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Re: segfault in read_process_output() during vc-diff
From: |
Kenichi Handa |
Subject: |
Re: segfault in read_process_output() during vc-diff |
Date: |
Fri, 10 Nov 2006 11:30:02 +0900 |
User-agent: |
SEMI/1.14.3 (Ushinoya) FLIM/1.14.2 (Yagi-Nishiguchi) APEL/10.2 Emacs/22.0.50 (i686-pc-linux-gnu) MULE/5.0 (SAKAKI) |
In article <address@hidden>, "Tim Van Holder" <address@hidden> writes:
[...]
> p->decoding_carryover and p->encoding_carryover are both 0.
> I added some printfs ro read_process_output, in case they're of any help:
[...]
> ** (coding.c:6365) decode_coding_string() set coding->consumed to 0
> ** (coding.c:6384) decode_coding_string() set coding->consumed to 2374
> + decode_coding_string() on a 1058-byte unibyte string set
> coding->consumed to 2374
> + set carryover = nbytes - coding->consumed = 1058 - 2374 = -1316
> So it seems that decode_coding_string() arrives at an overly large
> coding->consumed when
> adding shrinked_bytes.
As decode_coding_string has not been changed for years, it's
very surprising that it contains such a bug. Could you try
the same operation while setting break point as this?
(gdb) br coding.c:6273
(gdb) cond NN to_byte==1058 <- NN is the index number of the break point
This stops execution at this line
if (require_decoding && coding->type != coding_type_ccl)
only when to_byte is 1058 (that should be the case that a
bug happens in decode_coding_string). When stopped, please
execute the code one line by one by `n' command while
checking the values of coding->consumed and shrinked_bytes.
---
Kenichi Handa
address@hidden
- Re: segfault in read_process_output() during vc-diff, (continued)
- Re: segfault in read_process_output() during vc-diff, Kim F. Storm, 2006/11/07
- Re: segfault in read_process_output() during vc-diff, Tim Van Holder, 2006/11/07
- Re: segfault in read_process_output() during vc-diff, Tim Van Holder, 2006/11/07
- Re: segfault in read_process_output() during vc-diff, Kenichi Handa, 2006/11/08
- Re: segfault in read_process_output() during vc-diff, Tim Van Holder, 2006/11/08
- Re: segfault in read_process_output() during vc-diff, Kenichi Handa, 2006/11/09
- Re: segfault in read_process_output() during vc-diff, Tim Van Holder, 2006/11/09
- Re: segfault in read_process_output() during vc-diff,
Kenichi Handa <=
- Re: segfault in read_process_output() during vc-diff, Tim Van Holder, 2006/11/10
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