Project Number Date
test_Tails_ISO_stable 4688 29 Feb 2024, 17:26

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 9:29.707 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.
17.724
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.019
And I prepare Tails for memory erasure tests 0.422
When I start a process allocating 128 MiB of memory with a known pattern 1.136
Then patterns cover at least 128 MiB in the guest's memory 3.511

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

When I kill the allocating process 0.801
Then I find very few patterns in the guest's memory 3.831

Pattern coverage: 0.000% (0 MiB out of 929 MiB reference memory)

After features/support/hooks.rb:291 0.787
After features/support/hooks.rb:75 0.000
20.754
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.874
And I prepare Tails for memory erasure tests 0.342
And I find very few patterns in the guest's memory 4.027

Pattern coverage: 0.000% (0 MiB out of 928 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.335
Then patterns cover at least 99% of the test FS size in the guest's memory 3.137

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

When I umount "/mnt" 0.328
Then I find very few patterns in the guest's memory 3.707

Pattern coverage: 0.000% (0 MiB out of 928 MiB reference memory)

After features/support/hooks.rb:291 0.775
After features/support/hooks.rb:75 0.000
37.062
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.961
And I prepare Tails for memory erasure tests 0.388
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.704
Then I find very few patterns in the guest's memory 3.444

Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.158
Then patterns cover at least 86% of the test FS size in the guest's memory 3.397

Pattern coverage: 98.283% (125 MiB out of 127 MiB reference memory)

When I umount the USB drive 1.011
Then I find very few patterns in the guest's memory 3.747

Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)

# read cache
When I mount the USB drive again 0.186
And I read the content of the test FS 0.488
Then patterns cover at least 99% of the test FS size in the guest's memory 3.356

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

When I umount the USB drive 0.526
Then I find very few patterns in the guest's memory 3.690

Pattern coverage: 0.000% (0 MiB out of 910 MiB reference memory)

After features/support/hooks.rb:291 0.809
After features/support/hooks.rb:75 0.000
1:3.016
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 0.396
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.900
Then I find very few patterns in the guest's memory 3.448

Pattern coverage: 0.000% (0 MiB out of 925 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.511
Then patterns cover at least 99% of the test FS size in the guest's memory 2.690

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

When I umount the USB drive 0.723
Then I find very few patterns in the guest's memory 3.191

Pattern coverage: 0.000% (0 MiB out of 925 MiB reference memory)

# read cache
When I mount the USB drive again 3.948
And I read the content of the test FS 0.389
Then patterns cover at least 99% of the test FS size in the guest's memory 2.777

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

When I umount the USB drive 0.472
Then I find very few patterns in the guest's memory 3.606

Pattern coverage: 0.000% (0 MiB out of 925 MiB reference memory)

After features/support/hooks.rb:291 0.685
After features/support/hooks.rb:75 0.000
47.350
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.288
And I prepare Tails for memory erasure tests 0.397
When I fill a 128 MiB file with a known pattern on the root filesystem 12.987
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.358
Then patterns cover at least 128 MiB in the guest's memory 2.562

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 1.720

Pattern coverage: 0.000% (0 MiB out of 932 MiB reference memory)

After features/support/hooks.rb:291 3.476
After features/support/hooks.rb:75 0.000
6:23.801
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 5:36.462
And I prepare Tails for memory erasure tests 0.372
When I fill a 128 MiB file with a known pattern on the persistent filesystem 24.818
When I trigger shutdown 0.010
And I wait 20 seconds 20.020

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.117

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

After features/support/hooks.rb:291 3.508
After features/support/hooks.rb:75 0.011