Project Number Date
test_Tails_ISO_stable 4704 09 Mar 2024, 12:29

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 9:51.478 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.
19.881
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 7.944
And I prepare Tails for memory erasure tests 0.388
When I start a process allocating 128 MiB of memory with a known pattern 1.227
Then patterns cover at least 128 MiB in the guest's memory 3.783

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

When I kill the allocating process 0.933
Then I find very few patterns in the guest's memory 5.604

Pattern coverage: 0.000% (0 MiB out of 924 MiB reference memory)

After features/support/hooks.rb:291 0.966
After features/support/hooks.rb:75 0.000
22.069
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.083
And I prepare Tails for memory erasure tests 0.375
And I find very few patterns in the guest's memory 3.696

Pattern coverage: 0.000% (0 MiB out of 939 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.914
Then patterns cover at least 99% of the test FS size in the guest's memory 3.435

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

When I umount "/mnt" 0.402
Then I find very few patterns in the guest's memory 4.159

Pattern coverage: 0.000% (0 MiB out of 939 MiB reference memory)

After features/support/hooks.rb:291 0.832
After features/support/hooks.rb:75 0.000
39.580
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.957
And I prepare Tails for memory erasure tests 0.377
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.781
Then I find very few patterns in the guest's memory 3.917

Pattern coverage: 0.000% (0 MiB out of 945 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.264
Then patterns cover at least 86% of the test FS size in the guest's memory 3.075

Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.080
Then I find very few patterns in the guest's memory 3.794

Pattern coverage: 0.000% (0 MiB out of 945 MiB reference memory)

# read cache
When I mount the USB drive again 0.693
And I read the content of the test FS 0.751
Then patterns cover at least 99% of the test FS size in the guest's memory 3.469

Pattern coverage: 100.000% (127 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.493
Then I find very few patterns in the guest's memory 3.923

Pattern coverage: 0.000% (0 MiB out of 945 MiB reference memory)

After features/support/hooks.rb:291 1.123
After features/support/hooks.rb:75 0.000
1:6.212
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.881
And I prepare Tails for memory erasure tests 0.368
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.737
Then I find very few patterns in the guest's memory 3.589

Pattern coverage: 0.000% (0 MiB out of 945 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.625
Then patterns cover at least 99% of the test FS size in the guest's memory 2.893

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

When I umount the USB drive 0.744
Then I find very few patterns in the guest's memory 3.453

Pattern coverage: 0.000% (0 MiB out of 945 MiB reference memory)

# read cache
When I mount the USB drive again 4.547
And I read the content of the test FS 0.334
Then patterns cover at least 99% of the test FS size in the guest's memory 2.890

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

When I umount the USB drive 0.526
Then I find very few patterns in the guest's memory 3.620

Pattern coverage: 0.000% (0 MiB out of 945 MiB reference memory)

After features/support/hooks.rb:291 0.949
After features/support/hooks.rb:75 0.000
48.475
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.828
And I prepare Tails for memory erasure tests 0.442
When I fill a 128 MiB file with a known pattern on the root filesystem 14.394
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.008
Then patterns cover at least 128 MiB in the guest's memory 2.933

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

When I trigger shutdown 0.016
And I wait 20 seconds 20.005

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.847

Pattern coverage: 0.000% (0 MiB out of 936 MiB reference memory)

After features/support/hooks.rb:291 3.713
After features/support/hooks.rb:75 0.000
6:35.259
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 5:51.842
And I prepare Tails for memory erasure tests 0.383
When I fill a 128 MiB file with a known pattern on the persistent filesystem 20.829
When I trigger shutdown 0.014
And I wait 20 seconds 20.019

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.169

Pattern coverage: 0.000% (0 MiB out of 941 MiB reference memory)

After features/support/hooks.rb:291 3.552
After features/support/hooks.rb:75 0.010