Project Number Date
test_Tails_ISO_stable 4661 11 Feb 2024, 15:03

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 14:35.819 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.
18.610
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.073
And I prepare Tails for memory erasure tests 0.573
When I start a process allocating 128 MiB of memory with a known pattern 2.308
Then patterns cover at least 128 MiB in the guest's memory 3.671

Pattern coverage: 100.100% (128 MiB out of 128 MiB reference memory)

When I kill the allocating process 0.244
Then I find very few patterns in the guest's memory 3.739

Pattern coverage: 0.000% (0 MiB out of 1214 MiB reference memory)

After features/support/hooks.rb:291 0.788
After features/support/hooks.rb:75 0.000
1:0.168
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.905
And I prepare Tails for memory erasure tests 0.520
And I find very few patterns in the guest's memory 3.816

Pattern coverage: 0.000% (0 MiB out of 1199 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 40.203
Then patterns cover at least 99% of the test FS size in the guest's memory 3.706

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

When I umount "/mnt" 0.249
Then I find very few patterns in the guest's memory 3.766

Pattern coverage: 0.000% (0 MiB out of 1199 MiB reference memory)

After features/support/hooks.rb:291 0.803
After features/support/hooks.rb:75 0.000
3:39.530
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 9.018
And I prepare Tails for memory erasure tests 0.709
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.833
Then I find very few patterns in the guest's memory 3.709

Pattern coverage: 0.000% (0 MiB out of 1200 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3:3.494
Then patterns cover at least 86% of the test FS size in the guest's memory 2.947

Pattern coverage: 95.243% (118 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.521
Then I find very few patterns in the guest's memory 3.552

Pattern coverage: 0.000% (0 MiB out of 1200 MiB reference memory)

# read cache
When I mount the USB drive again 0.236
And I read the content of the test FS 0.739
Then patterns cover at least 99% of the test FS size in the guest's memory 2.983

Pattern coverage: 102.400% (127 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.238
Then I find very few patterns in the guest's memory 3.545

Pattern coverage: 0.000% (0 MiB out of 1200 MiB reference memory)

After features/support/hooks.rb:291 0.731
After features/support/hooks.rb:75 0.000
2:58.276
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.886
And I prepare Tails for memory erasure tests 0.594
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 26.963
Then I find very few patterns in the guest's memory 3.387

Pattern coverage: 0.000% (0 MiB out of 1211 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:2.543
Then patterns cover at least 99% of the test FS size in the guest's memory 2.905

Pattern coverage: 108.660% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 0.541
Then I find very few patterns in the guest's memory 3.188

Pattern coverage: 0.000% (0 MiB out of 1211 MiB reference memory)

# read cache
When I mount the USB drive again 3.171
And I read the content of the test FS 0.558
Then patterns cover at least 99% of the test FS size in the guest's memory 2.529

Pattern coverage: 108.661% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 0.580
Then I find very few patterns in the guest's memory 3.426

Pattern coverage: 0.000% (0 MiB out of 1211 MiB reference memory)

After features/support/hooks.rb:291 0.797
After features/support/hooks.rb:75 0.000
51.524
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.911
And I prepare Tails for memory erasure tests 0.566
When I fill a 128 MiB file with a known pattern on the root filesystem 15.397
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.869
Then patterns cover at least 128 MiB in the guest's memory 3.278

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

When I trigger shutdown 0.701
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.779

Pattern coverage: 0.000% (0 MiB out of 1209 MiB reference memory)

After features/support/hooks.rb:291 3.466
After features/support/hooks.rb:75 0.000
5:47.710
Before features/support/hooks.rb:245 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:4.893
And I prepare Tails for memory erasure tests 0.470
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.953
When I trigger shutdown 0.244
And I wait 20 seconds 20.014

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.134

Pattern coverage: 0.000% (0 MiB out of 1196 MiB reference memory)

After features/support/hooks.rb:291 3.434
After features/support/hooks.rb:75 0.011