Project Number Date
test_Tails_ISO_stable 4827 05 May 2024, 12:13

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 53 0 0 0 0 53 6 0 6 11:5.913 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.
27.104
Before features/support/hooks.rb:259 0.003
Given I have started Tails from DVD without network and logged in 8.308
And I prepare Tails for memory erasure tests 0.431
When I start a process allocating 128 MiB of memory with a known pattern 1.175
Then patterns cover at least 128 MiB in the guest's memory 3.727

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

When I kill the allocating process 8.413
Then I find very few patterns in the guest's memory 5.047

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

After features/support/hooks.rb:305 1.059
After features/support/hooks.rb:89 0.000
23.547
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 8.470
And I prepare Tails for memory erasure tests 0.458
And I find very few patterns in the guest's memory 4.482

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.873
Then patterns cover at least 99% of the test FS size in the guest's memory 3.607

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

When I umount "/mnt" 0.475
Then I find very few patterns in the guest's memory 4.180

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

After features/support/hooks.rb:305 0.845
After features/support/hooks.rb:89 0.000
46.645
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 10.391
And I prepare Tails for memory erasure tests 0.491
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.116
Then I find very few patterns in the guest's memory 4.292

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.378
Then patterns cover at least 86% of the test FS size in the guest's memory 3.708

Pattern coverage: 90.081% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.208
Then I find very few patterns in the guest's memory 4.450

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

# read cache
When I mount the USB drive again 0.284
And I read the content of the test FS 0.977
Then patterns cover at least 99% of the test FS size in the guest's memory 3.972

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

When I umount the USB drive 0.468
Then I find very few patterns in the guest's memory 3.903

Pattern coverage: 0.000% (0 MiB out of 873 MiB reference memory)

After features/support/hooks.rb:305 0.806
After features/support/hooks.rb:89 0.000
1:17.095
Before features/support/hooks.rb:259 0.002
Given I have started Tails from DVD without network and logged in 9.011
And I prepare Tails for memory erasure tests 0.481
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.937
Then I find very few patterns in the guest's memory 3.784

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

# write cache
When I fill the USB drive with a known pattern 1.838
Then patterns cover at least 99% of the test FS size in the guest's memory 3.376

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

When I umount the USB drive 5.202
Then I find very few patterns in the guest's memory 3.694

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

# read cache
When I mount the USB drive again 7.884
And I read the content of the test FS 0.415
Then patterns cover at least 99% of the test FS size in the guest's memory 3.124

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

When I umount the USB drive 0.633
Then I find very few patterns in the guest's memory 3.710

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

After features/support/hooks.rb:305 0.802
After features/support/hooks.rb:89 0.000
56.074
Before features/support/hooks.rb:259 0.003
Given I have started Tails from DVD without network and logged in 10.159
And I prepare Tails for memory erasure tests 0.491
When I fill a 128 MiB file with a known pattern on the root filesystem 18.836
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.788
Then patterns cover at least 128 MiB in the guest's memory 2.986

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

When I trigger shutdown 0.020
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.770

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

After features/support/hooks.rb:305 3.562
After features/support/hooks.rb:89 0.000
7:15.446
Before features/support/hooks.rb:259 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:28.327
And I prepare Tails for memory erasure tests 0.389
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.472
When I trigger shutdown 0.015
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.221

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

After features/support/hooks.rb:305 3.508
After features/support/hooks.rb:89 0.013