Re: git blame crashes with internal error

[Alex Riesen <raa.lkml@gmail.com>]

Alex Riesen, Sun, Oct 14, 2007 18:37:02 +0200:
> Björn Steinbrink, Sun, Oct 14, 2007 16:36:28 +0200:
> > Hi Junio,
> > 
> > git blame just decided to crash on me, when I tried to use it while
> > resolving a merge conflict. Interesting is probably, that it crashes
> > when given the filename of a file that is not _directly_ affected by the
> > merge, but contains code that originates from a file that caused
> > conlicts.
> > 
> > Error message is:
> > fatal: internal error: ce_mode is 0
> > 
> 
> It is not crashing. It is just not handling unexpected situation
> properly:
> 
>     $ testcase.sh
>     ...
>     Switched to branch "foo"
>     CONFLICT (delete/modify): file1 deleted in HEAD and modified in master. Version master of file1 left in tree.
>     Automatic merge failed; fix conflicts and then commit the result.
>     fatal: internal error: ce_mode is 0
>     $ git ls-files --cached --stage
>     100644 72139f38953679bd19b3a7938c479d73c1aa7b59 1       file1
>     100644 3181f904ce3f9364b08524edd262a7a2ac766c9c 3       file1
>     100644 24e1ea80d6dcc497f60597b2a6d7cf65ecaa958a 0       file2
> 
> See? There is an unresolved merge.
> 
> The question is, what's the problem...
> 

FWIW, backtrace. I'm giving up for today. Anyone?

(gdb) bt
#0  0x080b6ac5 in die_builtin (err=0x80f3b92 "internal error: ce_mode is %o", 
    params=0xbfd91c34 "") at usage.c:24
#1  0x080b6b84 in die (err=0x80f3b92 "internal error: ce_mode is %o")
    at usage.c:76
#2  0x080a3883 in ce_match_stat_basic (ce=0xb7f6a00c, st=0xbfd91cb8)
    at read-cache.c:153
#3  0x080a398f in ie_match_stat (istate=0x81342e0, ce=0xb7f6a00c, 
    st=0xbfd91cb8, options=0) at read-cache.c:208
#4  0x080c87f3 in reuse_worktree_file (name=0x814c698 "file1", 
    sha1=0x814c668 "r\023\2378\2256y�\031��\223\214G\235s�{Y\230�024\b", 
    want_file=0) at diff.c:1499
#5  0x080c8a6f in diff_populate_filespec (s=0x814c668, size_only=1)
    at diff.c:1565
#6  0x080d0ab2 in is_exact_match (src=0x814c668, dst=0x814ca20, contents_too=1)
    at diffcore-rename.c:108
#7  0x080d13aa in diffcore_rename (options=0xbfd91edc) at diffcore-rename.c:335
#8  0x080ccaef in diffcore_std (options=0xbfd91edc) at diff.c:3120
#9  0x08054c33 in find_rename (sb=0xbfd921e8, parent=0x81377c0, 
    origin=0x814c5e0) at builtin-blame.c:427
#10 0x080563a3 in pass_blame (sb=0xbfd921e8, origin=0x814c5e0, opt=0)
    at builtin-blame.c:1216
#11 0x08056d09 in assign_blame (sb=0xbfd921e8, revs=0xbfd92068, opt=0)
    at builtin-blame.c:1501
#12 0x0805942a in cmd_blame (argc=2, argv=0xbfd92404, prefix=0x0)
    at builtin-blame.c:2414
#13 0x0804b7d8 in run_command (p=0x80fa8d0, argc=2, argv=0xbfd92404)
    at git.c:284
#14 0x0804b97a in handle_internal_command (argc=2, argv=0xbfd92404)
    at git.c:398
#15 0x0804ba52 in main (argc=2, argv=0xbfd92404) at git.c:435
(gdb)