Project Number Date
test_Tails_ISO_21565-flatpak-safe 20 31 Aug 2026, 03:14

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 7:8.486 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.
19.434
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.134
And I prepare Tails for memory erasure tests 0.342
When I start a process allocating 128 MiB of memory with a known pattern 2.154
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.874

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

When I kill the allocating process 0.228
Then I find very few patterns in the guest's memory after 5 seconds 7.699

Pattern coverage: 0.000% (0 MiB out of 1478 MiB reference memory)

After features/support/hooks.rb:339 0.726
After features/support/hooks.rb:108 0.000
19.275
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.192
And I prepare Tails for memory erasure tests 0.296
And I find very few patterns in the guest's memory 2.574

Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.451
Then patterns cover at least 99% of the test FS size in the guest's memory 2.834

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

When I umount "/mnt" 0.370
Then I find very few patterns in the guest's memory after 3 seconds 5.555

Pattern coverage: 0.000% (0 MiB out of 1470 MiB reference memory)

After features/support/hooks.rb:339 0.903
After features/support/hooks.rb:108 0.000
35.944
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.180
And I prepare Tails for memory erasure tests 0.266
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.118
Then I find very few patterns in the guest's memory 2.565

Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.613
Then patterns cover at least 75% of the test FS size in the guest's memory 2.943

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

When I umount the USB drive 0.665
Then I find very few patterns in the guest's memory after 3 seconds 5.854

Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)

# read cache
When I mount the USB drive again 0.166
And I read the content of the test FS 0.585
Then patterns cover at least 99% of the test FS size in the guest's memory 2.963

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

When I umount the USB drive 0.412
Then I find very few patterns in the guest's memory after 3 seconds 5.606

Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)

After features/support/hooks.rb:339 0.796
After features/support/hooks.rb:108 0.000
1:0.915
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.134
And I prepare Tails for memory erasure tests 0.319
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 29.587
Then I find very few patterns in the guest's memory 2.648

Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 0.968
Then patterns cover at least 99% of the test FS size in the guest's memory 2.663

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

When I umount the USB drive 0.437
Then I find very few patterns in the guest's memory after 3 seconds 5.377

Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)

# read cache
When I mount the USB drive again 3.931
And I read the content of the test FS 0.353
Then patterns cover at least 99% of the test FS size in the guest's memory 2.729

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

When I umount the USB drive 0.456
Then I find very few patterns in the guest's memory after 3 seconds 5.308

Pattern coverage: 0.000% (0 MiB out of 1476 MiB reference memory)

After features/support/hooks.rb:339 0.798
After features/support/hooks.rb:108 0.000
44.201
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails from DVD without network and logged in 6.175
And I prepare Tails for memory erasure tests 0.279
When I fill a 128 MiB file with a known pattern on the root filesystem 13.208
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.621
Then patterns cover at least 128 MiB in the guest's memory 2.150

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

When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.759

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

After features/support/hooks.rb:339 3.859
After features/support/hooks.rb:108 0.000
4:8.715
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:36.879
And I prepare Tails for memory erasure tests 0.207
When I fill a 128 MiB file with a known pattern on the persistent filesystem 10.603
When I trigger shutdown 0.014
Then I find very few patterns in the guest's memory after 20 seconds 21.010

Pattern coverage: 0.000% (0 MiB out of 1471 MiB reference memory)

After features/support/hooks.rb:339 3.455
After features/support/hooks.rb:108 0.020