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[OOPS] with 2.3.99-pre on Indigo2 while trying to configure Samba 2.0.7

To: Linux MIPS <linux-mips@fnet.fr>, Linux MIPS cthulhu <linux@cthulhu.engr.sgi.com>
Subject: [OOPS] with 2.3.99-pre on Indigo2 while trying to configure Samba 2.0.7
From: Klaus Naumann <spock@mgnet.de>
Date: Fri, 19 May 2000 19:11:03 +0200
Reply-to: spock@mgnet.de
Hi,

Flo found out that trying to configure Samba 2.0.7 on his
Indigo2 with 2.3.99-pre8 generates and oops at some point. 
I tried too and got the same result.
I tried to track the error down. Here's what I found out:
1st this is the ksymoops output of the dump - it _really_
looks like this is a MIPS problem:

>>RA;  8803ecd0 <filemap_sync+220/4b0>
>>PC;  8801e8d8 <r4k_flush_cache_page_s128d16i16+74/314>   <=====
Trace; 88048400 <free_page_and_swap_cache+104/118>
Trace; 8803ef70 <filemap_unmap+10/1c>
Trace; 8803b060 <exit_mmap+78/198>
Trace; 8803b12c <exit_mmap+144/198>
Trace; 880279b8 <mmput+3c/74>
Trace; 88034cc0 <acct_process+18/28>
Trace; 8802fa64 <do_exit+d8/338>
Trace; 8802fa30 <do_exit+a4/338>
Trace; 8802fcd8 <sys_wait4+0/590>
Trace; 88010ec8 <stack_done+1c/38>
Trace; 88010858 <nopage_tlbl+f4/fc>
Code;  8801e8cc <r4k_flush_cache_page_s128d16i16+68/314>
0000000000000000 <_PC>:
Code;  8801e8cc <r4k_flush_cache_page_s128d16i16+68/314>
   0:   8c840014  lw      $a0,20($a0)
Code;  8801e8d0 <r4k_flush_cache_page_s128d16i16+6c/314>
   4:   8f82002c  lw      $v0,44($gp)
Code;  8801e8d4 <r4k_flush_cache_page_s128d16i16+70/314>
   8:   8cc30044  lw      $v1,68($a2)
Code;  8801e8d8 <r4k_flush_cache_page_s128d16i16+74/314>   <=====
   c:   8c420044  lw      $v0,68($v0)   <=====
Code;  8801e8dc <r4k_flush_cache_page_s128d16i16+78/314>
  10:   1062007a  beq     $v1,$v0,1fc <_PC+1fc> 8801eac8
<r4k_flush_cache_page_s128d16i16+264/314>
Code;  8801e8e0 <r4k_flush_cache_page_s128d16i16+7c/314>
  14:   30840004  andi    $a0,$a0,0x4
Code;  8801e8e4 <r4k_flush_cache_page_s128d16i16+80/314>
  18:   3c028819  lui     $v0,0x8819
Code;  8801e8e8 <r4k_flush_cache_page_s128d16i16+84/314>
  1c:   8c42d440  lw      $v0,-11200($v0)
Code;  8801e8ec <r4k_flush_cache_page_s128d16i16+88/314>
  20:   3c038000  lui     $v1,0x8000

2nd the program which causes the dump is attached. It seems
to be a reproducable error in the mmap function.

My kernel knowledge is far away from being able to hunt down
the bug, I hope someone else can take a look.

        HTH, Klaus

-- 
Full Name   : Klaus Naumann     | (http://www.mgnet.de/) (Germany)
Nickname    : Spock             | Org.: Mad Guys Network
Phone / FAX : ++49/3661/675457  | E-Mail: (spock@mgnet.de)
PGP Key     : www.mgnet.de/keys/key_spock.txt

Attachment: shared_mmap.c
Description: Text Data

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