Project Number Date
test_Tails_ISO_devel 3718 04 Mar 2025, 09:18

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 11:29.863 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.
25.183
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.802
And I prepare Tails for memory erasure tests 0.460
When I start a process allocating 128 MiB of memory with a known pattern 2.345
Then patterns cover at least 128 MiB in the guest's memory 3.546

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

When I kill the allocating process 1.627
Then I find very few patterns in the guest's memory after 5 seconds 8.399

Pattern coverage: 0.000% (0 MiB out of 897 MiB reference memory)

After features/support/hooks.rb:330 0.811
After features/support/hooks.rb:100 0.000
25.544
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.003
Given I have started Tails from DVD without network and logged in 8.650
And I prepare Tails for memory erasure tests 0.479
And I find very few patterns in the guest's memory 3.070

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 2.430
Then patterns cover at least 99% of the test FS size in the guest's memory 3.568

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

When I umount "/mnt" 1.024
Then I find very few patterns in the guest's memory after 3 seconds 6.320

Pattern coverage: 0.000% (0 MiB out of 890 MiB reference memory)

After features/support/hooks.rb:330 1.363
After features/support/hooks.rb:100 0.000
57.031
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 7.944
And I prepare Tails for memory erasure tests 0.422
When I plug and mount a 128 MiB USB drive with a vfat filesystem 10.214
Then I find very few patterns in the guest's memory 3.601

Pattern coverage: 0.000% (0 MiB out of 915 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 10.666
Then patterns cover at least 75% of the test FS size in the guest's memory 3.796

Pattern coverage: 89.500% (114 MiB out of 127 MiB reference memory)

When I umount the USB drive 3.376
Then I find very few patterns in the guest's memory after 3 seconds 5.978

Pattern coverage: 0.000% (0 MiB out of 915 MiB reference memory)

# read cache
When I mount the USB drive again 0.259
And I read the content of the test FS 0.528
Then patterns cover at least 99% of the test FS size in the guest's memory 3.560

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

When I umount the USB drive 0.568
Then I find very few patterns in the guest's memory after 3 seconds 6.112

Pattern coverage: 0.000% (0 MiB out of 915 MiB reference memory)

After features/support/hooks.rb:330 1.117
After features/support/hooks.rb:100 0.000
1:15.421
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.031
And I prepare Tails for memory erasure tests 0.515
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 35.814
Then I find very few patterns in the guest's memory 2.517

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 5.091
Then patterns cover at least 99% of the test FS size in the guest's memory 2.925

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

When I umount the USB drive 1.018
Then I find very few patterns in the guest's memory after 3 seconds 5.349

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

# read cache
When I mount the USB drive again 4.752
And I read the content of the test FS 0.510
Then patterns cover at least 99% of the test FS size in the guest's memory 2.794

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

When I umount the USB drive 0.656
Then I find very few patterns in the guest's memory after 3 seconds 5.443

Pattern coverage: 0.000% (0 MiB out of 892 MiB reference memory)

After features/support/hooks.rb:330 1.718
After features/support/hooks.rb:100 0.000
51.241
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 8.192
And I prepare Tails for memory erasure tests 0.521
When I fill a 128 MiB file with a known pattern on the root filesystem 16.991
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.078
Then patterns cover at least 128 MiB in the guest's memory 2.707

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 20.735

Pattern coverage: 0.000% (0 MiB out of 888 MiB reference memory)

After features/support/hooks.rb:330 3.484
After features/support/hooks.rb:100 0.000
7:35.442
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 6:50.031
And I prepare Tails for memory erasure tests 0.568
When I fill a 128 MiB file with a known pattern on the persistent filesystem 23.681
When I trigger shutdown 0.012
Then I find very few patterns in the guest's memory after 20 seconds 21.148

Pattern coverage: 0.000% (0 MiB out of 900 MiB reference memory)

After features/support/hooks.rb:330 3.534
After features/support/hooks.rb:100 0.009