Project Number Date
test_Tails_ISO_devel 3642 09 Jan 2025, 23:00

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 11:21.338 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.
23.668
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.687
And I prepare Tails for memory erasure tests 0.461
When I start a process allocating 128 MiB of memory with a known pattern 2.410
Then patterns cover at least 128 MiB in the guest's memory 3.954

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

When I kill the allocating process 1.241
Then I find very few patterns in the guest's memory after 3 seconds 6.914

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

After features/support/hooks.rb:326 0.875
After features/support/hooks.rb:100 0.000
27.000
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 9.156
And I prepare Tails for memory erasure tests 0.421
And I find very few patterns in the guest's memory 3.712

Pattern coverage: 0.000% (0 MiB out of 917 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.958
Then patterns cover at least 99% of the test FS size in the guest's memory 4.101

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

When I umount "/mnt" 0.783
Then I find very few patterns in the guest's memory after 3 seconds 6.866

Pattern coverage: 0.000% (0 MiB out of 917 MiB reference memory)

After features/support/hooks.rb:326 1.166
After features/support/hooks.rb:100 0.000
49.272
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 9.764
And I prepare Tails for memory erasure tests 0.482
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.197
Then I find very few patterns in the guest's memory 3.033

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

# write cache
When I fill the USB drive with a known pattern 2.616
Then patterns cover at least 75% of the test FS size in the guest's memory 3.279

Pattern coverage: 91.799% (117 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.591
Then I find very few patterns in the guest's memory after 3 seconds 5.749

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

# read cache
When I mount the USB drive again 1.280
And I read the content of the test FS 1.213
Then patterns cover at least 99% of the test FS size in the guest's memory 3.264

Pattern coverage: 100.596% (128 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 6.461

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

After features/support/hooks.rb:326 0.875
After features/support/hooks.rb:100 0.000
1:22.719
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.252
And I prepare Tails for memory erasure tests 0.430
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 36.386
Then I find very few patterns in the guest's memory 3.352

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.985
Then patterns cover at least 99% of the test FS size in the guest's memory 3.462

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

When I umount the USB drive 3.606
Then I find very few patterns in the guest's memory after 3 seconds 7.346

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

# read cache
When I mount the USB drive again 6.045
And I read the content of the test FS 1.215
Then patterns cover at least 99% of the test FS size in the guest's memory 3.536

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

When I umount the USB drive 0.968
Then I find very few patterns in the guest's memory after 3 seconds 6.131

Pattern coverage: 0.000% (0 MiB out of 905 MiB reference memory)

After features/support/hooks.rb:326 1.012
After features/support/hooks.rb:100 0.000
50.665
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.320
And I prepare Tails for memory erasure tests 0.446
When I fill a 128 MiB file with a known pattern on the root filesystem 15.156
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.691
Then patterns cover at least 128 MiB in the guest's memory 3.149

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

When I trigger shutdown 0.019
Then I find very few patterns in the guest's memory after 20 seconds 20.880

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

After features/support/hooks.rb:326 3.535
After features/support/hooks.rb:100 0.000
7:28.011
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 6:42.988
And I prepare Tails for memory erasure tests 0.463
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.280
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.266

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

After features/support/hooks.rb:326 3.542
After features/support/hooks.rb:100 0.029