Project Number Date
test_Tails_ISO_devel 3218 31 Dec 2023, 12:12

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 13:50.057 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.
19.179
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.341
And I prepare Tails for memory erasure tests 0.676
When I start a process allocating 128 MiB of memory with a known pattern 1.321
Then patterns cover at least 128 MiB in the guest's memory 3.584

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

When I kill the allocating process 0.304
Then I find very few patterns in the guest's memory 4.951

Pattern coverage: 0.000% (0 MiB out of 1200 MiB reference memory)

After features/support/hooks.rb:291 0.880
After features/support/hooks.rb:75 0.000
1:0.149
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 9.611
And I prepare Tails for memory erasure tests 0.580
And I find very few patterns in the guest's memory 3.702

Pattern coverage: 0.000% (0 MiB out of 1195 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 38.870
Then patterns cover at least 99% of the test FS size in the guest's memory 3.332

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

When I umount "/mnt" 0.285
Then I find very few patterns in the guest's memory 3.767

Pattern coverage: 0.000% (0 MiB out of 1195 MiB reference memory)

After features/support/hooks.rb:291 0.834
After features/support/hooks.rb:75 0.000
2:59.481
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.066
And I prepare Tails for memory erasure tests 0.435
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.941
Then I find very few patterns in the guest's memory 3.867

Pattern coverage: 0.000% (0 MiB out of 1211 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:20.347
Then patterns cover at least 86% of the test FS size in the guest's memory 4.471

Pattern coverage: 97.340% (121 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.426
Then I find very few patterns in the guest's memory 4.321

Pattern coverage: 0.000% (0 MiB out of 1211 MiB reference memory)

# read cache
When I mount the USB drive again 0.217
And I read the content of the test FS 0.549
Then patterns cover at least 99% of the test FS size in the guest's memory 4.309

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

When I umount the USB drive 0.270
Then I find very few patterns in the guest's memory 4.256

Pattern coverage: 0.000% (0 MiB out of 1211 MiB reference memory)

After features/support/hooks.rb:291 0.942
After features/support/hooks.rb:75 0.000
2:38.560
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 9.299
And I prepare Tails for memory erasure tests 0.467
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.954
Then I find very few patterns in the guest's memory 5.450

Pattern coverage: 0.000% (0 MiB out of 1194 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1:34.582
Then patterns cover at least 99% of the test FS size in the guest's memory 3.201

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

When I umount the USB drive 0.626
Then I find very few patterns in the guest's memory 3.497

Pattern coverage: 0.000% (0 MiB out of 1194 MiB reference memory)

# read cache
When I mount the USB drive again 6.351
And I read the content of the test FS 0.453
Then patterns cover at least 99% of the test FS size in the guest's memory 2.773

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

When I umount the USB drive 0.485
Then I find very few patterns in the guest's memory 3.417

Pattern coverage: 0.000% (0 MiB out of 1194 MiB reference memory)

After features/support/hooks.rb:291 1.117
After features/support/hooks.rb:75 0.000
51.266
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.307
And I prepare Tails for memory erasure tests 0.636
When I fill a 128 MiB file with a known pattern on the root filesystem 13.371
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.568
Then patterns cover at least 128 MiB in the guest's memory 4.223

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

When I trigger shutdown 0.623
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.515

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

After features/support/hooks.rb:291 3.490
After features/support/hooks.rb:75 0.000
6:1.419
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 5:16.926
And I prepare Tails for memory erasure tests 0.403
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.557
When I trigger shutdown 0.390
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.122

Pattern coverage: 0.000% (0 MiB out of 1181 MiB reference memory)

After features/support/hooks.rb:291 3.493
After features/support/hooks.rb:75 0.010