2001-11-26 13:53:53

by Abraham vd Merwe

Subject: 2.4.16-pre1 file system bug

Hi!

I mounted 2 vxfs (Veritas / SCO UnixWare) partitions and typed ls in the
mounted directories. This is the result:

------------< snip <------< snip <------< snip <------------
root@crystal:/SCO# ls 0
kernel BUG at buffer.c:2397!
invalid operand: 0000
CPU: 0
EIP: 0010:[<c0130c61>] Not tainted
EFLAGS: 00010282
eax: 0000001d ebx: 00000003 ecx: c0272080 edx: 00001ebc
esi: 00000001 edi: 00000349 ebp: 000147cc esp: d2625d58
ds: 0018 es: 0018 ss: 0018
Process ls (pid: 293, stackpage=d2625000)
Stack: c022d94c 0000095d 00000349 00000001 000147cc 00000400 0000331a c012f2bb
00000349 000147cc 00000001 000017a4 00000008 00000000 c012f484 00000349
000147cc 00000001 c153ac00 c0158b43 00000349 000147cc 00000001 d26561fc
Call Trace: [<c012f2bb>] [<c012f484>] [<c0158b43>] [<c0158f0a>] [<c0159bf1>]
[<c012fdd8>] [<c01291bf>] [<c0121e68>] [<c0159c27>] [<c0159bdc>] [<c0124058>]
[<c0159b6f>] [<c0159c18>] [<c015928b>] [<c0159474>] [<c013ed8b>] [<c013ef96>]
[<c0159737>] [<c01359bb>] [<c013603e>] [<c013573d>] [<c013629a>] [<c0136651>]
[<c013392d>] [<c0106b2b>]

Code: 0f 0b 83 c4 08 8b 44 24 20 05 00 fe ff ff 3d 00 0e 00 00 76
Segmentation fault
root@crystal:/SCO#
root@crystal:~/BUG# grep c012f /proc/ksyms
c012f374 mark_buffer_dirty
c012f348 __mark_buffer_dirty
c012f294 getblk
c012f46c bread
c012f424 __brelse
c012f444 __bforget
c012fd00 block_read_full_page
c012fec4 cont_prepare_write
c012f414 refile_buffer
c012f04c fsync_inode_data_buffers
c012f3a4 set_buffer_flushtime
c012f54c put_unused_buffer_head
c012f55c get_unused_buffer_head
c012f5d4 set_bh_page
c012f82c create_empty_buffers
------------< snip <------< snip <------< snip <------------

--

Regards
Abraham

interlard - vt., to intersperse; diversify
-- Webster's New World Dictionary Of The American Language

__________________________________________________________
Abraham vd Merwe - 2d3D, Inc.

Device Driver Development, Outsourcing, Embedded Systems

Cell: +27 82 565 4451 Snailmail:
Tel: +27 21 761 7549 Block C, Antree Park
Fax: +27 21 761 7648 Doncaster Road
Email: [email protected] Kenilworth, 7700
Http: http://www.2d3d.com South Africa

2001-11-26 14:04:34

by Christoph Hellwig

Subject: Re: 2.4.16-pre1 file system bug

In article <[email protected]> you wrote:
> Hi!

> I mounted 2 vxfs (Veritas / SCO UnixWare) partitions and typed ls in the
> mounted directories. This is the result:

Please add the line

EXTRA_CFLAGS := -DDIAGNOSTIC

to fs/freevxfs/Makefile and send me the dmesg output of the
recompiled kernel.

Christoph

--
Of course it doesn't work. We've performed a software upgrade.