Project Number Date
test_Tails_ISO_stable 4740 26 Mar 2024, 04:29

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 9:53.275 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.
17.994
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.295
And I prepare Tails for memory erasure tests 0.464
When I start a process allocating 128 MiB of memory with a known pattern 1.278
Then patterns cover at least 128 MiB in the guest's memory 3.630

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

When I kill the allocating process 0.543
Then I find very few patterns in the guest's memory 3.781

Pattern coverage: 0.000% (0 MiB out of 904 MiB reference memory)

After features/support/hooks.rb:291 0.842
After features/support/hooks.rb:75 0.000
22.768
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.018
And I prepare Tails for memory erasure tests 0.499
And I find very few patterns in the guest's memory 3.989

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.849
Then patterns cover at least 99% of the test FS size in the guest's memory 3.308

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

When I umount "/mnt" 0.908
Then I find very few patterns in the guest's memory 4.194

Pattern coverage: 0.000% (0 MiB out of 884 MiB reference memory)

After features/support/hooks.rb:291 0.775
After features/support/hooks.rb:75 0.000
58.472
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 9.136
And I prepare Tails for memory erasure tests 0.816
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.981
Then I find very few patterns in the guest's memory 8.358

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.328
Then patterns cover at least 86% of the test FS size in the guest's memory 9.335

Pattern coverage: 95.595% (121 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.233
Then I find very few patterns in the guest's memory 8.019

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

# read cache
When I mount the USB drive again 0.428
And I read the content of the test FS 0.486
Then patterns cover at least 99% of the test FS size in the guest's memory 4.168

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

When I umount the USB drive 1.691
Then I find very few patterns in the guest's memory 4.487

Pattern coverage: 0.000% (0 MiB out of 906 MiB reference memory)

After features/support/hooks.rb:291 0.791
After features/support/hooks.rb:75 0.000
1:3.181
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 10.069
And I prepare Tails for memory erasure tests 0.485
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.069
Then I find very few patterns in the guest's memory 3.857

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.627
Then patterns cover at least 99% of the test FS size in the guest's memory 2.835

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

When I umount the USB drive 0.670
Then I find very few patterns in the guest's memory 3.301

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

# read cache
When I mount the USB drive again 3.704
And I read the content of the test FS 0.496
Then patterns cover at least 99% of the test FS size in the guest's memory 3.502

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

When I umount the USB drive 0.580
Then I find very few patterns in the guest's memory 3.979

Pattern coverage: 0.000% (0 MiB out of 893 MiB reference memory)

After features/support/hooks.rb:291 0.934
After features/support/hooks.rb:75 0.000
49.303
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.013
And I prepare Tails for memory erasure tests 0.483
When I fill a 128 MiB file with a known pattern on the root filesystem 14.437
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.295
Then patterns cover at least 128 MiB in the guest's memory 3.152

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

When I trigger shutdown 0.014
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.885

Pattern coverage: 0.000% (0 MiB out of 908 MiB reference memory)

After features/support/hooks.rb:291 3.690
After features/support/hooks.rb:75 0.000
6:21.556
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 5:37.494
And I prepare Tails for memory erasure tests 0.412
When I fill a 128 MiB file with a known pattern on the persistent filesystem 21.465
When I trigger shutdown 0.011
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.152

Pattern coverage: 0.000% (0 MiB out of 920 MiB reference memory)

After features/support/hooks.rb:291 3.584
After features/support/hooks.rb:75 0.013