Project Number Date
test_Tails_ISO_stable 5373 07 Jan 2025, 16:41

Feature Report

Steps Scenarios Features
Feature Passed Failed Skipped Pending Undefined Total Passed Failed Total Duration Status
System memory erasure on shutdown 51 0 0 0 0 51 6 0 6 11:57.451 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.
20.355
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.167
And I prepare Tails for memory erasure tests 0.439
When I start a process allocating 128 MiB of memory with a known pattern 1.285
Then patterns cover at least 128 MiB in the guest's memory 4.483

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

When I kill the allocating process 0.645
Then I find very few patterns in the guest's memory after 3 seconds 5.334

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

After features/support/hooks.rb:326 1.179
After features/support/hooks.rb:100 0.000
23.584
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.184
And I prepare Tails for memory erasure tests 0.515
And I find very few patterns in the guest's memory 3.525

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.744
Then patterns cover at least 99% of the test FS size in the guest's memory 3.213

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

When I umount "/mnt" 0.510
Then I find very few patterns in the guest's memory after 3 seconds 5.891

Pattern coverage: 0.000% (0 MiB out of 879 MiB reference memory)

After features/support/hooks.rb:326 1.248
After features/support/hooks.rb:100 0.000
52.062
Before features/support/hooks.rb:269 0.002
Given I have started Tails from DVD without network and logged in 8.361
And I prepare Tails for memory erasure tests 0.597
When I plug and mount a 128 MiB USB drive with a vfat filesystem 9.257
Then I find very few patterns in the guest's memory 3.490

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 4.496
Then patterns cover at least 75% of the test FS size in the guest's memory 4.122

Pattern coverage: 86.123% (109 MiB out of 127 MiB reference memory)

When I umount the USB drive 0.920
Then I find very few patterns in the guest's memory after 3 seconds 6.597

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

# read cache
When I mount the USB drive again 0.303
And I read the content of the test FS 0.597
Then patterns cover at least 99% of the test FS size in the guest's memory 4.023

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

When I umount the USB drive 2.685
Then I find very few patterns in the guest's memory after 3 seconds 6.609

Pattern coverage: 0.000% (0 MiB out of 877 MiB reference memory)

After features/support/hooks.rb:326 0.927
After features/support/hooks.rb:100 0.000
1:16.347
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.126
And I prepare Tails for memory erasure tests 0.528
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.579
Then I find very few patterns in the guest's memory 4.155

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

# write cache
When I fill the USB drive with a known pattern 2.268
Then patterns cover at least 99% of the test FS size in the guest's memory 3.434

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

When I umount the USB drive 0.955
Then I find very few patterns in the guest's memory after 3 seconds 5.449

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

# read cache
When I mount the USB drive again 4.818
And I read the content of the test FS 0.437
Then patterns cover at least 99% of the test FS size in the guest's memory 3.264

Pattern coverage: 106.115% (97 MiB out of 91 MiB reference memory)

When I umount the USB drive 0.668
Then I find very few patterns in the guest's memory after 3 seconds 6.662

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

After features/support/hooks.rb:326 1.256
After features/support/hooks.rb:100 0.000
52.294
Before features/support/hooks.rb:269 0.003
Given I have started Tails from DVD without network and logged in 8.288
And I prepare Tails for memory erasure tests 0.490
When I fill a 128 MiB file with a known pattern on the root filesystem 14.170
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 5.420
Then patterns cover at least 128 MiB in the guest's memory 2.994

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

When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 20.915

Pattern coverage: 0.000% (0 MiB out of 882 MiB reference memory)

After features/support/hooks.rb:326 3.733
After features/support/hooks.rb:100 0.000
8:12.806
Before features/support/hooks.rb:269 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 7:21.413
And I prepare Tails for memory erasure tests 0.625
When I fill a 128 MiB file with a known pattern on the persistent filesystem 29.074
When I trigger shutdown 0.022
Then I find very few patterns in the guest's memory after 20 seconds 21.670

Pattern coverage: 0.000% (0 MiB out of 909 MiB reference memory)

After features/support/hooks.rb:326 3.697
After features/support/hooks.rb:100 0.020