Project Number Date
test_Tails_ISO_devel 3236 14 Jan 2024, 12:34

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 13:55.617 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.
17.974
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.571
And I prepare Tails for memory erasure tests 0.889
When I start a process allocating 128 MiB of memory with a known pattern 1.210
Then patterns cover at least 128 MiB in the guest's memory 3.321

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

When I kill the allocating process 0.287
Then I find very few patterns in the guest's memory 3.693

Pattern coverage: 0.000% (0 MiB out of 1222 MiB reference memory)

After features/support/hooks.rb:291 0.655
After features/support/hooks.rb:75 0.000
1:1.731
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.463
And I prepare Tails for memory erasure tests 0.688
And I find very few patterns in the guest's memory 4.408

Pattern coverage: 0.000% (0 MiB out of 1220 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 39.892
Then patterns cover at least 99% of the test FS size in the guest's memory 3.696

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

When I umount "/mnt" 0.254
Then I find very few patterns in the guest's memory 4.325

Pattern coverage: 0.000% (0 MiB out of 1220 MiB reference memory)

After features/support/hooks.rb:291 1.482
After features/support/hooks.rb:75 0.000
2:54.192
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.369
And I prepare Tails for memory erasure tests 0.525
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.822
Then I find very few patterns in the guest's memory 4.180

Pattern coverage: 0.000% (0 MiB out of 1216 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:16.062
Then patterns cover at least 86% of the test FS size in the guest's memory 3.588

Pattern coverage: 94.130% (117 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.721
Then I find very few patterns in the guest's memory 4.165

Pattern coverage: 0.000% (0 MiB out of 1216 MiB reference memory)

# read cache
When I mount the USB drive again 0.254
And I read the content of the test FS 0.578
Then patterns cover at least 99% of the test FS size in the guest's memory 3.922

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

When I umount the USB drive 0.443
Then I find very few patterns in the guest's memory 4.557

Pattern coverage: 0.000% (0 MiB out of 1216 MiB reference memory)

After features/support/hooks.rb:291 1.394
After features/support/hooks.rb:75 0.000
2:28.884
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.170
And I prepare Tails for memory erasure tests 0.499
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 22.740
Then I find very few patterns in the guest's memory 3.938

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

# write cache
When I fill the USB drive with a known pattern 1:33.207
Then patterns cover at least 99% of the test FS size in the guest's memory 3.406

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

When I umount the USB drive 0.649
Then I find very few patterns in the guest's memory 4.056

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

# read cache
When I mount the USB drive again 3.451
And I read the content of the test FS 0.607
Then patterns cover at least 99% of the test FS size in the guest's memory 3.497

Pattern coverage: 108.663% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 0.475
Then I find very few patterns in the guest's memory 4.183

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

After features/support/hooks.rb:291 1.204
After features/support/hooks.rb:75 0.000
46.169
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.000
And I prepare Tails for memory erasure tests 0.565
When I fill a 128 MiB file with a known pattern on the root filesystem 10.478
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.410
Then patterns cover at least 128 MiB in the guest's memory 3.235

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

When I trigger shutdown 0.580
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.878

Pattern coverage: 0.000% (0 MiB out of 1210 MiB reference memory)

After features/support/hooks.rb:291 3.421
After features/support/hooks.rb:75 0.000
6:26.665
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 5:39.756
And I prepare Tails for memory erasure tests 0.458
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.571
When I trigger shutdown 0.240
And I wait 20 seconds 20.018

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.619

Pattern coverage: 0.000% (0 MiB out of 1184 MiB reference memory)

After features/support/hooks.rb:291 3.493
After features/support/hooks.rb:75 0.015