.rb:326 1.777
After features/support/hooks.rb:100 0.000
48.635
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.718
And I prepare Tails for memory erasure tests 0.397
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.159
Then I find very few patterns in the guest's memory 3.126

Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.520
Then patterns cover at least 75% of the test FS size in the guest's memory 3.447

Pattern coverage: 87.054% (111 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.498
Then I find very few patterns in the guest's memory after 3 seconds 5.936

Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)

# read cache
When I mount the USB drive again 0.633
And I read the content of the test FS 1.098
Then patterns cover at least 99% of the test FS size in the guest's memory 3.685

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

When I umount the USB drive 0.770
Then I find very few patterns in the guest's memory after 3 seconds 6.639

Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)

After features/support/hooks.rb:326 1.189
After features/support/hooks.rb:100 0.000
1:23.599
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.365
And I prepare Tails for memory erasure tests 0.418
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 38.371
Then I find very few patterns in the guest's memory 2.588

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.440
Then patterns cover at least 99% of the test FS size in the guest's memory 3.329

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

When I umount the USB drive 2.170
Then I find very few patterns in the guest's memory after 3 seconds 8.011

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

# read cache
When I mount the USB drive again 5.523
And I read the content of the test FS 0.657
Then patterns cover at least 99% of the test FS size in the guest's memory 4.319

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

When I umount the USB drive 1.146
Then I find very few patterns in the guest's memory after 3 seconds 6.255

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

After features/support/hooks.rb:326 0.889
After features/support/hooks.rb:100 0.000
50.109
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.847
And I prepare Tails for memory erasure tests 0.441
When I fill a 128 MiB file with a known pattern on the root filesystem 14.859
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.807
Then patterns cover at least 128 MiB in the guest's memory 3.210

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

When I trigger shutdown 0.022
Then I find very few patterns in the guest's memory after 20 seconds 20.920

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

After features/support/hooks.rb:326 3.488
After features/support/hooks.rb:100 0.000
7:44.411
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 6:59.017
And I prepare Tails for memory erasure tests 0.448
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.691
When I trigger shutdown 0.015
Then I find very few patterns in the guest's memory after 20 seconds 21.239

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

After features/support/hooks.rb:326 3.504
After features/support/hooks.rb:100 0.011