Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 27 14 May 2026, 14:17

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 7:39.639 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.
18.546
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.726
And I prepare Tails for memory erasure tests 0.344
When I start a process allocating 128 MiB of memory with a known pattern 2.198
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.108

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

When I kill the allocating process 0.231
Then I find very few patterns in the guest's memory after 5 seconds 6.937

Pattern coverage: 0.000% (0 MiB out of 1451 MiB reference memory)

After features/support/hooks.rb:335 0.735
After features/support/hooks.rb:104 0.000
18.193
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.014
Given I have started Tails from DVD without network and logged in 6.954
And I prepare Tails for memory erasure tests 0.361
And I find very few patterns in the guest's memory 1.702

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

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.711
Then patterns cover at least 99% of the test FS size in the guest's memory 1.968

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

When I umount "/mnt" 0.419
Then I find very few patterns in the guest's memory after 3 seconds 5.074

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

After features/support/hooks.rb:335 0.636
After features/support/hooks.rb:104 0.000
33.378
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.964
And I prepare Tails for memory erasure tests 0.422
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.253
Then I find very few patterns in the guest's memory 1.812

Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.809
Then patterns cover at least 75% of the test FS size in the guest's memory 2.410

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

When I umount the USB drive 0.755
Then I find very few patterns in the guest's memory after 3 seconds 4.902

Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)

# read cache
When I mount the USB drive again 0.209
And I read the content of the test FS 0.453
Then patterns cover at least 99% of the test FS size in the guest's memory 2.151

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

When I umount the USB drive 0.403
Then I find very few patterns in the guest's memory after 3 seconds 4.829

Pattern coverage: 0.000% (0 MiB out of 1460 MiB reference memory)

After features/support/hooks.rb:335 0.878
After features/support/hooks.rb:104 0.000
1:2.716
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails from DVD without network and logged in 6.815
And I prepare Tails for memory erasure tests 0.386
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 33.260
Then I find very few patterns in the guest's memory 1.830

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

# write cache
When I fill the USB drive with a known pattern 1.579
Then patterns cover at least 99% of the test FS size in the guest's memory 2.134

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

When I umount the USB drive 0.563
Then I find very few patterns in the guest's memory after 3 seconds 4.762

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

# read cache
When I mount the USB drive again 4.107
And I read the content of the test FS 0.286
Then patterns cover at least 99% of the test FS size in the guest's memory 1.779

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

When I umount the USB drive 0.407
Then I find very few patterns in the guest's memory after 3 seconds 4.801

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

After features/support/hooks.rb:335 1.300
After features/support/hooks.rb:104 0.000
51.941
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.006
Given I have started Tails from DVD without network and logged in 7.038
And I prepare Tails for memory erasure tests 0.412
When I fill a 128 MiB file with a known pattern on the root filesystem 20.505
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.821
Then patterns cover at least 128 MiB in the guest's memory 1.597

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

When I trigger shutdown 0.010
Then I find very few patterns in the guest's memory after 20 seconds 20.556

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

After features/support/hooks.rb:335 3.703
After features/support/hooks.rb:104 0.000
4:34.862
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:54.200
And I prepare Tails for memory erasure tests 0.338
When I fill a 128 MiB file with a known pattern on the persistent filesystem 19.411
When I trigger shutdown 0.006
Then I find very few patterns in the guest's memory after 20 seconds 20.906

Pattern coverage: 0.000% (0 MiB out of 1458 MiB reference memory)

After features/support/hooks.rb:335 3.386
After features/support/hooks.rb:104 0.015