[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [sparc] Unassigned mem read access on writing?
From: |
Artyom Tarasenko |
Subject: |
[Qemu-devel] [sparc] Unassigned mem read access on writing? |
Date: |
Fri, 5 Nov 2010 18:48:36 +0100 |
Trying to boot Solaris 2.1 I get the following error message:
Unassigned mem read access of 1 byte to ffffffffffff0768 from f0014768
qemu: fatal: Trap 0x29 while interrupts disabled, Error state
pc: f0014768 npc: f001476c
Looks like a read access to a non-mapped memory (the NF-bit is 0). But
where can it happen?
The code:
0xf001475c: mov 0x200, %o4
=> 0xf0014760: lda [ %o4 ] #ASI_N, %o3
0xf0014764: sta %o2, [ %o4 ] #ASI_N
0xf0014768: sta %g0, [ %o0 ] (3)
0xf001476c: cmp %o2, %o3
0xf0014770: bne 0xf001477c
End of assembler dump.
(gdb) stepi
0xf0014764 in ?? ()
(gdb) info registers o2
o2 0x28a 650
(gdb) stepi
Remote connection closed
(gdb)
Any ideas how to debug?
--
Regards,
Artyom Tarasenko
solaris/sparc under qemu blog: http://tyom.blogspot.com/
- [Qemu-devel] [sparc] Unassigned mem read access on writing?,
Artyom Tarasenko <=