Project Number Date
test_Tails_ISO_stable 4604 07 Jan 2024, 12:32

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 13:54.476 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.
18.077
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.200
And I prepare Tails for memory erasure tests 0.520
When I start a process allocating 128 MiB of memory with a known pattern 1.258
Then patterns cover at least 128 MiB in the guest's memory 3.434

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

When I kill the allocating process 0.268
Then I find very few patterns in the guest's memory 4.394

Pattern coverage: 0.000% (0 MiB out of 1206 MiB reference memory)

After features/support/hooks.rb:291 0.894
After features/support/hooks.rb:75 0.000
59.186
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 7.859
And I prepare Tails for memory erasure tests 0.498
And I find very few patterns in the guest's memory 4.307

Pattern coverage: 0.000% (0 MiB out of 1215 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 39.359
Then patterns cover at least 99% of the test FS size in the guest's memory 3.261

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

When I umount "/mnt" 0.178
Then I find very few patterns in the guest's memory 3.721

Pattern coverage: 0.000% (0 MiB out of 1215 MiB reference memory)

After features/support/hooks.rb:291 1.173
After features/support/hooks.rb:75 0.000
2:59.027
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.835
And I prepare Tails for memory erasure tests 0.499
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.811
Then I find very few patterns in the guest's memory 3.567

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

# write cache
When I fill the USB drive with a known pattern 2:24.436
Then patterns cover at least 86% of the test FS size in the guest's memory 3.445

Pattern coverage: 97.735% (121 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.422
Then I find very few patterns in the guest's memory 3.531

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

# read cache
When I mount the USB drive again 0.215
And I read the content of the test FS 0.617
Then patterns cover at least 99% of the test FS size in the guest's memory 2.917

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

When I umount the USB drive 0.284
Then I find very few patterns in the guest's memory 4.441

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

After features/support/hooks.rb:291 1.030
After features/support/hooks.rb:75 0.000
2:31.582
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.917
And I prepare Tails for memory erasure tests 0.661
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 22.689
Then I find very few patterns in the guest's memory 4.249

Pattern coverage: 0.000% (0 MiB out of 1227 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1:36.384
Then patterns cover at least 99% of the test FS size in the guest's memory 2.888

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

When I umount the USB drive 1.039
Then I find very few patterns in the guest's memory 3.311

Pattern coverage: 0.000% (0 MiB out of 1227 MiB reference memory)

# read cache
When I mount the USB drive again 3.356
And I read the content of the test FS 0.423
Then patterns cover at least 99% of the test FS size in the guest's memory 2.823

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

When I umount the USB drive 1.186
Then I find very few patterns in the guest's memory 3.649

Pattern coverage: 0.000% (0 MiB out of 1227 MiB reference memory)

After features/support/hooks.rb:291 0.925
After features/support/hooks.rb:75 0.001
48.399
Before features/support/hooks.rb:245 0.008
Given I have started Tails from DVD without network and logged in 9.059
And I prepare Tails for memory erasure tests 0.676
When I fill a 128 MiB file with a known pattern on the root filesystem 11.244
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.591
Then patterns cover at least 128 MiB in the guest's memory 3.167

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

When I trigger shutdown 0.597
And I wait 20 seconds 20.002

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.060

Pattern coverage: 0.000% (0 MiB out of 1224 MiB reference memory)

After features/support/hooks.rb:291 3.700
After features/support/hooks.rb:75 0.000
6:18.204
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 5:32.215
And I prepare Tails for memory erasure tests 0.500
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.863
When I trigger shutdown 0.289
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.314

Pattern coverage: 0.000% (0 MiB out of 1191 MiB reference memory)

After features/support/hooks.rb:291 3.492
After features/support/hooks.rb:75 0.018