Project Number Date
test_Tails_ISO_stable-flatpak 48 16 Oct 2026, 19:39

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 7:14.854 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.
19.630
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.170
And I prepare Tails for memory erasure tests 0.265
When I start a process allocating 128 MiB of memory with a known pattern 2.166
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 3.186

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

When I kill the allocating process 0.180
Then I find very few patterns in the guest's memory after 5 seconds 7.660

Pattern coverage: 0.000% (0 MiB out of 1409 MiB reference memory)

After features/support/hooks.rb:339 0.607
After features/support/hooks.rb:108 0.000
19.579
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.144
And I prepare Tails for memory erasure tests 0.249
And I find very few patterns in the guest's memory 2.591

Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.435
Then patterns cover at least 99% of the test FS size in the guest's memory 3.130

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

When I umount "/mnt" 0.410
Then I find very few patterns in the guest's memory after 3 seconds 5.617

Pattern coverage: 0.000% (0 MiB out of 1407 MiB reference memory)

After features/support/hooks.rb:339 0.583
After features/support/hooks.rb:108 0.000
36.298
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.184
And I prepare Tails for memory erasure tests 0.251
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.167
Then I find very few patterns in the guest's memory 2.835

Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.625
Then patterns cover at least 75% of the test FS size in the guest's memory 3.123

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

When I umount the USB drive 0.673
Then I find very few patterns in the guest's memory after 3 seconds 5.585

Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)

# read cache
When I mount the USB drive again 0.183
And I read the content of the test FS 0.572
Then patterns cover at least 99% of the test FS size in the guest's memory 2.869

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

When I umount the USB drive 0.443
Then I find very few patterns in the guest's memory after 3 seconds 5.782

Pattern coverage: 0.000% (0 MiB out of 1410 MiB reference memory)

After features/support/hooks.rb:339 0.937
After features/support/hooks.rb:108 0.000
1:0.116
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 6.283
And I prepare Tails for memory erasure tests 0.263
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 27.737
Then I find very few patterns in the guest's memory 3.064

Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 0.999
Then patterns cover at least 99% of the test FS size in the guest's memory 2.929

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

When I umount the USB drive 0.499
Then I find very few patterns in the guest's memory after 3 seconds 5.538

Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)

# read cache
When I mount the USB drive again 3.935
And I read the content of the test FS 0.328
Then patterns cover at least 99% of the test FS size in the guest's memory 2.583

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

When I umount the USB drive 0.441
Then I find very few patterns in the guest's memory after 3 seconds 5.511

Pattern coverage: 0.000% (0 MiB out of 1401 MiB reference memory)

After features/support/hooks.rb:339 0.676
After features/support/hooks.rb:108 0.000
44.392
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails from DVD without network and logged in 6.318
And I prepare Tails for memory erasure tests 0.284
When I fill a 128 MiB file with a known pattern on the root filesystem 13.161
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 1.696
Then patterns cover at least 128 MiB in the guest's memory 2.119

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 20.808

Pattern coverage: 0.000% (0 MiB out of 1403 MiB reference memory)

After features/support/hooks.rb:339 3.611
After features/support/hooks.rb:108 0.000
4:14.836
Before features/support/hooks.rb:274 0.000
Before features/support/hooks.rb:281 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 3:44.366
And I prepare Tails for memory erasure tests 0.281
When I fill a 128 MiB file with a known pattern on the persistent filesystem 9.051
When I trigger shutdown 0.004
Then I find very few patterns in the guest's memory after 20 seconds 21.132

Pattern coverage: 0.000% (0 MiB out of 1429 MiB reference memory)

After features/support/hooks.rb:339 3.818
After features/support/hooks.rb:108 0.010