Project Number Date
test_Tails_ISO_7929-celluloid-flatpak 2 21 Apr 2026, 16:16

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 7:40.726 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.
19.028
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.017
Given I have started Tails from DVD without network and logged in 7.166
And I prepare Tails for memory erasure tests 0.385
When I start a process allocating 128 MiB of memory with a known pattern 2.217
# Since Debian Trixie we only get 99.610% coverage (tails#21012)
Then patterns cover at least 127 MiB in the guest's memory 2.132

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

When I kill the allocating process 0.205
Then I find very few patterns in the guest's memory after 5 seconds 6.920

Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)

After features/support/hooks.rb:331 0.793
After features/support/hooks.rb:100 0.000
18.157
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.996
And I prepare Tails for memory erasure tests 0.406
And I find very few patterns in the guest's memory 1.760

Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)

When I mount a 128 MiB tmpfs on "/mnt" and fill it with a known pattern 1.563
Then patterns cover at least 99% of the test FS size in the guest's memory 2.121

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

When I umount "/mnt" 0.441
Then I find very few patterns in the guest's memory after 3 seconds 4.868

Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)

After features/support/hooks.rb:331 0.564
After features/support/hooks.rb:100 0.000
33.525
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails from DVD without network and logged in 6.907
And I prepare Tails for memory erasure tests 0.376
When I plug and mount a 128 MiB USB drive with a vfat filesystem 5.399
Then I find very few patterns in the guest's memory 2.049

Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 2.689
Then patterns cover at least 75% of the test FS size in the guest's memory 2.383

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

When I umount the USB drive 0.844
Then I find very few patterns in the guest's memory after 3 seconds 4.954

Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)

# read cache
When I mount the USB drive again 0.154
And I read the content of the test FS 0.389
Then patterns cover at least 99% of the test FS size in the guest's memory 1.972

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

When I umount the USB drive 0.447
Then I find very few patterns in the guest's memory after 3 seconds 4.956

Pattern coverage: 0.000% (0 MiB out of 1482 MiB reference memory)

After features/support/hooks.rb:331 0.829
After features/support/hooks.rb:100 0.000
1:2.576
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.006
Given I have started Tails from DVD without network and logged in 7.586
And I prepare Tails for memory erasure tests 0.427
When I plug and mount a 128 MiB USB drive with an ext4 filesystem encrypted with password "asdf" 31.346
Then I find very few patterns in the guest's memory 2.330

Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)

# write cache
When I fill the USB drive with a known pattern 1.280
Then patterns cover at least 99% of the test FS size in the guest's memory 2.154

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

When I umount the USB drive 0.560
Then I find very few patterns in the guest's memory after 3 seconds 4.871

Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)

# read cache
When I mount the USB drive again 3.996
And I read the content of the test FS 0.288
Then patterns cover at least 99% of the test FS size in the guest's memory 2.044

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

When I umount the USB drive 0.413
Then I find very few patterns in the guest's memory after 3 seconds 5.275

Pattern coverage: 0.000% (0 MiB out of 1484 MiB reference memory)

After features/support/hooks.rb:331 0.832
After features/support/hooks.rb:100 0.000
45.304
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.007
Given I have started Tails from DVD without network and logged in 7.194
And I prepare Tails for memory erasure tests 0.354
When I fill a 128 MiB file with a known pattern on the root filesystem 13.292
# ensure the pattern is in memory due to tmpfs, not to disk cache
And I drop all kernel caches 2.017
Then patterns cover at least 128 MiB in the guest's memory 1.774

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 20.664

Pattern coverage: 0.000% (0 MiB out of 1491 MiB reference memory)

After features/support/hooks.rb:331 3.768
After features/support/hooks.rb:100 0.000
4:42.133
Before features/support/hooks.rb:266 0.000
Before features/support/hooks.rb:273 0.002
Given I have started Tails without network from a USB drive with a persistent partition enabled and logged in 4:9.676
And I prepare Tails for memory erasure tests 0.495
When I fill a 128 MiB file with a known pattern on the persistent filesystem 11.091
When I trigger shutdown 0.005
Then I find very few patterns in the guest's memory after 20 seconds 20.864

Pattern coverage: 0.000% (0 MiB out of 1493 MiB reference memory)

After features/support/hooks.rb:331 3.823
After features/support/hooks.rb:100 0.009