Project Number Date
test_Tails_ISO_stable 5227 28 Oct 2024, 16:37

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 11:1.190 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.
21.865
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.083
And I prepare Tails for memory erasure tests 0.425
When I start a process allocating 128 MiB of memory with a known pattern 2.379
Then patterns cover at least 128 MiB in the guest's memory 3.611

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

When I kill the allocating process 1.354
Then I find very few patterns in the guest's memory after 3 seconds 6.012

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

After features/support/hooks.rb:326 1.137
After features/support/hooks.rb:100 0.000
29.893
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.389
And I prepare Tails for memory erasure tests 0.384
And I find very few patterns in the guest's memory 3.081

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 7.738
Then patterns cover at least 99% of the test FS size in the guest's memory 3.524

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

When I umount "/mnt" 0.777
Then I find very few patterns in the guest's memory after 3 seconds 5.996

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

After features/support/hooks.rb:326 1.468
After features/support/hooks.rb:100 0.000
46.956
Before features/support/hooks.rb:269 0.004
Given I have started Tails from DVD without network and logged in 7.999
And I prepare Tails for memory erasure tests 0.386
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.161
Then I find very few patterns in the guest's memory 2.844

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

# write cache
When I fill the USB drive with a known pattern 2.446
Then patterns cover at least 75% of the test FS size in the guest's memory 3.590

Pattern coverage: 88.300% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 2.389
Then I find very few patterns in the guest's memory after 3 seconds 5.954

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

# read cache
When I mount the USB drive again 0.242
And I read the content of the test FS 0.701
Then patterns cover at least 99% of the test FS size in the guest's memory 3.402

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

When I umount the USB drive 1.726
Then I find very few patterns in the guest's memory after 3 seconds 6.110

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

After features/support/hooks.rb:326 1.547
After features/support/hooks.rb:100 0.000
1:15.083
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 7.825
And I prepare Tails for memory erasure tests 0.408
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.146
Then I find very few patterns in the guest's memory 3.317

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

# write cache
When I fill the USB drive with a known pattern 1.925
Then patterns cover at least 99% of the test FS size in the guest's memory 3.538

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

When I umount the USB drive 0.850
Then I find very few patterns in the guest's memory after 3 seconds 5.890

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

# read cache
When I mount the USB drive again 5.881
And I read the content of the test FS 0.865
Then patterns cover at least 99% of the test FS size in the guest's memory 3.466

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

When I umount the USB drive 0.980
Then I find very few patterns in the guest's memory after 3 seconds 6.987

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

After features/support/hooks.rb:326 0.826
After features/support/hooks.rb:100 0.000
51.320
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.585
And I prepare Tails for memory erasure tests 0.395
When I fill a 128 MiB file with a known pattern on the root filesystem 17.282
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.822
Then patterns cover at least 128 MiB in the guest's memory 2.525

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 20.695

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

After features/support/hooks.rb:326 3.504
After features/support/hooks.rb:100 0.000
7:16.070
Before features/support/hooks.rb:269 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:31.396
And I prepare Tails for memory erasure tests 0.798
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.726
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.136

Pattern coverage: 0.000% (0 MiB out of 901 MiB reference memory)

After features/support/hooks.rb:326 3.496
After features/support/hooks.rb:100 0.011