Project Number Date
test_Tails_ISO_stable 4693 02 Mar 2024, 12:30

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 9:40.771 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.
18.641
Before features/support/hooks.rb:245 0.003
Given I have started Tails from DVD without network and logged in 8.124
And I prepare Tails for memory erasure tests 0.439
When I start a process allocating 128 MiB of memory with a known pattern 1.189
Then patterns cover at least 128 MiB in the guest's memory 4.057

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

When I kill the allocating process 0.677
Then I find very few patterns in the guest's memory 4.152

Pattern coverage: 0.000% (0 MiB out of 942 MiB reference memory)

After features/support/hooks.rb:291 0.828
After features/support/hooks.rb:75 0.000
22.365
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.075
And I prepare Tails for memory erasure tests 0.405
And I find very few patterns in the guest's memory 3.873

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.640
Then patterns cover at least 99% of the test FS size in the guest's memory 4.077

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

When I umount "/mnt" 0.348
Then I find very few patterns in the guest's memory 3.944

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

After features/support/hooks.rb:291 1.603
After features/support/hooks.rb:75 0.000
40.909
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 8.020
And I prepare Tails for memory erasure tests 0.402
When I plug and mount a 128 MiB USB drive with a vfat filesystem 7.751
Then I find very few patterns in the guest's memory 4.202

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

# write cache
When I fill the USB drive with a known pattern 2.281
Then patterns cover at least 86% of the test FS size in the guest's memory 4.362

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

When I umount the USB drive 1.045
Then I find very few patterns in the guest's memory 4.004

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

# read cache
When I mount the USB drive again 0.475
And I read the content of the test FS 0.493
Then patterns cover at least 99% of the test FS size in the guest's memory 3.525

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

When I umount the USB drive 0.459
Then I find very few patterns in the guest's memory 3.884

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

After features/support/hooks.rb:291 1.170
After features/support/hooks.rb:75 0.000
1:2.485
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.955
And I prepare Tails for memory erasure tests 0.389
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 28.596
Then I find very few patterns in the guest's memory 3.812

Pattern coverage: 0.000% (0 MiB out of 919 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.753
Then patterns cover at least 99% of the test FS size in the guest's memory 2.667

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

When I umount the USB drive 0.645
Then I find very few patterns in the guest's memory 3.917

Pattern coverage: 0.000% (0 MiB out of 919 MiB reference memory)

# read cache
When I mount the USB drive again 3.688
And I read the content of the test FS 0.374
Then patterns cover at least 99% of the test FS size in the guest's memory 3.128

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

When I umount the USB drive 1.190
Then I find very few patterns in the guest's memory 3.364

Pattern coverage: 0.000% (0 MiB out of 919 MiB reference memory)

After features/support/hooks.rb:291 0.658
After features/support/hooks.rb:75 0.000
50.153
Before features/support/hooks.rb:245 0.002
Given I have started Tails from DVD without network and logged in 7.943
And I prepare Tails for memory erasure tests 0.393
When I fill a 128 MiB file with a known pattern on the root filesystem 16.122
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.154
Then patterns cover at least 128 MiB in the guest's memory 2.699

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

When I trigger shutdown 0.011
And I wait 20 seconds 20.014

Slept for 20 seconds

Then I find very few patterns in the guest's memory 1.814

Pattern coverage: 0.000% (0 MiB out of 917 MiB reference memory)

After features/support/hooks.rb:291 3.503
After features/support/hooks.rb:75 0.000
6:26.216
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 5:41.145
And I prepare Tails for memory erasure tests 0.371
When I fill a 128 MiB file with a known pattern on the persistent filesystem 22.377
When I trigger shutdown 0.011
And I wait 20 seconds 20.011

Slept for 20 seconds

Then I find very few patterns in the guest's memory 2.299

Pattern coverage: 0.000% (0 MiB out of 951 MiB reference memory)

After features/support/hooks.rb:291 3.507
After features/support/hooks.rb:75 0.017