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1 | List of known bugs (certainly very incomplete) |
2 | ---------------------------------------------- | |
3 | ||
d45d715a | 4 | Time-stamp: <00/07/14 11:39:22 aj> |
c57abfa7 UD |
5 | |
6 | This following list contains those bugs which I'm aware of. Please | |
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7 | make sure that bugs you report are not listed here. If you can fix one |
8 | of these bugs/limitations I'll certainly be glad to receive a patch. | |
c57abfa7 | 9 | |
bc9f6000 | 10 | Another source of information about bugs is the problem data base of the |
8f2ece69 | 11 | GNU project. There is an easy to use WWW interface available at |
bc9f6000 | 12 | |
af6f3906 | 13 | http://www-gnats.gnu.org:8080/cgi-bin/wwwgnats.pl |
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14 | |
15 | I would appreciate it very much if you could verify the problem was not | |
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16 | reported before by looking through the database. To make the information |
17 | in this database as useful as possible please report bugs always using the | |
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18 | `glibcbug' shell script which gets installed with GNU libc. Before reporting |
19 | a bug please check the FAQ since it discusses also a lot of problematic | |
20 | situations. | |
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21 | |
22 | ||
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23 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
24 | ||
25 | Severity: [ *] to [***] | |
c57abfa7 | 26 | |
a673fbcb | 27 | [ **] Closing shared objects in statically linked binaries most of the |
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28 | times leads to crashes during the dlopen(). Hard to fix. |
29 | ||
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30 | [ **] There are problems with signal handling when using LinuxThreads. |
31 | ||
4ad1f026 UD |
32 | [ **] The RPC code is not 64 bit clean. This is getting slowly fixed |
33 | but expect incompatible changes on 64 bit platforms like Alpha. | |
34 | ||
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35 | [ *] The precision of the `sinhl' and/or `asinhl' function do not seem |
36 | to be the best. | |
37 | ||
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38 | [ *] On Linux, there should be a way to prevent defining the symbol |
39 | NGROUPS_MAX in the <linux/limits.h> header file. In glibc it | |
40 | is defined in <posix1_lim.h> which must not make the other | |
41 | symbols in <linux/limits.h> available. | |
42 | [PR libc/140] | |
43 | ||
d111572f UD |
44 | [ *] The libm-ieee `gamma' function gives wrong results (at least for |
45 | -0.5). | |
46 | ||
47 | [ *] The libm-ieee `scalb' function gives wrong results for | |
48 | non-integral second parameters. | |
fe0ec73e | 49 | |
a673fbcb UD |
50 | [ *] Collation symbol and equivalence class handling in regex are not |
51 | yet 100% correct. | |
52 | - [. .] at end of a range does not work | |
53 | - [. .] and [= =] do not handle collating symbols (where a symbol | |
54 | stands for multiple character) and multibyte character in | |
55 | general not correctly. | |
56 | ||
57 | This is *extremely* hard to fix since regex has to be rewritten | |
58 | completely. | |
59 | ||
cfd14df5 | 60 | [ *] The regex implementation has various other problems, like limitations |
d45d715a | 61 | of the expression size etc. [PR libc/1570, PR libc/1777] |
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62 | |
63 | None of these can be fixed without a rewrite. | |
64 | ||
cf365734 UD |
65 | [ *] Several (most?) collation specifications are broken. The code which |
66 | is currently there is in most cases inherited from the originial | |
67 | author (in case there is a LC_COLLATE specification in the locale | |
68 | file) or is defined using the default (if iso14651_t1 is included). | |
69 | ||
70 | In any case we are missing information to correct the specification. | |
71 | If you find the specification for your language be faulty please | |
72 | send a report with instruction on what to fix. You don't have to | |
73 | fix the specification yourself. | |
74 | ||
75 | The way it finally should look like (if the generic specification | |
76 | is not correct) can be seen in the sv_SE file. Quite a few changes | |
77 | on top of the generic specification can be made without duplication | |
78 | of the whole LC_COLLATE description. | |
79 | ||
bc9f6000 UD |
80 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
81 | Ulrich Drepper | |
82 | drepper@cygnus.com |