Project Number Date
test_Tails_ISO_stable 4588 24 Dec 2023, 12:04

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 14:6.751 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.
17.382
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.977
And I prepare Tails for memory erasure tests 0.488
When I start a process allocating 128 MiB of memory with a known pattern 1.353
Then patterns cover at least 128 MiB in the guest's memory 3.328

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

When I kill the allocating process 0.372
Then I find very few patterns in the guest's memory 3.860

Pattern coverage: 0.000% (0 MiB out of 1243 MiB reference memory)

After features/support/hooks.rb:291 0.686
After features/support/hooks.rb:75 0.000
57.298
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.237
And I prepare Tails for memory erasure tests 0.466
And I find very few patterns in the guest's memory 3.610

Pattern coverage: 0.000% (0 MiB out of 1254 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 37.228
Then patterns cover at least 99% of the test FS size in the guest's memory 3.073

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

When I umount "/mnt" 0.269
Then I find very few patterns in the guest's memory 4.413

Pattern coverage: 0.000% (0 MiB out of 1254 MiB reference memory)

After features/support/hooks.rb:291 1.237
After features/support/hooks.rb:75 0.000
3:40.490
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.750
And I prepare Tails for memory erasure tests 0.450
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.860
Then I find very few patterns in the guest's memory 3.561

Pattern coverage: 0.000% (0 MiB out of 1243 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 3:5.394
Then patterns cover at least 86% of the test FS size in the guest's memory 3.177

Pattern coverage: 96.836% (120 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.627
Then I find very few patterns in the guest's memory 3.617

Pattern coverage: 0.000% (0 MiB out of 1243 MiB reference memory)

# read cache
When I mount the USB drive again 0.630
And I read the content of the test FS 0.731
Then patterns cover at least 99% of the test FS size in the guest's memory 2.921

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

When I umount the USB drive 0.229
Then I find very few patterns in the guest's memory 3.536

Pattern coverage: 0.000% (0 MiB out of 1243 MiB reference memory)

After features/support/hooks.rb:291 0.717
After features/support/hooks.rb:75 0.000
2:28.142
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.228
And I prepare Tails for memory erasure tests 0.503
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 24.218
Then I find very few patterns in the guest's memory 3.473

Pattern coverage: 0.000% (0 MiB out of 1241 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1:35.725
Then patterns cover at least 99% of the test FS size in the guest's memory 2.663

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

When I umount the USB drive 0.587
Then I find very few patterns in the guest's memory 3.253

Pattern coverage: 0.000% (0 MiB out of 1241 MiB reference memory)

# read cache
When I mount the USB drive again 2.962
And I read the content of the test FS 0.385
Then patterns cover at least 99% of the test FS size in the guest's memory 2.297

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

When I umount the USB drive 0.572
Then I find very few patterns in the guest's memory 3.271

Pattern coverage: 0.000% (0 MiB out of 1241 MiB reference memory)

After features/support/hooks.rb:291 0.770
After features/support/hooks.rb:75 0.000
47.728
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.943
And I prepare Tails for memory erasure tests 0.383
When I fill a 128 MiB file with a known pattern on the root filesystem 12.176
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.365
Then patterns cover at least 128 MiB in the guest's memory 2.478

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

When I trigger shutdown 1.572
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.786

Pattern coverage: 0.000% (0 MiB out of 1245 MiB reference memory)

After features/support/hooks.rb:291 3.527
After features/support/hooks.rb:75 0.000
5:55.709
Before features/support/hooks.rb:245 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:9.989
And I prepare Tails for memory erasure tests 0.425
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.761
When I trigger shutdown 0.360
And I wait 20 seconds 20.015

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.157

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

After features/support/hooks.rb:291 3.479
After features/support/hooks.rb:75 0.011