Project Number Date
test_Tails_ISO_21195-dont-include-unused-firmware 5 27 Jul 2026, 15:27

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 8:13.109 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.
19.488
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.615
And I prepare Tails for memory erasure tests 0.401
When I start a process allocating 128 MiB of memory with a known pattern 2.242
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.366

Pattern coverage: 100.395% (127 MiB out of 127 MiB reference memory)

When I kill the allocating process 0.993
Then I find very few patterns in the guest's memory after 5 seconds 6.869

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

After features/support/hooks.rb:339 0.817
After features/support/hooks.rb:108 0.000
18.719
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.848
And I prepare Tails for memory erasure tests 0.359
And I find very few patterns in the guest's memory 1.904

Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.927
Then patterns cover at least 99% of the test FS size in the guest's memory 2.228

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

When I umount "/mnt" 0.484
Then I find very few patterns in the guest's memory after 3 seconds 4.966

Pattern coverage: 0.000% (0 MiB out of 1461 MiB reference memory)

After features/support/hooks.rb:339 1.124
After features/support/hooks.rb:108 0.000
33.877
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.722
And I prepare Tails for memory erasure tests 0.339
When I plug and mount a 128 MiB USB drive with a vfat filesystem 6.071
Then I find very few patterns in the guest's memory 1.873

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.936
Then patterns cover at least 75% of the test FS size in the guest's memory 2.058

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

When I umount the USB drive 0.795
Then I find very few patterns in the guest's memory after 3 seconds 4.775

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

# read cache
When I mount the USB drive again 0.203
And I read the content of the test FS 0.403
Then patterns cover at least 99% of the test FS size in the guest's memory 2.226

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

When I umount the USB drive 0.636
Then I find very few patterns in the guest's memory after 3 seconds 4.834

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

After features/support/hooks.rb:339 1.022
After features/support/hooks.rb:108 0.000
1:1.438
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 6.769
And I prepare Tails for memory erasure tests 0.381
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 30.013
Then I find very few patterns in the guest's memory 1.936

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.443
Then patterns cover at least 99% of the test FS size in the guest's memory 2.115

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

When I umount the USB drive 0.623
Then I find very few patterns in the guest's memory after 3 seconds 4.752

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

# read cache
When I mount the USB drive again 4.812
And I read the content of the test FS 0.559
Then patterns cover at least 99% of the test FS size in the guest's memory 2.441

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

When I umount the USB drive 0.545
Then I find very few patterns in the guest's memory after 3 seconds 5.045

Pattern coverage: 0.000% (0 MiB out of 1466 MiB reference memory)

After features/support/hooks.rb:339 0.929
After features/support/hooks.rb:108 0.000
1:1.094
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails from DVD without network and logged in 7.172
And I prepare Tails for memory erasure tests 0.389
When I fill a 128 MiB file with a known pattern on the root filesystem 29.478
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.929
Then patterns cover at least 128 MiB in the guest's memory 1.569

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

When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.547

Pattern coverage: 0.000% (0 MiB out of 1467 MiB reference memory)

After features/support/hooks.rb:339 3.538
After features/support/hooks.rb:108 0.000
4:58.491
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.003
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:10.425
And I prepare Tails for memory erasure tests 0.392
When I fill a 128 MiB file with a known pattern on the persistent filesystem 26.668
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 21.000

Pattern coverage: 0.000% (0 MiB out of 1468 MiB reference memory)

After features/support/hooks.rb:339 3.775
After features/support/hooks.rb:108 0.017