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$Id: BUGS,v 1.41 2006/02/18 13:15:20 debug Exp $ |
KNOWN BUGS IN RELEASE 0.4.0 |
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If you experience a CRASH, then please run gdb on the core dump, do a back |
Because the MIPS emulation mode has been completely rewritten, and I |
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trace, and send it to me. |
haven't had much time to debug it, there are some known (serious) bugs: |
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Some of the known bugs are: |
o) Performance for non-R3000 MIPS emulation is very poor. |
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x) Floating point coprocessor stuff is buggy. Writing a new (portable) |
o) Although the new MIPS emulation system is stable enough to |
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framework for fp emulation is in the TODO. |
let many guest operating systems install, it is not stable |
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enough to let the emulator be compiled inside itself (in a |
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x) Linux/DECstation (Debian) oopses extremely often unless -U is used at |
guest OS) after an install, in all emulation modes. |
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run-time. I'm not sure yet why it bugs out. With -U, the risk is lower, |
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but not completely gone. _Maybe_ this is a bug in Linux. Why? Because the |
o) Ultrix 4.5 on R3000 in the emulator has problems with keyboard |
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oops message contains things like ANSI escape codes and characters in |
interrupts; Ultrix 4.2 works fine, though, and Ultrix 4.5 when |
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registers (including the pc and return address register); this looks like |
run with -C R4400. |
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a buffer overflow in the serial driver. (Another thing that gives weight |
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to this theory is that the serial driver in Linux is still being |
These problems will hopefully be corrected in future releases. |
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developed.) But this is just a guess. |
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x) Binary-translated 64-bit stuff checks to see if the top 32 bits are |
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all zeroes or all ones, and then uses 32-bit tables and such. This |
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is a bug. It should check the top 33 bits, not 32. (Alpha only, already |
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fixed for i386?) |
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x) NetBSD/arc 2.0 uses the ASC controller in a way which GXemul cannot yet |
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handle. (NetBSD 1.6.2 works ok.) (Possibly a problem in NetBSD itself, |
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http://mail-index.netbsd.org/source-changes/2005/11/06/0024.html suggests |
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that.) |
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