Project Number Date
test_Tails_ISO_stable 5128 30 Sep 2024, 18:45

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 11:3.081 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.
23.267
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.198
And I prepare Tails for memory erasure tests 0.547
When I start a process allocating 128 MiB of memory with a known pattern 2.390
Then patterns cover at least 128 MiB in the guest's memory 4.098

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

When I kill the allocating process 1.824
Then I find very few patterns in the guest's memory after 3 seconds 6.207

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

After features/support/hooks.rb:326 0.701
After features/support/hooks.rb:100 0.000
24.646
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.137
And I prepare Tails for memory erasure tests 0.395
And I find very few patterns in the guest's memory 2.835

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.295
Then patterns cover at least 99% of the test FS size in the guest's memory 3.588

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

When I umount "/mnt" 1.229
Then I find very few patterns in the guest's memory after 3 seconds 6.164

Pattern coverage: 0.000% (0 MiB out of 889 MiB reference memory)

After features/support/hooks.rb:326 1.189
After features/support/hooks.rb:100 0.000
49.278
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.519
And I prepare Tails for memory erasure tests 0.395
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.067
Then I find very few patterns in the guest's memory 3.196

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

# write cache
When I fill the USB drive with a known pattern 2.664
Then patterns cover at least 75% of the test FS size in the guest's memory 4.845

Pattern coverage: 90.345% (115 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.795
Then I find very few patterns in the guest's memory after 3 seconds 6.116

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

# read cache
When I mount the USB drive again 0.252
And I read the content of the test FS 0.678
Then patterns cover at least 99% of the test FS size in the guest's memory 3.585

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

When I umount the USB drive 1.360
Then I find very few patterns in the guest's memory after 3 seconds 5.800

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

After features/support/hooks.rb:326 0.792
After features/support/hooks.rb:100 0.000
1:13.150
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.337
And I prepare Tails for memory erasure tests 0.385
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.523
Then I find very few patterns in the guest's memory 2.636

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.107
Then patterns cover at least 99% of the test FS size in the guest's memory 3.066

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

When I umount the USB drive 0.900
Then I find very few patterns in the guest's memory after 3 seconds 5.647

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

# read cache
When I mount the USB drive again 5.919
And I read the content of the test FS 0.675
Then patterns cover at least 99% of the test FS size in the guest's memory 3.323

Pattern coverage: 106.117% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.841
Then I find very few patterns in the guest's memory after 3 seconds 5.784

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

After features/support/hooks.rb:326 0.830
After features/support/hooks.rb:100 0.000
48.703
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.033
And I prepare Tails for memory erasure tests 0.536
When I fill a 128 MiB file with a known pattern on the root filesystem 14.742
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.895
Then patterns cover at least 128 MiB in the guest's memory 2.702

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

When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 20.779

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

After features/support/hooks.rb:326 3.463
After features/support/hooks.rb:100 0.000
7:24.034
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 6:39.751
And I prepare Tails for memory erasure tests 0.394
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.663
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.212

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

After features/support/hooks.rb:326 3.500
After features/support/hooks.rb:100 0.011