Unwind fails on Win32/x86
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| SBCL |
Fix Released
|
Medium
|
Unassigned | ||
Bug Description
The attached test case fails on Win32/x86 (on both SBCL's master branch and the unofficial Windows branch, but not on Win32/amd64). Presumably amd64 is unaffected because it doesn't do anything fancy with SEH and RtlUnwind at all.
The problem is a regression introduced somewhere between SBCL 1.0 and 1.0.2, and looking at changes in those versions, likely/possibly in 1.0.0.19 or 1.0.1.24.
Possible approaches:
1. just remove all our SEH tricks -- doing so would be a simplification and would bring x86 in line with amd64
2. Or is this the "well-known" ordering problem? If so, how can we fix it?
Thanks to Elliott Slaughter for the report.
-------
(load "test-form-1.lisp")
;;; [... legitimate warnings pruned from output... ]
debugger invoked on a SIMPLE-ERROR in thread
#<THREAD "main thread" RUNNING {23ED1979}>:
An exception occurred in context #.(SB-SYS:INT-SAP #X0022E270): #.(SB-SYS:INT-
SAP #X0022E3A0). (Exception code: 3221225513)
Type HELP for debugger help, or (SB-EXT:EXIT) to exit from SBCL.
| David Lichteblau (david-lichteblau) wrote | #1 |
| Changed in sbcl: | |
| status: | New → In Progress |
| assignee: | nobody → Paul Khuong (pvk) |
| importance: | Undecided → Medium |
| Paul Khuong (pvk) wrote | #2 |
| Changed in sbcl: | |
| status: | In Progress → Fix Committed |
| assignee: | Paul Khuong (pvk) → nobody |
| Paul Khuong (pvk) wrote | #3 |
| Changed in sbcl: | |
| status: | Fix Committed → Fix Released |
Should be fixed in ba39d16 (Pack (mostly) stack TNs according to lexical scope information).