Project Number Date
test_Tails_ISO_stable 4610 10 Jan 2024, 16:08

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 15:16.355 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.
18.295
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.900
And I prepare Tails for memory erasure tests 0.641
When I start a process allocating 128 MiB of memory with a known pattern 2.404
Then patterns cover at least 128 MiB in the guest's memory 3.290

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

When I kill the allocating process 0.549
Then I find very few patterns in the guest's memory 3.510

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

After features/support/hooks.rb:291 0.757
After features/support/hooks.rb:75 0.000
57.270
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.279
And I prepare Tails for memory erasure tests 0.459
And I find very few patterns in the guest's memory 4.130

Pattern coverage: 0.000% (0 MiB out of 1229 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 37.639
Then patterns cover at least 99% of the test FS size in the guest's memory 2.863

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

When I umount "/mnt" 0.311
Then I find very few patterns in the guest's memory 3.585

Pattern coverage: 0.000% (0 MiB out of 1229 MiB reference memory)

After features/support/hooks.rb:291 0.731
After features/support/hooks.rb:75 0.000
3:30.795
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.891
And I prepare Tails for memory erasure tests 0.666
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.752
Then I find very few patterns in the guest's memory 4.071

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

# write cache
When I fill the USB drive with a known pattern 2:51.713
Then patterns cover at least 86% of the test FS size in the guest's memory 4.632

Pattern coverage: 96.090% (119 MiB out of 124 MiB reference memory)

When I umount the USB drive 0.693
Then I find very few patterns in the guest's memory 3.692

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

# read cache
When I mount the USB drive again 0.273
And I read the content of the test FS 2.306
Then patterns cover at least 99% of the test FS size in the guest's memory 3.749

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

When I umount the USB drive 0.339
Then I find very few patterns in the guest's memory 4.013

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

After features/support/hooks.rb:291 1.073
After features/support/hooks.rb:75 0.000
3:8.156
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.989
And I prepare Tails for memory erasure tests 0.600
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.636
Then I find very few patterns in the guest's memory 3.897

Pattern coverage: 0.000% (0 MiB out of 1230 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2:3.052
Then patterns cover at least 99% of the test FS size in the guest's memory 3.136

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

When I umount the USB drive 0.517
Then I find very few patterns in the guest's memory 3.648

Pattern coverage: 0.000% (0 MiB out of 1230 MiB reference memory)

# read cache
When I mount the USB drive again 3.685
And I read the content of the test FS 1.378
Then patterns cover at least 99% of the test FS size in the guest's memory 3.090

Pattern coverage: 108.662% (97 MiB out of 89 MiB reference memory)

When I umount the USB drive 0.581
Then I find very few patterns in the guest's memory 3.943

Pattern coverage: 0.000% (0 MiB out of 1230 MiB reference memory)

After features/support/hooks.rb:291 1.754
After features/support/hooks.rb:75 0.000
51.193
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 7.960
And I prepare Tails for memory erasure tests 0.738
When I fill a 128 MiB file with a known pattern on the root filesystem 12.649
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.308
Then patterns cover at least 128 MiB in the guest's memory 2.911

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

When I trigger shutdown 2.703
And I wait 20 seconds 20.002

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.918

Pattern coverage: 0.000% (0 MiB out of 1232 MiB reference memory)

After features/support/hooks.rb:291 3.498
After features/support/hooks.rb:75 0.000
6:30.642
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 5:44.661
And I prepare Tails for memory erasure tests 0.474
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.722
When I trigger shutdown 0.437
And I wait 20 seconds 20.010

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.336

Pattern coverage: 0.000% (0 MiB out of 1174 MiB reference memory)

After features/support/hooks.rb:291 3.498
After features/support/hooks.rb:75 0.014