[WORKSHEET BASE] - [case2_deep_miss_worksheet.md](https://github.com/raikrahul/what-happens-when-open-is-called/blob/main/kernel/user/stage3/case2_deep_miss/worksheets/case2_deep_miss_worksheet.md) [WORKSHEET AXIOM] - [case2_deep_miss_worksheet_axiom.md](https://github.com/raikrahul/what-happens-when-open-is-called/blob/main/kernel/user/stage3/case2_deep_miss/worksheets/case2_deep_miss_worksheet_axiom.md) [WORKSHEET AXIOM HARD] - [case2_deep_miss_worksheet_axiom_hard.md](https://github.com/raikrahul/what-happens-when-open-is-called/blob/main/kernel/user/stage3/case2_deep_miss/worksheets/case2_deep_miss_worksheet_axiom_hard.md) [REQUIRED HAND TASKS] 1. Verify entry/ret pair counts. 2. Verify pointer class counts. 3. Record contradiction lines and expected fixes. 4. Cross-compare with one adjacent case. <!-- AUTO-EMBED START --> [AUTO] case=case2 [USERDIR] kernel/user/stage3/case2_deep_miss ================================================================================ [EMBED] case2_deep_miss_worksheet.md [SOURCE] kernel/user/stage3/case2_deep_miss/worksheets/case2_deep_miss_worksheet.md ================================================================================ # Worksheet: case2_deep_miss - Generated: `2026-02-15T01:16:11` - Userspace: `kernel/user/stage3/case2_deep_miss/case2_deep_miss.c` - Driver: `kernel/drivers/stage3/case2_deep_miss/trace_case2_deep_miss/trace_case2_deep_miss.c` - Module: `trace_case2_deep_miss` - Binary: `kernel/user/stage3/case2_deep_miss/case2_deep_miss.out` - Status: `pass_probe_hits` ## Probe Totals - `do_filp_open.entry`: 9 - `do_filp_open.ret`: 9 - `__d_alloc.entry`: 1 - `__d_alloc.ret`: 1 - `ERR_PTR(-ENOENT)` returns: 7 - non-error pointer returns: 2 ## Full Function Trace Steps (Pseudo-Debugger Style) - #1. call=`do_filp_open.entry` source_line=`dmesg:2` raw=`[53103.655448] [trace_case2_deep_miss] do_filp_open.entry pid=269729 comm=case2_deep_miss dfd=4294967196 pathname=ffff898e819b1000 op=ffffcc9700fc7c14` - #2. call=`do_filp_open.ret` source_line=`dmesg:3` raw=`[53103.655475] [trace_case2_deep_miss] do_filp_open.ret pid=269729 comm=case2_deep_miss ret=fffffffffffffffe` - #3. call=`do_filp_open.entry` source_line=`dmesg:4` raw=`[53103.655493] [trace_case2_deep_miss] do_filp_open.entry pid=269729 comm=case2_deep_miss dfd=4294967196 pathname=ffff898e819b1000 op=ffffcc9700fc7c04` - #4. call=`do_filp_open.ret` source_line=`dmesg:5` raw=`[53103.655507] [trace_case2_deep_miss] do_filp_open.ret pid=269729 comm=case2_deep_miss ret=fffffffffffffffe` - #5. call=`do_filp_open.entry` source_line=`dmesg:6` raw=`[53103.655522] [trace_case2_deep_miss] do_filp_open.entry pid=269729 comm=case2_deep_miss dfd=4294967196 pathname=ffff898e819b1000 op=ffffcc9700fc7e44` - #6. call=`do_filp_open.ret` source_line=`dmesg:7` raw=`[53103.655536] [trace_case2_deep_miss] do_filp_open.ret pid=269729 comm=case2_deep_miss ret=fffffffffffffffe` - #7. call=`do_filp_open.entry` source_line=`dmesg:8` raw=`[53103.655554] [trace_case2_deep_miss] do_filp_open.entry pid=269729 comm=case2_deep_miss dfd=4294967196 pathname=ffff898e819b1000 op=ffffcc9700fc7c84` - #8. call=`do_filp_open.ret` source_line=`dmesg:9` raw=`[53103.655565] [trace_case2_deep_miss] do_filp_open.ret pid=269729 comm=case2_deep_miss ret=fffffffffffffffe` - #9. call=`do_filp_open.entry` source_line=`dmesg:10` raw=`[53103.655573] [trace_case2_deep_miss] do_filp_open.entry pid=269729 comm=case2_deep_miss dfd=4294967196 pathname=ffff898e819b1000 op=ffffcc9700fc7e14` - #10. call=`do_filp_open.ret` source_line=`dmesg:11` raw=`[53103.655583] [trace_case2_deep_miss] do_filp_open.ret pid=269729 comm=case2_deep_miss ret=fffffffffffffffe` - #11. call=`do_filp_open.entry` source_line=`dmesg:12` raw=`[53103.655591] [trace_case2_deep_miss] do_filp_open.entry pid=269729 comm=case2_deep_miss dfd=4294967196 pathname=ffff898e819b1000 op=ffffcc9700fc7ca4` - #12. call=`do_filp_open.ret` source_line=`dmesg:13` raw=`[53103.655601] [trace_case2_deep_miss] do_filp_open.ret pid=269729 comm=case2_deep_miss ret=fffffffffffffffe` - #13. call=`do_filp_open.entry` source_line=`dmesg:14` raw=`[53103.655610] [trace_case2_deep_miss] do_filp_open.entry pid=269729 comm=case2_deep_miss dfd=4294967196 pathname=ffff898e819b1000 op=ffffcc9700fc7d34` - #14. call=`do_filp_open.ret` source_line=`dmesg:15` raw=`[53103.655623] [trace_case2_deep_miss] do_filp_open.ret pid=269729 comm=case2_deep_miss ret=ffff898ea6d10e40` - #15. call=`do_filp_open.entry` source_line=`dmesg:16` raw=`[53103.655665] [trace_case2_deep_miss] do_filp_open.entry pid=269729 comm=case2_deep_miss dfd=4294967196 pathname=ffff898e819b1000 op=ffffcc9700fc7dc4` - #16. call=`do_filp_open.ret` source_line=`dmesg:17` raw=`[53103.655679] [trace_case2_deep_miss] do_filp_open.ret pid=269729 comm=case2_deep_miss ret=ffff898ea6d10240` - #17. call=`do_filp_open.entry` source_line=`dmesg:18` raw=`[53103.656245] [trace_case2_deep_miss] do_filp_open.entry pid=269729 comm=case2_deep_miss dfd=4294967196 pathname=ffff898e819b1000 op=ffffcc9700fc7d14` - #18. call=`__d_alloc.entry` source_line=`dmesg:19` raw=`[53103.656264] [trace_case2_deep_miss] __d_alloc.entry pid=269729 comm=case2_deep_miss sb=ffff898e906aa000 name_qstr=ffffcc9700fc7be0` - #19. call=`__d_alloc.ret` source_line=`dmesg:20` raw=`[53103.656274] [trace_case2_deep_miss] __d_alloc.ret pid=269729 comm=case2_deep_miss dentry=ffff8990e1427780` - #20. call=`do_filp_open.ret` source_line=`dmesg:21` raw=`[53103.656295] [trace_case2_deep_miss] do_filp_open.ret pid=269729 comm=case2_deep_miss ret=fffffffffffffffe` ## Per-Probe Pair Checks - Pair A: `do_filp_open.entry` -> `do_filp_open.ret` - Count A entry=9 ret=9 - Pair B: `__d_alloc.entry` -> `__d_alloc.ret` - Count B entry=1 ret=1 ## Raw Artifacts - report: `kernel/user/stage3/case2_deep_miss/reports/case2_deep_miss_trace_report.md` - dmesg: `kernel/user/stage3/case2_deep_miss/reports/case2_deep_miss_dmesg.txt` <!-- AUTO-EMBED END -->