Project Number Date
test_Tails_ISO_devel 3256 28 Jan 2024, 12:31

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 14:11.243 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.
20.326
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.725
And I prepare Tails for memory erasure tests 0.658
When I start a process allocating 128 MiB of memory with a known pattern 2.245
Then patterns cover at least 128 MiB in the guest's memory 4.570

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

When I kill the allocating process 0.274
Then I find very few patterns in the guest's memory 3.851

Pattern coverage: 0.000% (0 MiB out of 1165 MiB reference memory)

After features/support/hooks.rb:291 0.773
After features/support/hooks.rb:75 0.000
59.130
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.636
And I prepare Tails for memory erasure tests 0.714
And I find very few patterns in the guest's memory 3.760

Pattern coverage: 0.000% (0 MiB out of 1190 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 39.069
Then patterns cover at least 99% of the test FS size in the guest's memory 3.142

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

When I umount "/mnt" 0.231
Then I find very few patterns in the guest's memory 3.573

Pattern coverage: 0.000% (0 MiB out of 1190 MiB reference memory)

After features/support/hooks.rb:291 0.743
After features/support/hooks.rb:75 0.000
3:8.222
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.334
And I prepare Tails for memory erasure tests 0.688
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.865
Then I find very few patterns in the guest's memory 4.013

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

# write cache
When I fill the USB drive with a known pattern 2:32.899
Then patterns cover at least 86% of the test FS size in the guest's memory 3.051

Pattern coverage: 93.742% (116 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.681
Then I find very few patterns in the guest's memory 3.500

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

# read cache
When I mount the USB drive again 0.252
And I read the content of the test FS 0.555
Then patterns cover at least 99% of the test FS size in the guest's memory 3.129

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

When I umount the USB drive 0.379
Then I find very few patterns in the guest's memory 3.871

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

After features/support/hooks.rb:291 1.385
After features/support/hooks.rb:75 0.000
2:50.893
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.494
And I prepare Tails for memory erasure tests 0.679
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.421
Then I find very few patterns in the guest's memory 4.197

Pattern coverage: 0.000% (0 MiB out of 1203 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1:50.820
Then patterns cover at least 99% of the test FS size in the guest's memory 2.677

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

When I umount the USB drive 0.719
Then I find very few patterns in the guest's memory 3.237

Pattern coverage: 0.000% (0 MiB out of 1203 MiB reference memory)

# read cache
When I mount the USB drive again 4.407
And I read the content of the test FS 0.741
Then patterns cover at least 99% of the test FS size in the guest's memory 2.527

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

When I umount the USB drive 0.623
Then I find very few patterns in the guest's memory 3.344

Pattern coverage: 0.000% (0 MiB out of 1203 MiB reference memory)

After features/support/hooks.rb:291 0.780
After features/support/hooks.rb:75 0.000
49.131
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.198
And I prepare Tails for memory erasure tests 0.726
When I fill a 128 MiB file with a known pattern on the root filesystem 11.707
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.846
Then patterns cover at least 128 MiB in the guest's memory 2.447

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

When I trigger shutdown 2.432
And I wait 20 seconds 20.015

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.756

Pattern coverage: 0.000% (0 MiB out of 1207 MiB reference memory)

After features/support/hooks.rb:291 3.475
After features/support/hooks.rb:75 0.000
6:3.538
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 5:19.354
And I prepare Tails for memory erasure tests 0.507
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.183
When I trigger shutdown 0.324
And I wait 20 seconds 20.011

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 1178 MiB reference memory)

After features/support/hooks.rb:291 3.485
After features/support/hooks.rb:75 0.014