Project Number Date
test_Tails_ISO_stable 4633 24 Jan 2024, 16:22

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 14:22.116 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.
17.959
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 7.974
And I prepare Tails for memory erasure tests 0.459
When I start a process allocating 128 MiB of memory with a known pattern 2.299
Then patterns cover at least 128 MiB in the guest's memory 3.323

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

When I kill the allocating process 0.279
Then I find very few patterns in the guest's memory 3.623

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

After features/support/hooks.rb:291 1.027
After features/support/hooks.rb:75 0.000
1:1.104
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.203
And I prepare Tails for memory erasure tests 0.540
And I find very few patterns in the guest's memory 3.752

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 37.994
Then patterns cover at least 99% of the test FS size in the guest's memory 5.179

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

When I umount "/mnt" 0.332
Then I find very few patterns in the guest's memory 5.103

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

After features/support/hooks.rb:291 0.847
After features/support/hooks.rb:75 0.000
3:13.259
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 0.559
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.216
Then I find very few patterns in the guest's memory 4.654

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

# write cache
When I fill the USB drive with a known pattern 2:30.966
Then patterns cover at least 86% of the test FS size in the guest's memory 3.291

Pattern coverage: 97.077% (120 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.537
Then I find very few patterns in the guest's memory 3.615

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

# read cache
When I mount the USB drive again 0.230
And I read the content of the test FS 1.178
Then patterns cover at least 99% of the test FS size in the guest's memory 6.630

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

When I umount the USB drive 0.581
Then I find very few patterns in the guest's memory 3.559

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

After features/support/hooks.rb:291 0.982
After features/support/hooks.rb:75 0.000
2:55.678
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 7.667
And I prepare Tails for memory erasure tests 0.475
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 23.111
Then I find very few patterns in the guest's memory 4.032

Pattern coverage: 0.000% (0 MiB out of 1201 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:1.534
Then patterns cover at least 99% of the test FS size in the guest's memory 3.022

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

When I umount the USB drive 0.827
Then I find very few patterns in the guest's memory 3.408

Pattern coverage: 0.000% (0 MiB out of 1201 MiB reference memory)

# read cache
When I mount the USB drive again 4.281
And I read the content of the test FS 0.504
Then patterns cover at least 99% of the test FS size in the guest's memory 2.507

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

When I umount the USB drive 0.566
Then I find very few patterns in the guest's memory 3.736

Pattern coverage: 0.000% (0 MiB out of 1201 MiB reference memory)

After features/support/hooks.rb:291 0.925
After features/support/hooks.rb:75 0.000
47.276
Before features/support/hooks.rb:245 0.004
Given I have started Tails from DVD without network and logged in 8.258
And I prepare Tails for memory erasure tests 0.541
When I fill a 128 MiB file with a known pattern on the root filesystem 11.269
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.618
Then patterns cover at least 128 MiB in the guest's memory 2.557

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

When I trigger shutdown 1.199
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.811

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

After features/support/hooks.rb:291 3.495
After features/support/hooks.rb:75 0.000
6:6.836
Before features/support/hooks.rb:245 0.004
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 5:20.794
And I prepare Tails for memory erasure tests 0.477
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.045
When I trigger shutdown 0.317
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.180

Pattern coverage: 0.000% (0 MiB out of 1186 MiB reference memory)

After features/support/hooks.rb:291 3.469
After features/support/hooks.rb:75 0.012