Project Number Date
test_Tails_ISO_stable 5409 21 Jan 2025, 18:24

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 11:35.471 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.
24.689
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.805
And I prepare Tails for memory erasure tests 0.550
When I start a process allocating 128 MiB of memory with a known pattern 2.384
Then patterns cover at least 128 MiB in the guest's memory 3.613

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

When I kill the allocating process 1.460
Then I find very few patterns in the guest's memory after 5 seconds 7.875

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

After features/support/hooks.rb:326 0.977
After features/support/hooks.rb:100 0.000
27.089
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.587
And I prepare Tails for memory erasure tests 0.660
And I find very few patterns in the guest's memory 3.066

Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.024
Then patterns cover at least 99% of the test FS size in the guest's memory 4.072

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

When I umount "/mnt" 0.929
Then I find very few patterns in the guest's memory after 3 seconds 6.747

Pattern coverage: 0.000% (0 MiB out of 881 MiB reference memory)

After features/support/hooks.rb:326 0.741
After features/support/hooks.rb:100 0.000
49.158
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.203
And I prepare Tails for memory erasure tests 0.432
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.103
Then I find very few patterns in the guest's memory 3.417

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

# write cache
When I fill the USB drive with a known pattern 3.480
Then patterns cover at least 75% of the test FS size in the guest's memory 3.025

Pattern coverage: 85.649% (109 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.335
Then I find very few patterns in the guest's memory after 3 seconds 6.028

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

# read cache
When I mount the USB drive again 0.214
And I read the content of the test FS 0.478
Then patterns cover at least 99% of the test FS size in the guest's memory 4.040

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

When I umount the USB drive 0.594
Then I find very few patterns in the guest's memory after 3 seconds 7.801

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

After features/support/hooks.rb:326 0.795
After features/support/hooks.rb:100 0.000
1:24.433
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.329
And I prepare Tails for memory erasure tests 0.527
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 39.407
Then I find very few patterns in the guest's memory 3.109

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

# write cache
When I fill the USB drive with a known pattern 1.944
Then patterns cover at least 99% of the test FS size in the guest's memory 3.992

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

When I umount the USB drive 1.546
Then I find very few patterns in the guest's memory after 3 seconds 7.578

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

# read cache
When I mount the USB drive again 5.787
And I read the content of the test FS 0.779
Then patterns cover at least 99% of the test FS size in the guest's memory 4.330

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

When I umount the USB drive 0.832
Then I find very few patterns in the guest's memory after 3 seconds 6.268

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

After features/support/hooks.rb:326 1.587
After features/support/hooks.rb:100 0.001
53.462
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.137
And I prepare Tails for memory erasure tests 0.434
When I fill a 128 MiB file with a known pattern on the root filesystem 16.309
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.434
Then patterns cover at least 128 MiB in the guest's memory 3.641

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

When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.492

Pattern coverage: 0.000% (0 MiB out of 895 MiB reference memory)

After features/support/hooks.rb:326 3.718
After features/support/hooks.rb:100 0.000
7:36.639
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 6:53.275
And I prepare Tails for memory erasure tests 0.623
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.489
When I trigger shutdown 0.013
Then I find very few patterns in the guest's memory after 20 seconds 21.237

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

After features/support/hooks.rb:326 3.508
After features/support/hooks.rb:100 0.013