Project Number Date
test_Tails_ISO_20898-tinyrpc-drop 8 19 Apr 2025, 21:17

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 11:38.807 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.
24.030
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.131
And I prepare Tails for memory erasure tests 0.460
When I start a process allocating 128 MiB of memory with a known pattern 2.443
Then patterns cover at least 128 MiB in the guest's memory 3.266

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

When I kill the allocating process 1.123
Then I find very few patterns in the guest's memory after 5 seconds 8.606

Pattern coverage: 0.000% (0 MiB out of 898 MiB reference memory)

After features/support/hooks.rb:330 1.030
After features/support/hooks.rb:100 0.000
26.770
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 9.255
And I prepare Tails for memory erasure tests 0.539
And I find very few patterns in the guest's memory 3.801

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.779
Then patterns cover at least 99% of the test FS size in the guest's memory 4.302

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

When I umount "/mnt" 0.555
Then I find very few patterns in the guest's memory after 3 seconds 6.537

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

After features/support/hooks.rb:330 0.896
After features/support/hooks.rb:100 0.000
49.473
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 9.819
And I prepare Tails for memory erasure tests 0.542
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.939
Then I find very few patterns in the guest's memory 3.315

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.390
Then patterns cover at least 75% of the test FS size in the guest's memory 4.056

Pattern coverage: 87.008% (111 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.897
Then I find very few patterns in the guest's memory after 3 seconds 5.957

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

# read cache
When I mount the USB drive again 0.301
And I read the content of the test FS 0.637
Then patterns cover at least 99% of the test FS size in the guest's memory 3.644

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

When I umount the USB drive 0.916
Then I find very few patterns in the guest's memory after 3 seconds 7.054

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

After features/support/hooks.rb:330 0.954
After features/support/hooks.rb:100 0.000
1:19.575
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.102
And I prepare Tails for memory erasure tests 0.535
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 38.657
Then I find very few patterns in the guest's memory 3.137

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.867
Then patterns cover at least 99% of the test FS size in the guest's memory 3.479

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

When I umount the USB drive 0.687
Then I find very few patterns in the guest's memory after 3 seconds 5.929

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

# read cache
When I mount the USB drive again 4.593
And I read the content of the test FS 0.578
Then patterns cover at least 99% of the test FS size in the guest's memory 3.711

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

When I umount the USB drive 0.530
Then I find very few patterns in the guest's memory after 3 seconds 7.763

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

After features/support/hooks.rb:330 1.895
After features/support/hooks.rb:100 0.000
1:0.874
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 10.006
And I prepare Tails for memory erasure tests 0.417
When I fill a 128 MiB file with a known pattern on the root filesystem 19.109
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 8.097
Then patterns cover at least 128 MiB in the guest's memory 2.471

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

When I trigger shutdown 0.016
Then I find very few patterns in the guest's memory after 20 seconds 20.753

Pattern coverage: 0.000% (0 MiB out of 902 MiB reference memory)

After features/support/hooks.rb:330 3.547
After features/support/hooks.rb:100 0.000
7:38.084
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:54.328
And I prepare Tails for memory erasure tests 0.552
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.743
When I trigger shutdown 0.017
Then I find very few patterns in the guest's memory after 20 seconds 21.442

Pattern coverage: 0.000% (0 MiB out of 896 MiB reference memory)

After features/support/hooks.rb:330 3.530
After features/support/hooks.rb:100 0.012