From: Jun Sun <jsun@mvista.com>
To: linux-mips@oss.sgi.com
Subject: Malta bus error
Date: Thu, 18 Jul 2002 17:20:28 -0700 [thread overview]
Message-ID: <3D375B4C.9000403@mvista.com> (raw)
I got the following bus error on Malta. Does anybody know what causes the
fault? Is there anyway to disable the error? Or we should install a malta
bus_error_handler() to discard this kind of error?
Apparently the error has something to do with the code layout as it only
happens when I start to modify an unrelated function( do_ri()).
I am using the latest linux_2_4 branch from oss.sgi.com CVS tree.
Jun
----------------
Loading modules:
modprobe: Can't open dependencies file /lib/modules/2.4.19-rc1/modules.dep (No s
uch file or directory)
Mounting local filesystems...
nothing was mounted
Cleaning: /etc/network/ifstate.
Data bus error, epc == 8021b600, ra == 8013ea80
Oops in traps.c::do_be, line 459:
$0 : 00000000 802f601e 802f601e 00000000 83ffffe0 802f6002 0000000c 802f601e
$8 : 00006374 00002e63 00000002 6374652f 66690a0a 00000080 80355d48 2d205b20
$16: 0000001e 83ffffde 00000fde 0000001e 802f6000 0001ffde 00000001 80355ee0
$24: 0000000c 00000080 80354000 80355d50 00000000 8013ea80
Hi : fffd000c
Lo : 0000fffc
epc : 8021b600 Not tainted
Status: 1000fc03
Cause : 0080201c
Process rcS (pid: 43, stackpage=80354000)
Stack: 80355e38 00000000 ffffffff 800028a0 80355ee4 10014408 ffffffff 00000080
802f6000 10014408 10019028 80355f30 00000000 10016da8 00000000 8013eb04
00000001 00000000 80355db8 802f6000 80355e38 8013fae0 8026d974 8026dbb0
000001d2 80005260 622f2123 732f6e69 0a230a68 74732023 2f747261 706f7473
74656e20 6b726f77 20676e69 6d656164 2e736e6f 230a230a 6b686320 666e6f63
203a6769 ...
Call Trace:
Code: 98a80000 98a90004 24c6fff0 <88a80003> 88a90007 98aa0008 98ab000c 88aa
000b 88ab000f
CoreHI interrupt, shouldn't happen, so we die here!!!
--------------------------
ffffffff8021b5e0 <src_unaligned_dst_aligned>:
ffffffff8021b5e0: 00064102 srl $t0,$a2,0x4
ffffffff8021b5e4: cca00060 lwc3 $0,96($a1)
ffffffff8021b5e8: 11000014 beqz $t0,ffffffff8021b63c <cleanup_sr
c_unaligned>
ffffffff8021b5ec: 30d8000f andi $t8,$a2,0xf
ffffffff8021b5f0: cc810060 lwc3 $1,96($a0)
ffffffff8021b5f4: 98a80000 lwr $t0,0($a1)
ffffffff8021b5f8: 98a90004 lwr $t1,4($a1)
ffffffff8021b5fc: 24c6fff0 addiu $a2,$a2,-16
ffffffff8021b600: 88a80003 lwl $t0,3($a1)
ffffffff8021b604: 88a90007 lwl $t1,7($a1)
ffffffff8021b608: 98aa0008 lwr $t2,8($a1)
ffffffff8021b60c: 98ab000c lwr $t3,12($a1)
ffffffff8021b610: 88aa000b lwl $t2,11($a1)
ffffffff8021b614: 88ab000f lwl $t3,15($a1)
ffffffff8021b618: cca00120 lwc3 $0,288($a1)
ffffffff8021b61c: 24a50010 addiu $a1,$a1,16
ffffffff8021b620: ac880000 sw $t0,0($a0)
ffffffff8021b624: ac890004 sw $t1,4($a0)
ffffffff8021b628: ac8a0008 sw $t2,8($a0)
ffffffff8021b62c: ac8b000c sw $t3,12($a0)
ffffffff8021b630: cc810120 lwc3 $1,288($a0)
next reply other threads:[~2002-07-19 0:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-19 0:20 Jun Sun [this message]
2002-07-19 1:07 ` Malta bus error H. J. Lu
2002-07-19 1:05 ` Jun Sun
2002-07-19 6:39 ` Carsten Langgaard
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=3D375B4C.9000403@mvista.com \
--to=jsun@mvista.com \
--cc=linux-mips@oss.sgi.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox