[WORKSHEET BASE] - [case7_symlink_fast_worksheet.md](https://github.com/raikrahul/what-happens-when-open-is-called/blob/main/kernel/user/stage3/case7_symlink_fast/worksheets/case7_symlink_fast_worksheet.md) [WORKSHEET AXIOM] - [case7_symlink_fast_worksheet_axiom.md](https://github.com/raikrahul/what-happens-when-open-is-called/blob/main/kernel/user/stage3/case7_symlink_fast/worksheets/case7_symlink_fast_worksheet_axiom.md) [WORKSHEET AXIOM HARD] - [case7_symlink_fast_worksheet_axiom_hard.md](https://github.com/raikrahul/what-happens-when-open-is-called/blob/main/kernel/user/stage3/case7_symlink_fast/worksheets/case7_symlink_fast_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=case7 [USERDIR] kernel/user/stage3/case7_symlink_fast ================================================================================ [EMBED] case7_symlink_fast_worksheet.md [SOURCE] kernel/user/stage3/case7_symlink_fast/worksheets/case7_symlink_fast_worksheet.md ================================================================================ # Worksheet: case7_symlink_fast - Generated: `2026-02-15T01:16:11` - Userspace: `kernel/user/stage3/case7_symlink_fast/case7_symlink_fast.c` - Driver: `kernel/drivers/stage3/case7_symlink_fast/trace_case7_symlink_fast/trace_case7_symlink_fast.c` - Module: `trace_case7_symlink_fast` - Binary: `kernel/user/stage3/case7_symlink_fast/case7_symlink_fast.out` - Status: `pass_probe_hits` ## Probe Totals - `do_filp_open.entry`: 9 - `do_filp_open.ret`: 9 - `__d_alloc.entry`: 0 - `__d_alloc.ret`: 0 - `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=`[53114.346712] [trace_case7_symlink_fast] do_filp_open.entry pid=271044 comm=case7_symlink_f dfd=4294967196 pathname=ffff898e8c888000 op=ffffcc9702433ba4` - #2. call=`do_filp_open.ret` source_line=`dmesg:3` raw=`[53114.346734] [trace_case7_symlink_fast] do_filp_open.ret pid=271044 comm=case7_symlink_f ret=fffffffffffffffe` - #3. call=`do_filp_open.entry` source_line=`dmesg:4` raw=`[53114.346749] [trace_case7_symlink_fast] do_filp_open.entry pid=271044 comm=case7_symlink_f dfd=4294967196 pathname=ffff898e8c888000 op=ffffcc9702433e14` - #4. call=`do_filp_open.ret` source_line=`dmesg:5` raw=`[53114.346760] [trace_case7_symlink_fast] do_filp_open.ret pid=271044 comm=case7_symlink_f ret=fffffffffffffffe` - #5. call=`do_filp_open.entry` source_line=`dmesg:6` raw=`[53114.346773] [trace_case7_symlink_fast] do_filp_open.entry pid=271044 comm=case7_symlink_f dfd=4294967196 pathname=ffff898e8c888000 op=ffffcc9702433a94` - #6. call=`do_filp_open.ret` source_line=`dmesg:7` raw=`[53114.346784] [trace_case7_symlink_fast] do_filp_open.ret pid=271044 comm=case7_symlink_f ret=fffffffffffffffe` - #7. call=`do_filp_open.entry` source_line=`dmesg:8` raw=`[53114.346800] [trace_case7_symlink_fast] do_filp_open.entry pid=271044 comm=case7_symlink_f dfd=4294967196 pathname=ffff898e8c888000 op=ffffcc9702433d94` - #8. call=`do_filp_open.ret` source_line=`dmesg:9` raw=`[53114.346808] [trace_case7_symlink_fast] do_filp_open.ret pid=271044 comm=case7_symlink_f ret=fffffffffffffffe` - #9. call=`do_filp_open.entry` source_line=`dmesg:10` raw=`[53114.346815] [trace_case7_symlink_fast] do_filp_open.entry pid=271044 comm=case7_symlink_f dfd=4294967196 pathname=ffff898e8c888000 op=ffffcc9702433ab4` - #10. call=`do_filp_open.ret` source_line=`dmesg:11` raw=`[53114.346823] [trace_case7_symlink_fast] do_filp_open.ret pid=271044 comm=case7_symlink_f ret=fffffffffffffffe` - #11. call=`do_filp_open.entry` source_line=`dmesg:12` raw=`[53114.346830] [trace_case7_symlink_fast] do_filp_open.entry pid=271044 comm=case7_symlink_f dfd=4294967196 pathname=ffff898e8c888000 op=ffffcc9702433c64` - #12. call=`do_filp_open.ret` source_line=`dmesg:13` raw=`[53114.346838] [trace_case7_symlink_fast] do_filp_open.ret pid=271044 comm=case7_symlink_f ret=fffffffffffffffe` - #13. call=`do_filp_open.entry` source_line=`dmesg:14` raw=`[53114.346845] [trace_case7_symlink_fast] do_filp_open.entry pid=271044 comm=case7_symlink_f dfd=4294967196 pathname=ffff898e8c888000 op=ffffcc9702433d84` - #14. call=`do_filp_open.ret` source_line=`dmesg:15` raw=`[53114.346856] [trace_case7_symlink_fast] do_filp_open.ret pid=271044 comm=case7_symlink_f ret=ffff898fe26d33c0` - #15. call=`do_filp_open.entry` source_line=`dmesg:16` raw=`[53114.346937] [trace_case7_symlink_fast] do_filp_open.entry pid=271044 comm=case7_symlink_f dfd=4294967196 pathname=ffff898e8c888000 op=ffffcc9702433dc4` - #16. call=`do_filp_open.ret` source_line=`dmesg:17` raw=`[53114.346952] [trace_case7_symlink_fast] do_filp_open.ret pid=271044 comm=case7_symlink_f ret=ffff898ebe5ddcc0` - #17. call=`do_filp_open.entry` source_line=`dmesg:18` raw=`[53114.347484] [trace_case7_symlink_fast] do_filp_open.entry pid=271044 comm=case7_symlink_f dfd=4294967196 pathname=ffff898e8c888000 op=ffffcc9702433ad4` - #18. call=`do_filp_open.ret` source_line=`dmesg:19` raw=`[53114.347500] [trace_case7_symlink_fast] do_filp_open.ret pid=271044 comm=case7_symlink_f 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=0 ret=0 ## Raw Artifacts - report: `kernel/user/stage3/case7_symlink_fast/reports/case7_symlink_fast_trace_report.md` - dmesg: `kernel/user/stage3/case7_symlink_fast/reports/case7_symlink_fast_dmesg.txt` <!-- AUTO-EMBED END -->