Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 29 16 May 2026, 14:11

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 7:19.654 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.
18.681
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 6.540
And I prepare Tails for memory erasure tests 0.354
When I start a process allocating 128 MiB of memory with a known pattern 2.222
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 1.973

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

When I kill the allocating process 0.794
Then I find very few patterns in the guest's memory after 5 seconds 6.794

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

After features/support/hooks.rb:335 0.566
After features/support/hooks.rb:104 0.000
17.039
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 6.541
And I prepare Tails for memory erasure tests 0.361
And I find very few patterns in the guest's memory 1.626

Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.566
Then patterns cover at least 99% of the test FS size in the guest's memory 1.858

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

When I umount "/mnt" 0.373
Then I find very few patterns in the guest's memory after 3 seconds 4.711

Pattern coverage: 0.000% (0 MiB out of 1474 MiB reference memory)

After features/support/hooks.rb:335 0.707
After features/support/hooks.rb:104 0.000
31.234
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.002
Given I have started Tails from DVD without network and logged in 6.617
And I prepare Tails for memory erasure tests 0.311
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.143
Then I find very few patterns in the guest's memory 1.649

Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.696
Then patterns cover at least 75% of the test FS size in the guest's memory 1.963

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

When I umount the USB drive 0.726
Then I find very few patterns in the guest's memory after 3 seconds 4.686

Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)

# read cache
When I mount the USB drive again 0.152
And I read the content of the test FS 0.426
Then patterns cover at least 99% of the test FS size in the guest's memory 1.811

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

When I umount the USB drive 0.349
Then I find very few patterns in the guest's memory after 3 seconds 4.699

Pattern coverage: 0.000% (0 MiB out of 1465 MiB reference memory)

After features/support/hooks.rb:335 1.018
After features/support/hooks.rb:104 0.000
1:1.318
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 6.611
And I prepare Tails for memory erasure tests 0.344
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 32.294
Then I find very few patterns in the guest's memory 1.750

Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.445
Then patterns cover at least 99% of the test FS size in the guest's memory 1.860

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

When I umount the USB drive 0.543
Then I find very few patterns in the guest's memory after 3 seconds 4.701

Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)

# read cache
When I mount the USB drive again 4.606
And I read the content of the test FS 0.311
Then patterns cover at least 99% of the test FS size in the guest's memory 1.783

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

When I umount the USB drive 0.415
Then I find very few patterns in the guest's memory after 3 seconds 4.649

Pattern coverage: 0.000% (0 MiB out of 1459 MiB reference memory)

After features/support/hooks.rb:335 0.992
After features/support/hooks.rb:104 0.000
49.144
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 6.419
And I prepare Tails for memory erasure tests 0.380
When I fill a 128 MiB file with a known pattern on the root filesystem 18.745
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.749
Then patterns cover at least 128 MiB in the guest's memory 1.346

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 20.498

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

After features/support/hooks.rb:335 3.419
After features/support/hooks.rb:104 0.000
4:22.236
Before features/support/hooks.rb:270 0.000
Before features/support/hooks.rb:277 0.001
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:43.174
And I prepare Tails for memory erasure tests 0.360
When I fill a 128 MiB file with a known pattern on the persistent filesystem 17.794
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 20.902

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

After features/support/hooks.rb:335 3.528
After features/support/hooks.rb:104 0.009