Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 12 07 May 2026, 14:39

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 7:50.808 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.
18.803
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 6.680
And I prepare Tails for memory erasure tests 0.337
When I start a process allocating 128 MiB of memory with a known pattern 2.186
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.194

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

When I kill the allocating process 0.244
Then I find very few patterns in the guest's memory after 5 seconds 7.159

Pattern coverage: 0.000% (0 MiB out of 1486 MiB reference memory)

After features/support/hooks.rb:331 1.045
After features/support/hooks.rb:100 0.000
18.527
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 7.079
And I prepare Tails for memory erasure tests 0.418
And I find very few patterns in the guest's memory 1.850

Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.783
Then patterns cover at least 99% of the test FS size in the guest's memory 2.021

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

When I umount "/mnt" 0.350
Then I find very few patterns in the guest's memory after 3 seconds 5.023

Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)

After features/support/hooks.rb:331 0.756
After features/support/hooks.rb:100 0.000
33.898
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 6.967
And I prepare Tails for memory erasure tests 0.422
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.484
Then I find very few patterns in the guest's memory 2.226

Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.770
Then patterns cover at least 75% of the test FS size in the guest's memory 2.324

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

When I umount the USB drive 0.762
Then I find very few patterns in the guest's memory after 3 seconds 4.959

Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)

# read cache
When I mount the USB drive again 0.164
And I read the content of the test FS 0.462
Then patterns cover at least 99% of the test FS size in the guest's memory 2.021

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

When I umount the USB drive 0.373
Then I find very few patterns in the guest's memory after 3 seconds 4.959

Pattern coverage: 0.000% (0 MiB out of 1480 MiB reference memory)

After features/support/hooks.rb:331 1.176
After features/support/hooks.rb:100 0.000
57.184
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.009
Given I have started Tails from DVD without network and logged in 7.154
And I prepare Tails for memory erasure tests 0.461
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.019
Then I find very few patterns in the guest's memory 1.786

Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.439
Then patterns cover at least 99% of the test FS size in the guest's memory 2.073

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

When I umount the USB drive 0.536
Then I find very few patterns in the guest's memory after 3 seconds 5.062

Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)

# read cache
When I mount the USB drive again 4.376
And I read the content of the test FS 0.342
Then patterns cover at least 99% of the test FS size in the guest's memory 1.792

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

When I umount the USB drive 0.393
Then I find very few patterns in the guest's memory after 3 seconds 4.745

Pattern coverage: 0.000% (0 MiB out of 1488 MiB reference memory)

After features/support/hooks.rb:331 0.617
After features/support/hooks.rb:100 0.000
59.622
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails from DVD without network and logged in 6.832
And I prepare Tails for memory erasure tests 0.421
When I fill a 128 MiB file with a known pattern on the root filesystem 28.439
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.570
Then patterns cover at least 128 MiB in the guest's memory 1.794

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 20.558

Pattern coverage: 0.000% (0 MiB out of 1492 MiB reference memory)

After features/support/hooks.rb:331 3.642
After features/support/hooks.rb:100 0.000
4:42.771
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:3.910
And I prepare Tails for memory erasure tests 0.369
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.365
When I trigger shutdown 0.008
Then I find very few patterns in the guest's memory after 20 seconds 21.117

Pattern coverage: 0.000% (0 MiB out of 1509 MiB reference memory)

After features/support/hooks.rb:331 3.596
After features/support/hooks.rb:100 0.013