Project Number Date
test_Tails_ISO_stable 4973 25 Jul 2024, 12:42

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 12:40.496 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.
23.794
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.462
And I prepare Tails for memory erasure tests 0.551
When I start a process allocating 128 MiB of memory with a known pattern 3.492
Then patterns cover at least 128 MiB in the guest's memory 4.877

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

When I kill the allocating process 1.694
Then I find very few patterns in the guest's memory 4.715

Pattern coverage: 0.000% (0 MiB out of 872 MiB reference memory)

After features/support/hooks.rb:326 1.993
After features/support/hooks.rb:100 0.000
26.495
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.520
And I prepare Tails for memory erasure tests 0.647
And I find very few patterns in the guest's memory 4.570

Pattern coverage: 0.000% (0 MiB out of 872 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.077
Then patterns cover at least 99% of the test FS size in the guest's memory 3.919

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

When I umount "/mnt" 0.902
Then I find very few patterns in the guest's memory 5.856

Pattern coverage: 0.000% (0 MiB out of 872 MiB reference memory)

After features/support/hooks.rb:326 1.438
After features/support/hooks.rb:100 0.000
1:0.303
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.377
And I prepare Tails for memory erasure tests 0.440
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.185
Then I find very few patterns in the guest's memory 4.711

Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.645
Then patterns cover at least 86% of the test FS size in the guest's memory 4.390

Pattern coverage: 88.095% (112 MiB out of 127 MiB reference memory)

When I umount the USB drive 5.670
Then I find very few patterns in the guest's memory 6.341

Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)

# read cache
When I mount the USB drive again 0.892
And I read the content of the test FS 0.898
Then patterns cover at least 99% of the test FS size in the guest's memory 6.601

Pattern coverage: 100.596% (128 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.911
Then I find very few patterns in the guest's memory 8.236

Pattern coverage: 0.000% (0 MiB out of 876 MiB reference memory)

After features/support/hooks.rb:326 2.193
After features/support/hooks.rb:100 0.000
1:23.151
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.431
And I prepare Tails for memory erasure tests 0.476
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 41.081
Then I find very few patterns in the guest's memory 3.815

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.036
Then patterns cover at least 99% of the test FS size in the guest's memory 3.297

Pattern coverage: 106.113% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.891
Then I find very few patterns in the guest's memory 3.747

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

# read cache
When I mount the USB drive again 8.427
And I read the content of the test FS 0.680
Then patterns cover at least 99% of the test FS size in the guest's memory 3.631

Pattern coverage: 106.116% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 1.898
Then I find very few patterns in the guest's memory 4.735

Pattern coverage: 0.000% (0 MiB out of 891 MiB reference memory)

After features/support/hooks.rb:326 1.789
After features/support/hooks.rb:100 0.000
57.341
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 10.708
And I prepare Tails for memory erasure tests 0.500
When I fill a 128 MiB file with a known pattern on the root filesystem 18.388
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.063
Then patterns cover at least 128 MiB in the guest's memory 3.711

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

When I trigger shutdown 0.016
And I wait 20 seconds 20.010

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.941

Pattern coverage: 0.000% (0 MiB out of 870 MiB reference memory)

After features/support/hooks.rb:326 3.512
After features/support/hooks.rb:100 0.000
8:29.408
Before features/support/hooks.rb:269 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:43.594
And I prepare Tails for memory erasure tests 0.518
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.691
When I trigger shutdown 0.016
And I wait 20 seconds 20.014

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.573

Pattern coverage: 0.000% (0 MiB out of 894 MiB reference memory)

After features/support/hooks.rb:326 3.572
After features/support/hooks.rb:100 0.012