This is a kernel space counterpart of Ubiquitous Component (Volume 4, page 94) pattern. Such a component (especially when it is Top Module, Volume 6, page 62) can be a sign of Wait Chain(s) (Volume 1, page 482) and Blocking Module (Volume 6, page 54) and if it is present in the same process names - a sign of Distributed Wait Chain (page 182).
0: kd> !stacks 0 ModuleA Proc.Thread .Thread Ticks ThreadState Blocker [fffffa800e673b30 svchost.exe] 534.006240 fffffa801388f5f0 fffd41d9 Blocked ModuleA+0x12468
[fffffa800e705b30 svchost.exe] 630.000e14 fffffa800edacb50 fffdcf7a Blocked ModuleA+0x12468 630.000f04 fffffa8012c2fb50 fffdcf49 Blocked ModuleA+0x12468 630.006610 fffffa80134f5b50 fffdcf46 Blocked ModuleA+0x12468 630.001cfc fffffa800f55a2d0 fffdcf44 Blocked ModuleA+0x12468 630.003db8 fffffa80121f1540 fffdcf43 Blocked ModuleA+0x12468 630.000b9c fffffa80133d1780 fffdcf3c Blocked ModuleA+0x12468 630.0041c4 fffffa8013c77b50 fffdcf43 Blocked ModuleA+0x12468 630.00641c fffffa8012476b50 fffdcf43 Blocked ModuleA+0x12468 630.006424 fffffa8013207b50 fffdcf40 Blocked ModuleA+0x12468 630.002fcc fffffa80128f9060 fffdcf3e Blocked ModuleA+0x12468 630.003de8 fffffa80139edb50 fffdcf3d Blocked ModuleA+0x12468 630.0062c4 fffffa800f5ff2d0 fffdcf3c Blocked ModuleA+0x12468 630.0065e8 fffffa80139dcb50 fffdcf3b Blocked ModuleA+0x12468 630.004524 fffffa8011e51b50 fffdcf3a Blocked ModuleA+0x12468 630.004570 fffffa801346b060 fffdcf39 Blocked ModuleA+0x12468 630.00173c fffffa8010b99b50 fffdcf39 Blocked ModuleA+0x12468
[fffffa800f63db30 iexplore.exe] 24c4.0024c8 fffffa800fe854e0 fffcb6cf Blocked ModuleA+0x12468 [fffffa8010b9ab30 explorer.exe] 2b64.0043d0 fffffa8012e8ab00 fffd9095 Blocked ModuleA+0x12468 [fffffa800fe55060 explorer.exe] 2c80.002e58 fffffa8012e75060 fffba7af Blocked ModuleA+0x12468 [fffffa8010c54b30 iexplore.exe] 2e3c.002e98 fffffa8010c75620 fffcbb7f Blocked ModuleA+0x12468 [fffffa80111c3720 iexplore.exe] 32d8.003230 fffffa80111b1b00 fffd41d9 Blocked ModuleA+0x12468 [fffffa80110cb690 iexplore.exe] 2e74.002854 fffffa8011121b00 fffbe8a4 Blocked ModuleA+0x12468 [fffffa801146cb30 OUTLOOK.EXE] 35cc.0035e8 fffffa8013831b00 fffaf33a Blocked ModuleA+0x12468 [fffffa80105a5640 OUTLOOK.EXE] 3858.00385c fffffa801133ab00 fffd3691 Blocked ModuleA+0x12468 [fffffa8011998060 explorer.exe] 3d70.004a0c fffffa80139ddb00 fffd0482 Blocked ModuleA+0x12468 [fffffa8010ff5850 OUTLOOK.EXE] 3540.000458 fffffa8011052b00 fffbd007 Blocked ModuleA+0x12468 [fffffa8011d3d060 OUTLOOK.EXE] 49f8.0049fc fffffa8011c78060 fffdbbf9 Blocked ModuleA+0x12468 [fffffa801241b060 OUTLOOK.EXE] 4888.005af0 fffffa8012e8eab0 fffae442 Blocked ModuleA+0x12468 4888.003d24 fffffa800eca7b00 fffae443 Blocked ModuleA+0x12468 [fffffa8012687b30 explorer.exe] 5048.0051fc fffffa801129cb00 fffca8bf Blocked ModuleA+0x12468 [fffffa8011c1e060 OUTLOOK.EXE] 52c4.00117c fffffa80130f8710 fffaa157 Blocked ModuleA+0x12468 52c4.0045fc fffffa801374f060 fffaa15e Blocked ModuleA+0x12468 [fffffa8011c42b30 explorer.exe] 5898.0001ec fffffa80137a1b00 fffd8da0 Blocked ModuleA+0x12468 [fffffa8012e04b30 OUTLOOK.EXE] 5a74.004954 fffffa8012e05060 fffa9ff8 Blocked ModuleA+0x12468 [fffffa8010908b30 spoolsv.exe] 2724.004190 fffffa8011ea1060 fffdcafb Blocked ModuleA+0x12468 [fffffa801206eb30 WerFault.exe] 3e50.005424 fffffa8013c5eb00 fffdcf39 Blocked ModuleA+0x12468 [fffffa800f8cf2a0 WerFault.exe] 9f4.00570c fffffa8013c8ab00 fffdca9f Blocked ModuleA+0x12468 [fffffa8013af1060 WerFault.exe] 3c74.002b80 fffffa8013c5c060 fffd9dc8 Blocked ModuleA+0x12468 [fffffa800f8053a0 WINWORD.EXE] 3dd0.0066a8 fffffa800ce618c0 fffd7c02 Blocked ModuleA+0x12468 [fffffa8010b66b30 WINWORD.EXE] 62a4.001934 fffffa801368c430 fffd7ce7 Blocked ModuleA+0x12468 [fffffa80141dc060 WerFault.exe] 17d0.0052e4 fffffa801347a060 fffd57b8 Blocked ModuleA+0x12468 [fffffa8012629760 WerFault.exe] 621c.005b64 fffffa8011e395d0 fffc8dc2 Blocked ModuleA+0x12468 [fffffa80131a75d0 explorer.exe] 4884.002b34 fffffa8013dc3b00 fffd67bc Blocked ModuleA+0x12468 [...] Threads Processed: 5948