Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 69 21 Jun 2026, 14:32

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 8:2.258 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.
19.472
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.027
Given I have started Tails from DVD without network and logged in 7.470
And I prepare Tails for memory erasure tests 0.436
When I start a process allocating 128 MiB of memory with a known pattern 2.233
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.866

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

When I kill the allocating process 0.190
Then I find very few patterns in the guest's memory after 5 seconds 7.275

Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)

After features/support/hooks.rb:339 0.927
After features/support/hooks.rb:108 0.000
18.912
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.029
Given I have started Tails from DVD without network and logged in 7.264
And I prepare Tails for memory erasure tests 0.486
And I find very few patterns in the guest's memory 1.684

Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.712
Then patterns cover at least 99% of the test FS size in the guest's memory 1.934

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

When I umount "/mnt" 0.414
Then I find very few patterns in the guest's memory after 3 seconds 5.414

Pattern coverage: 0.000% (0 MiB out of 1452 MiB reference memory)

After features/support/hooks.rb:339 0.945
After features/support/hooks.rb:108 0.000
34.185
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.018
Given I have started Tails from DVD without network and logged in 7.297
And I prepare Tails for memory erasure tests 0.389
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.412
Then I find very few patterns in the guest's memory 1.851

Pattern coverage: 0.000% (0 MiB out of 1450 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.905
Then patterns cover at least 75% of the test FS size in the guest's memory 2.567

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

When I umount the USB drive 0.879
Then I find very few patterns in the guest's memory after 3 seconds 4.851

Pattern coverage: 0.000% (0 MiB out of 1450 MiB reference memory)

# read cache
When I mount the USB drive again 0.192
And I read the content of the test FS 0.460
Then patterns cover at least 99% of the test FS size in the guest's memory 2.088

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

When I umount the USB drive 0.405
Then I find very few patterns in the guest's memory after 3 seconds 4.884

Pattern coverage: 0.000% (0 MiB out of 1450 MiB reference memory)

After features/support/hooks.rb:339 0.613
After features/support/hooks.rb:108 0.000
1:2.306
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.019
Given I have started Tails from DVD without network and logged in 7.367
And I prepare Tails for memory erasure tests 0.511
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.580
Then I find very few patterns in the guest's memory 1.776

Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.456
Then patterns cover at least 99% of the test FS size in the guest's memory 2.137

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

When I umount the USB drive 0.510
Then I find very few patterns in the guest's memory after 3 seconds 4.774

Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)

# read cache
When I mount the USB drive again 3.978
And I read the content of the test FS 0.299
Then patterns cover at least 99% of the test FS size in the guest's memory 1.852

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

When I umount the USB drive 0.368
Then I find very few patterns in the guest's memory after 3 seconds 4.691

Pattern coverage: 0.000% (0 MiB out of 1454 MiB reference memory)

After features/support/hooks.rb:339 1.382
After features/support/hooks.rb:108 0.000
54.023
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.019
Given I have started Tails from DVD without network and logged in 7.028
And I prepare Tails for memory erasure tests 0.394
When I fill a 128 MiB file with a known pattern on the root filesystem 22.843
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.718
Then patterns cover at least 128 MiB in the guest's memory 1.422

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

When I trigger shutdown 0.007
Then I find very few patterns in the guest's memory after 20 seconds 20.608

Pattern coverage: 0.000% (0 MiB out of 1457 MiB reference memory)

After features/support/hooks.rb:339 3.559
After features/support/hooks.rb:108 0.000
4:53.357
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.019
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:12.565
And I prepare Tails for memory erasure tests 0.373
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.514
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.896

Pattern coverage: 0.000% (0 MiB out of 1523 MiB reference memory)

After features/support/hooks.rb:339 3.415
After features/support/hooks.rb:108 0.065