1 |
$Id: BUGS,v 1.33 2005/06/04 12:35:14 debug Exp $ |
$Id: BUGS,v 1.37 2005/11/13 12:34:02 debug Exp $ |
2 |
|
|
3 |
|
Hm. This file is pretty old. Some of these are still valid, though. |
4 |
|
|
5 |
Serious bugs: |
=================================================================== |
6 |
|
|
7 |
x) An unknown math coprocessor bug. (Ultrix' dxclock sometimes looks |
x) An unknown math coprocessor bug. (Ultrix' dxclock sometimes looks |
8 |
weird.) |
weird.) |
9 |
|
|
10 |
x) Enabling cache emulation (./configure --enable-caches) triggers bugs. |
x) Enabling cache emulation (./configure --enable-caches) triggers bugs. |
11 |
|
|
|
x) Compiling with certain versions of gcc and -O3 optimization on i386 |
|
|
triggers bugs. I'm not sure whether they are in gcc or in GXemul. |
|
|
|
|
12 |
x) Linux/DECstation (Debian) oopses extremely often unless -U is used |
x) Linux/DECstation (Debian) oopses extremely often unless -U is used |
13 |
at run-time. I'm not sure yet why it bugs out. With -U, the risk is |
at run-time. I'm not sure yet why it bugs out. With -U, the risk is |
14 |
lower, but not completely gone. _Maybe_ this is a bug in Linux. Why? |
lower, but not completely gone. _Maybe_ this is a bug in Linux. Why? |
18 |
that gives weight to this theory is that the serial driver in Linux is |
that gives weight to this theory is that the serial driver in Linux is |
19 |
still being developed.) But this is just a guess. |
still being developed.) But this is just a guess. |
20 |
|
|
21 |
x) bintrans bugs. (For example, NetBSD/sgimips for IP22/24 hangs during |
o) Hardware device ticks are done at cycle specific intervals, not |
|
boot with bintrans enabled.) |
|
|
|
|
|
|
|
|
Less serious bugs / issues: |
|
|
|
|
|
o) hardware device ticks are done at cycle specific intervals, not |
|
22 |
instruction intervals, so sometimes a fraction of a cycle can be |
instruction intervals, so sometimes a fraction of a cycle can be |
23 |
"lost". |
"lost". |
24 |
|
|
25 |
o) running Linux/DECstation 2.4.26 with no scsi disks attached causes |
o) Running Linux/DECstation 2.4.26 with no scsi disks attached causes |
26 |
a warning message to be printed by Linux. |
a warning message to be printed by Linux. |
27 |
|
|
28 |
o) UDP packets that are too large are not handled well by the Lance device. |
o) UDP packets that are too large are not handled well by the Lance device. |
31 |
how to solve this; the code works on both little-endian (Alpha) and |
how to solve this; the code works on both little-endian (Alpha) and |
32 |
big-endian (UltraSPARC) X-servers...) |
big-endian (UltraSPARC) X-servers...) |
33 |
|
|
34 |
o) bintranslated 64-bit stuff checks to see if the top 32 bits are |
o) Binary-translated 64-bit stuff checks to see if the top 32 bits are |
35 |
all zeroes or all ones, and then uses 32-bit tables and such. This |
all zeroes or all ones, and then uses 32-bit tables and such. This |
36 |
is a bug. It should check the top 33 bits, not 32. (Alpha only, already |
is a bug. It should check the top 33 bits, not 32. (Alpha only, already |
37 |
fixed for i386?) |
fixed for i386?) |