While testing out an amd au1500 based board I have been getting " do_ri " exceptions that always occur in the cache flushing routines. More often than not in blast_icache_32().
So far this has mainly happened after running the board for days on end while running multiple telnet sessions to it. It has sometimes ( quite rarely ) happened after a few hours to a day of multiple telnet session use.
If left to run for days on end the the do_ri always occurs in a lcd daemon we have for updating a simple 40 row by 2 column I2c dispay and the oops trace is :
Reading Oops report from the terminal
$0 : 00000000 1000fc01 7fff76e0 ffffffe0 7fff76e0 8034880c ffffffff 00000000
$8 : ffffffff ffffffff 00000000 00000002 80313ae4 0005800b 00000340 849dbe20
$16: 7fff76d8 7fff7ea4 00416050 0000000e 8437ff30 00000000 8436da5c 8437e3d0
$24: 00000000 2afb0900 8437e000 8437fe30 8437ff08 80105510
Hi : 00000000
Lo : 00000001
epc : 8010cd50 Not tainted
Using defaults from ksymoops -t elf32-tradlittlemips -a mips:3000
Status: 1000fc03
Cause : 00800028
Process lcd (pid: 106, stackpage=8437e000)
Stack: 1000fc01 00000001 00000000 00000001 0000000e 00000080 00000000
00000000 00000000 00000003 00000000 0000000a 00000001 802feda0 8437e000
802fe920 84cec000 00000000 802fe920 803487e0 00000000 2ab34390 00000010
80156614 8437e000 8437feb8 8437feb8 80104a98 1000fc03 b3b77d7a 000006c5
00000021 00801000 8010f690 ffffffff 10015d08 7fff76e8 7fff76f0 1000fc01
00000000 ...
Call Trace: [<80156614>] [<80104a98>] [<8010f690>] [<80104aa4>] [<801097a0>]
[<80162038>]
Code: bc550000 00031823 00832024 <bc900000> 03e00008 00000000 3c028035 8c42881c 27bdffe8
$0 : 00000000 1000fc01 7fff76e0 ffffffe0 7fff76e0 8034880c ffffffff 00000000
$8 : ffffffff ffffffff 00000000 00000002 80313ae4 0005800b 00000340 849dbe20
$16: 7fff76d8 7fff7ea4 00416050 0000000e 8437ff30 00000000 8436da5c 8437e3d0
$24: 00000000 2afb0900 8437e000 8437fe30 8437ff08 80105510
Hi : 00000000
Lo : 00000001
epc : 8010cd50 Not tainted
Using defaults from ksymoops -t elf32-tradlittlemips -a mips:3000
Status: 1000fc03
Cause : 00800028
Process lcd (pid: 106, stackpage=8437e000)
Stack: 1000fc01 00000001 00000000 00000001 0000000e 00000080 00000000
00000000 00000000 00000003 00000000 0000000a 00000001 802feda0 8437e000
802fe920 84cec000 00000000 802fe920 803487e0 00000000 2ab34390 00000010
80156614 8437e000 8437feb8 8437feb8 80104a98 1000fc03 b3b77d7a 000006c5
00000021 00801000 8010f690 ffffffff 10015d08 7fff76e8 7fff76f0 1000fc01
00000000 ...
Call Trace: [<80156614>] [<80104a98>] [<8010f690>] [<80104aa4>] [<801097a0>]
[<80162038>]
Code: bc550000 00031823 00832024 <bc900000> 03e00008 00000000 3c028035 8c42881c 27bdffe8
>>$5; 8034880c <cpu_data+2c/80>
>>$12; 80313ae4 <contig_page_data+0/3ac>
>>$31; 80105510 <do_signal+2a8/df8>
>>PC; 8010cd50 <r4k_flush_cache_sigtramp+24/30> <=====
Trace; 80156614 <iput+128/2b4>
Trace; 80104a98 <_sys_rt_sigsuspend+164/180>
Trace; 8010f690 <schedule+2d8/4fc>
Trace; 80104aa4 <_sys_rt_sigsuspend+170/180>
Trace; 801097a0 <stack_done+1c/38>
Trace; 80162038 <create_proc_entry+58/d0>
Trace; 80104a98 <_sys_rt_sigsuspend+164/180>
Trace; 8010f690 <schedule+2d8/4fc>
Trace; 80104aa4 <_sys_rt_sigsuspend+170/180>
Trace; 801097a0 <stack_done+1c/38>
Trace; 80162038 <create_proc_entry+58/d0>
Code; 8010cd44 <r4k_flush_cache_sigtramp+18/30>
00000000 <_PC>:
Code; 8010cd44 <r4k_flush_cache_sigtramp+18/30>
0: bc550000 0xbc550000
Code; 8010cd48 <r4k_flush_cache_sigtramp+1c/30>
4: 00031823 negu v1,v1
Code; 8010cd4c <r4k_flush_cache_sigtramp+20/30>
8: 00832024 and a0,a0,v1
Code; 8010cd50 <r4k_flush_cache_sigtramp+24/30> <=====
c: bc900000 0xbc900000 <=====
Code; 8010cd54 <r4k_flush_cache_sigtramp+28/30>
10: 03e00008 jr ra
Code; 8010cd58 <r4k_flush_cache_sigtramp+2c/30>
14: 00000000 nop
Code; 8010cd5c <r4k_flush_icache_all+0/3c>
18: 3c028035 lui v0,0x8035
Code; 8010cd60 <r4k_flush_icache_all+4/3c>
1c: 8c42881c lw v0,-30692(v0)
Code; 8010cd64 <r4k_flush_icache_all+8/3c>
20: 27bdffe8 addiu sp,sp,-24
00000000 <_PC>:
Code; 8010cd44 <r4k_flush_cache_sigtramp+18/30>
0: bc550000 0xbc550000
Code; 8010cd48 <r4k_flush_cache_sigtramp+1c/30>
4: 00031823 negu v1,v1
Code; 8010cd4c <r4k_flush_cache_sigtramp+20/30>
8: 00832024 and a0,a0,v1
Code; 8010cd50 <r4k_flush_cache_sigtramp+24/30> <=====
c: bc900000 0xbc900000 <=====
Code; 8010cd54 <r4k_flush_cache_sigtramp+28/30>
10: 03e00008 jr ra
Code; 8010cd58 <r4k_flush_cache_sigtramp+2c/30>
14: 00000000 nop
Code; 8010cd5c <r4k_flush_icache_all+0/3c>
18: 3c028035 lui v0,0x8035
Code; 8010cd60 <r4k_flush_icache_all+4/3c>
1c: 8c42881c lw v0,-30692(v0)
Code; 8010cd64 <r4k_flush_icache_all+8/3c>
20: 27bdffe8 addiu sp,sp,-24
But on the times it has happened after a few hours / a day or so it has happened due to activity on the serial console when running general linux commands the oops traces are at the end of this email.
I am using a 2.4.24 kernel from linux-mips cvs.
Does anyone have any idea what could be causing this ? And possible ways to fix it ?
Can someone explain to me why the cache flushing routines are triggering a "reserved instruction" at random like this when up to the point of failure the same code must have been executed millions of times without triggering the exception ?
Any help in debugging this is greatly appreciated.
Failure in sshd :
Reserved instruction in kernel code in traps.c::do_ri, line 663:
$0 : 00000000 80000000 80001c00 80001000 80000c00 00001000 00000001 00004000
$8 : 00001000 00000000 820700f0 00000000 2afaee50 2afaee9c fffffff8 fffffffa
$16: 810517c8 823acf60 0041ee48 820700f0 0041ee48 00000000 802feda0 00000000
$24: fffffffe 0041ee48 81dd4000 81dd5d98 00000004 8010cabc
Hi : ffffa71d
Lo : 00001da1
epc : 8010d66c Not tainted
Using defaults from ksymoops -t elf32-tradlittlemips -a mips:3000
Status: 1000fc03
Cause : 00800028
Process sshd (pid: 631, stackpage=81dd4000)
Stack: 0041ee48 820700f0 0041ee48 00000000 810517c8 823acf60 0041ee48
80125138 74737271 78777675 000000d8 0015a298 100151fc 0007831e 000000d8
0015a298 00000000 00000000 000000d8 0015a298 000007de 0007831e 802feda0
00000000 0041ee48 823acf60 81dd5f30 00000000 802fedbc 00000001 80125460
801253f4 826d5cf0 82030a20 81dd5ed0 81dd5ed0 820700f0 0007831a 7fff78b0
00000005 ...
Call Trace: [<80125138>] [<80125460>] [<801253f4>] [<80133d74>] [<8010c1d8>]
[<8023112c>] [<80231510>] [<80126d88>] [<80125a0c>] [<8010e8bc>]
Code: bc400260 bc400280 bc4002a0 <bc4002c0> bc4002e0 bc400300 bc400320 bc400340 bc400360
$0 : 00000000 80000000 80001c00 80001000 80000c00 00001000 00000001 00004000
$8 : 00001000 00000000 820700f0 00000000 2afaee50 2afaee9c fffffff8 fffffffa
$16: 810517c8 823acf60 0041ee48 820700f0 0041ee48 00000000 802feda0 00000000
$24: fffffffe 0041ee48 81dd4000 81dd5d98 00000004 8010cabc
Hi : ffffa71d
Lo : 00001da1
epc : 8010d66c Not tainted
Using defaults from ksymoops -t elf32-tradlittlemips -a mips:3000
Status: 1000fc03
Cause : 00800028
Process sshd (pid: 631, stackpage=81dd4000)
Stack: 0041ee48 820700f0 0041ee48 00000000 810517c8 823acf60 0041ee48
80125138 74737271 78777675 000000d8 0015a298 100151fc 0007831e 000000d8
0015a298 00000000 00000000 000000d8 0015a298 000007de 0007831e 802feda0
00000000 0041ee48 823acf60 81dd5f30 00000000 802fedbc 00000001 80125460
801253f4 826d5cf0 82030a20 81dd5ed0 81dd5ed0 820700f0 0007831a 7fff78b0
00000005 ...
Call Trace: [<80125138>] [<80125460>] [<801253f4>] [<80133d74>] [<8010c1d8>]
[<8023112c>] [<80231510>] [<80126d88>] [<80125a0c>] [<8010e8bc>]
Code: bc400260 bc400280 bc4002a0 <bc4002c0> bc4002e0 bc400300 bc400320 bc400340 bc400360
>>$22; 802feda0 <pci_socket_init+20/58>
>>$31; 8010cabc <r4k_flush_icache_page+138/218>
>>PC; 8010d66c <blast_icache32+a0/f0> <=====
Trace; 80125138 <do_no_page+144/3b8>
Trace; 80125460 <handle_mm_fault+b4/278>
Trace; 801253f4 <handle_mm_fault+48/278>
Trace; 80133d74 <free_pages+48/50>
Trace; 8010c1d8 <do_page_fault+160/3c8>
Trace; 8023112c <sock_recvmsg+48/104>
Trace; 80231510 <sock_poll+28/34>
Trace; 80126d88 <do_brk+16c/23c>
Trace; 80125a0c <sys_brk+c8/140>
Trace; 8010e8bc <nopage_tlbl+f0/114>
Trace; 80125460 <handle_mm_fault+b4/278>
Trace; 801253f4 <handle_mm_fault+48/278>
Trace; 80133d74 <free_pages+48/50>
Trace; 8010c1d8 <do_page_fault+160/3c8>
Trace; 8023112c <sock_recvmsg+48/104>
Trace; 80231510 <sock_poll+28/34>
Trace; 80126d88 <do_brk+16c/23c>
Trace; 80125a0c <sys_brk+c8/140>
Trace; 8010e8bc <nopage_tlbl+f0/114>
Code; 8010d660 <blast_icache32+94/f0>
00000000 <_PC>:
Code; 8010d660 <blast_icache32+94/f0>
0: bc400260 0xbc400260
Code; 8010d664 <blast_icache32+98/f0>
4: bc400280 0xbc400280
Code; 8010d668 <blast_icache32+9c/f0>
8: bc4002a0 0xbc4002a0
Code; 8010d66c <blast_icache32+a0/f0> <=====
c: bc4002c0 0xbc4002c0 <=====
Code; 8010d670 <blast_icache32+a4/f0>
10: bc4002e0 0xbc4002e0
Code; 8010d674 <blast_icache32+a8/f0>
14: bc400300 0xbc400300
Code; 8010d678 <blast_icache32+ac/f0>
18: bc400320 0xbc400320
Code; 8010d67c <blast_icache32+b0/f0>
1c: bc400340 0xbc400340
Code; 8010d680 <blast_icache32+b4/f0>
20: bc400360 0xbc400360
00000000 <_PC>:
Code; 8010d660 <blast_icache32+94/f0>
0: bc400260 0xbc400260
Code; 8010d664 <blast_icache32+98/f0>
4: bc400280 0xbc400280
Code; 8010d668 <blast_icache32+9c/f0>
8: bc4002a0 0xbc4002a0
Code; 8010d66c <blast_icache32+a0/f0> <=====
c: bc4002c0 0xbc4002c0 <=====
Code; 8010d670 <blast_icache32+a4/f0>
10: bc4002e0 0xbc4002e0
Code; 8010d674 <blast_icache32+a8/f0>
14: bc400300 0xbc400300
Code; 8010d678 <blast_icache32+ac/f0>
18: bc400320 0xbc400320
Code; 8010d67c <blast_icache32+b0/f0>
1c: bc400340 0xbc400340
Code; 8010d680 <blast_icache32+b4/f0>
20: bc400360 0xbc400360
Failure in ls :
Reading Oops report from the terminal
Reserved instruction in kernel code in traps.c::do_ri, line 663:
$0 : 00000000 80000000 80002000 80001000 80000000 00002000 000079d8 00004000
$8 : 00000001 00000000 8349a0e8 00000b3b 7f1c0300 00000001 65726168 00000115
$16: 810e7d2c 834cb740 0041da54 8349a0e8 0041da54 00000000 83a96460 00000000
$24: 00000000 2abede20 8010f58b 83481d98 00000000 8010cabc
Hi : ffff031c
Lo : 0000544c
epc : 8010d634 Not tainted
Using defaults from ksymoops -t elf32-tradlittlemips -a mips:3000
Status: 1000fc03
Cause : 00800028
Process ls (pid: 1335, stackpage=83480000)
Stack: 0041da54 8349a0e8 0041da54 00000000 810e7d2c 834cb740 0041da54
80125138 4c4b4a49 504f4e4d 000000d8 0010b2d8 62615a59 66656463 000000d8
0010b2d8 00000000 00000000 000000d8 0010b2d8 48474645 4c4b4a49 83a96460
00000000 0041da54 834cb740 83481f30 00000000 83a9647c 00000000 80125460
801253f4 44434241 48474645 7fff7ce0 00000000 8349a0e8 83481eb8 80312cd0
2ad2d520 ...
Call Trace: [<80125138>] [<80125460>] [<801253f4>] [<801198e8>] [<8010c1d8>]
[<801bf480>] [<80125b4c>] [<80126e08>] [<801ae43c>] [<8014de3c>] [<80125a0c>]
[<8010e8bc>]
Code: bc4000a0 bc4000c0 bc4000e0 <bc400100> bc400120 bc400140 bc400160 bc400180 bc4001a0
Reserved instruction in kernel code in traps.c::do_ri, line 663:
$0 : 00000000 80000000 80002000 80001000 80000000 00002000 000079d8 00004000
$8 : 00000001 00000000 8349a0e8 00000b3b 7f1c0300 00000001 65726168 00000115
$16: 810e7d2c 834cb740 0041da54 8349a0e8 0041da54 00000000 83a96460 00000000
$24: 00000000 2abede20 8010f58b 83481d98 00000000 8010cabc
Hi : ffff031c
Lo : 0000544c
epc : 8010d634 Not tainted
Using defaults from ksymoops -t elf32-tradlittlemips -a mips:3000
Status: 1000fc03
Cause : 00800028
Process ls (pid: 1335, stackpage=83480000)
Stack: 0041da54 8349a0e8 0041da54 00000000 810e7d2c 834cb740 0041da54
80125138 4c4b4a49 504f4e4d 000000d8 0010b2d8 62615a59 66656463 000000d8
0010b2d8 00000000 00000000 000000d8 0010b2d8 48474645 4c4b4a49 83a96460
00000000 0041da54 834cb740 83481f30 00000000 83a9647c 00000000 80125460
801253f4 44434241 48474645 7fff7ce0 00000000 8349a0e8 83481eb8 80312cd0
2ad2d520 ...
Call Trace: [<80125138>] [<80125460>] [<801253f4>] [<801198e8>] [<8010c1d8>]
[<801bf480>] [<80125b4c>] [<80126e08>] [<801ae43c>] [<8014de3c>] [<80125a0c>]
[<8010e8bc>]
Code: bc4000a0 bc4000c0 bc4000e0 <bc400100> bc400120 bc400140 bc400160 bc400180 bc4001a0
>>$28; 8010f58b <schedule+1d3/4fc>
>>$31; 8010cabc <r4k_flush_icache_page+138/218>
>>PC; 8010d634 <blast_icache32+68/f0> <=====
Trace; 80125138 <do_no_page+144/3b8>
Trace; 80125460 <handle_mm_fault+b4/278>
Trace; 801253f4 <handle_mm_fault+48/278>
Trace; 801198e8 <parse_table+16c/174>
Trace; 8010c1d8 <do_page_fault+160/3c8>
Trace; 801bf480 <ltxser_interrupt+204/32c>
Trace; 80125b4c <__vma_link+44/dc>
Trace; 80126e08 <do_brk+1ec/23c>
Trace; 801ae43c <tty_ioctl+15c/51c>
Trace; 8014de3c <sys_ioctl+a0/2e4>
Trace; 80125a0c <sys_brk+c8/140>
Trace; 8010e8bc <nopage_tlbl+f0/114>
Trace; 80125460 <handle_mm_fault+b4/278>
Trace; 801253f4 <handle_mm_fault+48/278>
Trace; 801198e8 <parse_table+16c/174>
Trace; 8010c1d8 <do_page_fault+160/3c8>
Trace; 801bf480 <ltxser_interrupt+204/32c>
Trace; 80125b4c <__vma_link+44/dc>
Trace; 80126e08 <do_brk+1ec/23c>
Trace; 801ae43c <tty_ioctl+15c/51c>
Trace; 8014de3c <sys_ioctl+a0/2e4>
Trace; 80125a0c <sys_brk+c8/140>
Trace; 8010e8bc <nopage_tlbl+f0/114>
Code; 8010d628 <blast_icache32+5c/f0>
00000000 <_PC>:
Code; 8010d628 <blast_icache32+5c/f0>
0: bc4000a0 0xbc4000a0
Code; 8010d62c <blast_icache32+60/f0>
4: bc4000c0 0xbc4000c0
Code; 8010d630 <blast_icache32+64/f0>
8: bc4000e0 0xbc4000e0
Code; 8010d634 <blast_icache32+68/f0> <=====
c: bc400100 0xbc400100 <=====
Code; 8010d638 <blast_icache32+6c/f0>
10: bc400120 0xbc400120
Code; 8010d63c <blast_icache32+70/f0>
14: bc400140 0xbc400140
Code; 8010d640 <blast_icache32+74/f0>
18: bc400160 0xbc400160
Code; 8010d644 <blast_icache32+78/f0>
1c: bc400180 0xbc400180
Code; 8010d648 <blast_icache32+7c/f0>
20: bc4001a0 0xbc4001a0
00000000 <_PC>:
Code; 8010d628 <blast_icache32+5c/f0>
0: bc4000a0 0xbc4000a0
Code; 8010d62c <blast_icache32+60/f0>
4: bc4000c0 0xbc4000c0
Code; 8010d630 <blast_icache32+64/f0>
8: bc4000e0 0xbc4000e0
Code; 8010d634 <blast_icache32+68/f0> <=====
c: bc400100 0xbc400100 <=====
Code; 8010d638 <blast_icache32+6c/f0>
10: bc400120 0xbc400120
Code; 8010d63c <blast_icache32+70/f0>
14: bc400140 0xbc400140
Code; 8010d640 <blast_icache32+74/f0>
18: bc400160 0xbc400160
Code; 8010d644 <blast_icache32+78/f0>
1c: bc400180 0xbc400180
Code; 8010d648 <blast_icache32+7c/f0>
20: bc4001a0 0xbc4001a0
Failure in stat:
Reserved instruction in kernel code in traps.c::do_ri, line 663:
$0 : 00000000 80000000 80002400 80001000 80000400 00002000 000079d8 00004000
$8 : 00000001 00000000 82ea8828 6ffffeff 6fffff72 00000063 40f2d4f7 00000000
$16: 810eeb84 834cb920 2ab051ac 82ea8828 2ab051ac 00000000 83a96460 00000000
$24: 00000000 2aabcd10 8010f58b 82eb5d98 7fff7678 8010cabc
Hi : fffefb96
Lo : 000056ce
epc : 8010d650 Not tainted
Using defaults from ksymoops -t elf32-tradlittlemips -a mips:3000
Status: 1000fc03
Cause : 00800028
Process stat (pid: 1376, stackpage=82eb4000)
Stack: 2ab051ac 82ea8828 2ab051ac 00000000 810eeb84 834cb920 2ab051ac
80125138 00000000 856ff768 000000d8 0015b458 000005dc 000baa5c 000000d8
0015b458 00000000 00000000 000000d8 0015b458 000000d8 000baa58 83a96460
00000000 2ab051ac 834cb920 82eb5f30 00000000 83a9647c 00000001 80125460
801253f4 834cb938 834cb920 834cbbc0 834cbbc0 82ea8828 0015bb1a 801267c8
8010e8bc ...
Call Trace: [<80125138>] [<80125460>] [<801253f4>] [<801267c8>] [<8010e8bc>]
[<8010c1d8>] [<80126068>] [<8012d008>] [<801a074c>] [<80108034>] [<8010e8bc>]
Code: bc400180 bc4001a0 bc4001c0 <bc4001e0> bc400200 bc400220 bc400240 bc400260 bc400280
$0 : 00000000 80000000 80002400 80001000 80000400 00002000 000079d8 00004000
$8 : 00000001 00000000 82ea8828 6ffffeff 6fffff72 00000063 40f2d4f7 00000000
$16: 810eeb84 834cb920 2ab051ac 82ea8828 2ab051ac 00000000 83a96460 00000000
$24: 00000000 2aabcd10 8010f58b 82eb5d98 7fff7678 8010cabc
Hi : fffefb96
Lo : 000056ce
epc : 8010d650 Not tainted
Using defaults from ksymoops -t elf32-tradlittlemips -a mips:3000
Status: 1000fc03
Cause : 00800028
Process stat (pid: 1376, stackpage=82eb4000)
Stack: 2ab051ac 82ea8828 2ab051ac 00000000 810eeb84 834cb920 2ab051ac
80125138 00000000 856ff768 000000d8 0015b458 000005dc 000baa5c 000000d8
0015b458 00000000 00000000 000000d8 0015b458 000000d8 000baa58 83a96460
00000000 2ab051ac 834cb920 82eb5f30 00000000 83a9647c 00000001 80125460
801253f4 834cb938 834cb920 834cbbc0 834cbbc0 82ea8828 0015bb1a 801267c8
8010e8bc ...
Call Trace: [<80125138>] [<80125460>] [<801253f4>] [<801267c8>] [<8010e8bc>]
[<8010c1d8>] [<80126068>] [<8012d008>] [<801a074c>] [<80108034>] [<8010e8bc>]
Code: bc400180 bc4001a0 bc4001c0 <bc4001e0> bc400200 bc400220 bc400240 bc400260 bc400280
>>$28; 8010f58b <schedule+1d3/4fc>
>>$31; 8010cabc <r4k_flush_icache_page+138/218>
>>PC; 8010d650 <blast_icache32+84/f0> <=====
Trace; 80125138 <do_no_page+144/3b8>
Trace; 80125460 <handle_mm_fault+b4/278>
Trace; 801253f4 <handle_mm_fault+48/278>
Trace; 801267c8 <unmap_fixup+1e4/1fc>
Trace; 8010e8bc <nopage_tlbl+f0/114>
Trace; 8010c1d8 <do_page_fault+160/3c8>
Trace; 80126068 <do_mmap_pgoff+350/5b0>
Trace; 8012d008 <mprotect_fixup+1f0/534>
Trace; 801a074c <fpu_emulator_cop1Handler+198/1bc>
Trace; 80108034 <do_cpu+2e0/334>
Trace; 8010e8bc <nopage_tlbl+f0/114>
Trace; 80125460 <handle_mm_fault+b4/278>
Trace; 801253f4 <handle_mm_fault+48/278>
Trace; 801267c8 <unmap_fixup+1e4/1fc>
Trace; 8010e8bc <nopage_tlbl+f0/114>
Trace; 8010c1d8 <do_page_fault+160/3c8>
Trace; 80126068 <do_mmap_pgoff+350/5b0>
Trace; 8012d008 <mprotect_fixup+1f0/534>
Trace; 801a074c <fpu_emulator_cop1Handler+198/1bc>
Trace; 80108034 <do_cpu+2e0/334>
Trace; 8010e8bc <nopage_tlbl+f0/114>
Code; 8010d644 <blast_icache32+78/f0>
00000000 <_PC>:
Code; 8010d644 <blast_icache32+78/f0>
0: bc400180 0xbc400180
Code; 8010d648 <blast_icache32+7c/f0>
4: bc4001a0 0xbc4001a0
Code; 8010d64c <blast_icache32+80/f0>
8: bc4001c0 0xbc4001c0
Code; 8010d650 <blast_icache32+84/f0> <=====
c: bc4001e0 0xbc4001e0 <=====
Code; 8010d654 <blast_icache32+88/f0>
10: bc400200 0xbc400200
Code; 8010d658 <blast_icache32+8c/f0>
14: bc400220 0xbc400220
Code; 8010d65c <blast_icache32+90/f0>
18: bc400240 0xbc400240
Code; 8010d660 <blast_icache32+94/f0>
1c: bc400260 0xbc400260
Code; 8010d664 <blast_icache32+98/f0>
20: bc400280 0xbc400280
00000000 <_PC>:
Code; 8010d644 <blast_icache32+78/f0>
0: bc400180 0xbc400180
Code; 8010d648 <blast_icache32+7c/f0>
4: bc4001a0 0xbc4001a0
Code; 8010d64c <blast_icache32+80/f0>
8: bc4001c0 0xbc4001c0
Code; 8010d650 <blast_icache32+84/f0> <=====
c: bc4001e0 0xbc4001e0 <=====
Code; 8010d654 <blast_icache32+88/f0>
10: bc400200 0xbc400200
Code; 8010d658 <blast_icache32+8c/f0>
14: bc400220 0xbc400220
Code; 8010d65c <blast_icache32+90/f0>
18: bc400240 0xbc400240
Code; 8010d660 <blast_icache32+94/f0>
1c: bc400260 0xbc400260
Code; 8010d664 <blast_icache32+98/f0>
20: bc400280 0xbc400280
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