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List:       linux-xfs
Subject:    another bug
From:       Daniel Moore <dxm () clouds ! melbourne ! sgi ! com>
Date:       2000-06-09 3:36:36
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(still working on the stress tests - they seem to be doing the trick)

I'm seeing some funny messages from xfs_zero_last_block

=> xfs_zero_last_block: unwritten? 
=> xfs_zero_last_block: We want DELWRI? not waiting?

just before the page_buf panics

=> delalloc page 0xc106951c with no extent kernel BUG at page_buf.c:5275!
=> Entering kdb (0xc2054000) Panic: invalid operand due to panic @
=> 0xc48122f0 eax = 0x0000001f ebx = 0xc22dfae0 ecx = 0xc029f49c edx =
=> 0xc30b3f84  esi = 0xc106951c edi = 0xc2055fb4 esp = 0xc2055f84 eip =
=> 0xc48122f0  ebp = 0x10010002  ss = 0x00000018  cs = 0x00000010 eflags
=> = 0x00010292 
=>  ds = 0x00000018  es = 0x00000018 origeax = 0xffffffff &regs =
=> 0xc2055f50 kdb> bt
=>     EBP       EIP         Function(args) 0x10010002 0xc48122f0
=> [page_buf]pb_delalloc_convert+0x9c (0xc106951c, 0xc2055fee,
=> 0x10000000, 0x100, 0xc2881d08)
=>                                page_buf .text 0xc480c060 0xc4812254
=> 0xc481241c
=>            0xc4812621 [page_buf]page_cleaner_daemon+0x205
=>                                page_buf .text 0xc480c060 0xc481241c
=> 0xc48126a0
=>            0xc01074a7 kernel_thread+0x23
=>                                kernel .text 0xc0100000 0xc0107484
=> 0xc01074b4 

Can someone tell me what these messages mean? Do they indicate an
XFS error condition or are they just debugging messages?

-----------------------------------------------------
 Daniel Moore                  dxm@sgi.com
 R&D Software Engineer         Phone: +61-3-98348209
 SGI Performance Tools Group   Fax:   +61-3-98132378
-----------------------------------------------------

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